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

   1 /* Copyright 2013-2015 Freescale Semiconductor Inc.
   2  *
   3  * Redistribution and use in source and binary forms, with or without
   4  * modification, are permitted provided that the following conditions are met:
   5  *     * Redistributions of source code must retain the above copyright
   6  *       notice, this list of conditions and the following disclaimer.
   7  *     * Redistributions in binary form must reproduce the above copyright
   8  *       notice, this list of conditions and the following disclaimer in the
   9  *       documentation and/or other materials provided with the distribution.
  10  *     * Neither the name of Freescale Semiconductor nor the
  11  *       names of its contributors may be used to endorse or promote products
  12  *       derived from this software without specific prior written permission.
  13  *
  14  *
  15  * ALTERNATIVELY, this software may be distributed under the terms of the
  16  * GNU General Public License ("GPL") as published by the Free Software
  17  * Foundation, either version 2 of that License or (at your option) any
  18  * later version.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
  21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  23  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
  24  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  25  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #undef TRACE_SYSTEM
  33 #define TRACE_SYSTEM    dpaa_eth
  34
  35 #if !defined(_DPAA_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  36 #define _DPAA_ETH_TRACE_H
  37
  38 #include <linux/skbuff.h>
  39 #include <linux/netdevice.h>
  40 #include "dpaa_eth.h"
  41 #include <linux/tracepoint.h>
  42
  43 #define fd_format_name(format)  { qm_fd_##format, #format }
  44 #define fd_format_list  \
  45         fd_format_name(contig), \
  46         fd_format_name(sg)
  47
  48 /* This is used to declare a class of events.
  49  * individual events of this type will be defined below.
  50  */
  51
  52 /* Store details about a frame descriptor and the FQ on which it was
  53  * transmitted/received.
  54  */
  55 DECLARE_EVENT_CLASS(dpaa_eth_fd,
  56         /* Trace function prototype */
  57         TP_PROTO(struct net_device *netdev,
  58                  struct qman_fq *fq,
  59                  const struct qm_fd *fd),
  60
  61         /* Repeat argument list here */
  62         TP_ARGS(netdev, fq, fd),
  63
  64         /* A structure containing the relevant information we want to record.
  65          * Declare name and type for each normal element, name, type and size
  66          * for arrays. Use __string for variable length strings.
  67          */
  68         TP_STRUCT__entry(
  69                 __field(u32,    fqid)
  70                 __field(u64,    fd_addr)
  71                 __field(u8,     fd_format)
  72                 __field(u16,    fd_offset)
  73                 __field(u32,    fd_length)
  74                 __field(u32,    fd_status)
  75                 __string(name,  netdev->name)
  76         ),
  77
  78         /* The function that assigns values to the above declared fields */
  79         TP_fast_assign(
  80                 __entry->fqid = fq->fqid;
  81                 __entry->fd_addr = qm_fd_addr_get64(fd);
  82                 __entry->fd_format = qm_fd_get_format(fd);
  83                 __entry->fd_offset = qm_fd_get_offset(fd);
  84                 __entry->fd_length = qm_fd_get_length(fd);
  85                 __entry->fd_status = fd->status;
  86                 __assign_str(name, netdev->name);
  87         ),
  88
  89         /* This is what gets printed when the trace event is triggered */
  90         TP_printk("[%s] fqid=%d, fd: addr=0x%llx, format=%s, off=%u, len=%u, status=0x%08x",
  91                   __get_str(name), __entry->fqid, __entry->fd_addr,
  92                   __print_symbolic(__entry->fd_format, fd_format_list),
  93                   __entry->fd_offset, __entry->fd_length, __entry->fd_status)
  94 );
  95
  96 /* Now declare events of the above type. Format is:
  97  * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
  98  */
  99
 100 /* Tx (egress) fd */
 101 DEFINE_EVENT(dpaa_eth_fd, dpaa_tx_fd,
 102
 103         TP_PROTO(struct net_device *netdev,
 104                  struct qman_fq *fq,
 105                  const struct qm_fd *fd),
 106
 107         TP_ARGS(netdev, fq, fd)
 108 );
 109
 110 /* Rx fd */
 111 DEFINE_EVENT(dpaa_eth_fd, dpaa_rx_fd,
 112
 113         TP_PROTO(struct net_device *netdev,
 114                  struct qman_fq *fq,
 115                  const struct qm_fd *fd),
 116
 117         TP_ARGS(netdev, fq, fd)
 118 );
 119
 120 /* Tx confirmation fd */
 121 DEFINE_EVENT(dpaa_eth_fd, dpaa_tx_conf_fd,
 122
 123         TP_PROTO(struct net_device *netdev,
 124                  struct qman_fq *fq,
 125                  const struct qm_fd *fd),
 126
 127         TP_ARGS(netdev, fq, fd)
 128 );
 129
 130 /* If only one event of a certain type needs to be declared, use TRACE_EVENT().
 131  * The syntax is the same as for DECLARE_EVENT_CLASS().
 132  */
 133
 134 #endif /* _DPAA_ETH_TRACE_H */
 135
 136 /* This must be outside ifdef _DPAA_ETH_TRACE_H */
 137 #undef TRACE_INCLUDE_PATH
 138 #define TRACE_INCLUDE_PATH .
 139 #undef TRACE_INCLUDE_FILE
 140 #define TRACE_INCLUDE_FILE      dpaa_eth_trace
 141 #include <trace/define_trace.h>