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Ip=[192.88.158.2]; Helo=[az84smr01.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR0301MB0752 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: madalin.bucur@nxp.com Cc: pebolle@tiscali.nl, linux-kernel@vger.kernel.org, ppc@mindchasers.com, oss@buserror.net, joe@perches.com, linuxppc-dev@lists.ozlabs.org, davem@davemloft.net Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add trace points on the hot processing path. Signed-off-by: Ruxandra Ioana Radulescu --- drivers/net/ethernet/freescale/dpaa/Makefile | 1 + drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 15 +++ drivers/net/ethernet/freescale/dpaa/dpaa_eth.h | 1 + .../net/ethernet/freescale/dpaa/dpaa_eth_trace.h | 141 +++++++++++++++++++++ 4 files changed, 158 insertions(+) create mode 100644 drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h diff --git a/drivers/net/ethernet/freescale/dpaa/Makefile b/drivers/net/ethernet/freescale/dpaa/Makefile index bfb03d4..7db50bc 100644 --- a/drivers/net/ethernet/freescale/dpaa/Makefile +++ b/drivers/net/ethernet/freescale/dpaa/Makefile @@ -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) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index 3a610fd..375c392 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -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 + */ +#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)"); @@ -1868,6 +1874,9 @@ 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) @@ -2102,6 +2111,9 @@ 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; @@ -2199,6 +2211,9 @@ 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)) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h index 44323e2..1f9aebf 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.h @@ -37,6 +37,7 @@ #include "fman.h" #include "mac.h" +#include "dpaa_eth_trace.h" #define DPAA_ETH_TXQ_NUM NR_CPUS diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h new file mode 100644 index 0000000..409c1dc --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h @@ -0,0 +1,141 @@ +/* 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 +#include +#include "dpaa_eth.h" +#include + +#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