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Commit 6b900bb4 authored by Auke Kok's avatar Auke Kok Committed by Auke Kok
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ixgb: use rx copybreak/skb recycle 



o use rx copybreak/skb recycle

Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: default avatarJohn Ronciak <john.ronciak@intel.com>
parent 1dfdd7df

drivers/net/ixgb/ixgb_main.c

+20 −0
Original line number Diff line number Diff line
@@ -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);