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/openbmc/linux/drivers/net/ethernet/sfc/
H A Dethtool.cee45fd92 Mon Sep 02 12:24:29 CDT 2013 Jon Cooper <jcooper@solarflare.com> sfc: Use TX PIO for sufficiently small packets

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>
H A Dtx.cee45fd92 Mon Sep 02 12:24:29 CDT 2013 Jon Cooper <jcooper@solarflare.com> sfc: Use TX PIO for sufficiently small packets

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>
H A Dnet_driver.hee45fd92 Mon Sep 02 12:24:29 CDT 2013 Jon Cooper <jcooper@solarflare.com> sfc: Use TX PIO for sufficiently small packets

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>