linux-headers/linux/vduse.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
23  * struct vduse_dev_config - basic configuration of a VDUSE device
31  * @config_size: the size of the configuration space
32  * @config: the buffer of the configuration space
61  * struct vduse_iotlb_entry - entry of IOTLB to describe one IOVA region [start, last]
81  * and return the corresponding file descriptor. Return -EINVAL means the
94  * struct vduse_config_data - data used to update configuration space
95  * @offset: the offset from the beginning of configuration space
96  * @length: the length to write to configuration space
100  * configuration space.
108 /* Set device configuration space */
113  * that device configuration space has changed.
118  * struct vduse_vq_config - basic configuration of a virtqueue
138  * struct vduse_vq_state_split - split virtqueue state
146  * struct vduse_vq_state_packed - packed virtqueue state
160  * struct vduse_vq_info - information of a virtqueue
189  * struct vduse_vq_eventfd - eventfd configuration for a virtqueue
191  * @fd: eventfd, -1 means de-assigning the eventfd
197 #define VDUSE_EVENTFD_DEASSIGN -1
214  * struct vduse_iova_umem - userspace memory configuration for one IOVA region
221  * ioctls to register/de-register userspace memory for IOVA regions
233 /* De-register the userspace memory. Caller should set iova and size field. */
237  * struct vduse_iova_info - information of one IOVA region
263  * enum vduse_req_type - request type
276  * struct vduse_vq_state - virtqueue state
290  * struct vduse_dev_status - device status
298  * struct vduse_iova_range - IOVA range [start, last]
308  * struct vduse_dev_request - control request
332  * struct vduse_dev_response - response to control request