xref: /openbmc/linux/drivers/scsi/bfa/bfa_plog.h (revision 0edbfea5)
1 /*
2  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
3  * Copyright (c) 2014- QLogic Corporation.
4  * All rights reserved
5  * www.qlogic.com
6  *
7  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License (GPL) Version 2 as
11  * published by the Free Software Foundation
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  */
18 #ifndef __BFA_PORTLOG_H__
19 #define __BFA_PORTLOG_H__
20 
21 #include "bfa_fc.h"
22 #include "bfa_defs.h"
23 
24 #define BFA_PL_NLOG_ENTS 256
25 #define BFA_PL_LOG_REC_INCR(_x) ((_x)++, (_x) %= BFA_PL_NLOG_ENTS)
26 
27 #define BFA_PL_STRING_LOG_SZ   32   /* number of chars in string log */
28 #define BFA_PL_INT_LOG_SZ      8    /* number of integers in the integer log */
29 
30 enum bfa_plog_log_type {
31 	BFA_PL_LOG_TYPE_INVALID	= 0,
32 	BFA_PL_LOG_TYPE_INT	= 1,
33 	BFA_PL_LOG_TYPE_STRING	= 2,
34 };
35 
36 /*
37  * the (fixed size) record format for each entry in the portlog
38  */
39 struct bfa_plog_rec_s {
40 	u64	tv;	/* timestamp */
41 	u8	 port;	/* Source port that logged this entry */
42 	u8	 mid;	/* module id */
43 	u8	 eid;	/* indicates Rx, Tx, IOCTL, etc.  bfa_plog_eid */
44 	u8	 log_type; /* string/integer log, bfa_plog_log_type_t */
45 	u8	 log_num_ints;
46 	/*
47 	 * interpreted only if log_type is INT_LOG. indicates number of
48 	 * integers in the int_log[] (0-PL_INT_LOG_SZ).
49 	 */
50 	u8	 rsvd;
51 	u16	misc;	/* can be used to indicate fc frame length */
52 	union {
53 		char	    string_log[BFA_PL_STRING_LOG_SZ];
54 		u32	int_log[BFA_PL_INT_LOG_SZ];
55 	} log_entry;
56 
57 };
58 
59 /*
60  * the following #defines will be used by the logging entities to indicate
61  * their module id. BFAL will convert the integer value to string format
62  *
63 * process to be used while changing the following #defines:
64  *  - Always add new entries at the end
65  *  - define corresponding string in BFAL
66  *  - Do not remove any entry or rearrange the order.
67  */
68 enum bfa_plog_mid {
69 	BFA_PL_MID_INVALID	= 0,
70 	BFA_PL_MID_DEBUG	= 1,
71 	BFA_PL_MID_DRVR		= 2,
72 	BFA_PL_MID_HAL		= 3,
73 	BFA_PL_MID_HAL_FCXP	= 4,
74 	BFA_PL_MID_HAL_UF	= 5,
75 	BFA_PL_MID_FCS		= 6,
76 	BFA_PL_MID_LPS		= 7,
77 	BFA_PL_MID_MAX		= 8
78 };
79 
80 #define BFA_PL_MID_STRLEN    8
81 struct bfa_plog_mid_strings_s {
82 	char	    m_str[BFA_PL_MID_STRLEN];
83 };
84 
85 /*
86  * the following #defines will be used by the logging entities to indicate
87  * their event type. BFAL will convert the integer value to string format
88  *
89 * process to be used while changing the following #defines:
90  *  - Always add new entries at the end
91  *  - define corresponding string in BFAL
92  *  - Do not remove any entry or rearrange the order.
93  */
94 enum bfa_plog_eid {
95 	BFA_PL_EID_INVALID		= 0,
96 	BFA_PL_EID_IOC_DISABLE		= 1,
97 	BFA_PL_EID_IOC_ENABLE		= 2,
98 	BFA_PL_EID_PORT_DISABLE		= 3,
99 	BFA_PL_EID_PORT_ENABLE		= 4,
100 	BFA_PL_EID_PORT_ST_CHANGE	= 5,
101 	BFA_PL_EID_TX			= 6,
102 	BFA_PL_EID_TX_ACK1		= 7,
103 	BFA_PL_EID_TX_RJT		= 8,
104 	BFA_PL_EID_TX_BSY		= 9,
105 	BFA_PL_EID_RX			= 10,
106 	BFA_PL_EID_RX_ACK1		= 11,
107 	BFA_PL_EID_RX_RJT		= 12,
108 	BFA_PL_EID_RX_BSY		= 13,
109 	BFA_PL_EID_CT_IN		= 14,
110 	BFA_PL_EID_CT_OUT		= 15,
111 	BFA_PL_EID_DRIVER_START		= 16,
112 	BFA_PL_EID_RSCN			= 17,
113 	BFA_PL_EID_DEBUG		= 18,
114 	BFA_PL_EID_MISC			= 19,
115 	BFA_PL_EID_FIP_FCF_DISC		= 20,
116 	BFA_PL_EID_FIP_FCF_CVL		= 21,
117 	BFA_PL_EID_LOGIN		= 22,
118 	BFA_PL_EID_LOGO			= 23,
119 	BFA_PL_EID_TRUNK_SCN		= 24,
120 	BFA_PL_EID_MAX
121 };
122 
123 #define BFA_PL_ENAME_STRLEN	8
124 struct bfa_plog_eid_strings_s {
125 	char	    e_str[BFA_PL_ENAME_STRLEN];
126 };
127 
128 #define BFA_PL_SIG_LEN	8
129 #define BFA_PL_SIG_STR  "12pl123"
130 
131 /*
132  * per port circular log buffer
133  */
134 struct bfa_plog_s {
135 	char	    plog_sig[BFA_PL_SIG_LEN];	/* Start signature */
136 	u8	 plog_enabled;
137 	u8	 rsvd[7];
138 	u32	ticks;
139 	u16	head;
140 	u16	tail;
141 	struct bfa_plog_rec_s  plog_recs[BFA_PL_NLOG_ENTS];
142 };
143 
144 void bfa_plog_init(struct bfa_plog_s *plog);
145 void bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
146 			enum bfa_plog_eid event, u16 misc, char *log_str);
147 void bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
148 			enum bfa_plog_eid event, u16 misc,
149 			u32 *intarr, u32 num_ints);
150 void bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
151 		enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr);
152 void bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
153 			enum bfa_plog_eid event, u16 misc,
154 			struct fchs_s *fchdr, u32 pld_w0);
155 
156 #endif /* __BFA_PORTLOG_H__ */
157