stmmac: add last_segment field to dma data

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last_segment field is read twice from dma descriptors in stmmac_clean().
Add last_segment to dma data so that this flag is from priv
structure in cache instead of memory.
It avoids reading twice from memory for each loop in stmmac_clean().

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-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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Giuseppe Cavallaro 2016-02-29 14:27:32 +01:00 • committed by David S. Miller

parent 553e2ab313

commit 2a6d8e1726

3 changed files with 7 additions and 2 deletions

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3

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

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1

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

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5

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

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