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40 #include <sys/queue.h>
42 #include <rte_devargs.h>
44 #define VIRTUAL_BUS_NAME "virtual"
46 struct rte_vdev_device {
47 TAILQ_ENTRY(rte_vdev_device) next; /**< Next attached vdev */
48 struct rte_device device; /**< Inherit core device */
51 static inline const char *
52 rte_vdev_device_name(const struct rte_vdev_device *dev)
54 if (dev && dev->device.devargs)
55 return dev->device.devargs->virt.drv_name;
59 static inline const char *
60 rte_vdev_device_args(const struct rte_vdev_device *dev)
62 if (dev && dev->device.devargs)
63 return dev->device.devargs->args;
67 /** Double linked list of virtual device drivers. */
68 TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
71 * Probe function called for each virtual device driver once.
73 typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
76 * Remove function called for each virtual device driver once.
78 typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
81 * A virtual device driver abstraction.
83 struct rte_vdev_driver {
84 TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
85 struct rte_driver driver; /**< Inherited general driver. */
86 rte_vdev_probe_t *probe; /**< Virtual device probe function. */
87 rte_vdev_remove_t *remove; /**< Virtual device remove function. */
91 * Register a virtual device driver.
94 * A pointer to a rte_vdev_driver structure describing the driver
97 void rte_vdev_register(struct rte_vdev_driver *driver);
100 * Unregister a virtual device driver.
103 * A pointer to a rte_vdev_driver structure describing the driver
104 * to be unregistered.
106 void rte_vdev_unregister(struct rte_vdev_driver *driver);
108 #define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
109 RTE_INIT(vdrvinitfn_ ##vdrv);\
110 static const char *vdrvinit_ ## nm ## _alias;\
111 static void vdrvinitfn_ ##vdrv(void)\
113 (vdrv).driver.name = RTE_STR(nm);\
114 (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
115 rte_vdev_register(&vdrv);\
117 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
119 #define RTE_PMD_REGISTER_ALIAS(nm, alias)\
120 static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)