xref: /openbmc/linux/drivers/scsi/qedf/qedf_dbg.h (revision 0e17c50f)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  QLogic FCoE Offload Driver
4  *  Copyright (c) 2016-2018 Cavium Inc.
5  */
6 #ifndef _QEDF_DBG_H_
7 #define _QEDF_DBG_H_
8 
9 #include <linux/types.h>
10 #include <linux/kernel.h>
11 #include <linux/compiler.h>
12 #include <linux/string.h>
13 #include <linux/version.h>
14 #include <linux/pci.h>
15 #include <linux/delay.h>
16 #include <scsi/scsi_transport.h>
17 #include <linux/fs.h>
18 
19 #include <linux/qed/common_hsi.h>
20 #include <linux/qed/qed_if.h>
21 
22 extern uint qedf_debug;
23 
24 /* Debug print level definitions */
25 #define QEDF_LOG_DEFAULT	0x1		/* Set default logging mask */
26 #define QEDF_LOG_INFO		0x2		/*
27 						 * Informational logs,
28 						 * MAC address, WWPN, WWNN
29 						 */
30 #define QEDF_LOG_DISC		0x4		/* Init, discovery, rport */
31 #define QEDF_LOG_LL2		0x8		/* LL2, VLAN logs */
32 #define QEDF_LOG_CONN		0x10		/* Connection setup, cleanup */
33 #define QEDF_LOG_EVT		0x20		/* Events, link, mtu */
34 #define QEDF_LOG_TIMER		0x40		/* Timer events */
35 #define QEDF_LOG_MP_REQ	0x80		/* Middle Path (MP) logs */
36 #define QEDF_LOG_SCSI_TM	0x100		/* SCSI Aborts, Task Mgmt */
37 #define QEDF_LOG_UNSOL		0x200		/* unsolicited event logs */
38 #define QEDF_LOG_IO		0x400		/* scsi cmd, completion */
39 #define QEDF_LOG_MQ		0x800		/* Multi Queue logs */
40 #define QEDF_LOG_BSG		0x1000		/* BSG logs */
41 #define QEDF_LOG_DEBUGFS	0x2000		/* debugFS logs */
42 #define QEDF_LOG_LPORT		0x4000		/* lport logs */
43 #define QEDF_LOG_ELS		0x8000		/* ELS logs */
44 #define QEDF_LOG_NPIV		0x10000		/* NPIV logs */
45 #define QEDF_LOG_SESS		0x20000		/* Connection setup, cleanup */
46 #define QEDF_LOG_TID		0x80000         /*
47 						 * FW TID context acquire
48 						 * free
49 						 */
50 #define QEDF_TRACK_TID		0x100000        /*
51 						 * Track TID state. To be
52 						 * enabled only at module load
53 						 * and not run-time.
54 						 */
55 #define QEDF_TRACK_CMD_LIST    0x300000        /*
56 						* Track active cmd list nodes,
57 						* done with reference to TID,
58 						* hence TRACK_TID also enabled.
59 						*/
60 #define QEDF_LOG_NOTICE	0x40000000	/* Notice logs */
61 #define QEDF_LOG_WARN		0x80000000	/* Warning logs */
62 
63 /* Debug context structure */
64 struct qedf_dbg_ctx {
65 	unsigned int host_no;
66 	struct pci_dev *pdev;
67 #ifdef CONFIG_DEBUG_FS
68 	struct dentry *bdf_dentry;
69 #endif
70 };
71 
72 #define QEDF_ERR(pdev, fmt, ...)	\
73 		qedf_dbg_err(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
74 #define QEDF_WARN(pdev, fmt, ...)	\
75 		qedf_dbg_warn(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
76 #define QEDF_NOTICE(pdev, fmt, ...)	\
77 		qedf_dbg_notice(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
78 #define QEDF_INFO(pdev, level, fmt, ...)	\
79 		qedf_dbg_info(pdev, __func__, __LINE__, level, fmt,	\
80 			      ## __VA_ARGS__)
81 __printf(4, 5)
82 void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
83 			  const char *fmt, ...);
84 __printf(4, 5)
85 void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
86 			   const char *, ...);
87 __printf(4, 5)
88 void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func,
89 			    u32 line, const char *, ...);
90 __printf(5, 6)
91 void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
92 			  u32 info, const char *fmt, ...);
93 
94 /* GRC Dump related defines */
95 
96 struct Scsi_Host;
97 
98 #define QEDF_UEVENT_CODE_GRCDUMP 0
99 
100 struct sysfs_bin_attrs {
101 	char *name;
102 	struct bin_attribute *attr;
103 };
104 
105 extern int qedf_alloc_grc_dump_buf(uint8_t **buf, uint32_t len);
106 extern void qedf_free_grc_dump_buf(uint8_t **buf);
107 extern int qedf_get_grc_dump(struct qed_dev *cdev,
108 			     const struct qed_common_ops *common, uint8_t **buf,
109 			     uint32_t *grcsize);
110 extern void qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg);
111 extern int qedf_create_sysfs_attr(struct Scsi_Host *shost,
112 				   struct sysfs_bin_attrs *iter);
113 extern void qedf_remove_sysfs_attr(struct Scsi_Host *shost,
114 				    struct sysfs_bin_attrs *iter);
115 
116 struct qedf_debugfs_ops {
117 	char *name;
118 	struct qedf_list_of_funcs *qedf_funcs;
119 };
120 
121 extern const struct qedf_debugfs_ops qedf_debugfs_ops[];
122 extern const struct file_operations qedf_dbg_fops[];
123 
124 #ifdef CONFIG_DEBUG_FS
125 /* DebugFS related code */
126 struct qedf_list_of_funcs {
127 	char *oper_str;
128 	ssize_t (*oper_func)(struct qedf_dbg_ctx *qedf);
129 };
130 
131 #define qedf_dbg_fileops(drv, ops) \
132 { \
133 	.owner  = THIS_MODULE, \
134 	.open   = simple_open, \
135 	.read   = drv##_dbg_##ops##_cmd_read, \
136 	.write  = drv##_dbg_##ops##_cmd_write \
137 }
138 
139 /* Used for debugfs sequential files */
140 #define qedf_dbg_fileops_seq(drv, ops) \
141 { \
142 	.owner = THIS_MODULE, \
143 	.open = drv##_dbg_##ops##_open, \
144 	.read = seq_read, \
145 	.llseek = seq_lseek, \
146 	.release = single_release, \
147 }
148 
149 extern void qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
150 				const struct qedf_debugfs_ops *dops,
151 				const struct file_operations *fops);
152 extern void qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf);
153 extern void qedf_dbg_init(char *drv_name);
154 extern void qedf_dbg_exit(void);
155 #endif /* CONFIG_DEBUG_FS */
156 
157 #endif /* _QEDF_DBG_H_ */
158