luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ixgb: use rx copybreak/skb recycle

Browse Source 
o use rx copybreak/skb recycle

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
This commit is contained in:
Auke Kok 2006-05-25 13:24:21 -07:00 committed by Auke Kok
parent 1dfdd7df21
commit 6b900bb4bc
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/net/ixgb/ixgb_main.c
View File

@ -1990,6 +1990,26 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
goto rxdesc_done;
}
/* code added for copybreak, this should improve
* performance for small packets with large amounts
* of reassembly being done in the stack */
#define IXGB_CB_LENGTH 256
if (length < IXGB_CB_LENGTH) {
struct sk_buff *new_skb =
dev_alloc_skb(length + NET_IP_ALIGN);
if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN);
new_skb->dev = netdev;
memcpy(new_skb->data - NET_IP_ALIGN,
skb->data - NET_IP_ALIGN,
length + NET_IP_ALIGN);
/* save the skb in buffer_info as good */
buffer_info->skb = skb;
skb = new_skb;
}
}
/* end copybreak code */
/* Good Receive */
skb_put(skb, length);