[PATCH 3/3] nvme: Allow reauth from sysfs

[Alistair Francis]

On Mon, Nov 3, 2025 at 12:05 PM Chaitanya Kulkarni
<chaitanyak at nvidia.com> wrote:
>
> On 11/2/25 5:47 PM, Alistair Francis wrote:
> > On Sat, Nov 1, 2025 at 12:05 AM Christoph Hellwig<hch at lst.de> wrote:
> >> On Thu, Oct 30, 2025 at 01:51:14PM +1000,alistair23 at gmail.com wrote:
> >>> From: Alistair Francis<alistair.francis at wdc.com>
> >>>
> >>> Allow userspace to trigger a reauth (REPLACETLSPSK) from sysfs.
> >>> This can be done by writing the queue ID to te sysfs file.
> >>>
> >>> echo 0 > /sys/devices/virtual/nvme-fabrics/ctl/nvme0/replace_psk
> >>>
> >>> Note that only QID 0 (admin queue) is supported.
> >> Why pass the queue ID then instead of a boolean value?
> > I liked the explicitness of passing a queue ID instead of a bool and
> > it allows supporting more queues in the future if that changes in the
> > spec.
> >
> > I can change it to a bool instead if that's preferred?
> >
> > Alistair
>
> do you have any plans to add support for the I/O queues in future ?

No, it would require a spec change

> OR
> have a strong usecase for I/O queues to support this feature ?

I do not, but it does seem like something that maybe should be supported

Alistair

>
> -ck
>