| vdpa.h (a6a51adc6e8aafebfe0c4beb80e99694ea562b40) | vdpa.h (d4821902e43453b85b31329441a9f6ac071228a8) |
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| 1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_VDPA_H 3#define _LINUX_VDPA_H 4 5#include <linux/kernel.h> 6#include <linux/device.h> 7#include <linux/interrupt.h> 8#include <linux/vhost_iotlb.h> --- 71 unchanged lines hidden (view full) --- 80 const char *driver_override; 81 const struct vdpa_config_ops *config; 82 struct rw_semaphore cf_lock; /* Protects get/set config */ 83 unsigned int index; 84 bool features_valid; 85 bool use_va; 86 u32 nvqs; 87 struct vdpa_mgmt_dev *mdev; | 1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_VDPA_H 3#define _LINUX_VDPA_H 4 5#include <linux/kernel.h> 6#include <linux/device.h> 7#include <linux/interrupt.h> 8#include <linux/vhost_iotlb.h> --- 71 unchanged lines hidden (view full) --- 80 const char *driver_override; 81 const struct vdpa_config_ops *config; 82 struct rw_semaphore cf_lock; /* Protects get/set config */ 83 unsigned int index; 84 bool features_valid; 85 bool use_va; 86 u32 nvqs; 87 struct vdpa_mgmt_dev *mdev; |
| 88 unsigned int ngroups; |
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| 88}; 89 90/** 91 * struct vdpa_iova_range - the IOVA range support by the device 92 * @first: start of the IOVA range 93 * @last: end of the IOVA range 94 */ 95struct vdpa_iova_range { --- 71 unchanged lines hidden (view full) --- 167 * @vdev: vdpa device 168 * @idx: virtqueue index 169 * Returns int: irq number of a virtqueue, 170 * negative number if no irq assigned. 171 * @get_vq_align: Get the virtqueue align requirement 172 * for the device 173 * @vdev: vdpa device 174 * Returns virtqueue algin requirement | 89}; 90 91/** 92 * struct vdpa_iova_range - the IOVA range support by the device 93 * @first: start of the IOVA range 94 * @last: end of the IOVA range 95 */ 96struct vdpa_iova_range { --- 71 unchanged lines hidden (view full) --- 168 * @vdev: vdpa device 169 * @idx: virtqueue index 170 * Returns int: irq number of a virtqueue, 171 * negative number if no irq assigned. 172 * @get_vq_align: Get the virtqueue align requirement 173 * for the device 174 * @vdev: vdpa device 175 * Returns virtqueue algin requirement |
| 176 * @get_vq_group: Get the group id for a specific virtqueue 177 * @vdev: vdpa device 178 * @idx: virtqueue index 179 * Returns u32: group id for this virtqueue |
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| 175 * @get_device_features: Get virtio features supported by the device 176 * @vdev: vdpa device 177 * Returns the virtio features support by the 178 * device 179 * @set_driver_features: Set virtio features supported by the driver 180 * @vdev: vdpa device 181 * @features: feature support by the driver 182 * Returns integer: success (0) or error (< 0) --- 98 unchanged lines hidden (view full) --- 281 struct netlink_ext_ack *extack); 282 struct vdpa_notification_area 283 (*get_vq_notification)(struct vdpa_device *vdev, u16 idx); 284 /* vq irq is not expected to be changed once DRIVER_OK is set */ 285 int (*get_vq_irq)(struct vdpa_device *vdev, u16 idx); 286 287 /* Device ops */ 288 u32 (*get_vq_align)(struct vdpa_device *vdev); | 180 * @get_device_features: Get virtio features supported by the device 181 * @vdev: vdpa device 182 * Returns the virtio features support by the 183 * device 184 * @set_driver_features: Set virtio features supported by the driver 185 * @vdev: vdpa device 186 * @features: feature support by the driver 187 * Returns integer: success (0) or error (< 0) --- 98 unchanged lines hidden (view full) --- 286 struct netlink_ext_ack *extack); 287 struct vdpa_notification_area 288 (*get_vq_notification)(struct vdpa_device *vdev, u16 idx); 289 /* vq irq is not expected to be changed once DRIVER_OK is set */ 290 int (*get_vq_irq)(struct vdpa_device *vdev, u16 idx); 291 292 /* Device ops */ 293 u32 (*get_vq_align)(struct vdpa_device *vdev); |
| 294 u32 (*get_vq_group)(struct vdpa_device *vdev, u16 idx); |
