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33 /* This file manages the list of devices and their arguments, as given
34 * by the user at startup */
40 #include <rte_devargs.h>
41 #include "eal_private.h"
43 /** Global list of user devices */
44 struct rte_devargs_list devargs_list =
45 TAILQ_HEAD_INITIALIZER(devargs_list);
48 rte_eal_parse_devargs_str(const char *devargs_str,
49 char **drvname, char **drvargs)
53 if ((devargs_str) == NULL || (drvname) == NULL || (drvargs == NULL))
56 *drvname = strdup(devargs_str);
57 if (drvname == NULL) {
59 "cannot allocate temp memory for driver name\n");
63 /* set the first ',' to '\0' to split name and arguments */
64 sep = strchr(*drvname, ',');
67 *drvargs = strdup(sep + 1);
69 *drvargs = strdup("");
72 if (*drvargs == NULL) {
74 "cannot allocate temp memory for driver arguments\n");
81 /* store a whitelist parameter for later parsing */
83 rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
85 struct rte_devargs *devargs = NULL;
89 /* use malloc instead of rte_malloc as it's called early at init */
90 devargs = malloc(sizeof(*devargs));
91 if (devargs == NULL) {
92 RTE_LOG(ERR, EAL, "cannot allocate devargs\n");
95 memset(devargs, 0, sizeof(*devargs));
96 devargs->type = devtype;
98 if (rte_eal_parse_devargs_str(devargs_str, &buf, &devargs->args))
101 switch (devargs->type) {
102 case RTE_DEVTYPE_WHITELISTED_PCI:
103 case RTE_DEVTYPE_BLACKLISTED_PCI:
104 /* try to parse pci identifier */
105 if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
106 eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0) {
107 RTE_LOG(ERR, EAL, "invalid PCI identifier <%s>\n", buf);
111 case RTE_DEVTYPE_VIRTUAL:
112 /* save driver name */
113 ret = snprintf(devargs->virtual.drv_name,
114 sizeof(devargs->virtual.drv_name), "%s", buf);
115 if (ret < 0 || ret >= (int)sizeof(devargs->virtual.drv_name)) {
116 RTE_LOG(ERR, EAL, "driver name too large: <%s>\n", buf);
123 TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
137 /* count the number of devices of a specified type */
139 rte_eal_devargs_type_count(enum rte_devtype devtype)
141 struct rte_devargs *devargs;
142 unsigned int count = 0;
144 TAILQ_FOREACH(devargs, &devargs_list, next) {
145 if (devargs->type != devtype)
152 /* dump the user devices on the console */
154 rte_eal_devargs_dump(FILE *f)
156 struct rte_devargs *devargs;
158 fprintf(f, "User device white list:\n");
159 TAILQ_FOREACH(devargs, &devargs_list, next) {
160 if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
161 fprintf(f, " PCI whitelist " PCI_PRI_FMT " %s\n",
162 devargs->pci.addr.domain,
163 devargs->pci.addr.bus,
164 devargs->pci.addr.devid,
165 devargs->pci.addr.function,
167 else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
168 fprintf(f, " PCI blacklist " PCI_PRI_FMT " %s\n",
169 devargs->pci.addr.domain,
170 devargs->pci.addr.bus,
171 devargs->pci.addr.devid,
172 devargs->pci.addr.function,
174 else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
175 fprintf(f, " VIRTUAL %s %s\n",
176 devargs->virtual.drv_name,
179 fprintf(f, " UNKNOWN %s\n", devargs->args);