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 iavf will be "iavf".
7  *
8  * This file is named iavf_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 iavf
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(_IAVF_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
21 #define _IAVF_TRACE_H_
22 
23 #include <linux/tracepoint.h>
24 
25 /*
26  * iavf_trace() macro enables shared code to refer to trace points
27  * like:
28  *
29  * trace_iavf{,vf}_example(args...)
30  *
31  * ... as:
32  *
33  * iavf_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, iavf_trace_enabled(trace_name) wraps references to
43  * trace_iavf{,vf}_<trace_name>_enabled() functions.
44  */
45 #define _IAVF_TRACE_NAME(trace_name) (trace_ ## iavf ## _ ## trace_name)
46 #define IAVF_TRACE_NAME(trace_name) _IAVF_TRACE_NAME(trace_name)
47 
48 #define iavf_trace(trace_name, args...) IAVF_TRACE_NAME(trace_name)(args)
49 
50 #define iavf_trace_enabled(trace_name) IAVF_TRACE_NAME(trace_name##_enabled)()
51 
52 /* Events common to PF and VF. Corresponding versions will be defined
53  * for both, named trace_iavf_* and trace_iavf_*. The iavf_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 	iavf_tx_template,
61 
62 	TP_PROTO(struct iavf_ring *ring,
63 		 struct iavf_tx_desc *desc,
64 		 struct iavf_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 	iavf_tx_template, iavf_clean_tx_irq,
97 	TP_PROTO(struct iavf_ring *ring,
98 		 struct iavf_tx_desc *desc,
99 		 struct iavf_tx_buffer *buf),
100 
101 	TP_ARGS(ring, desc, buf));
102 
103 DEFINE_EVENT(
104 	iavf_tx_template, iavf_clean_tx_irq_unmap,
105 	TP_PROTO(struct iavf_ring *ring,
106 		 struct iavf_tx_desc *desc,
107 		 struct iavf_tx_buffer *buf),
108 
109 	TP_ARGS(ring, desc, buf));
110 
111 DECLARE_EVENT_CLASS(
112 	iavf_rx_template,
113 
114 	TP_PROTO(struct iavf_ring *ring,
115 		 union iavf_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 	iavf_rx_template, iavf_clean_rx_irq,
142 	TP_PROTO(struct iavf_ring *ring,
143 		 union iavf_32byte_rx_desc *desc,
144 		 struct sk_buff *skb),
145 
146 	TP_ARGS(ring, desc, skb));
147 
148 DEFINE_EVENT(
149 	iavf_rx_template, iavf_clean_rx_irq_rx,
150 	TP_PROTO(struct iavf_ring *ring,
151 		 union iavf_32byte_rx_desc *desc,
152 		 struct sk_buff *skb),
153 
154 	TP_ARGS(ring, desc, skb));
155 
156 DECLARE_EVENT_CLASS(
157 	iavf_xmit_template,
158 
159 	TP_PROTO(struct sk_buff *skb,
160 		 struct iavf_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 	iavf_xmit_template, iavf_xmit_frame_ring,
184 	TP_PROTO(struct sk_buff *skb,
185 		 struct iavf_ring *ring),
186 
187 	TP_ARGS(skb, ring));
188 
189 DEFINE_EVENT(
190 	iavf_xmit_template, iavf_xmit_frame_ring_drop,
191 	TP_PROTO(struct sk_buff *skb,
192 		 struct iavf_ring *ring),
193 
194 	TP_ARGS(skb, ring));
195 
196 /* Events unique to the VF. */
197 
198 #endif /* _IAVF_TRACE_H_ */
199 /* This must be outside ifdef _IAVF_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 iavf_trace
209 #include <trace/define_trace.h>
210