1*ed6a9f7dSAlistair FrancisWhat: /sys/devices/virtual/nvme-fabrics/ctl/.../tls_configured_key 2*ed6a9f7dSAlistair FrancisDate: November 2025 3*ed6a9f7dSAlistair FrancisKernelVersion: 6.19 4*ed6a9f7dSAlistair FrancisContact: Linux NVMe mailing list <linux-nvme@lists.infradead.org> 5*ed6a9f7dSAlistair FrancisDescription: 6*ed6a9f7dSAlistair Francis The file is avaliable when using a secure concatanation 7*ed6a9f7dSAlistair Francis connection to a NVMe target. Reading the file will return 8*ed6a9f7dSAlistair Francis the serial of the currently negotiated key. 9*ed6a9f7dSAlistair Francis 10*ed6a9f7dSAlistair Francis Writing 0 to the file will trigger a PSK reauthentication 11*ed6a9f7dSAlistair Francis (REPLACETLSPSK) with the target. After a reauthentication 12*ed6a9f7dSAlistair Francis the value returned by tls_configured_key will be the new 13*ed6a9f7dSAlistair Francis serial. 14