forked from Minki/linux
75874b3d50
In the interest of converging on a common instrumentation infrastructure,
modernize the pr_debug() call sites added by commit 119bf81793 ("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 <chuck.lever@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
16 lines
303 B
C
16 lines
303 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Trace points for the IB Connection Manager.
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*
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* Author: Chuck Lever <chuck.lever@oracle.com>
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*
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* Copyright (c) 2020, Oracle and/or its affiliates.
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*/
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#include <rdma/rdma_cm.h>
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#include "cma_priv.h"
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#define CREATE_TRACE_POINTS
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#include "cm_trace.h"
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