net: mvpp2: Use relaxed I/O in data path

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Use relaxed I/O on the hot path. This achieves significant performance
improvements. On a 10G link, this makes a basic iperf TCP test go from
an average of 4.5 Gbits/sec to about 9.40 Gbits/sec.

Signed-off-by: Yan Markman <ymarkman@marvell.com>
[Maxime: Commit message, cosmetic changes]
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yan Markman 2018-03-27 16:49:05 +02:00 • committed by David S. Miller

parent 5f75a1863e

commit cdcfeb0fb4

1 changed files with 30 additions and 13 deletions

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drivers/net/ethernet/marvell/mvpp2.c

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