On Sat, Nov 24, 2007 at 12:11:08PM -0800, Stephen Hemminger wrote:

Then what about hardware that can't dma ethernet to non-aligned address.
Sky2 hardware breaks if DMA is not 8 byte aligned.  IMHO the IP stack should
handle any alignment, and do the appropriate memove if the CPU requires 
alignment.

Luckily all sky2 users have been on x86 so far :)

Here's an idea.  Put the data of the packet into the page frags
where alignment is not an issue but copy the header so that it
is aligned.

Would that work?

Cheers,
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