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([240b:10:2720:5500:288:a197:7cfc:5ec5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82f8e9d2f9asm22185694b3a.19.2026.04.23.10.51.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Apr 2026 10:51:50 -0700 (PDT) Message-ID: <7af729f6-25e7-483a-9a5e-770d6c6e6805@gmail.com> Date: Fri, 24 Apr 2026 02:51:48 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] nvme: initialize known effects to set ns_mgmt NCC and ns_attach NIC To: Christoph Hellwig Cc: linux-nvme@lists.infradead.org References: <20260422141159.10881-1-ikegami.t@gmail.com> <20260422141159.10881-3-ikegami.t@gmail.com> Content-Language: en-US From: Tokunori Ikegami In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260423_105152_201374_8173D452 X-CRM114-Status: GOOD ( 14.25 ) 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 2026/04/23 14:57, Christoph Hellwig wrote: > Can you explain the rational a little better here? Do you have a > device that does not have these entries? And what problems does that > cause for you for which workload? The change is just an idea to improvement the scan_work to make sure as always do scan for the ns_mgmt and ns_attach commands. Actually I do not have the device as I have only a drive these entries as NCC for ns_mgmt and NIC for ns_attach. (Another drive I have but does not support both ns_attach and ns_mgmt then does not have these entries. Also third drive broken then I can not confirm it for now.) All drives supporting ns_mgmt and ns_attach should have the entries but I do not think the driver side not needed to be depended on it as always do scan. I tried to fix the issue below with the changes at first but the issue was caused by the test script then currently resolved already.   So no need this change for now for the issue but in future still I think we can reduce related issue or its investigation by the change.