[LSF/MM/BPF ATTEND][LSF/MM/BPF Topic] Non-block IO

[Clay Mayers]

> From Kanchan Joshi
> Sent: Friday, February 10, 2023 10:01 AM
> To: lsf-pc at lists.linux-foundation.org
> Cc: linux-block at vger.kernel.org; linux-nvme at lists.infradead.org; io-
> uring at vger.kernel.org; axboe at kernel.dk; hch at lst.de; kbusch at kernel.org;
> ming.lei at redhat.com; Kanchan Joshi <joshi.k at samsung.com>
> Subject: [LSF/MM/BPF ATTEND][LSF/MM/BPF Topic] Non-block IO
> 
> is getting more common than it used to be.
> NVMe is no longer tied to block storage. Command sets in NVMe 2.0 spec
> opened an excellent way to present non-block interfaces to the Host. ZNS
> and KV came along with it, and some new command sets are emerging.

Some command sets require features of NVMe the kernel doesn't support;
fused and some AENs for example.  It would be very useful to work with
non-block command sets w/o modifying the NVMe driver, having a custom
NVMe driver per command set or resorting to using spdk.