On Wed, 2006-03-08 at 22:36 +0000, Adrian Cox wrote: > On Mon, 2006-03-06 at 14:39 +1030, Phil Nitschke wrote: > > How is a DMA controlled (from a device driver writer's perspective) when > > a third-party (i.e. in the bridge) DMA controller needs to do the work > > to get the data from a PCI Target into main memory? > > > > What kernel API should be provided by the DMA Controller Driver? > > There is no current API for this in the kernel, but there are some > proposals. From Intel, we have I/OAT, which targets network operations: > http://lkml.org/lkml/2006/3/3/219 > > There's some overlap with the ADMA feature set, which is intended to > accelerate RAID operations: > http://lkml.org/lkml/2006/2/2/442 >
Thanks, Adrian, these are the sorts of APIs I was asking about. At a quick glance, they look a little "bleeding edge" for my comfort zone. (And not an exact match for what I'm trying to do...) Nonetheless, I'll take a closer look at them. Thanks, -- Phil Nitschke <Phil.Nitschke at avalon.com.au> Avalon Systems Pty Ltd
