From: Ira Weiny <ira.weiny@xxxxxxxxx>
I've been pretty busy with some personal issues but I finally got some time to
rework a V4 of this series.
V4 converts dev_name to dev_index to ensure traces are consistently tagged with
the same "device identifier".
I believe with this change I have addressed all the comments.
Again we are leaving the snoop interface in and there is a sample eBPF which
shows how one can further filter at the tracepoints to distill the information
being traced.
Changes for V4:
Change dev_name to dev_index
Changes for V3:
Rebased on current RDMA for next
Change license text to SPDX tag
Change dev_name to string from array
Reorder fields for more compact ring buffer utilization
Use a defined roce address type for safer memcpy/memset
Adjust BPF to new umad format
Changes for v2:
Update MAINTAINERS as indicated from Doug
Now CC'ing the Tracing maintainers so they are aware of the additions
[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
MAINTAINERS | 4 +
drivers/infiniband/core/mad.c | 95 +++++++-
drivers/infiniband/core/user_mad.c | 7 +
include/trace/events/ib_mad.h | 362 +++++++++++++++++++++++++++++
include/trace/events/ib_umad.h | 112 +++++++++
samples/bpf/Makefile | 3 +
samples/bpf/ibumad_kern.c | 123 ++++++++++
samples/bpf/ibumad_user.c | 120 ++++++++++
8 files changed, 825 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
--
2.20.1
