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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	…
e1000_82575.c	…
e1000_82575.h	…
e1000_defines.h	…
e1000_hw.h	…
e1000_mac.c	…
e1000_mac.h	…
e1000_mbx.c	…
e1000_mbx.h	…
e1000_nvm.c	…
e1000_nvm.h	…
e1000_phy.c	…
e1000_phy.h	igb/e1000e: update PSSR_MDIX value to reflect correct bit	16 years ago
e1000_regs.h	…
igb.h	igb: Implement reading of reg RQDPC (Receive Queue Drop Packet Count)	16 years ago
igb_ethtool.c	igb: Record host memory receive overflow in net_stats	16 years ago
igb_main.c	net: skb_shared_info optimization	16 years ago