[ixp1200] I have a DMA question.
Cho, joon-woo
jwc at core.kaist.ac.kr
Mon Dec 1 04:04:55 EST 2003
Hello.
Have anyone use IXP1200's DMA operation?
I want to use DMA for transferring data from host computer's memory
to IXP1200 evaluation board.
Sure, my IXP1200 EB is attached to host computer through PCI slot.
And I write Microengine program like below
1. Make DMA descriptor.
2. point tmp1 to DMA descritptor's address
3. And use pci_dma instruction like below
pci_dma[tmp1, 0, any_queue], ctx_swap
But, after pci_dma instruction, nothing is done more.
Do I mistake? Or do you have similar situation?
Please give me any advice.
Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://lists.cs.princeton.edu/mailman/private/ixp1200/attachments/20031201/2872498b/attachment.htm
More information about the ixp1200
mailing list