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CONFIG_OCXL: OpenCAPI coherent accelerator support

General informations

The Linux kernel configuration item CONFIG_OCXL:

Help text

Select this option to enable the ocxl driver for Open Coherent Accelerator Processor Interface (OpenCAPI) devices.

OpenCAPI allows FPGA and ASIC accelerators to be coherently attached to a CPU over an OpenCAPI link.

The ocxl driver enables userspace programs to access these accelerators through devices in /dev/ocxl/.

For more information, see http://opencapi.org.

This is not to be confused with the support for IBM CAPI accelerators (CXL), which are PCI-based instead of a dedicated OpenCAPI link, and don't follow the same protocol.

If unsure, say N.

Hardware

PCI

Numeric ID (from LKDDb) and names (from pci.ids) of recognized devices:

LKDDb

Raw data from LKDDb:

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Automatically generated (in year 2019). See also LKDDb sources on GitLab