From: Ira Weiny <ira.weiny@xxxxxxxxx> A while ago I wrote these patches for MAD stack tracing. At the time I was proposing to remove the snoop interface.[1] For this submission I'd like to propose adding the tracing and leave the snoop interface in. While I still don't see a need for the snoop interface, I'm no longer advocating getting rid of it as the functionality of these patches is different. In addition I wrote a sample eBPF which shows how one can further filter at the tracepoints to distill the information being traced. I don't know if this should be submitted through another tree or if it is ok to take though linux-rdma? Ira [1] https://www.spinics.net/lists/linux-rdma/msg29109.html Ira Weiny (6): IB/MAD: Add send path trace points IB/MAD: Add recv path trace point IB/MAD: Add agent trace points IB/UMAD: Add umad trace points IB/MAD: Add SMP details to MAD tracing BPF: Add sample code for new ib_umad tracepoint drivers/infiniband/core/mad.c | 95 ++++++++- drivers/infiniband/core/user_mad.c | 7 + include/trace/events/ib_mad.h | 391 +++++++++++++++++++++++++++++++++++++ include/trace/events/ib_umad.h | 140 +++++++++++++ samples/bpf/Makefile | 3 + samples/bpf/ibumad_kern.c | 123 ++++++++++++ samples/bpf/ibumad_user.c | 120 ++++++++++++ 7 files changed, 878 insertions(+), 1 deletion(-) create mode 100644 include/trace/events/ib_mad.h create mode 100644 include/trace/events/ib_umad.h create mode 100644 samples/bpf/ibumad_kern.c create mode 100644 samples/bpf/ibumad_user.c -- 1.8.3.1
