From 6b900bb4bcb6095339f8d404babd9d779bfa1ea4 Mon Sep 17 00:00:00 2001 From: Auke Kok Date: Thu, 25 May 2006 13:24:21 -0700 Subject: [PATCH] ixgb: use rx copybreak/skb recycle o use rx copybreak/skb recycle Signed-off-by: Jesse Brandeburg Signed-off-by: Auke Kok Signed-off-by: John Ronciak --- drivers/net/ixgb/ixgb_main.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 27034b3ba80b..0e23994a6a76 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -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); -- GitLab