Initial Linux kernel driver patches for the Smart Data Accelerator Interface (SDXI) have been posted to the Linux kernel mailing list by AMD engineer Nathan Lynch. SDXI is a vendor-neutral architecture for memory-to-memory data movement offload, enabling direct user-mode access to hardware accelerators without CPU intervention and supporting virtualized environments. The driver covers the v1.0(a) spec basics, with future work planned for user-space exposure via character device, operation type support, and greater configurability. The spec has been developed collaboratively by HPE, AMD, Microsoft, and others.
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