)]}'
{
  "commit": "d4dd1876008dfd39fa0548077398e44ef064f298",
  "tree": "eeebd233f46447c4de7560632539f35a46fb2413",
  "parents": [
    "6e9643ea97d1f312223801b07c19c0a16615eeb4"
  ],
  "author": {
    "name": "Nathan Scott",
    "email": "nathans@redhat.com",
    "time": "Thu Nov 13 15:41:43 2025 +1100"
  },
  "committer": {
    "name": "Nathan Scott",
    "email": "nathans@redhat.com",
    "time": "Tue Feb 03 10:31:59 2026 +1100"
  },
  "message": "providers: add support for USDT tracing using libbpf/usdt\n\nProvide lightweight USDT tracing as an alternative to LTTng.\nThis piggybacks on the existing tracing code added for LTTng\nfor a minimal set of changes.\n\nThe cmake build configuration is updated to allow either one\nof -DTRACING\u003dLTTNG or -DTRACING\u003dUSDT for this functionality\n(by default tracing is disabled, as before).\n\n\u003e $ sudo bpftrace -l usdt:build/lib/lib*.so:*\n\u003e usdt:build/lib/libefa-rdmav59.so:rdma_core_efa:post_recv\n\u003e usdt:build/lib/libefa-rdmav59.so:rdma_core_efa:post_send\n\u003e usdt:build/lib/libefa-rdmav59.so:rdma_core_efa:process_completion\n\u003e usdt:build/lib/libefa.so:rdma_core_efa:post_recv\n\u003e usdt:build/lib/libefa.so:rdma_core_efa:post_send\n\u003e usdt:build/lib/libefa.so:rdma_core_efa:process_completion\n\u003e usdt:build/lib/libhns-rdmav59.so:rdma_core_hns:poll_cq\n\u003e usdt:build/lib/libhns-rdmav59.so:rdma_core_hns:post_recv\n\u003e usdt:build/lib/libhns-rdmav59.so:rdma_core_hns:post_send\n\u003e usdt:build/lib/libhns.so:rdma_core_hns:poll_cq\n\u003e usdt:build/lib/libhns.so:rdma_core_hns:post_recv\n\u003e usdt:build/lib/libhns.so:rdma_core_hns:post_send\n\u003e usdt:build/lib/libmlx5-rdmav59.so:rdma_core_mlx5:post_send\n\u003e usdt:build/lib/libmlx5.so:rdma_core_mlx5:post_send\n\u003e usdt:build/lib/librxe-rdmav59.so:rdma_core_rxe:post_send\n\nThe USDT header used here is from the libbpf/usdt project at\nhttps://github.com/libbpf/usdt.git\n\nFurther background discussion for this commit is included in\nhttps://github.com/linux-rdma/rdma-core/pull/1621\n\nSigned-off-by: Nathan Scott \u003cnathans@redhat.com\u003e\n",
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