[ixp1200] I have a DMA question.

[Øyvind Hvamstad]

I'm also very interested in such functionality, so if you make it work,
please let me know. :)

On Mon, 2003-12-01 at 10:04, Cho, joon-woo wrote:
> 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
-- 
Øyvind Hvamstad <oyvindh at ifi.uio.no>