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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);
47 /* store a whitelist parameter for later parsing */
49 rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
51 struct rte_devargs *devargs;
52 char buf[RTE_DEVARGS_LEN];
56 ret = snprintf(buf, sizeof(buf), "%s", devargs_str);
57 if (ret < 0 || ret >= (int)sizeof(buf)) {
58 RTE_LOG(ERR, EAL, "user device args too large: <%s>\n",
63 /* use malloc instead of rte_malloc as it's called early at init */
64 devargs = malloc(sizeof(*devargs));
65 if (devargs == NULL) {
66 RTE_LOG(ERR, EAL, "cannot allocate devargs\n");
69 memset(devargs, 0, sizeof(*devargs));
70 devargs->type = devtype;
72 /* set the first ',' to '\0' to split name and arguments */
73 sep = strchr(buf, ',');
76 snprintf(devargs->args, sizeof(devargs->args), "%s", sep + 1);
79 switch (devargs->type) {
80 case RTE_DEVTYPE_WHITELISTED_PCI:
81 case RTE_DEVTYPE_BLACKLISTED_PCI:
82 /* try to parse pci identifier */
83 if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
84 eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0) {
86 "invalid PCI identifier <%s>\n", buf);
91 case RTE_DEVTYPE_VIRTUAL:
92 /* save driver name */
93 ret = snprintf(devargs->virtual.drv_name,
94 sizeof(devargs->virtual.drv_name), "%s", buf);
95 if (ret < 0 || ret >= (int)sizeof(devargs->virtual.drv_name)) {
97 "driver name too large: <%s>\n", buf);
104 TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
108 /* count the number of devices of a specified type */
110 rte_eal_devargs_type_count(enum rte_devtype devtype)
112 struct rte_devargs *devargs;
113 unsigned int count = 0;
115 TAILQ_FOREACH(devargs, &devargs_list, next) {
116 if (devargs->type != devtype)
123 /* dump the user devices on the console */
125 rte_eal_devargs_dump(FILE *f)
127 struct rte_devargs *devargs;
129 fprintf(f, "User device white list:\n");
130 TAILQ_FOREACH(devargs, &devargs_list, next) {
131 if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
132 fprintf(f, " PCI whitelist " PCI_PRI_FMT " %s\n",
133 devargs->pci.addr.domain,
134 devargs->pci.addr.bus,
135 devargs->pci.addr.devid,
136 devargs->pci.addr.function,
138 else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
139 fprintf(f, " PCI blacklist " PCI_PRI_FMT " %s\n",
140 devargs->pci.addr.domain,
141 devargs->pci.addr.bus,
142 devargs->pci.addr.devid,
143 devargs->pci.addr.function,
145 else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
146 fprintf(f, " VIRTUAL %s %s\n",
147 devargs->virtual.drv_name,
150 fprintf(f, " UNKNOWN %s\n", devargs->args);