1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM 9p
4
5#if !defined(_TRACE_9P_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_9P_H
7
8#include <linux/tracepoint.h>
9
10#define P9_MSG_T							\
11		EM( P9_TLERROR,		"P9_TLERROR" )			\
12		EM( P9_RLERROR,		"P9_RLERROR" )			\
13		EM( P9_TSTATFS,		"P9_TSTATFS" )			\
14		EM( P9_RSTATFS,		"P9_RSTATFS" )			\
15		EM( P9_TLOPEN,		"P9_TLOPEN" )			\
16		EM( P9_RLOPEN,		"P9_RLOPEN" )			\
17		EM( P9_TLCREATE,	"P9_TLCREATE" )			\
18		EM( P9_RLCREATE,	"P9_RLCREATE" )			\
19		EM( P9_TSYMLINK,	"P9_TSYMLINK" )			\
20		EM( P9_RSYMLINK,	"P9_RSYMLINK" )			\
21		EM( P9_TMKNOD,		"P9_TMKNOD" )			\
22		EM( P9_RMKNOD,		"P9_RMKNOD" )			\
23		EM( P9_TRENAME,		"P9_TRENAME" )			\
24		EM( P9_RRENAME,		"P9_RRENAME" )			\
25		EM( P9_TREADLINK,	"P9_TREADLINK" )		\
26		EM( P9_RREADLINK,	"P9_RREADLINK" )		\
27		EM( P9_TGETATTR,	"P9_TGETATTR" )			\
28		EM( P9_RGETATTR,	"P9_RGETATTR" )			\
29		EM( P9_TSETATTR,	"P9_TSETATTR" )			\
30		EM( P9_RSETATTR,	"P9_RSETATTR" )			\
31		EM( P9_TXATTRWALK,	"P9_TXATTRWALK" )		\
32		EM( P9_RXATTRWALK,	"P9_RXATTRWALK" )		\
33		EM( P9_TXATTRCREATE,	"P9_TXATTRCREATE" )		\
34		EM( P9_RXATTRCREATE,	"P9_RXATTRCREATE" )		\
35		EM( P9_TREADDIR,	"P9_TREADDIR" )			\
36		EM( P9_RREADDIR,	"P9_RREADDIR" )			\
37		EM( P9_TFSYNC,		"P9_TFSYNC" )			\
38		EM( P9_RFSYNC,		"P9_RFSYNC" )			\
39		EM( P9_TLOCK,		"P9_TLOCK" )			\
40		EM( P9_RLOCK,		"P9_RLOCK" )			\
41		EM( P9_TGETLOCK,	"P9_TGETLOCK" )			\
42		EM( P9_RGETLOCK,	"P9_RGETLOCK" )			\
43		EM( P9_TLINK,		"P9_TLINK" )			\
44		EM( P9_RLINK,		"P9_RLINK" )			\
45		EM( P9_TMKDIR,		"P9_TMKDIR" )			\
46		EM( P9_RMKDIR,		"P9_RMKDIR" )			\
47		EM( P9_TRENAMEAT,	"P9_TRENAMEAT" )		\
48		EM( P9_RRENAMEAT,	"P9_RRENAMEAT" )		\
49		EM( P9_TUNLINKAT,	"P9_TUNLINKAT" )		\
50		EM( P9_RUNLINKAT,	"P9_RUNLINKAT" )		\
51		EM( P9_TVERSION,	"P9_TVERSION" )			\
52		EM( P9_RVERSION,	"P9_RVERSION" )			\
53		EM( P9_TAUTH,		"P9_TAUTH" )			\
54		EM( P9_RAUTH,		"P9_RAUTH" )			\
55		EM( P9_TATTACH,		"P9_TATTACH" )			\
56		EM( P9_RATTACH,		"P9_RATTACH" )			\
57		EM( P9_TERROR,		"P9_TERROR" )			\
58		EM( P9_RERROR,		"P9_RERROR" )			\
59		EM( P9_TFLUSH,		"P9_TFLUSH" )			\
60		EM( P9_RFLUSH,		"P9_RFLUSH" )			\
61		EM( P9_TWALK,		"P9_TWALK" )			\
62		EM( P9_RWALK,		"P9_RWALK" )			\
63		EM( P9_TOPEN,		"P9_TOPEN" )			\
64		EM( P9_ROPEN,		"P9_ROPEN" )			\
65		EM( P9_TCREATE,		"P9_TCREATE" )			\
66		EM( P9_RCREATE,		"P9_RCREATE" )			\
67		EM( P9_TREAD,		"P9_TREAD" )			\
68		EM( P9_RREAD,		"P9_RREAD" )			\
69		EM( P9_TWRITE,		"P9_TWRITE" )			\
70		EM( P9_RWRITE,		"P9_RWRITE" )			\
71		EM( P9_TCLUNK,		"P9_TCLUNK" )			\
72		EM( P9_RCLUNK,		"P9_RCLUNK" )			\
73		EM( P9_TREMOVE,		"P9_TREMOVE" )			\
74		EM( P9_RREMOVE,		"P9_RREMOVE" )			\
75		EM( P9_TSTAT,		"P9_TSTAT" )			\
76		EM( P9_RSTAT,		"P9_RSTAT" )			\
77		EM( P9_TWSTAT,		"P9_TWSTAT" )			\
78		EMe(P9_RWSTAT,		"P9_RWSTAT" )
79
80
81#define P9_FID_REFTYPE							\
82		EM( P9_FID_REF_CREATE,	"create " )			\
83		EM( P9_FID_REF_GET,	"get    " )			\
84		EM( P9_FID_REF_PUT,	"put    " )			\
85		EMe(P9_FID_REF_DESTROY,	"destroy" )
86
87/* Define EM() to export the enums to userspace via TRACE_DEFINE_ENUM() */
88#undef EM
89#undef EMe
90#define EM(a, b)	TRACE_DEFINE_ENUM(a);
91#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
92
93P9_MSG_T
94P9_FID_REFTYPE
95
96/* And also use EM/EMe to define helper enums -- once */
97#ifndef __9P_DECLARE_TRACE_ENUMS_ONLY_ONCE
98#define __9P_DECLARE_TRACE_ENUMS_ONLY_ONCE
99#undef EM
100#undef EMe
101#define EM(a, b)	a,
102#define EMe(a, b)	a
103
104enum p9_fid_reftype {
105	P9_FID_REFTYPE
106} __mode(byte);
107
108#endif
109
110/*
111 * Now redefine the EM() and EMe() macros to map the enums to the strings
112 * that will be printed in the output.
