root/drivers/net/ethernet/intel/i40e/i40e_trace.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3 
   4 /* Modeled on trace-events-sample.h */
   5 
   6 /* The trace subsystem name for i40e will be "i40e".
   7  *
   8  * This file is named i40e_trace.h.
   9  *
  10  * Since this include file's name is different from the trace
  11  * subsystem name, we'll have to define TRACE_INCLUDE_FILE at the end
  12  * of this file.
  13  */
  14 #undef TRACE_SYSTEM
  15 #define TRACE_SYSTEM i40e
  16 
  17 /* See trace-events-sample.h for a detailed description of why this
  18  * guard clause is different from most normal include files.
  19  */
  20 #if !defined(_I40E_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
  21 #define _I40E_TRACE_H_
  22 
  23 #include <linux/tracepoint.h>
  24 
  25 /**
  26  * i40e_trace() macro enables shared code to refer to trace points
  27  * like:
  28  *
  29  * trace_i40e{,vf}_example(args...)
  30  *
  31  * ... as:
  32  *
  33  * i40e_trace(example, args...)
  34  *
  35  * ... to resolve to the PF or VF version of the tracepoint without
  36  * ifdefs, and to allow tracepoints to be disabled entirely at build
  37  * time.
  38  *
  39  * Trace point should always be referred to in the driver via this
  40  * macro.
  41  *
  42  * Similarly, i40e_trace_enabled(trace_name) wraps references to
  43  * trace_i40e{,vf}_<trace_name>_enabled() functions.
  44  */
  45 #define _I40E_TRACE_NAME(trace_name) (trace_ ## i40e ## _ ## trace_name)
  46 #define I40E_TRACE_NAME(trace_name) _I40E_TRACE_NAME(trace_name)
  47 
  48 #define i40e_trace(trace_name, args...) I40E_TRACE_NAME(trace_name)(args)
  49 
  50 #define i40e_trace_enabled(trace_name) I40E_TRACE_NAME(trace_name##_enabled)()
  51 
  52 /* Events common to PF and VF. Corresponding versions will be defined
  53  * for both, named trace_i40e_* and trace_i40evf_*. The i40e_trace()
  54  * macro above will select the right trace point name for the driver
  55  * being built from shared code.
  56  */
  57 
  58 /* Events related to a vsi & ring */
  59 DECLARE_EVENT_CLASS(
  60         i40e_tx_template,
  61 
  62         TP_PROTO(struct i40e_ring *ring,
  63                  struct i40e_tx_desc *desc,
  64                  struct i40e_tx_buffer *buf),
  65 
  66         TP_ARGS(ring, desc, buf),
  67 
  68         /* The convention here is to make the first fields in the
  69          * TP_STRUCT match the TP_PROTO exactly. This enables the use
  70          * of the args struct generated by the tplist tool (from the
  71          * bcc-tools package) to be used for those fields. To access
  72          * fields other than the tracepoint args will require the
  73          * tplist output to be adjusted.
