kernel/linux.git/drivers/infiniband/core/cm_trace.h, branch v6.2

trace: Relocate event helper files

2022-12-10T16:01:12+00:00

Steven Rostedt says: > The include/trace/events/ directory should only hold files that > are to create events, not headers that hold helper functions. > > Can you please move them out of include/trace/events/ as that > directory is "special" in the creation of events. Signed-off-by: Chuck Lever Acked-by: Leon Romanovsky Acked-by: Steven Rostedt (Google) Acked-by: Anna Schumaker

RDMA/cm: Add tracepoints to track MAD send operations

2020-08-24T22:41:41+00:00

Surface the operation of MAD exchanges during connection establishment. Some samples: [root@klimt ~]# trace-cmd report -F ib_cma cpus=4 kworker/0:4-123 [000] 60.677388: icm_send_rep: local_id=1965336542 remote_id=1096195961 state=REQ_RCVD lap_state=LAP_UNINIT kworker/u8:11-391 [002] 60.678808: icm_send_req: local_id=1982113758 remote_id=0 state=IDLE lap_state=LAP_UNINIT kworker/0:4-123 [000] 60.679652: icm_send_rtu: local_id=1982113758 remote_id=1079418745 state=REP_RCVD lap_state=LAP_UNINIT nfsd-1954 [001] 60.691350: icm_send_rep: local_id=1998890974 remote_id=1129750393 state=MRA_REQ_SENT lap_state=LAP_UNINIT nfsd-1954 [003] 62.017931: icm_send_drep: local_id=1998890974 remote_id=1129750393 state=TIMEWAIT lap_state=LAP_UNINIT Link: https://lore.kernel.org/r/159767240197.2968.12048458026453596018.stgit@klimt.1015granger.net Signed-off-by: Chuck Lever Signed-off-by: Jason Gunthorpe

RDMA/cm: Replace pr_debug() call sites with tracepoints

2020-08-24T22:41:41+00:00

In the interest of converging on a common instrumentation infrastructure, modernize the pr_debug() call sites added by commit 119bf81793ea ("IB/cm: Add debug prints to ib_cm"). The new tracepoints appear in a new "ib_cma" subsystem. The conversion is somewhat mechanical. Someone more familiar with the semantics of the recorded information might suggest additional data capture. Some benefits include: - Tracepoints enable "always on" reporting of these errors - The error records are structured and compact - Tracepoints provide hooks for eBPF scripts Sample output: nfsd-1954 [003] 62.017901: icm_dreq_skipped: local_id=1998890974 remote_id=1129750393 state=DREQ_RCVD lap_state=LAP_UNINIT Link: https://lore.kernel.org/r/159767239665.2968.10613294222688696646.stgit@klimt.1015granger.net Signed-off-by: Chuck Lever Signed-off-by: Jason Gunthorpe