From: eagostini <eagost...@nvidia.com> In heterogeneous computing system, processing is not only in the CPU. Some tasks can be delegated to devices working in parallel.
The goal of this new library is to enhance the collaboration between DPDK, that's primarily a CPU framework, and GPU devices. When mixing network activity with task processing on a non-CPU device, there may be the need to put in communication the CPU with the device in order to manage the memory, synchronize operations, exchange info, etc.. This library provides a number of new features: - Interoperability with GPU-specific library with generic handlers - Possibility to allocate and free memory on the GPU - Possibility to allocate and free memory on the CPU but visible from the GPU - Communication functions to enhance the dialog between the CPU and the GPU The infrastructure is prepared to welcome drivers in drivers/gpu/ as the CUDA one, sent as draft: https://patches.dpdk.org/project/dpdk/patch/20211005224905.13505-1-eagost...@nvidia.com/ Elena Agostini (6): gpudev: introduce GPU device class library gpudev: add memory API gpudev: add memory barrier gpudev: add communication flag gpudev: add communication list doc: add CUDA example in GPU guide Thomas Monjalon (3): gpudev: add event notification gpudev: add child device representing a device context gpudev: support multi-process .gitignore | 1 + MAINTAINERS | 6 + app/meson.build | 1 + app/test-gpudev/main.c | 394 +++++++++++ app/test-gpudev/meson.build | 5 + doc/api/doxy-api-index.md | 1 + doc/api/doxy-api.conf.in | 1 + doc/guides/conf.py | 8 + doc/guides/gpus/features/default.ini | 13 + doc/guides/gpus/index.rst | 11 + doc/guides/gpus/overview.rst | 10 + doc/guides/index.rst | 1 + doc/guides/prog_guide/gpudev.rst | 226 +++++++ doc/guides/prog_guide/index.rst | 1 + doc/guides/rel_notes/release_21_11.rst | 6 + drivers/gpu/meson.build | 4 + drivers/meson.build | 1 + lib/gpudev/gpudev.c | 904 +++++++++++++++++++++++++ lib/gpudev/gpudev_driver.h | 102 +++ lib/gpudev/meson.build | 12 + lib/gpudev/rte_gpudev.h | 649 ++++++++++++++++++ lib/gpudev/version.map | 38 ++ lib/meson.build | 1 + 23 files changed, 2396 insertions(+) create mode 100644 app/test-gpudev/main.c create mode 100644 app/test-gpudev/meson.build create mode 100644 doc/guides/gpus/features/default.ini create mode 100644 doc/guides/gpus/index.rst create mode 100644 doc/guides/gpus/overview.rst create mode 100644 doc/guides/prog_guide/gpudev.rst create mode 100644 drivers/gpu/meson.build create mode 100644 lib/gpudev/gpudev.c create mode 100644 lib/gpudev/gpudev_driver.h create mode 100644 lib/gpudev/meson.build create mode 100644 lib/gpudev/rte_gpudev.h create mode 100644 lib/gpudev/version.map -- 2.17.1
