tg3: switch to build_skb() infrastructure

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This is very similar to bnx2x conversion, but simpler since no special
alignement is required, so goal was not to reduce skb truesize.

Using build_skb() reduces cache line misses in the driver, since we
use cache hot skb instead of cold ones. Number of in-flight sk_buff
structures is lower, they are more likely recycled in SLUB caches
while still hot.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Matt Carlson <mcarlson@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
CC: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2011-11-18 06:47:01 +00:00 • committed by David S. Miller

parent 37f07023d3

commit 9205fd9cca

2 changed files with 66 additions and 55 deletions

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115

drivers/net/ethernet/broadcom/tg3.c

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6

drivers/net/ethernet/broadcom/tg3.h

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