Christoph,
> On Wed, Sep 18, 2019 at 11:08:07AM -0600, Keith Busch wrote: >> And yes, that bouncing is really nasty, but it's really only needed for >> PRP, so maybe let's just not ignore that transfer mode and support >> extended metadata iff the controller supports SGLs. We just need a >> special SGL setup routine to weave the data and metadata. > > Well, what is the point? If people really want to use metadata they > should just buy a drive supporting the separate metadata pointer. In > fact I haven't had to deal with a drive that only supports interleaved > metadata so far given how awkward that is to deal with. Yep. There's a reason we did DIX... -- Martin K. Petersen Oracle Linux Engineering