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| 289 u64 (*get_device_features)(struct vdpa_device *vdev); 290 int (*set_driver_features)(struct vdpa_device *vdev, u64 features); 291 u64 (*get_driver_features)(struct vdpa_device *vdev); 292 void (*set_config_cb)(struct vdpa_device *vdev, 293 struct vdpa_callback *cb); 294 u16 (*get_vq_num_max)(struct vdpa_device *vdev); 295 u16 (*get_vq_num_min)(struct vdpa_device *vdev); 296 u32 (*get_device_id)(struct vdpa_device *vdev); --- 16 unchanged lines hidden (view full) --- 313 int (*dma_unmap)(struct vdpa_device *vdev, u64 iova, u64 size); 314 315 /* Free device resources */ 316 void (*free)(struct vdpa_device *vdev); 317}; 318 319struct vdpa_device *__vdpa_alloc_device(struct device *parent, 320 const struct vdpa_config_ops *config, | 295 u64 (*get_device_features)(struct vdpa_device *vdev); 296 int (*set_driver_features)(struct vdpa_device *vdev, u64 features); 297 u64 (*get_driver_features)(struct vdpa_device *vdev); 298 void (*set_config_cb)(struct vdpa_device *vdev, 299 struct vdpa_callback *cb); 300 u16 (*get_vq_num_max)(struct vdpa_device *vdev); 301 u16 (*get_vq_num_min)(struct vdpa_device *vdev); 302 u32 (*get_device_id)(struct vdpa_device *vdev); --- 16 unchanged lines hidden (view full) --- 319 int (*dma_unmap)(struct vdpa_device *vdev, u64 iova, u64 size); 320 321 /* Free device resources */ 322 void (*free)(struct vdpa_device *vdev); 323}; 324 325struct vdpa_device *__vdpa_alloc_device(struct device *parent, 326 const struct vdpa_config_ops *config, |
| 327 unsigned int ngroups, |
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| 321 size_t size, const char *name, 322 bool use_va); 323 324/** 325 * vdpa_alloc_device - allocate and initilaize a vDPA device 326 * 327 * @dev_struct: the type of the parent structure 328 * @member: the name of struct vdpa_device within the @dev_struct 329 * @parent: the parent device 330 * @config: the bus operations that is supported by this device | 328 size_t size, const char *name, 329 bool use_va); 330 331/** 332 * vdpa_alloc_device - allocate and initilaize a vDPA device 333 * 334 * @dev_struct: the type of the parent structure 335 * @member: the name of struct vdpa_device within the @dev_struct 336 * @parent: the parent device 337 * @config: the bus operations that is supported by this device |
| 338 * @ngroups: the number of virtqueue groups supported by this device |
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| 331 * @name: name of the vdpa device 332 * @use_va: indicate whether virtual address must be used by this device 333 * 334 * Return allocated data structure or ERR_PTR upon error 335 */ | 339 * @name: name of the vdpa device 340 * @use_va: indicate whether virtual address must be used by this device 341 * 342 * Return allocated data structure or ERR_PTR upon error 343 */ |
| 336#define vdpa_alloc_device(dev_struct, member, parent, config, name, use_va) \ 337 container_of(__vdpa_alloc_device( \ 338 parent, config, \ | 344#define vdpa_alloc_device(dev_struct, member, parent, config, ngroups, name, use_va) \ 345 container_of((__vdpa_alloc_device( \ 346 parent, config, ngroups, \ |
| 339 sizeof(dev_struct) + \ 340 BUILD_BUG_ON_ZERO(offsetof( \ | 347 sizeof(dev_struct) + \ 348 BUILD_BUG_ON_ZERO(offsetof( \ |
| 341 dev_struct, member)), name, use_va), \ | 349 dev_struct, member)), name, use_va)), \ |
| 342 dev_struct, member) 343 344int vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); 345void vdpa_unregister_device(struct vdpa_device *vdev); 346 347int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); 348void _vdpa_unregister_device(struct vdpa_device *vdev); 349 --- 130 unchanged lines hidden --- | 350 dev_struct, member) 351 352int vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); 353void vdpa_unregister_device(struct vdpa_device *vdev); 354 355int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); 356void _vdpa_unregister_device(struct vdpa_device *vdev); 357 --- 130 unchanged lines hidden --- |