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38 #include <sys/queue.h>
41 #include <rte_devargs.h>
42 #include <rte_debug.h>
43 #include <rte_devargs.h>
46 #include "eal_private.h"
48 /** Global list of device drivers. */
49 static struct rte_driver_list dev_driver_list =
50 TAILQ_HEAD_INITIALIZER(dev_driver_list);
51 /** Global list of device drivers. */
52 static struct rte_device_list dev_device_list =
53 TAILQ_HEAD_INITIALIZER(dev_device_list);
55 /* register a driver */
57 rte_eal_driver_register(struct rte_driver *driver)
59 TAILQ_INSERT_TAIL(&dev_driver_list, driver, next);
62 /* unregister a driver */
64 rte_eal_driver_unregister(struct rte_driver *driver)
66 TAILQ_REMOVE(&dev_driver_list, driver, next);
69 void rte_eal_device_insert(struct rte_device *dev)
71 TAILQ_INSERT_TAIL(&dev_device_list, dev, next);
74 void rte_eal_device_remove(struct rte_device *dev)
76 TAILQ_REMOVE(&dev_device_list, dev, next);
80 rte_eal_dev_init(void)
82 struct rte_devargs *devargs;
86 * Note that the dev_driver_list is populated here
87 * from calls made to rte_eal_driver_register from constructor functions
88 * embedded into PMD modules via the RTE_PMD_REGISTER_VDEV macro
91 /* call the init function for each virtual device */
92 TAILQ_FOREACH(devargs, &devargs_list, next) {
94 if (devargs->type != RTE_DEVTYPE_VIRTUAL)
97 if (rte_eal_vdev_init(devargs->virt.drv_name,
99 RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
100 devargs->virt.drv_name);
108 int rte_eal_dev_attach(const char *name, const char *devargs)
110 struct rte_pci_addr addr;
112 if (name == NULL || devargs == NULL) {
113 RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
117 if (eal_parse_pci_DomBDF(name, &addr) == 0) {
118 if (rte_eal_pci_probe_one(&addr) < 0)
122 if (rte_eal_vdev_init(name, devargs))
129 RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
133 int rte_eal_dev_detach(const char *name)
135 struct rte_pci_addr addr;
138 RTE_LOG(ERR, EAL, "Invalid device provided.\n");
142 if (eal_parse_pci_DomBDF(name, &addr) == 0) {
143 if (rte_eal_pci_detach(&addr) < 0)
146 if (rte_eal_vdev_uninit(name))
152 RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);