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Eric Dumazet 042a53a9e4 net: skb_shared_info optimization ... skb_dma_unmap() is quite expensive for small packets, because we use two different cache lines from skb_shared_info. One to access nr_frags, one to access dma_maps[0] Instead of dma_maps being an array of MAX_SKB_FRAGS + 1 elements, let dma_head alone in a new dma_head field, close to nr_frags, to reduce cache lines misses. Tested on my dev machine (bnx2 & tg3 adapters), nice speedup ! Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		16 years ago
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Makefile	ixgb: update copyright dates and versions	17 years ago
ixgb.h	drivers/net: replace __FUNCTION__ with __func__	17 years ago
ixgb_ee.c	ixgb: update copyright dates and versions	17 years ago
ixgb_ee.h	ixgb: update copyright dates and versions	17 years ago
ixgb_ethtool.c	ixgb: update copyright dates and versions	17 years ago
ixgb_hw.c	ixgb: Use generic MDIO definitions	16 years ago
ixgb_hw.h	ixgb: Use generic MDIO definitions	16 years ago
ixgb_ids.h	ixgb: update copyright dates and versions	17 years ago
ixgb_main.c	net: skb_shared_info optimization	16 years ago
ixgb_osdep.h	drivers/net: replace BUG() with BUG_ON() if possible	16 years ago
ixgb_param.c	ixgb: update copyright dates and versions	17 years ago