tg3: Fix poor tx performance on 57766 after MTU change

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GRC reset causes the read DMA engine to go into a mode that breaks up
requests into 256 bytes.  A PHY reset is required to bring it back to
the normal mode.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michael Chan 2012-03-04 14:48:15 +00:00 • committed by David S. Miller

parent 6541b806b5

commit 2fae5e3670

1 changed files with 8 additions and 2 deletions

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drivers/net/ethernet/broadcom/tg3.c

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