dpaa_eth: add trace points (eb11ddf3) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/ethernet/freescale/dpaa/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -9,3 +9,4 @@ ccflags-y += -I$(FMAN)
		obj-$(CONFIG_FSL_DPAA_ETH) += fsl_dpa.o

		fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o dpaa_eth_sysfs.o
		CFLAGS_dpaa_eth.o := -I$(src)

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -59,6 +59,12 @@
		#include "mac.h"
		#include "dpaa_eth.h"

		/* CREATE_TRACE_POINTS only needs to be defined once. Other dpaa files
		* using trace events only need to #include <trace/events/sched.h>
		*/
		#define CREATE_TRACE_POINTS
		#include "dpaa_eth_trace.h"

		static int debug = -1;
		module_param(debug, int, 0444);
		MODULE_PARM_DESC(debug, "Module/Driver verbosity level (0=none,...,16=all)");
		@@ -1863,6 +1869,9 @@ static inline int dpaa_xmit(struct dpaa_priv *priv,
		if (fd->bpid == FSL_DPAA_BPID_INV)
		fd->cmd \|= qman_fq_fqid(priv->conf_fqs[queue]);

		/* Trace this Tx fd */
		trace_dpaa_tx_fd(priv->net_dev, egress_fq, fd);

		for (i = 0; i < DPAA_ENQUEUE_RETRIES; i++) {
		err = qman_enqueue(egress_fq, fd);
		if (err != -EBUSY)
		@@ -2097,6 +2106,9 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
		if (!dpaa_bp)
		return qman_cb_dqrr_consume;

		/* Trace the Rx fd */
		trace_dpaa_rx_fd(net_dev, fq, &dq->fd);

		percpu_priv = this_cpu_ptr(priv->percpu_priv);
		percpu_stats = &percpu_priv->stats;

		@@ -2194,6 +2206,9 @@ static enum qman_cb_dqrr_result conf_dflt_dqrr(struct qman_portal *portal,
		net_dev = ((struct dpaa_fq *)fq)->net_dev;
		priv = netdev_priv(net_dev);

		/* Trace the fd */
		trace_dpaa_tx_conf_fd(net_dev, fq, &dq->fd);

		percpu_priv = this_cpu_ptr(priv->percpu_priv);

		if (dpaa_eth_napi_schedule(percpu_priv, portal))

drivers/net/ethernet/freescale/dpaa/dpaa_eth.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@

		#include "fman.h"
		#include "mac.h"
		#include "dpaa_eth_trace.h"

		#define DPAA_ETH_TXQ_NUM NR_CPUS

drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h

0 → 100644

+141 −0

Original line number	Diff line number	Diff line
		/* Copyright 2013-2015 Freescale Semiconductor Inc.
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions are met:
		* * Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* * Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in the
		* documentation and/or other materials provided with the distribution.
		* * Neither the name of Freescale Semiconductor nor the
		* names of its contributors may be used to endorse or promote products
		* derived from this software without specific prior written permission.
		*
		*
		* ALTERNATIVELY, this software may be distributed under the terms of the
		* GNU General Public License ("GPL") as published by the Free Software
		* Foundation, either version 2 of that License or (at your option) any
		* later version.
		*
		* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
		* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
		* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
		* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
		* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
		* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
		* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
		* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*/

		#undef TRACE_SYSTEM
		#define TRACE_SYSTEM dpaa_eth

		#if !defined(_DPAA_ETH_TRACE_H) \|\| defined(TRACE_HEADER_MULTI_READ)
		#define _DPAA_ETH_TRACE_H

		#include <linux/skbuff.h>
		#include <linux/netdevice.h>
		#include "dpaa_eth.h"
		#include <linux/tracepoint.h>

		#define fd_format_name(format) { qm_fd_##format, #format }
		#define fd_format_list \
		fd_format_name(contig), \
		fd_format_name(sg)

		/* This is used to declare a class of events.
		* individual events of this type will be defined below.
		*/

		/* Store details about a frame descriptor and the FQ on which it was
		* transmitted/received.
		*/
		DECLARE_EVENT_CLASS(dpaa_eth_fd,
		/* Trace function prototype */
		TP_PROTO(struct net_device *netdev,
		struct qman_fq *fq,
		const struct qm_fd *fd),

		/* Repeat argument list here */
		TP_ARGS(netdev, fq, fd),

		/* A structure containing the relevant information we want to record.
		* Declare name and type for each normal element, name, type and size
		* for arrays. Use __string for variable length strings.
		*/
		TP_STRUCT__entry(
		__field(u32, fqid)
		__field(u64, fd_addr)
		__field(u8, fd_format)
		__field(u16, fd_offset)
		__field(u32, fd_length)
		__field(u32, fd_status)
		__string(name, netdev->name)
		),

		/* The function that assigns values to the above declared fields */
		TP_fast_assign(
		__entry->fqid = fq->fqid;
		__entry->fd_addr = qm_fd_addr_get64(fd);
		__entry->fd_format = qm_fd_get_format(fd);
		__entry->fd_offset = qm_fd_get_offset(fd);
		__entry->fd_length = qm_fd_get_length(fd);
		__entry->fd_status = fd->status;
		__assign_str(name, netdev->name);
		),

		/* This is what gets printed when the trace event is triggered */
		TP_printk("[%s] fqid=%d, fd: addr=0x%llx, format=%s, off=%u, len=%u, status=0x%08x",
		__get_str(name), __entry->fqid, __entry->fd_addr,
		__print_symbolic(__entry->fd_format, fd_format_list),
		__entry->fd_offset, __entry->fd_length, __entry->fd_status)
		);

		/* Now declare events of the above type. Format is:
		* DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
		*/

		/* Tx (egress) fd */
		DEFINE_EVENT(dpaa_eth_fd, dpaa_tx_fd,

		TP_PROTO(struct net_device *netdev,
		struct qman_fq *fq,
		const struct qm_fd *fd),

		TP_ARGS(netdev, fq, fd)
		);

		/* Rx fd */
		DEFINE_EVENT(dpaa_eth_fd, dpaa_rx_fd,

		TP_PROTO(struct net_device *netdev,
		struct qman_fq *fq,
		const struct qm_fd *fd),

		TP_ARGS(netdev, fq, fd)
		);

		/* Tx confirmation fd */
		DEFINE_EVENT(dpaa_eth_fd, dpaa_tx_conf_fd,

		TP_PROTO(struct net_device *netdev,
		struct qman_fq *fq,
		const struct qm_fd *fd),

		TP_ARGS(netdev, fq, fd)
		);

		/* If only one event of a certain type needs to be declared, use TRACE_EVENT().
		* The syntax is the same as for DECLARE_EVENT_CLASS().
		*/

		#endif /* _DPAA_ETH_TRACE_H */

		/* This must be outside ifdef _DPAA_ETH_TRACE_H */
		#undef TRACE_INCLUDE_PATH
		#define TRACE_INCLUDE_PATH .
		#undef TRACE_INCLUDE_FILE
		#define TRACE_INCLUDE_FILE dpaa_eth_trace
		#include <trace/define_trace.h>