From b63264c8342e6a1b6971c79550d2af2024b6a4de Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Tue, 14 Aug 2018 18:52:30 +0100 Subject: New upstream version 18.08 Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a Signed-off-by: Luca Boccassi --- lib/librte_vhost/rte_vdpa.h | 87 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 lib/librte_vhost/rte_vdpa.h (limited to 'lib/librte_vhost/rte_vdpa.h') diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h new file mode 100644 index 00000000..90465ca2 --- /dev/null +++ b/lib/librte_vhost/rte_vdpa.h @@ -0,0 +1,87 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Intel Corporation + */ + +#ifndef _RTE_VDPA_H_ +#define _RTE_VDPA_H_ + +/** + * @file + * + * Device specific vhost lib + */ + +#include +#include "rte_vhost.h" + +#define MAX_VDPA_NAME_LEN 128 + +enum vdpa_addr_type { + PCI_ADDR, + VDPA_ADDR_MAX +}; + +struct rte_vdpa_dev_addr { + enum vdpa_addr_type type; + union { + uint8_t __dummy[64]; + struct rte_pci_addr pci_addr; + }; +}; + +struct rte_vdpa_dev_ops { + /* Get capabilities of this device */ + int (*get_queue_num)(int did, uint32_t *queue_num); + int (*get_features)(int did, uint64_t *features); + 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); + + /* Reserved for future extension */ + void *reserved[5]; +}; + +struct rte_vdpa_device { + struct rte_vdpa_dev_addr addr; + struct rte_vdpa_dev_ops *ops; +} __rte_cache_aligned; + +/* Register a vdpa device, return did if successful, -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 */ +int __rte_experimental +rte_vdpa_unregister_device(int did); + +/* Find did of a vdpa device, return -1 on failure */ +int __rte_experimental +rte_vdpa_find_device_id(struct rte_vdpa_dev_addr *addr); + +/* Find a vdpa device based on did */ +struct rte_vdpa_device * __rte_experimental +rte_vdpa_get_device(int did); + +#endif /* _RTE_VDPA_H_ */ -- cgit 1.2.3-korg