On 2019/11/21 上午6:39, Parav Pandit wrote:
From: Alex Williamson<alex.williamson@xxxxxxxxxx>
Sent: Wednesday, November 20, 2019 4:08 PM
On Wed, 20 Nov 2019 14:11:08 -0400
Jason Gunthorpe<jgg@xxxxxxxx> wrote:
I feel like mdev is suffering from mission creep. I see people
proposing to use mdev for many wild things, the Mellanox SF stuff in
the other thread and this 'virtio subsystem' being the two that have
come up publicly this month.
Tell me about it...;)
Initial Mellanox sub function proposal was done using dedicated non-mdev subdev bus in [1] because mdev looked very vfio-ish.
Along the way mdev proposal was suggested at [2] by mdev maintainers to use.
The bus existed that detached two drivers (mdev and vfio_mdev), there was some motivation to attach other drivers.
After that we continued discussion and mdev extension using alias to have persistent naming in [3].
So far so good, but when we want to have actual use of mdev driver, it doesn't look right.:-)
Want to implement devlink for mdev then? I think it may help in the case.
Thanks
