Re: [PATCH v6 00/20] Add VFIO mediated device support and DEV-MSI support for the idxd driver
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2021-06-03 01:49:37
Also in:
dmaengine, lkml
From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2021-06-03 01:49:37
Also in:
dmaengine, lkml
On Thu, Jun 03, 2021 at 01:11:37AM +0000, Tian, Kevin wrote:
Jason, can you clarify your attitude on mdev guid stuff? Are you completely against it or case-by-case? If the former, this is a big decision thus it's better to have consensus with Alex/Kirti. If the latter, would like to hear your criteria for when it can be used and when not...
I dislike it generally, but it exists so <shrug>. I know others feel more strongly about it being un-kernely and the wrong way to use sysfs. Here I was remarking how the example in the cover letter made the mdev part seem totally pointless. If it is pointless then don't do it. Remember we have stripped away the actual special need to use mdev. You don't *have* to use mdev anymore to use vfio. That is a significant ideology change even from a few months ago. Jason