[PATCH 1/1] nvme-fabrics: don't check ioccsz/iorcsz for discovery

[Caleb Sander]

On Thu, Dec 21, 2023 at 4:02 AM Sagi Grimberg <sagi at grimberg.me> wrote:
>
>
> > Why? As Max points out, the base NVMe spec says those fields are
> > reserved for discovery controllers.
>
> Oh, didn't understand that it was already the case, I thought
> that the intention was to made it as such. Can you point us
> to this part in the spec?

https://nvmexpress.org/wp-content/uploads/NVM-Express-Base-Specification-2.0c-2022.10.04-Ratified.pdf
Figure 275: Identify – Identify Controller Data Structure, I/O Command
Set Independent
Both fields IOCCSZ and IORCSZ have "R" in the "Disc" column,
indicating that they are reserved for discovery controllers.