This is the user space counter-part of the kernel patch set to add dma-buf support to the RDMA subsystem. This patch series adds user space API for registering dma-buf based memory regions, updates pyverbs with the new API, and adds new tests.
This series consists of five patches. The first patch adds the new API function and updates the man pages. Patch 2 implements the new API in the mlx5 provider. Patch 3 adds new class definitions to pyverbs for the new API. Patch 4 adds new tests for the new API. Patch 5 fixes bug in the utility code of the tests.
Jianxin Xiong (5): verbs: Support dma-buf based memory region mlx5: Support dma-buf based memory region pyverbs: Add dma-buf based MR support tests: Add tests for dma-buf based memory regions tests: Bug fix for get_access_flags()
kernel-headers/rdma/ib_user_ioctl_cmds.h | 14 ++++ libibverbs/cmd_mr.c | 38 +++++++++ libibverbs/driver.h | 7 ++ libibverbs/dummy_ops.c | 11 +++ libibverbs/libibverbs.map.in | 6 ++ libibverbs/man/ibv_reg_mr.3 | 21 ++++- libibverbs/verbs.c | 19 +++++ libibverbs/verbs.h | 10 +++ providers/mlx5/mlx5.c | 2 + providers/mlx5/mlx5.h | 3 + providers/mlx5/verbs.c | 23 ++++++ pyverbs/CMakeLists.txt | 2 + pyverbs/dmabuf.pxd | 13 ++++ pyverbs/dmabuf.pyx | 58 ++++++++++++++ pyverbs/libibverbs.pxd | 2 + pyverbs/mr.pxd | 5 ++ pyverbs/mr.pyx | 77 +++++++++++++++++- tests/test_mr.py | 130 ++++++++++++++++++++++++++++++- tests/utils.py | 31 +++++++- 19 files changed, 464 insertions(+), 8 deletions(-) create mode 100644 pyverbs/dmabuf.pxd create mode 100644 pyverbs/dmabuf.pyx