Re: [RFC v2 2/5] dmaengine: Add slave DMA interface

[David Brownell]

On Wednesday 30 January 2008, Dan Williams wrote:
> On Jan 30, 2008 3:52 AM, David Brownell <david-b@xxxxxxxxxxx> wrote:
> > On Wednesday 30 January 2008, Haavard Skinnemoen wrote:
> > > Descriptor-based vs. register-based transfers sounds like something the
> > > DMA engine driver is free to decide on its own.
> >
> > Not entirely.  The current interface has "dma_async_tx_descriptor"
> > wired pretty thoroughly into the call structure -- hard to avoid.
> > (And where's the "dma_async_rx_descriptor", since that's only TX??
> > Asymmetry like that is usually not a healthy sign.)  The engine is
> > not free to avoid those descriptors ...
> >
> 
> For better or worse I picked async_tx to represent "asynchronous
> transfers/transforms", not "transmit". 

"dma_async_descriptor" would not be misleading.  :)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/