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AJvYcCW/IzzHGIH4Qcq7jkh33qjwfeIP0/yFhsou60uZfq5ZRBuhyazW5c89DN2bLsPzVPPHq/X3g9N3HGqLkSo=@vger.kernel.org X-Gm-Message-State: AOJu0Yz0jx26cRwxF7NWZ0plzMbxIeJh2Nt3FG+mizmckNLy1OkCOZ6V 2PfmADYmpwod7Ztiv2oAuFCViITrBN6EFQHRESMvievqtnEYyV1zSxJTlCmeTXi/Xw0+qJaUz3t YOFp4g6U5Icaz5EBYuiYYgMov+zXHFovodZJ3DFzBAA== X-Gm-Gg: AZuq6aJ2XS03TG24HdrjZjeGFplmKd8DMyf6AFM5TQfdA5GI6EiJJzqec6sAXN4gM6y T2wMWnYS+KespO2K7MN3kCFxXaPtaoyYrypFSxW49qaSPP1YDSoXQTjetWHztIb7R5mbyB91lur pkJdfgS8F2md61f8Eq2ORGjPZdyima4+T/K3JevUoHBfafG5tJ/58ef3uv13SOqu/2hy5/flXXk xV7tnDFz7rDlfD3xs5AXbFFaIDF7mnmhxQ1pGN21xMEPdh2VWhw8e60n1WrT/dAcL9E+yAILIv+ CB2uSV8= X-Received: by 2002:a05:6102:cc8:b0:5ef:7221:aa9b with SMTP id ada2fe7eead31-5fae8aab91bmr4623011137.18.1770775009419; Tue, 10 Feb 2026 17:56:49 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20260130223531.2478849-1-mkhalfella@purestorage.com> <20260130223531.2478849-7-mkhalfella@purestorage.com> In-Reply-To: <20260130223531.2478849-7-mkhalfella@purestorage.com> From: Randy Jennings Date: Tue, 10 Feb 2026 17:56:38 -0800 X-Gm-Features: AZwV_QgcNBZ3z-Vegt9TPNWyZplvjx3Vh6wfL9VrS_A7X9vCt3rK9ZXNro5CBxk Message-ID: Subject: Re: [PATCH v2 06/14] nvme: Rapid Path Failure Recovery read controller identify fields To: Mohamed Khalfella Cc: Justin Tee , Naresh Gottumukkala , Paul Ely , Chaitanya Kulkarni , Christoph Hellwig , Jens Axboe , Keith Busch , Sagi Grimberg , Aaron Dailey , Dhaval Giani , Hannes Reinecke , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Jan 30, 2026 at 2:36=E2=80=AFPM Mohamed Khalfella wrote: > > TP8028 Rapid path failure added new fileds to controller identify > response. Read CIU (Controller Instance Uniquifier), CIRN (Controller > Instance Random Number), and CCRL (Cross-Controller Reset Limit) from > controller identify response. Expose CIU and CIRN as sysfs attributes > so the values can be used directrly by user if needed. > > TP4129 KATO Corrections and Clarifications defined CQT (Command Quiesce > Time) which is used along with KATO (Keep Alive Timeout) to set an upper > limit for attempting Cross-Controller Recovery. > > Signed-off-by: Mohamed Khalfella Reviewed-by: Randy Jennings