What should we do about the nvme atomics mess?

Christoph Hellwig hch at lst.de
Tue Jul 8 02:48:25 PDT 2025


On Tue, Jul 08, 2025 at 11:38:09AM +0200, Niklas Cassel wrote:
> But NVMe should probably push to deprecate AUWPF, and introduce a new field
> that is like AUWPF but which is specified in a fixed unit, e.g. bytes or
> CAP.MPSMIN. (I'm thinking of e.g. Zone Append Size Limit (ZASL) which is also
> a per controller limit, but the value is specified in units of CAP.MPSMIN,
> just like the Maximum Data Transfer Size (MDTS).)

There's not advantage in having yet another field vs mandating NAWUPF.




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