cedca4084a
Some public header files were missing 'extern "C"' C++ guards, and couldn't be used by C++ applications. Add the missing guards. Fixes:d7280c9fff("vhost: support selective datapath") Fixes:78639d5456("vhost: introduce async enqueue registration API") Fixes:3bb595ecd6("vhost/crypto: add request handler") Fixes:94c16e89d7("vhost: mark vDPA driver API as internal") Cc: stable@dpdk.org Signed-off-by: Brian Dooley <brian.dooley@intel.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: Chenbo Xia <chenbo.xia@intel.com> Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Intel Corporation
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*/
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#ifndef _VDPA_DRIVER_H_
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#define _VDPA_DRIVER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include <rte_compat.h>
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#include "rte_vhost.h"
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#include "rte_vdpa.h"
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#define RTE_VHOST_QUEUE_ALL UINT16_MAX
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/**
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* vdpa device operations
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*/
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struct rte_vdpa_dev_ops {
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/** Get capabilities of this device (Mandatory) */
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int (*get_queue_num)(struct rte_vdpa_device *dev, uint32_t *queue_num);
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/** Get supported features of this device (Mandatory) */
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int (*get_features)(struct rte_vdpa_device *dev, uint64_t *features);
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/** Get supported protocol features of this device (Mandatory) */
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int (*get_protocol_features)(struct rte_vdpa_device *dev,
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uint64_t *protocol_features);
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/** Driver configure the device (Mandatory) */
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int (*dev_conf)(int vid);
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/** Driver close the device (Mandatory) */
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int (*dev_close)(int vid);
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/** Connection closed, clean up resources */
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int (*dev_cleanup)(int vid);
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/** Enable/disable this vring (Mandatory) */
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int (*set_vring_state)(int vid, int vring, int state);
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/** Set features when changed (Mandatory) */
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int (*set_features)(int vid);
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/** Destination operations when migration done */
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int (*migration_done)(int vid);
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/** Get the vfio group fd */
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int (*get_vfio_group_fd)(int vid);
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/** Get the vfio device fd */
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int (*get_vfio_device_fd)(int vid);
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/** Get the notify area info of the queue */
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int (*get_notify_area)(int vid, int qid,
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uint64_t *offset, uint64_t *size);
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/** Get statistics name */
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int (*get_stats_names)(struct rte_vdpa_device *dev,
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struct rte_vdpa_stat_name *stats_names,
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unsigned int size);
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/** Get statistics of the queue */
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int (*get_stats)(struct rte_vdpa_device *dev, int qid,
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struct rte_vdpa_stat *stats, unsigned int n);
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/** Reset statistics of the queue */
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int (*reset_stats)(struct rte_vdpa_device *dev, int qid);
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/** Reserved for future extension */
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void *reserved[2];
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};
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/**
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* vdpa device structure includes device address and device operations.
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*/
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struct rte_vdpa_device {
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RTE_TAILQ_ENTRY(rte_vdpa_device) next;
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/** Generic device information */
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struct rte_device *device;
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/** vdpa device operations */
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struct rte_vdpa_dev_ops *ops;
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};
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/**
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* Register a vdpa device
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*
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* @param rte_dev
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* the generic device pointer
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* @param ops
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* the vdpa device operations
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* @return
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* vDPA device pointer on success, NULL on failure
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*/
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__rte_internal
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struct rte_vdpa_device *
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rte_vdpa_register_device(struct rte_device *rte_dev,
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struct rte_vdpa_dev_ops *ops);
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/**
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* Unregister a vdpa device
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*
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* @param dev
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* vDPA device pointer
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* @return
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* device id on success, -1 on failure
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*/
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__rte_internal
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int
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rte_vdpa_unregister_device(struct rte_vdpa_device *dev);
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/**
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* Enable/Disable host notifier mapping for a vdpa port.
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*
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* @param vid
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* vhost device id
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* @param enable
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* true for host notifier map, false for host notifier unmap
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* @param qid
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* vhost queue id, RTE_VHOST_QUEUE_ALL to configure all the device queues
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* @return
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* 0 on success, -1 on failure
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*/
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__rte_internal
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int
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rte_vhost_host_notifier_ctrl(int vid, uint16_t qid, bool enable);
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/**
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* Synchronize the used ring from mediated ring to guest, log dirty
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* page for each writeable buffer, caller should handle the used
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* ring logging before device stop.
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*
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* @param vid
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* vhost device id
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* @param qid
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* vhost queue id
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* @param vring_m
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* mediated virtio ring pointer
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* @return
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* number of synced used entries on success, -1 on failure
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*/
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__rte_internal
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int
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rte_vdpa_relay_vring_used(int vid, uint16_t qid, void *vring_m);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _VDPA_DRIVER_H_ */
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