ibmveth: Add tx_copybreak

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Use the existing bounce buffer if we send a buffer under a certain size.
This saves the overhead of a TCE map/unmap.

I can't see any reason for the wmb() in the bounce buffer case, if we need
a barrier it will be before we call h_send_logical_lan but we have
nothing in the common case. Remove it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Santiago Leon <santil@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Santiago Leon 2010-09-03 18:28:20 +00:00 • committed by David S. Miller

parent e8cb7eb473

commit c08cc3cceb

1 changed files with 20 additions and 8 deletions

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drivers/net/ibmveth.c

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