diff options
Diffstat (limited to 'lib/librte_eal/common/include/rte_dev.h')
| -rw-r--r-- | lib/librte_eal/common/include/rte_dev.h | 123 |
1 files changed, 92 insertions, 31 deletions
diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h index b80a8059..cd6c187c 100644 --- a/lib/librte_eal/common/include/rte_dev.h +++ b/lib/librte_eal/common/include/rte_dev.h @@ -39,7 +39,7 @@ struct rte_dev_event { char *devname; /**< device name */ }; -typedef void (*rte_dev_event_cb_fn)(char *device_name, +typedef void (*rte_dev_event_cb_fn)(const char *device_name, enum rte_dev_event_type event, void *cb_arg); @@ -156,63 +156,67 @@ struct rte_driver { struct rte_device { TAILQ_ENTRY(rte_device) next; /**< Next device */ const char *name; /**< Device name */ - const struct rte_driver *driver;/**< Associated driver */ + const struct rte_driver *driver; /**< Driver assigned after probing */ + const struct rte_bus *bus; /**< Bus handle assigned on scan */ int numa_node; /**< NUMA node connection */ - struct rte_devargs *devargs; /**< Device user arguments */ + struct rte_devargs *devargs; /**< Arguments for latest probing */ }; /** - * Attach a device to a registered driver. + * @warning + * @b EXPERIMENTAL: this API may change without prior notice * - * @param name - * The device name, that refers to a pci device (or some private - * way of designating a vdev device). Based on this device name, eal - * will identify a driver capable of handling it and pass it to the - * driver probing function. - * @param devargs - * Device arguments to be passed to the driver. - * @return - * 0 on success, negative on error. - */ -__rte_deprecated -int rte_eal_dev_attach(const char *name, const char *devargs); - -/** - * Detach a device from its driver. + * Query status of a device. * * @param dev - * A pointer to a rte_device structure. + * Generic device pointer. * @return - * 0 on success, negative on error. + * (int)true if already probed successfully, 0 otherwise. */ -__rte_deprecated -int rte_eal_dev_detach(struct rte_device *dev); +__rte_experimental +int rte_dev_is_probed(const struct rte_device *dev); /** - * @warning - * @b EXPERIMENTAL: this API may change without prior notice - * * Hotplug add a given device to a specific bus. * + * In multi-process, it will request other processes to add the same device. + * A failure, in any process, will rollback the action + * * @param busname * The bus name the device is added to. * @param devname * The device name. Based on this device name, eal will identify a driver * capable of handling it and pass it to the driver probing function. - * @param devargs + * @param drvargs * Device arguments to be passed to the driver. * @return * 0 on success, negative on error. */ -int __rte_experimental rte_eal_hotplug_add(const char *busname, const char *devname, - const char *devargs); +int rte_eal_hotplug_add(const char *busname, const char *devname, + const char *drvargs); /** * @warning * @b EXPERIMENTAL: this API may change without prior notice * + * Add matching devices. + * + * In multi-process, it will request other processes to add the same device. + * A failure, in any process, will rollback the action + * + * @param devargs + * Device arguments including bus, class and driver properties. + * @return + * 0 on success, negative on error. + */ +int __rte_experimental rte_dev_probe(const char *devargs); + +/** * Hotplug remove a given device from a specific bus. * + * In multi-process, it will request other processes to remove the same device. + * A failure, in any process, will rollback the action + * * @param busname * The bus name the device is removed from. * @param devname @@ -220,8 +224,23 @@ int __rte_experimental rte_eal_hotplug_add(const char *busname, const char *devn * @return * 0 on success, negative on error. */ -int __rte_experimental rte_eal_hotplug_remove(const char *busname, - const char *devname); +int rte_eal_hotplug_remove(const char *busname, const char *devname); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Remove one device. + * + * In multi-process, it will request other processes to remove the same device. + * A failure, in any process, will rollback the action + * + * @param dev + * Data structure of the device to remove. + * @return + * 0 on success, negative on error. + */ +int __rte_experimental rte_dev_remove(struct rte_device *dev); /** * Device comparison function. @@ -438,6 +457,22 @@ rte_dev_event_callback_unregister(const char *device_name, * @warning * @b EXPERIMENTAL: this API may change without prior notice * + * Executes all the user application registered callbacks for + * the specific device. + * + * @param device_name + * The device name. + * @param event + * the device event type. + */ +void __rte_experimental +rte_dev_event_callback_process(const char *device_name, + enum rte_dev_event_type event); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * * Start the device event monitoring. * * @return @@ -460,4 +495,30 @@ rte_dev_event_monitor_start(void); int __rte_experimental rte_dev_event_monitor_stop(void); +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Enable hotplug handling for devices. + * + * @return + * - On success, zero. + * - On failure, a negative value. + */ +int __rte_experimental +rte_dev_hotplug_handle_enable(void); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Disable hotplug handling for devices. + * + * @return + * - On success, zero. + * - On failure, a negative value. + */ +int __rte_experimental +rte_dev_hotplug_handle_disable(void); + #endif /* _RTE_DEV_H_ */ |