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33 /* This file manages the list of devices and their arguments, as given
34 * by the user at startup
36 * Code here should not call rte_log since the EAL environment
37 * may not be initialized.
44 #include <rte_devargs.h>
45 #include "eal_private.h"
47 /** Global list of user devices */
48 struct rte_devargs_list devargs_list =
49 TAILQ_HEAD_INITIALIZER(devargs_list);
52 rte_eal_parse_devargs_str(const char *devargs_str,
53 char **drvname, char **drvargs)
57 if ((devargs_str) == NULL || (drvname) == NULL || (drvargs == NULL))
60 *drvname = strdup(devargs_str);
64 /* set the first ',' to '\0' to split name and arguments */
65 sep = strchr(*drvname, ',');
68 *drvargs = strdup(sep + 1);
70 *drvargs = strdup("");
73 if (*drvargs == NULL) {
80 /* store a whitelist parameter for later parsing */
82 rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
84 struct rte_devargs *devargs = NULL;
88 /* use malloc instead of rte_malloc as it's called early at init */
89 devargs = malloc(sizeof(*devargs));
93 memset(devargs, 0, sizeof(*devargs));
94 devargs->type = devtype;
96 if (rte_eal_parse_devargs_str(devargs_str, &buf, &devargs->args))
99 switch (devargs->type) {
100 case RTE_DEVTYPE_WHITELISTED_PCI:
101 case RTE_DEVTYPE_BLACKLISTED_PCI:
102 /* try to parse pci identifier */
103 if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
104 eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0)
108 case RTE_DEVTYPE_VIRTUAL:
109 /* save driver name */
110 ret = snprintf(devargs->virt.drv_name,
111 sizeof(devargs->virt.drv_name), "%s", buf);
112 if (ret < 0 || ret >= (int)sizeof(devargs->virt.drv_name))
119 TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
133 /* count the number of devices of a specified type */
135 rte_eal_devargs_type_count(enum rte_devtype devtype)
137 struct rte_devargs *devargs;
138 unsigned int count = 0;
140 TAILQ_FOREACH(devargs, &devargs_list, next) {
141 if (devargs->type != devtype)
148 /* dump the user devices on the console */
150 rte_eal_devargs_dump(FILE *f)
152 struct rte_devargs *devargs;
154 fprintf(f, "User device white list:\n");
155 TAILQ_FOREACH(devargs, &devargs_list, next) {
156 if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
157 fprintf(f, " PCI whitelist " PCI_PRI_FMT " %s\n",
158 devargs->pci.addr.domain,
159 devargs->pci.addr.bus,
160 devargs->pci.addr.devid,
161 devargs->pci.addr.function,
163 else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
164 fprintf(f, " PCI blacklist " PCI_PRI_FMT " %s\n",
165 devargs->pci.addr.domain,
166 devargs->pci.addr.bus,
167 devargs->pci.addr.devid,
168 devargs->pci.addr.function,
170 else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
171 fprintf(f, " VIRTUAL %s %s\n",
172 devargs->virt.drv_name,
175 fprintf(f, " UNKNOWN %s\n", devargs->args);