Abstract: A network interface device includes a port with protocol circuitry to couple to a host device by a link compliant with a Compute Express Link (CXL) protocol. The network interface device further includes a memory and logic to support emulation of a file system by the host device of at least a portion of the memory, where the link is used for direct memory accesses for requests or responses associated with the emulation of the file system.

Abstract: Methods and apparatus for hot upgrade or live recovery of storage backend software on an IPU (Infrastructure Processing Unit) or DPU (Date Processing Unit). Configuration space and queue related information associated with Input-Output (IO) operations for storage device(s) operatively coupled to the IPU/DPU are saved in shared memory. Following the hot upgrade or live recovery, the configuration space and queue related information are restored and IO operations are restarted at a last completed point prior to initiation of the hot upgrade or live recovery. Additionally, the newly started backend software is reassociated with a front-end host driver. The storage backend software may include instructions for executing primary and secondary processes using a multi-process model such as a Storage Performance Development Kit (SPDK) multi-process model.