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authorLuca Boccassi <luca.boccassi@gmail.com>2018-11-01 11:59:50 +0000
committerLuca Boccassi <luca.boccassi@gmail.com>2018-11-01 12:00:19 +0000
commit8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 (patch)
tree208e3bc33c220854d89d010e3abf720a2e62e546 /lib/librte_vhost/rte_vdpa.h
parentb63264c8342e6a1b6971c79550d2af2024b6a4de (diff)
New upstream version 18.11-rc1upstream/18.11-rc1
Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_vhost/rte_vdpa.h')
-rw-r--r--lib/librte_vhost/rte_vdpa.h97
1 files changed, 84 insertions, 13 deletions
diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h
index 90465ca2..a418da47 100644
--- a/lib/librte_vhost/rte_vdpa.h
+++ b/lib/librte_vhost/rte_vdpa.h
@@ -21,67 +21,138 @@ enum vdpa_addr_type {
VDPA_ADDR_MAX
};
+/**
+ * vdpa device address
+ */
struct rte_vdpa_dev_addr {
+ /** vdpa address type */
enum vdpa_addr_type type;
+
+ /** vdpa pci address */
union {
uint8_t __dummy[64];
struct rte_pci_addr pci_addr;
};
};
+/**
+ * vdpa device operations
+ */
struct rte_vdpa_dev_ops {
- /* Get capabilities of this device */
+ /** 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 */
+ /** Driver configure/close the device */
int (*dev_conf)(int vid);
int (*dev_close)(int vid);
- /* Enable/disable this vring */
+ /** Enable/disable this vring */
int (*set_vring_state)(int vid, int vring, int state);
- /* Set features when changed */
+ /** Set features when changed */
int (*set_features)(int vid);
- /* Destination operations when migration done */
+ /** Destination operations when migration done */
int (*migration_done)(int vid);
- /* Get the vfio group fd */
+ /** Get the vfio group fd */
int (*get_vfio_group_fd)(int vid);
- /* Get the vfio device fd */
+ /** Get the vfio device fd */
int (*get_vfio_device_fd)(int vid);
- /* Get the notify area info of the queue */
+ /** Get the notify area info of the queue */
int (*get_notify_area)(int vid, int qid,
uint64_t *offset, uint64_t *size);
- /* Reserved for future extension */
+ /** Reserved for future extension */
void *reserved[5];
};
+/**
+ * vdpa device structure includes device address and device operations.
+ */
struct rte_vdpa_device {
+ /** vdpa device address */
struct rte_vdpa_dev_addr addr;
+ /** vdpa device operations */
struct rte_vdpa_dev_ops *ops;
} __rte_cache_aligned;
-/* Register a vdpa device, return did if successful, -1 on failure */
+/**
+ * @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
+ */
int __rte_experimental
rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
struct rte_vdpa_dev_ops *ops);
-/* Unregister a vdpa device, return -1 on failure */
+/**
+ * @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
+ */
int __rte_experimental
rte_vdpa_unregister_device(int did);
-/* Find did of a vdpa device, return -1 on failure */
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Find the device id of a vdpa device
+ *
+ * @param addr
+ * the vdpa device address
+ * @return
+ * device id on success, -1 on failure
+ */
int __rte_experimental
rte_vdpa_find_device_id(struct rte_vdpa_dev_addr *addr);
-/* Find a vdpa device based on did */
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Find a vdpa device based on device id
+ *
+ * @param did
+ * device id
+ * @return
+ * rte_vdpa_device on success, NULL on failure
+ */
struct rte_vdpa_device * __rte_experimental
rte_vdpa_get_device(int did);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Get current available vdpa device number
+ *
+ * @return
+ * available vdpa device number
+ */
+int __rte_experimental
+rte_vdpa_get_device_num(void);
#endif /* _RTE_VDPA_H_ */