  74          */
  75         TP_STRUCT__entry(
  76                 __field(void*, ring)
  77                 __field(void*, desc)
  78                 __field(void*, buf)
  79                 __string(devname, ring->netdev->name)
  80         ),
  81 
  82         TP_fast_assign(
  83                 __entry->ring = ring;
  84                 __entry->desc = desc;
  85                 __entry->buf = buf;
  86                 __assign_str(devname, ring->netdev->name);
  87         ),
  88 
  89         TP_printk(
  90                 "netdev: %s ring: %p desc: %p buf %p",
  91                 __get_str(devname), __entry->ring,
  92                 __entry->desc, __entry->buf)
  93 );
  94 
  95 DEFINE_EVENT(
  96         i40e_tx_template, i40e_clean_tx_irq,
  97         TP_PROTO(struct i40e_ring *ring,
  98                  struct i40e_tx_desc *desc,
  99                  struct i40e_tx_buffer *buf),
 100 
 101         TP_ARGS(ring, desc, buf));
 102 
 103 DEFINE_EVENT(
 104         i40e_tx_template, i40e_clean_tx_irq_unmap,
 105         TP_PROTO(struct i40e_ring *ring,
 106                  struct i40e_tx_desc *desc,
 107                  struct i40e_tx_buffer *buf),
 108 
 109         TP_ARGS(ring, desc, buf));
 110 
 111 DECLARE_EVENT_CLASS(
 112         i40e_rx_template,
 113 
 114         TP_PROTO(struct i40e_ring *ring,
 115                  union i40e_32byte_rx_desc *desc,
 116                  struct sk_buff *skb),
 117 
 118         TP_ARGS(ring, desc, skb),
 119 
 120         TP_STRUCT__entry(
 121                 __field(void*, ring)
 122                 __field(void*, desc)
 123                 __field(void*, skb)
 124                 __string(devname, ring->netdev->name)
 125         ),
 126 
 127         TP_fast_assign(
 128                 __entry->ring = ring;
 129                 __entry->desc = desc;
 130                 __entry->skb = skb;
 131                 __assign_str(devname, ring->netdev->name);
 132         ),
 133 
 134         TP_printk(
 135                 "netdev: %s ring: %p desc: %p skb %p",
 136                 __get_str(devname), __entry->ring,
 137                 __entry->desc, __entry->skb)
 138 );
 139 
 140 DEFINE_EVENT(
 141         i40e_rx_template, i40e_clean_rx_irq,
 142         TP_PROTO(struct i40e_ring *ring,
 143                  union i40e_32byte_rx_desc *desc,
 144                  struct sk_buff *skb),
 145 
 146         TP_ARGS(ring, desc, skb));
 147 
 148 DEFINE_EVENT(
 149         i40e_rx_template, i40e_clean_rx_irq_rx,
 150         TP_PROTO(struct i40e_ring *ring,
 151                  union i40e_32byte_rx_desc *desc,
 152                  struct sk_buff *skb),
 153 
 154         TP_ARGS(ring, desc, skb));
 155 
 156 DECLARE_EVENT_CLASS(
 157         i40e_xmit_template,
 158 
 159         TP_PROTO(struct sk_buff *skb,
 160                  struct i40e_ring *ring),
 161 
 162         TP_ARGS(skb, ring),
 163 
 164         TP_STRUCT__entry(
 165                 __field(void*, skb)
 166                 __field(void*, ring)
 167                 __string(devname, ring->netdev->name)
 168         ),
 169 
 170         TP_fast_assign(
 171                 __entry->skb = skb;
 172                 __entry->ring = ring;
 173                 __assign_str(devname, ring->netdev->name);
 174         ),
 175 
 176         TP_printk(
 177                 "netdev: %s skb: %p ring: %p",
 178                 __get_str(devname), __entry->skb,
 179                 __entry->ring)
 180 );
 181 
 182 DEFINE_EVENT(
 183         i40e_xmit_template, i40e_xmit_frame_ring,
 184         TP_PROTO(struct sk_buff *skb,
 185                  struct i40e_ring *ring),
 186 
 187         TP_ARGS(skb, ring));
 188 
 189 DEFINE_EVENT(
 190         i40e_xmit_template, i40e_xmit_frame_ring_drop,
 191         TP_PROTO(struct sk_buff *skb,
 192                  struct i40e_ring *ring),
 193 
 194         TP_ARGS(skb, ring));
 195 
 196 /* Events unique to the PF. */
 197 
 198 #endif /* _I40E_TRACE_H_ */
 199 /* This must be outside ifdef _I40E_TRACE_H */
 200 
 201 /* This trace include file is not located in the .../include/trace
 202  * with the kernel tracepoint definitions, because we're a loadable
 203  * module.
 204  */
 205 #undef TRACE_INCLUDE_PATH
 206 #define TRACE_INCLUDE_PATH .
 207 #undef TRACE_INCLUDE_FILE
 208 #define TRACE_INCLUDE_FILE i40e_trace
 209 #include <trace/define_trace.h>