stmmac: merge get_rx_owner into rx_status routine.

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The RDES0 register can be read several times while doing RX of a
packet.
This patch slightly improves RX path performance by reading rdes0
once for two operation: check rx owner, get rx status bits.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Fabrice Gasnier 2016-02-29 14:27:34 +01:00 • committed by David S. Miller

parent 96951366ce

commit c1fa3212be

4 changed files with 16 additions and 21 deletions

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10

drivers/net/ethernet/stmicro/stmmac/common.h

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9

drivers/net/ethernet/stmicro/stmmac/enh_desc.c

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9

drivers/net/ethernet/stmicro/stmmac/norm_desc.c

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9

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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