On Wed, 01/10 08:44, Eric Blake wrote:
> On 01/10/2018 03:18 AM, Fam Zheng wrote:
> > This is a new protocol driver that exclusively opens a host NVMe
> > controller through VFIO. It achieves better latency than linux-aio by
> > completely bypassing host kernel vfs/block layer.
> >
>
> > +static BlockDriver bdrv_nvme = {
> > + .format_name = "nvme",
> > + .protocol_name = "nvme",
> > + .instance_size = sizeof(BDRVNVMeState),
> > +
> > + .bdrv_parse_filename = nvme_parse_filename,
> > + .bdrv_file_open = nvme_file_open,
> > + .bdrv_close = nvme_close,
> > + .bdrv_getlength = nvme_getlength,
> > +
> > + .bdrv_co_preadv = nvme_co_preadv,
> > + .bdrv_co_pwritev = nvme_co_pwritev,
> > + .bdrv_co_flush_to_disk = nvme_co_flush,
> > + .bdrv_reopen_prepare = nvme_reopen_prepare,
> > +
> > + .bdrv_co_get_block_status = nvme_co_get_block_status,
>
> Semantic conflict with my pending patches to switch to byte-based block
> status in the drivers.
Should be very easy to rebase for either of us. :)
Fam
