[TG3]: Use lower DMA watermark for 5703.

Set DMA read watermark to 4 on 5703 in PCIX mode.  This is needed to
prevent some tx timeouts.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2007-02-13 12:17:03 -08:00 committed by David S. Miller
commit 49afdeb65b