1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  QLogic FCoE Offload Driver
4  *  Copyright (c) 2016-2018 Cavium Inc.
5  */
6 #include "qedf_dbg.h"
7 #include <linux/vmalloc.h>
8 
9 void
qedf_dbg_err(struct qedf_dbg_ctx * qedf,const char * func,u32 line,const char * fmt,...)10 qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
11 	      const char *fmt, ...)
12 {
13 	va_list va;
14 	struct va_format vaf;
15 
16 	va_start(va, fmt);
17 
18 	vaf.fmt = fmt;
19 	vaf.va = &va;
20 
21 	if (likely(qedf) && likely(qedf->pdev))
22 		pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
23 			func, line, qedf->host_no, &vaf);
24 	else
25 		pr_err("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
26 
27 	va_end(va);
28 }
29 
30 void
qedf_dbg_warn(struct qedf_dbg_ctx * qedf,const char * func,u32 line,const char * fmt,...)31 qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
32 	       const char *fmt, ...)
33 {
34 	va_list va;
35 	struct va_format vaf;
36 
37 	va_start(va, fmt);
38 
39 	vaf.fmt = fmt;
40 	vaf.va = &va;
41 
42 	if (!(qedf_debug & QEDF_LOG_WARN))
43 		goto ret;
44 
45 	if (likely(qedf) && likely(qedf->pdev))
46 		pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
47 			func, line, qedf->host_no, &vaf);
48 	else
49 		pr_warn("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
50 
51 ret:
52 	va_end(va);
53 }
54 
55 void
qedf_dbg_notice(struct qedf_dbg_ctx * qedf,const char * func,u32 line,const char * fmt,...)56 qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
57 		 const char *fmt, ...)
58 {
59 	va_list va;
60 	struct va_format vaf;
61 
62 	va_start(va, fmt);
63 
64 	vaf.fmt = fmt;
65 	vaf.va = &va;
66 
67 	if (!(qedf_debug & QEDF_LOG_NOTICE))
68 		goto ret;
69 
70 	if (likely(qedf) && likely(qedf->pdev))
71 		pr_notice("[%s]:[%s:%d]:%d: %pV",
72 			  dev_name(&(qedf->pdev->dev)), func, line,
73 			  qedf->host_no, &vaf);
74 	else
75 		pr_notice("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
76 
77 ret:
78 	va_end(va);
79 }
80 
81 void
qedf_dbg_info(struct qedf_dbg_ctx * qedf,const char * func,u32 line,u32 level,const char * fmt,...)82 qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
83 	       u32 level, const char *fmt, ...)
84 {
85 	va_list va;
86 	struct va_format vaf;
87 
88 	va_start(va, fmt);
89 
90 	vaf.fmt = fmt;
91 	vaf.va = &va;
92 
93 	if (!(qedf_debug & level))
94 		goto ret;
95 
96 	if (likely(qedf) && likely(qedf->pdev))
97 		pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
98 			func, line, qedf->host_no, &vaf);
99 	else
100 		pr_info("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
101 
102 ret:
103 	va_end(va);
104 }
105 
106 int
qedf_alloc_grc_dump_buf(u8 ** buf,uint32_t len)107 qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
108 {
109 		*buf = vzalloc(len);
110 		if (!(*buf))
111 			return -ENOMEM;
112 
113 		return 0;
114 }
115 
116 void
qedf_free_grc_dump_buf(uint8_t ** buf)117 qedf_free_grc_dump_buf(uint8_t **buf)
118 {
119 		vfree(*buf);
120 		*buf = NULL;
121 }
122 
123 int
qedf_get_grc_dump(struct qed_dev * cdev,const struct qed_common_ops * common,u8 ** buf,uint32_t * grcsize)124 qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
125 		   u8 **buf, uint32_t *grcsize)
126 {
127 	if (!*buf)
128 		return -EINVAL;
129 
130 	return common->dbg_all_data(cdev, *buf);
131 }
132 
133 void
qedf_uevent_emit(struct Scsi_Host * shost,u32 code,char * msg)134 qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
135 {
136 	char event_string[40];
137 	char *envp[] = {event_string, NULL};
138 
139 	memset(event_string, 0, sizeof(event_string));
140 	switch (code) {
141 	case QEDF_UEVENT_CODE_GRCDUMP:
142 		if (msg)
143 			strscpy(event_string, msg, sizeof(event_string));
144 		else
145 			sprintf(event_string, "GRCDUMP=%u", shost->host_no);
146 		break;
147 	default:
148 		/* do nothing */
149 		break;
150 	}
151 
152 	kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
153 }
154 
155 int
qedf_create_sysfs_attr(struct Scsi_Host * shost,struct sysfs_bin_attrs * iter)156 qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
157 {
158 	int ret = 0;
159 
160 	for (; iter->name; iter++) {
161 		ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
162 					    iter->attr);
163 		if (ret)
164 			pr_err("Unable to create sysfs %s attr, err(%d).\n",
165 			       iter->name, ret);
166 	}
167 	return ret;
168 }
169 
170 void
qedf_remove_sysfs_attr(struct Scsi_Host * shost,struct sysfs_bin_attrs * iter)171 qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
172 {
173 	for (; iter->name; iter++)
174 		sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
175 }
176