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authorJon Cooper <jcooper@solarflare.com>2013-09-02 18:24:29 +0100
committerBen Hutchings <bhutchings@solarflare.com>2013-09-20 19:31:52 +0100
commitee45fd92c739db5b7950163d91dfe5f016af6d24 (patch)
tree43955c4c76179b0e80449a4a2c3ae0cb77942006 /drivers/net/xen-netback
parent0fe5565b64667677a405cf14df49a7af8de4bff4 (diff)
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>
Diffstat (limited to 'drivers/net/xen-netback')
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