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Subject: Re: [virtio-dev] VIRTIO_BLK_F_CONFIG_WCE removed from virtio 1.0?
On 02/07/2015 07:08, Michael S. Tsirkin wrote: > On Wed, Jul 01, 2015 at 11:50:19PM +0200, Paolo Bonzini wrote: >> I guess we were a bit overzealous in removing VIRTIO_BLK_F_FLUSH aka >> VIRTIO_BLK_F_WCE. The VIRTIO_BLK_F_CONFIG_WCE is a useful feature and >> should be preserved in order to achieve feature parity between 0.9 and 1.0. >> >> Sorry for commenting on this so close to the deadline, but I think this >> is a blocker. :( I'll send a patch shortly. >> >> Paolo > > Yes but it's been like this since CS01, correct? > I would rather release CS03 as is, work on CS04 > in parallel. > > Do you agree? It's the same. More precisely, I think it is a blocker for starting to work on 1.1. > Also - maybe we can bring back scsi command support as well? No, SCSI command was a bad feature to begin with (a hack due to lack of virtio-scsi). It has been deprecated years ago, and cannot be done compatibly because it relies on the framing of buffers. This feature is new and useful for performance. > Also - pls open an issue tracker. Done, VIRTIO-144. Paolo
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