net: ena: fix incorrect usage of memory barriers

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Added memory barriers where they were missing to support multiple
architectures, and removed redundant ones.

As part of removing the redundant memory barriers and improving
performance, we moved to more relaxed versions of memory barriers,
as well as to the more relaxed version of writel - writel_relaxed,
while maintaining correctness.

Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Netanel Belgazal 2018-09-09 08:15:26 +00:00 • committed by David S. Miller

parent 28abf4e9c9

commit 37dff155dc

4 changed files with 26 additions and 34 deletions

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16

drivers/net/ethernet/amazon/ena/ena_com.c

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6

drivers/net/ethernet/amazon/ena/ena_eth_com.c

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8

drivers/net/ethernet/amazon/ena/ena_eth_com.h

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30

drivers/net/ethernet/amazon/ena/ena_netdev.c

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