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40 #include <sys/queue.h>
42 #include <rte_devargs.h>
44 struct rte_vdev_device {
45 TAILQ_ENTRY(rte_vdev_device) next; /**< Next attached vdev */
46 struct rte_device device; /**< Inherit core device */
49 static inline const char *
50 rte_vdev_device_name(const struct rte_vdev_device *dev)
52 if (dev && dev->device.devargs)
53 return dev->device.devargs->virt.drv_name;
57 static inline const char *
58 rte_vdev_device_args(const struct rte_vdev_device *dev)
60 if (dev && dev->device.devargs)
61 return dev->device.devargs->args;
65 /** Double linked list of virtual device drivers. */
66 TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
69 * Probe function called for each virtual device driver once.
71 typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
74 * Remove function called for each virtual device driver once.
76 typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
79 * A virtual device driver abstraction.
81 struct rte_vdev_driver {
82 TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
83 struct rte_driver driver; /**< Inherited general driver. */
84 rte_vdev_probe_t *probe; /**< Virtual device probe function. */
85 rte_vdev_remove_t *remove; /**< Virtual device remove function. */
89 * Register a virtual device driver.
92 * A pointer to a rte_vdev_driver structure describing the driver
95 void rte_vdev_register(struct rte_vdev_driver *driver);
98 * Unregister a virtual device driver.
101 * A pointer to a rte_vdev_driver structure describing the driver
102 * to be unregistered.
104 void rte_vdev_unregister(struct rte_vdev_driver *driver);
106 #define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
107 RTE_INIT(vdrvinitfn_ ##vdrv);\
108 static const char *vdrvinit_ ## nm ## _alias;\
109 static void vdrvinitfn_ ##vdrv(void)\
111 (vdrv).driver.name = RTE_STR(nm);\
112 (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
113 rte_vdev_register(&vdrv);\
115 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
117 #define RTE_PMD_REGISTER_ALIAS(nm, alias)\
118 static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)