e1000: convert to build_skb

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Instead of preallocating Rx skbs, allocate them right before sending
inbound packet up the stack.

e1000-kvm, mtu1500, netperf TCP_STREAM:
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec
old: 87380  16384  16384    60.00    4532.40
new: 87380  16384  16384    60.00    4599.05

Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Florian Westphal 2014-09-03 13:34:36 +00:00 • committed by Jeff Kirsher

parent 580f321d84

commit 1380960961

3 changed files with 131 additions and 120 deletions

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6

drivers/net/ethernet/intel/e1000/e1000.h

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29

drivers/net/ethernet/intel/e1000/e1000_ethtool.c

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218

drivers/net/ethernet/intel/e1000/e1000_main.c

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