sfc: Use TX PIO for sufficiently small packets

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Sufficiently small linear packets can be copied into the PIO buffer
with a single call to memcpy_toio().  Non-linear packets require an
intermediate cache-line-sized buffer.

[bwh: I wrote the first version of this, but Jon did the hard work to
 handle non-linear packets.]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

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Jon Cooper 2013-09-02 18:24:29 +01:00 • committed by Ben Hutchings

parent 0fe5565b64

commit ee45fd92c7

4 changed files with 155 additions and 0 deletions

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1

drivers/net/ethernet/sfc/ef10_regs.h

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1

drivers/net/ethernet/sfc/ethtool.c

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2

drivers/net/ethernet/sfc/net_driver.h

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151

drivers/net/ethernet/sfc/tx.c

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