xref: /openbmc/linux/drivers/scsi/bfa/bfa_plog.h (revision 4f3db074)
1 /*
2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3  * All rights reserved
4  * www.brocade.com
5  *
6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License (GPL) Version 2 as
10  * published by the Free Software Foundation
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  */
17 #ifndef __BFA_PORTLOG_H__
18 #define __BFA_PORTLOG_H__
19 
20 #include "bfa_fc.h"
21 #include "bfa_defs.h"
22 
23 #define BFA_PL_NLOG_ENTS 256
24 #define BFA_PL_LOG_REC_INCR(_x) ((_x)++, (_x) %= BFA_PL_NLOG_ENTS)
25 
26 #define BFA_PL_STRING_LOG_SZ   32   /* number of chars in string log */
27 #define BFA_PL_INT_LOG_SZ      8    /* number of integers in the integer log */
28 
29 enum bfa_plog_log_type {
30 	BFA_PL_LOG_TYPE_INVALID	= 0,
31 	BFA_PL_LOG_TYPE_INT	= 1,
32 	BFA_PL_LOG_TYPE_STRING	= 2,
33 };
34 
35 /*
36  * the (fixed size) record format for each entry in the portlog
37  */
38 struct bfa_plog_rec_s {
39 	u64	tv;	/* timestamp */
40 	u8	 port;	/* Source port that logged this entry */
41 	u8	 mid;	/* module id */
42 	u8	 eid;	/* indicates Rx, Tx, IOCTL, etc.  bfa_plog_eid */
43 	u8	 log_type; /* string/integer log, bfa_plog_log_type_t */
44 	u8	 log_num_ints;
45 	/*
46 	 * interpreted only if log_type is INT_LOG. indicates number of
47 	 * integers in the int_log[] (0-PL_INT_LOG_SZ).
48 	 */
49 	u8	 rsvd;
50 	u16	misc;	/* can be used to indicate fc frame length */
51 	union {
52 		char	    string_log[BFA_PL_STRING_LOG_SZ];
53 		u32	int_log[BFA_PL_INT_LOG_SZ];
54 	} log_entry;
55 
56 };
57 
58 /*
59  * the following #defines will be used by the logging entities to indicate
60  * their module id. BFAL will convert the integer value to string format
61  *
62 * process to be used while changing the following #defines:
63  *  - Always add new entries at the end
64  *  - define corresponding string in BFAL
65  *  - Do not remove any entry or rearrange the order.
66  */
67 enum bfa_plog_mid {
68 	BFA_PL_MID_INVALID	= 0,
69 	BFA_PL_MID_DEBUG	= 1,
70 	BFA_PL_MID_DRVR		= 2,
71 	BFA_PL_MID_HAL		= 3,
72 	BFA_PL_MID_HAL_FCXP	= 4,
73 	BFA_PL_MID_HAL_UF	= 5,
74 	BFA_PL_MID_FCS		= 6,
75 	BFA_PL_MID_LPS		= 7,
76 	BFA_PL_MID_MAX		= 8
77 };
78 
79 #define BFA_PL_MID_STRLEN    8
80 struct bfa_plog_mid_strings_s {
81 	char	    m_str[BFA_PL_MID_STRLEN];
82 };
83 
84 /*
85  * the following #defines will be used by the logging entities to indicate
86  * their event type. BFAL will convert the integer value to string format
87  *
88 * process to be used while changing the following #defines:
89  *  - Always add new entries at the end
90  *  - define corresponding string in BFAL
91  *  - Do not remove any entry or rearrange the order.
92  */
93 enum bfa_plog_eid {
94 	BFA_PL_EID_INVALID		= 0,
95 	BFA_PL_EID_IOC_DISABLE		= 1,
96 	BFA_PL_EID_IOC_ENABLE		= 2,
97 	BFA_PL_EID_PORT_DISABLE		= 3,
98 	BFA_PL_EID_PORT_ENABLE		= 4,
99 	BFA_PL_EID_PORT_ST_CHANGE	= 5,
100 	BFA_PL_EID_TX			= 6,
101 	BFA_PL_EID_TX_ACK1		= 7,
102 	BFA_PL_EID_TX_RJT		= 8,
103 	BFA_PL_EID_TX_BSY		= 9,
104 	BFA_PL_EID_RX			= 10,
105 	BFA_PL_EID_RX_ACK1		= 11,
106 	BFA_PL_EID_RX_RJT		= 12,
107 	BFA_PL_EID_RX_BSY		= 13,
108 	BFA_PL_EID_CT_IN		= 14,
109 	BFA_PL_EID_CT_OUT		= 15,
110 	BFA_PL_EID_DRIVER_START		= 16,
111 	BFA_PL_EID_RSCN			= 17,
112 	BFA_PL_EID_DEBUG		= 18,
113 	BFA_PL_EID_MISC			= 19,
114 	BFA_PL_EID_FIP_FCF_DISC		= 20,
115 	BFA_PL_EID_FIP_FCF_CVL		= 21,
116 	BFA_PL_EID_LOGIN		= 22,
117 	BFA_PL_EID_LOGO			= 23,
118 	BFA_PL_EID_TRUNK_SCN		= 24,
119 	BFA_PL_EID_MAX
120 };
121 
122 #define BFA_PL_ENAME_STRLEN	8
123 struct bfa_plog_eid_strings_s {
124 	char	    e_str[BFA_PL_ENAME_STRLEN];
125 };
126 
127 #define BFA_PL_SIG_LEN	8
128 #define BFA_PL_SIG_STR  "12pl123"
129 
130 /*
131  * per port circular log buffer
132  */
133 struct bfa_plog_s {
134 	char	    plog_sig[BFA_PL_SIG_LEN];	/* Start signature */
135 	u8	 plog_enabled;
136 	u8	 rsvd[7];
137 	u32	ticks;
138 	u16	head;
139 	u16	tail;
140 	struct bfa_plog_rec_s  plog_recs[BFA_PL_NLOG_ENTS];
141 };
142 
143 void bfa_plog_init(struct bfa_plog_s *plog);
144 void bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
145 			enum bfa_plog_eid event, u16 misc, char *log_str);
146 void bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
147 			enum bfa_plog_eid event, u16 misc,
148 			u32 *intarr, u32 num_ints);
149 void bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
150 		enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr);
151 void bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
152 			enum bfa_plog_eid event, u16 misc,
153 			struct fchs_s *fchdr, u32 pld_w0);
154 
155 #endif /* __BFA_PORTLOG_H__ */
156