OpenCAPI standard will be incorporated into the CXL design specification
The OpenCAPI standard, which was supported by AMD, Xilinx, and IBM in the past, announced earlier that it will merge with the current mainstream CXL (Compute Express Link) standard. In the future, all OpenCAPI standards and assets will be merged into CXL (Compute Express Link) within the standard specification.
The OpenCAPI standard is derived from IBM’s existing accelerator component and CPU communication protocol CAPI. As the overall usage rate is not high, AMD, which originally supported this standard, turned to its own Infinity Fabric protocol to allow the CPU to communicate directly with the GPU used as an accelerator. At the same time, Xilinx is also currently incorporated into the AMD system, so the OpenCAPI Alliance announced that it will incorporate its standard-setting and other assets into the CXL protocol.