/* * Based on vhost.h of QEMU project * * Copyright 2022 Virtual Open Systems SAS. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef LOOPBACK_VHOST_H #define LOOPBACK_VHOST_H #include <stdint.h> #include <stdbool.h> #include <stddef.h> #include <poll.h> #include <pthread.h> #include "vhost_user_loopback.h" #include "virtio_loopback.h" int vhost_dev_enable_notifiers(struct vhost_dev *hdev, VirtIODevice *vdev); int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev); void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n, bool mask); int vhost_dev_get_config(struct vhost_dev *hdev, uint8_t *config, uint32_t config_len); int vhost_dev_set_config(struct vhost_dev *hdev, const uint8_t *data, uint32_t offset, uint32_t size, uint32_t flags); /** * vhost_dev_set_config_notifier() - register VhostDevConfigOps * @hdev: common vhost_dev_structure * @ops: notifier ops * * If the device is expected to change configuration a notifier can be * setup to handle the case. */ typedef struct VhostDevConfigOps VhostDevConfigOps; void vhost_dev_set_config_notifier(struct vhost_dev *dev, const VhostDevConfigOps *ops); int vhost_dev_prepare_inflight(struct vhost_dev *hdev, VirtIODevice *vdev); int vhost_dev_get_inflight(struct vhost_dev *dev, uint16_t queue_size, struct vhost_inflight *inflight); int vhost_dev_set_inflight(struct vhost_dev *dev, struct vhost_inflight *inflight); void update_mem_table(VirtIODevice *vdev); struct vhost_inflight { int fd; void *addr; uint64_t size; uint64_t offset; uint16_t queue_size; }; #endif /* LOOPBACK_VHOST_H */