root/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
   2 /* Copyright 2014-2015 Freescale Semiconductor Inc.
   3  */
   4 
   5 #undef TRACE_SYSTEM
   6 #define TRACE_SYSTEM    dpaa2_eth
   7 
   8 #if !defined(_DPAA2_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
   9 #define _DPAA2_ETH_TRACE_H
  10 
  11 #include <linux/skbuff.h>
  12 #include <linux/netdevice.h>
  13 #include "dpaa2-eth.h"
  14 #include <linux/tracepoint.h>
  15 
  16 #define TR_FMT "[%s] fd: addr=0x%llx, len=%u, off=%u"
  17 /* trace_printk format for raw buffer event class */
  18 #define TR_BUF_FMT "[%s] vaddr=%p size=%zu dma_addr=%pad map_size=%zu bpid=%d"
  19 
  20 /* This is used to declare a class of events.
  21  * individual events of this type will be defined below.
  22  */
  23 
  24 /* Store details about a frame descriptor */
  25 DECLARE_EVENT_CLASS(dpaa2_eth_fd,
  26                     /* Trace function prototype */
  27                     TP_PROTO(struct net_device *netdev,
  28                              const struct dpaa2_fd *fd),
  29 
  30                     /* Repeat argument list here */
  31                     TP_ARGS(netdev, fd),
  32 
  33                     /* A structure containing the relevant information we want
  34                      * to record. Declare name and type for each normal element,
  35                      * name, type and size for arrays. Use __string for variable
  36                      * length strings.
  37                      */
  38                     TP_STRUCT__entry(
  39                                      __field(u64, fd_addr)
  40                                      __field(u32, fd_len)
  41                                      __field(u16, fd_offset)
  42                                      __string(name, netdev->name)
  43                     ),
  44 
  45                     /* The function that assigns values to the above declared
  46                      * fields
  47                      */
  48                     TP_fast_assign(
  49                                    __entry->fd_addr = dpaa2_fd_get_addr(fd);
  50                                    __entry->fd_len = dpaa2_fd_get_len(fd);
  51                                    __entry->fd_offset = dpaa2_fd_get_offset(fd);
  52                                    __assign_str(name, netdev->name);
  53                     ),
  54 
  55                     /* This is what gets printed when the trace event is
  56                      * triggered.
  57                      */
  58                     TP_printk(TR_FMT,
  59                               __get_str(name),
  60                               __entry->fd_addr,
  61                               __entry->fd_len,
  62                               __entry->fd_offset)
  63 );
  64 
  65 /* Now declare events of the above type. Format is:
  66  * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
  67  */
  68 
  69 /* Tx (egress) fd */
  70 DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_fd,
  71              TP_PROTO(struct net_device *netdev,
  72                       const struct dpaa2_fd *fd),
  73 
  74              TP_ARGS(netdev, fd)
  75 );
  76 
  77 /* Rx fd */
  78 DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_fd,
  79              TP_PROTO(struct net_device *netdev,
  80                       const struct dpaa2_fd *fd),
  81 
  82              TP_ARGS(netdev, fd)
  83 );
  84 
  85 /* Tx confirmation fd */
  86 DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_conf_fd,
  87              TP_PROTO(struct net_device *netdev,
  88                       const struct dpaa2_fd *fd),
  89 
  90              TP_ARGS(netdev, fd)
  91 );
  92 
  93 /* Log data about raw buffers. Useful for tracing DPBP content. */
  94 TRACE_EVENT(dpaa2_eth_buf_seed,
  95             /* Trace function prototype */
  96             TP_PROTO(struct net_device *netdev,
  97                      /* virtual address and size */
  98                      void *vaddr,
  99                      size_t size,
 100                      /* dma map address and size */
 101                      dma_addr_t dma_addr,
 102                      size_t map_size,
 103                      /* buffer pool id, if relevant */
 104                      u16 bpid),
 105 
 106             /* Repeat argument list here */
 107             TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid),
 108 
 109             /* A structure containing the relevant information we want
 110              * to record. Declare name and type for each normal element,
 111              * name, type and size for arrays. Use __string for variable
 112              * length strings.
 113              */
 114             TP_STRUCT__entry(
 115                              __field(void *, vaddr)
 116                              __field(size_t, size)
 117                              __field(dma_addr_t, dma_addr)
 118                              __field(size_t, map_size)
 119                              __field(u16, bpid)
 120                              __string(name, netdev->name)
 121             ),
 122 
 123             /* The function that assigns values to the above declared
 124              * fields
 125              */
 126             TP_fast_assign(
 127                            __entry->vaddr = vaddr;
 128                            __entry->size = size;
 129                            __entry->dma_addr = dma_addr;
 130                            __entry->map_size = map_size;
 131                            __entry->bpid = bpid;
 132                            __assign_str(name, netdev->name);
 133             ),
 134 
 135             /* This is what gets printed when the trace event is
 136              * triggered.
 137              */
 138             TP_printk(TR_BUF_FMT,
 139                       __get_str(name),
 140                       __entry->vaddr,
 141                       __entry->size,
 142                       &__entry->dma_addr,
 143                       __entry->map_size,
 144                       __entry->bpid)
 145 );
 146 
 147 /* If only one event of a certain type needs to be declared, use TRACE_EVENT().
 148  * The syntax is the same as for DECLARE_EVENT_CLASS().
 149  */
 150 
 151 #endif /* _DPAA2_ETH_TRACE_H */
 152 
 153 /* This must be outside ifdef _DPAA2_ETH_TRACE_H */
 154 #undef TRACE_INCLUDE_PATH
 155 #define TRACE_INCLUDE_PATH .
 156 #undef TRACE_INCLUDE_FILE
 157 #define TRACE_INCLUDE_FILE      dpaa2-eth-trace
 158 #include <trace/define_trace.h>