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 = vmalloc(len);
110 if (!(*buf))
111 return -ENOMEM;
112
113 memset(*buf, 0, len);
114 return 0;
115 }
116
117 void
qedf_free_grc_dump_buf(uint8_t ** buf)118 qedf_free_grc_dump_buf(uint8_t **buf)
119 {
120 vfree(*buf);
121 *buf = NULL;
122 }
123
124 int
qedf_get_grc_dump(struct qed_dev * cdev,const struct qed_common_ops * common,u8 ** buf,uint32_t * grcsize)125 qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
126 u8 **buf, uint32_t *grcsize)
127 {
128 if (!*buf)
129 return -EINVAL;
130
131 return common->dbg_all_data(cdev, *buf);
132 }
133
134 void
qedf_uevent_emit(struct Scsi_Host * shost,u32 code,char * msg)135 qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
136 {
137 char event_string[40];
138 char *envp[] = {event_string, NULL};
139
140 memset(event_string, 0, sizeof(event_string));
141 switch (code) {
142 case QEDF_UEVENT_CODE_GRCDUMP:
143 if (msg)
144 strscpy(event_string, msg, sizeof(event_string));
145 else
146 sprintf(event_string, "GRCDUMP=%u", shost->host_no);
147 break;
148 default:
149 /* do nothing */
150 break;
151 }
152
153 kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
154 }
155
156 int
qedf_create_sysfs_attr(struct Scsi_Host * shost,struct sysfs_bin_attrs * iter)157 qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
158 {
159 int ret = 0;
160
161 for (; iter->name; iter++) {
162 ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
163 iter->attr);
164 if (ret)
165 pr_err("Unable to create sysfs %s attr, err(%d).\n",
166 iter->name, ret);
167 }
168 return ret;
169 }
170
171 void
qedf_remove_sysfs_attr(struct Scsi_Host * shost,struct sysfs_bin_attrs * iter)172 qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
173 {
174 for (; iter->name; iter++)
175 sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
176 }
177