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X-CRM114-Status: GOOD ( 16.36 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 20/08/2025 22:51, Keith Busch wrote: > On Wed, Aug 20, 2025 at 03:02:20PM +0000, John Garry wrote: >> It would be preferred to stop honouring AWUPF altogether, but this may >> needlessly disable atomic write support for many "good" devices which >> only specify AWUPF. Currently all validation of controller-related >> atomics limits is dropped. > > These "good" devices that only report AWUPF, is there some set of > characteristics that generally applies to all of them? I tried to list > out conditions for when I think the value could be counted on here: > > https://lore.kernel.org/linux-nvme/aGvuRS8VmC0JXAR3@kbusch-mbp/ > > I just don't know if you know of any devices where that criteria doesn't > git. If not, maybe we can work with that without introducing more user > knobs. About the rules, 1. CMIC == 0; and 2. OACS.NMS == 0; and 3. a. FNA.FNS == 1; or b. NN == 1 I have access to two controllers and they both set OACS.NMS and neither set FNA.FNS. I wonder how common these rules would pass to be useful. Then having 1x namespace is quite limiting also. Thanks, John