On Thu, 29 Nov 2007 14:36:30 -0500 Jeff Garzik <jeff@xxxxxxxxxx> wrote: > Alan Cox wrote: > >> DMA alignment is host restriction so I think it belongs to ata_host if > >> we ever need it. Do you know of any controller which require such > >> thing? No need to add complexity when it's not necessary. > > > > If we ever get the blasted inic162x working then that appears to have > > some alignment limits. At least the docs say the DMA buffers must be quad > > word aligned and sized (although it doesn't describe what occurs if the > > total length of xfer disagrees with the buffers) > > Most DMA has alignment limits, for the front not the back of the buffer. Note I said "and sized" - its got restrictions for both buffer ends in effect - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
