Christoph Hellwig
2021-Apr-12 09:42 UTC
[PATCH] virtio_blk: Add support for lifetime feature
A note to the virtio committee: eMMC is the worst of all the currently active storage standards by a large margin. It defines very strange ad-hoc interfaces that expose very specific internals and often provides very poor abstractions. It would be great it you could reach out to the wider storage community before taking bad ideas from the eMMC standard and putting it into virtio.
Michael S. Tsirkin
2021-Apr-12 12:00 UTC
[PATCH] virtio_blk: Add support for lifetime feature
On Mon, Apr 12, 2021 at 10:42:17AM +0100, Christoph Hellwig wrote:> A note to the virtio committee: eMMC is the worst of all the currently > active storage standards by a large margin. It defines very strange > ad-hoc interfaces that expose very specific internals and often provides > very poor abstractions.Are we talking about the lifetime feature here? UFS has it too right? It's not too late to change things if necessary... it would be great if you could provide more of the feedback on this on the TC mailing list.> It would be great it you could reach out to the > wider storage community before taking bad ideas from the eMMC standard > and putting it into virtio.Noted. It would be great if we had more representation from the storage community ... meanwhile what would a good forum for this be? linux-block at vger.kernel.org ? Thanks, -- MST
Stefan Hajnoczi
2021-Apr-14 08:44 UTC
[PATCH] virtio_blk: Add support for lifetime feature
On Mon, Apr 12, 2021 at 10:42:17AM +0100, Christoph Hellwig wrote:> A note to the virtio committee: eMMC is the worst of all the currently > active storage standards by a large margin. It defines very strange > ad-hoc interfaces that expose very specific internals and often provides > very poor abstractions. It would be great it you could reach out to the > wider storage community before taking bad ideas from the eMMC standard > and putting it into virtio.As Michael mentioned, there is still time to change the virtio-blk spec since this feature hasn't been released yet. Why exactly is exposing eMMC-style lifetime information problematic? Can you and Enrico discuss the use case to figure out an alternative interface? Thanks, Stefan -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 488 bytes Desc: not available URL: <http://lists.linuxfoundation.org/pipermail/virtualization/attachments/20210414/68693a28/attachment.sig>