1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*-
* BSD LICENSE
*
* Copyright 2014 6WIND S.A.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of 6WIND S.A nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* This file manages the list of devices and their arguments, as given
* by the user at startup
*
* Code here should not call rte_log since the EAL environment
* may not be initialized.
*/
#include <stdio.h>
#include <string.h>
#include <rte_pci.h>
#include <rte_devargs.h>
#include "eal_private.h"
/** Global list of user devices */
struct rte_devargs_list devargs_list =
TAILQ_HEAD_INITIALIZER(devargs_list);
int
rte_eal_parse_devargs_str(const char *devargs_str,
char **drvname, char **drvargs)
{
char *sep;
if ((devargs_str) == NULL || (drvname) == NULL || (drvargs == NULL))
return -1;
*drvname = strdup(devargs_str);
if (drvname == NULL)
return -1;
/* set the first ',' to '\0' to split name and arguments */
sep = strchr(*drvname, ',');
if (sep != NULL) {
sep[0] = '\0';
*drvargs = strdup(sep + 1);
} else {
*drvargs = strdup("");
}
if (*drvargs == NULL) {
free(*drvname);
return -1;
}
return 0;
}
/* store a whitelist parameter for later parsing */
int
rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
{
struct rte_devargs *devargs = NULL;
char *buf = NULL;
int ret;
/* use malloc instead of rte_malloc as it's called early at init */
devargs = malloc(sizeof(*devargs));
if (devargs == NULL)
goto fail;
memset(devargs, 0, sizeof(*devargs));
devargs->type = devtype;
if (rte_eal_parse_devargs_str(devargs_str, &buf, &devargs->args))
goto fail;
switch (devargs->type) {
case RTE_DEVTYPE_WHITELISTED_PCI:
case RTE_DEVTYPE_BLACKLISTED_PCI:
/* try to parse pci identifier */
if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0)
goto fail;
break;
case RTE_DEVTYPE_VIRTUAL:
/* save driver name */
ret = snprintf(devargs->virt.drv_name,
sizeof(devargs->virt.drv_name), "%s", buf);
if (ret < 0 || ret >= (int)sizeof(devargs->virt.drv_name))
goto fail;
break;
}
free(buf);
TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
return 0;
fail:
free(buf);
if (devargs) {
free(devargs->args);
free(devargs);
}
return -1;
}
/* count the number of devices of a specified type */
unsigned int
rte_eal_devargs_type_count(enum rte_devtype devtype)
{
struct rte_devargs *devargs;
unsigned int count = 0;
TAILQ_FOREACH(devargs, &devargs_list, next) {
if (devargs->type != devtype)
continue;
count++;
}
return count;
}
/* dump the user devices on the console */
void
rte_eal_devargs_dump(FILE *f)
{
struct rte_devargs *devargs;
fprintf(f, "User device white list:\n");
TAILQ_FOREACH(devargs, &devargs_list, next) {
if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
fprintf(f, " PCI whitelist " PCI_PRI_FMT " %s\n",
devargs->pci.addr.domain,
devargs->pci.addr.bus,
devargs->pci.addr.devid,
devargs->pci.addr.function,
devargs->args);
else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
fprintf(f, " PCI blacklist " PCI_PRI_FMT " %s\n",
devargs->pci.addr.domain,
devargs->pci.addr.bus,
devargs->pci.addr.devid,
devargs->pci.addr.function,
devargs->args);
else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
fprintf(f, " VIRTUAL %s %s\n",
devargs->virt.drv_name,
devargs->args);
else
fprintf(f, " UNKNOWN %s\n", devargs->args);
}
}
|
