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
9void
10qedf_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
30void
31qedf_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
51ret:
52 va_end(va);
53}
54
55void
56qedf_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
77ret:
78 va_end(va);
79}
80
81void
82qedf_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
102ret:
103 va_end(va);
104}
105
106int
107qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
108{
109 *buf = vzalloc(size: len);
110 if (!(*buf))
111 return -ENOMEM;
112
113 return 0;
114}
115
116void
117qedf_free_grc_dump_buf(uint8_t **buf)
118{
119 vfree(addr: *buf);
120 *buf = NULL;
121}
122
123int
124qedf_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
133void
134qedf_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(p: event_string, q: msg, size: sizeof(event_string));
144 else
145 sprintf(buf: event_string, fmt: "GRCDUMP=%u", shost->host_no);
146 break;
147 default:
148 /* do nothing */
149 break;
150 }
151
152 kobject_uevent_env(kobj: &shost->shost_gendev.kobj, action: KOBJ_CHANGE, envp);
153}
154
155int
156qedf_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(kobj: &shost->shost_gendev.kobj,
162 attr: 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
170void
171qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
172{
173 for (; iter->name; iter++)
174 sysfs_remove_bin_file(kobj: &shost->shost_gendev.kobj, attr: iter->attr);
175}
176

source code of linux/drivers/scsi/qedf/qedf_dbg.c