linux/drivers/infiniband/core/cm_trace.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Trace points for the IB Connection Manager.
 *
 * Author: Chuck Lever <chuck.lever@oracle.com>
 *
 * Copyright (c) 2020, Oracle and/or its affiliates.
 */

#include <rdma/rdma_cm.h>
#include "cma_priv.h"

#define CREATE_TRACE_POINTS

#include "cm_trace.h"
RDMA/cm: Replace pr_debug() call sites with tracepoints 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 <chuck.lever@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> 2020-08-17 21:53:16 +08:00			`// SPDX-License-Identifier: GPL-2.0-only`
			`/*`
			`* Trace points for the IB Connection Manager.`
			`*`
			`* Author: Chuck Lever <chuck.lever@oracle.com>`
			`*`
			`* Copyright (c) 2020, Oracle and/or its affiliates.`
			`*/`

			`#include <rdma/rdma_cm.h>`
			`#include "cma_priv.h"`

			`#define CREATE_TRACE_POINTS`

			`#include "cm_trace.h"`