mbox series

[RDMA,for-next,v2,0/6] Add MAD stack trace points

Message ID 1545272565-29493-1-git-send-email-ira.weiny@intel.com (mailing list archive)
Headers show
Series Add MAD stack trace points | expand

Message

Ira Weiny Dec. 20, 2018, 2:22 a.m. UTC 
From: Ira Weiny <ira.weiny@intel.com>

Changes for v2:
	Update MAINTAINERS as indicated from Doug
	Now CC'ing the Tracing maintainers so they are aware of the additions

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

 MAINTAINERS                        |   4 +
 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 ++++++++++++
 8 files changed, 882 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