Re: Call for GSoC and Outreachy project ideas for summer 2023

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On Tue, Feb 7, 2023 at 10:23 AM Alberto Faria <afaria@xxxxxxxxxx> wrote:
> On Mon, Feb 6, 2023 at 9:22 PM Stefan Hajnoczi <stefanha@xxxxxxxxx> wrote:
> > Great that you're interesting, Alberto! Both sound feasible. I would
> > like to co-mentor the zoned storage project or can at least commit to
> > being available to help because zoned storage is currently on my mind
> > anyway :).
>
> Perfect, I'll have time to co-mentor one project, but probably not
> two, so let's leave the NVMe driver project aside for now. If anyone
> wants to take that one over, though, go for it.
>
> > Do you want to write up one or both of them using the project template
> > below? You can use the other project ideas as a reference for how much
> > detail to include: https://wiki.qemu.org/Google_Summer_of_Code_2023
>
> I feel like this is closer to a 175 hour project than a 350 hour one,
> but I'm not entirely sure.
>
>   === Zoned device support for libblkio ===
>
>    '''Summary:''' Add support for zoned block devices to the libblkio library.
>
>    Zoned block devices are special kinds of disks that are split into several
>    regions called zones, where each zone may only be written
> sequentially and data
>    can't be updated without resetting the entire zone.
>
>    libblkio is a library that provides an API for efficiently accessing block
>    devices using modern high-performance block I/O interfaces like
> Linux io_uring.
>
>    The goal is to extend libblkio so users can use it to access zoned devices
>    properly. This will require adding support for more request types, expanding
>    its API to expose additional metadata about the device, and making the
>    appropriate changes to each libblkio "driver".
>
>    This is important for QEMU since it will soon support zoned devices too and
>    several of its BlockDrivers rely on libblkio. In particular, this
> project would
>    enable QEMU to access zoned vhost-user-blk and vhost-vdpa-blk devices.

Also, a stretch/bonus goal could be to make the necessary changes to
QEMU to actually make use of libblkio's zoned device support.

>    '''Links:'''
>    * https://zonedstorage.io/
>    * https://libblkio.gitlab.io/libblkio/
>    * https://gitlab.com/libblkio/libblkio/-/issues/44
>
>    '''Details:'''
>    * Project size: 175 hours
>    * Skill level: intermediate
>    * Language: Rust, C
>    * Mentor: Alberto Faria <afaria@xxxxxxxxxx>, Stefan Hajnoczi
> <stefanha@xxxxxxxxx>
>    * Suggested by: Alberto Faria <afaria@xxxxxxxxxx>
>
> Alberto




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