113 */
114#undef EM
115#undef EMe
116#define EM(a, b)	{ a, b },
117#define EMe(a, b)	{ a, b }
118
119#define show_9p_op(type)						\
120	__print_symbolic(type, P9_MSG_T)
121#define show_9p_fid_reftype(type)					\
122	__print_symbolic(type, P9_FID_REFTYPE)
123
124TRACE_EVENT(9p_client_req,
125	    TP_PROTO(struct p9_client *clnt, int8_t type, int tag),
126
127	    TP_ARGS(clnt, type, tag),
128
129	    TP_STRUCT__entry(
130		    __field(    void *,		clnt			     )
131		    __field(	__u8,		type			     )
132		    __field(	__u32,		tag			     )
133		    ),
134
135	    TP_fast_assign(
136		    __entry->clnt    =  clnt;
137		    __entry->type    =  type;
138		    __entry->tag     =  tag;
139		    ),
140
141	    TP_printk("client %lu request %s tag  %d",
142		    (long)__entry->clnt, show_9p_op(__entry->type),
143		    __entry->tag)
144 );
145
146TRACE_EVENT(9p_client_res,
147	    TP_PROTO(struct p9_client *clnt, int8_t type, int tag, int err),
148
149	    TP_ARGS(clnt, type, tag, err),
150
151	    TP_STRUCT__entry(
152		    __field(    void *,		clnt			     )
153		    __field(	__u8,		type			     )
154		    __field(	__u32,		tag			     )
155		    __field(	__u32,		err			     )
156		    ),
157
158	    TP_fast_assign(
159		    __entry->clnt    =  clnt;
160		    __entry->type    =  type;
161		    __entry->tag     =  tag;
162		    __entry->err     =  err;
163		    ),
164
165	    TP_printk("client %lu response %s tag  %d err %d",
166		      (long)__entry->clnt, show_9p_op(__entry->type),
167		      __entry->tag, __entry->err)
168);
169
170/* dump 32 bytes of protocol data */
171#define P9_PROTO_DUMP_SZ 32
172TRACE_EVENT(9p_protocol_dump,
173	    TP_PROTO(struct p9_client *clnt, struct p9_fcall *pdu),
174
175	    TP_ARGS(clnt, pdu),
176
177	    TP_STRUCT__entry(
178		    __field(	void *,		clnt				)
179		    __field(	__u8,		type				)
180		    __field(	__u16,		tag				)
181		    __dynamic_array(unsigned char, line,
182				min_t(size_t, pdu->capacity, P9_PROTO_DUMP_SZ))
183		    ),
184
185	    TP_fast_assign(
186		    __entry->clnt   =  clnt;
187		    __entry->type   =  pdu->id;
188		    __entry->tag    =  pdu->tag;
189		    memcpy(__get_dynamic_array(line), pdu->sdata,
190				__get_dynamic_array_len(line));
191		    ),
192	    TP_printk("clnt %lu %s(tag = %d)\n%*ph\n",
193		      (unsigned long)__entry->clnt, show_9p_op(__entry->type),
194		      __entry->tag, __get_dynamic_array_len(line),
195		      __get_dynamic_array(line))
196 );
197
198
199TRACE_EVENT(9p_fid_ref,
200	    TP_PROTO(struct p9_fid *fid, __u8 type),
201
202	    TP_ARGS(fid, type),
203
204	    TP_STRUCT__entry(
205		    __field(	int,	fid		)
206		    __field(	int,	refcount	)
207		    __field(	__u8, type	)
208		    ),
209
210	    TP_fast_assign(
211		    __entry->fid = fid->fid;
212		    __entry->refcount = refcount_read(&fid->count);
213		    __entry->type = type;
214		    ),
215
216	    TP_printk("%s fid %d, refcount %d",
217		      show_9p_fid_reftype(__entry->type),
218		      __entry->fid, __entry->refcount)
219);
220
221
222#endif /* _TRACE_9P_H */
223
224/* This part must be outside protection */
225#include <trace/define_trace.h>
226