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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 */
51 * Helper macro for drivers that need to convert to struct rte_vdev_device.
53 #define RTE_DEV_TO_VDEV(ptr) \
54 container_of(ptr, struct rte_vdev_device, device)
56 static inline const char *
57 rte_vdev_device_name(const struct rte_vdev_device *dev)
59 if (dev && dev->device.name)
60 return dev->device.name;
64 static inline const char *
65 rte_vdev_device_args(const struct rte_vdev_device *dev)
67 if (dev && dev->device.devargs)
68 return dev->device.devargs->args;
72 /** Double linked list of virtual device drivers. */
73 TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
76 * Probe function called for each virtual device driver once.
78 typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
81 * Remove function called for each virtual device driver once.
83 typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
86 * A virtual device driver abstraction.
88 struct rte_vdev_driver {
89 TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
90 struct rte_driver driver; /**< Inherited general driver. */
91 rte_vdev_probe_t *probe; /**< Virtual device probe function. */
92 rte_vdev_remove_t *remove; /**< Virtual device remove function. */
96 * Register a virtual device driver.
99 * A pointer to a rte_vdev_driver structure describing the driver
102 void rte_vdev_register(struct rte_vdev_driver *driver);
105 * Unregister a virtual device driver.
108 * A pointer to a rte_vdev_driver structure describing the driver
109 * to be unregistered.
111 void rte_vdev_unregister(struct rte_vdev_driver *driver);
113 #define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
114 RTE_INIT(vdrvinitfn_ ##vdrv);\
115 static const char *vdrvinit_ ## nm ## _alias;\
116 static void vdrvinitfn_ ##vdrv(void)\
118 (vdrv).driver.name = RTE_STR(nm);\
119 (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
120 rte_vdev_register(&vdrv);\
122 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
124 #define RTE_PMD_REGISTER_ALIAS(nm, alias)\
125 static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)