* Device specific vhost lib
*/
-#include <stdbool.h>
-
-#include <rte_pci.h>
-#include "rte_vhost.h"
-
-#define MAX_VDPA_NAME_LEN 128
-
/** Maximum name length for statistics counters */
#define RTE_VDPA_STATS_NAME_SIZE 64
+struct rte_vdpa_device;
+
/**
* A vDPA device statistic structure
*
char name[RTE_VDPA_STATS_NAME_SIZE]; /**< The statistic name */
};
-/**
- * vdpa device operations
- */
-struct rte_vdpa_dev_ops {
- /** Get capabilities of this device */
- int (*get_queue_num)(int did, uint32_t *queue_num);
-
- /** Get supported features of this device */
- int (*get_features)(int did, uint64_t *features);
-
- /** Get supported protocol features of this device */
- int (*get_protocol_features)(int did, uint64_t *protocol_features);
-
- /** Driver configure/close the device */
- int (*dev_conf)(int vid);
- int (*dev_close)(int vid);
-
- /** Enable/disable this vring */
- int (*set_vring_state)(int vid, int vring, int state);
-
- /** Set features when changed */
- int (*set_features)(int vid);
-
- /** Destination operations when migration done */
- int (*migration_done)(int vid);
-
- /** Get the vfio group fd */
- int (*get_vfio_group_fd)(int vid);
-
- /** Get the vfio device fd */
- int (*get_vfio_device_fd)(int vid);
-
- /** Get the notify area info of the queue */
- int (*get_notify_area)(int vid, int qid,
- uint64_t *offset, uint64_t *size);
-
- /** Get statistics name */
- int (*get_stats_names)(int did, struct rte_vdpa_stat_name *stats_names,
- unsigned int size);
-
- /** Get statistics of the queue */
- int (*get_stats)(int did, int qid, struct rte_vdpa_stat *stats,
- unsigned int n);
-
- /** Reset statistics of the queue */
- int (*reset_stats)(int did, int qid);
-
- /** Reserved for future extension */
- void *reserved[2];
-};
-
-/**
- * vdpa device structure includes device address and device operations.
- */
-struct rte_vdpa_device {
- /** Generic device information */
- struct rte_device *device;
- /** vdpa device operations */
- struct rte_vdpa_dev_ops *ops;
-} __rte_cache_aligned;
-
-/**
- * @warning
- * @b EXPERIMENTAL: this API may change without prior notice
- *
- * Register a vdpa device
- *
- * @param addr
- * the vdpa device address
- * @param ops
- * the vdpa device operations
- * @return
- * device id on success, -1 on failure
- */
-__rte_experimental
-int
-rte_vdpa_register_device(struct rte_device *rte_dev,
- struct rte_vdpa_dev_ops *ops);
-
-/**
- * @warning
- * @b EXPERIMENTAL: this API may change without prior notice
- *
- * Unregister a vdpa device
- *
- * @param did
- * vdpa device id
- * @return
- * device id on success, -1 on failure
- */
-__rte_experimental
-int
-rte_vdpa_unregister_device(int did);
-
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
* @param name
* the vdpa device name
* @return
- * device id on success, -1 on failure
+ * vDPA device pointer on success, NULL on failure
*/
__rte_experimental
-int
-rte_vdpa_find_device_id_by_name(const char *name);
+struct rte_vdpa_device *
+rte_vdpa_find_device_by_name(const char *name);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
- * Find the device id of a vdpa device
+ * Get the generic device from the vdpa device
*
- * @param addr
- * the vdpa device address
+ * @param vdpa_dev
+ * the vdpa device pointer
* @return
- * device id on success, -1 on failure
+ * generic device pointer on success, NULL on failure
*/
__rte_experimental
-int
-rte_vdpa_find_device_id(struct rte_vdpa_device *dev);
+struct rte_device *
+rte_vdpa_get_rte_device(struct rte_vdpa_device *vdpa_dev);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
- * Find a vdpa device based on device id
+ * Get number of queue pairs supported by the vDPA device
*
- * @param did
- * device id
+ * @param dev
+ * vDP device pointer
+ * @param queue_num
+ * pointer on where the number of queue is stored
* @return
- * rte_vdpa_device on success, NULL on failure
+ * 0 on success, -1 on failure
*/
__rte_experimental
-struct rte_vdpa_device *
-rte_vdpa_get_device(int did);
+int
+rte_vdpa_get_queue_num(struct rte_vdpa_device *dev, uint32_t *queue_num);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
- * Get current available vdpa device number
+ * Get the Virtio features supported by the vDPA device
*
+ * @param dev
+ * vDP device pointer
+ * @param features
+ * pointer on where the supported features are stored
* @return
- * available vdpa device number
+ * 0 on success, -1 on failure
*/
__rte_experimental
int
-rte_vdpa_get_device_num(void);
+rte_vdpa_get_features(struct rte_vdpa_device *dev, uint64_t *features);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
- * Enable/Disable host notifier mapping for a vdpa port.
+ * Get the Vhost-user protocol features supported by the vDPA device
*
- * @param vid
- * vhost device id
- * @param enable
- * true for host notifier map, false for host notifier unmap
+ * @param dev
+ * vDP device pointer
+ * @param features
+ * pointer on where the supported protocol features are stored
* @return
* 0 on success, -1 on failure
*/
__rte_experimental
int
-rte_vhost_host_notifier_ctrl(int vid, bool enable);
+rte_vdpa_get_protocol_features(struct rte_vdpa_device *dev, uint64_t *features);
/**
* @warning
* And the array index is same with id field of 'struct rte_vdpa_stat':
* stats[i].id == i
*
- * @param did
- * device id
+ * @param dev
+ * vDPA device pointer
* @param stats_names
* array of at least size elements to be filled.
* If set to NULL, the function returns the required number of elements.
*/
__rte_experimental
int
-rte_vdpa_get_stats_names(int did, struct rte_vdpa_stat_name *stats_names,
- unsigned int size);
+rte_vdpa_get_stats_names(struct rte_vdpa_device *dev,
+ struct rte_vdpa_stat_name *stats_names,
+ unsigned int size);
/**
* @warning
* And the array index is same with id field of 'struct rte_vdpa_stat':
* stats[i].id == i
*
- * @param did
- * device id
+ * @param dev
+ * vDPA device pointer
* @param qid
* queue id
* @param stats
*/
__rte_experimental
int
-rte_vdpa_get_stats(int did, uint16_t qid, struct rte_vdpa_stat *stats,
- unsigned int n);
+rte_vdpa_get_stats(struct rte_vdpa_device *dev, uint16_t qid,
+ struct rte_vdpa_stat *stats, unsigned int n);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* Reset statistics of a vDPA device.
*
- * @param did
- * device id
+ * @param dev
+ * vDPA device pointer
* @param qid
* queue id
* @return
*/
__rte_experimental
int
-rte_vdpa_reset_stats(int did, uint16_t qid);
+rte_vdpa_reset_stats(struct rte_vdpa_device *dev, uint16_t qid);
#endif /* _RTE_VDPA_H_ */