aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/bfa/include/cs/bfa_trc.h
blob: 310771c888e7f18cbb672f787009af29e8169b28 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/*
 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */
#ifndef __BFA_TRC_H__
#define __BFA_TRC_H__

#include <bfa_os_inc.h>

#ifndef BFA_TRC_MAX
#define BFA_TRC_MAX	(4 * 1024)
#endif

#ifndef BFA_TRC_TS
#define BFA_TRC_TS(_trcm)	((_trcm)->ticks++)
#endif

struct bfa_trc_s {
#ifdef __BIGENDIAN
	u16	fileno;
	u16	line;
#else
	u16	line;
	u16	fileno;
#endif
	u32	timestamp;
	union {
		struct {
			u32	rsvd;
			u32	u32;
		} u32;
		u64	u64;
	} data;
};


struct bfa_trc_mod_s {
	u32	head;
	u32	tail;
	u32	ntrc;
	u32	stopped;
	u32	ticks;
	u32	rsvd[3];
	struct bfa_trc_s trc[BFA_TRC_MAX];
};


enum {
	BFA_TRC_FW   = 1,	/*  firmware modules */
	BFA_TRC_HAL  = 2,	/*  BFA modules */
	BFA_TRC_FCS  = 3,	/*  BFA FCS modules */
	BFA_TRC_LDRV = 4,	/*  Linux driver modules */
	BFA_TRC_SDRV = 5,	/*  Solaris driver modules */
	BFA_TRC_VDRV = 6,	/*  vmware driver modules */
	BFA_TRC_WDRV = 7,	/*  windows driver modules */
	BFA_TRC_AEN  = 8,	/*  AEN module */
	BFA_TRC_BIOS = 9,	/*  bios driver modules */
	BFA_TRC_EFI  = 10,	/*  EFI driver modules */
	BNA_TRC_WDRV = 11,	/*  BNA windows driver modules */
	BNA_TRC_VDRV = 12,	/*  BNA vmware driver modules */
	BNA_TRC_SDRV = 13,	/*  BNA Solaris driver modules */
	BNA_TRC_LDRV = 14,	/*  BNA Linux driver modules */
	BNA_TRC_HAL  = 15,	/*  BNA modules */
	BFA_TRC_CNA  = 16,	/*  Common modules */
	BNA_TRC_IMDRV = 17	/*  BNA windows intermediate driver modules */
};
#define BFA_TRC_MOD_SH	10
#define BFA_TRC_MOD(__mod)	((BFA_TRC_ ## __mod) << BFA_TRC_MOD_SH)

/**
 * Define a new tracing file (module). Module should match one defined above.
 */
#define BFA_TRC_FILE(__mod, __submod)					\
	static int __trc_fileno = ((BFA_TRC_ ## __mod ## _ ## __submod) | \
						 BFA_TRC_MOD(__mod))


#define bfa_trc32(_trcp, _data)	\
	__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)


#ifndef BFA_BOOT_BUILD
#define bfa_trc(_trcp, _data)	\
	__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u64)_data)
#else
void bfa_boot_trc(struct bfa_trc_mod_s *trcmod, u16 fileno,
			u16 line, u32 data);
#define bfa_trc(_trcp, _data)	\
	bfa_boot_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)
#endif


static inline void
bfa_trc_init(struct bfa_trc_mod_s *trcm)
{
	trcm->head = trcm->tail = trcm->stopped = 0;
	trcm->ntrc = BFA_TRC_MAX;
}


static inline void
bfa_trc_stop(struct bfa_trc_mod_s *trcm)
{
	trcm->stopped = 1;
}

#ifdef FWTRC
extern void dc_flush(void *data);
#else
#define dc_flush(data)
#endif


static inline void
__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
{
	int		tail = trcm->tail;
	struct bfa_trc_s 	*trc = &trcm->trc[tail];

	if (trcm->stopped)
		return;

	trc->fileno = (u16) fileno;
	trc->line = (u16) line;
	trc->data.u64 = data;
	trc->timestamp = BFA_TRC_TS(trcm);
	dc_flush(trc);

	trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
	if (trcm->tail == trcm->head)
		trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
	dc_flush(trcm);
}


static inline void
__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
{
	int		tail = trcm->tail;
	struct bfa_trc_s *trc = &trcm->trc[tail];

	if (trcm->stopped)
		return;

	trc->fileno = (u16) fileno;
	trc->line = (u16) line;
	trc->data.u32.u32 = data;
	trc->timestamp = BFA_TRC_TS(trcm);
	dc_flush(trc);

	trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
	if (trcm->tail == trcm->head)
		trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
	dc_flush(trcm);
}

#ifndef BFA_PERF_BUILD
#define bfa_trc_fp(_trcp, _data)	bfa_trc(_trcp, _data)
#else
#define bfa_trc_fp(_trcp, _data)
#endif

#endif /* __BFA_TRC_H__ */