Re: e1000 kick

[Scott Feldman <sfeldma@xxxxxxxxx>]

On Fri, 2004-10-08 at 16:17, Scott Huang wrote:
> Is there a way to force tx dma to start on e1000 after
> the I fill up the tx ring to a certain level?

Just delay the write of the Tx tail index (TDT).  Writing to the Tx tail
index signals hardware to start the DMA from Tx head index (TDH) to
TDT.  See code for

        E1000_WRITE_REG(&adapter->hw, TDT, i);

But don't delay too long...you'll trigger the tx_timeout reset.

-scott