On Friday 03 August 2001 04:23, wrote:
> I believe this behaviour is only possible for cards which have the
> ability to dma what appears as a list of skb data fragments and
> also has the ability to checksum the data. Namely the Alteon, now
> 3com, ACENIC and the sun hme device.
Intel now has an e1000 driver as well.
> Does this kernel modification completely remove the need for a
> copy/checksum of the data between user and kernel space on both
> transmit and receive ?
Transmit for sure. You should no longer see csum_partial_copy_generic() when
> I have written a driver for an Intel ixf1002 chip, which has some
> surrounding HW, and is capable of checksumming and processing
> dma in fragments. Is there any information on what changes I
> would have to make to the driver to support zerocopy/checksum ?
Which card is this?
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This archive was generated by hypermail 2b29 : Tue Aug 07 2001 - 21:00:27 EST