Lines Matching refs:vdev
27 * vdev: the virtio_device
32 * vdev: the virtio_device
37 * vdev: the virtio_device
40 * vdev: the virtio_device
43 * vdev: the virtio_device
46 * vdev: the virtio device
51 * vdev: the virtio_device
61 * vdev: the virtio_device
64 * vdev: the virtio_device
70 * vdev: the virtio_device
79 void (*get)(struct virtio_device *vdev, unsigned offset,
81 void (*set)(struct virtio_device *vdev, unsigned offset,
83 u32 (*generation)(struct virtio_device *vdev);
84 u8 (*get_status)(struct virtio_device *vdev);
85 void (*set_status)(struct virtio_device *vdev, u8 status);
86 void (*reset)(struct virtio_device *vdev);
92 u64 (*get_features)(struct virtio_device *vdev);
93 int (*finalize_features)(struct virtio_device *vdev);
94 const char *(*bus_name)(struct virtio_device *vdev);
97 const struct cpumask *(*get_vq_affinity)(struct virtio_device *vdev,
99 bool (*get_shm_region)(struct virtio_device *vdev,
104 void virtio_check_driver_offered_feature(const struct virtio_device *vdev,
111 * @vdev: the device
114 static inline bool __virtio_test_bit(const struct virtio_device *vdev,
123 return vdev->features & BIT_ULL(fbit);
128 * @vdev: the device
131 static inline void __virtio_set_bit(struct virtio_device *vdev,
140 vdev->features |= BIT_ULL(fbit);
145 * @vdev: the device
148 static inline void __virtio_clear_bit(struct virtio_device *vdev,
157 vdev->features &= ~BIT_ULL(fbit);
162 * @vdev: the device
165 static inline bool virtio_has_feature(const struct virtio_device *vdev,
169 virtio_check_driver_offered_feature(vdev, fbit);
171 return __virtio_test_bit(vdev, fbit);
176 * @vdev: the device
178 static inline bool virtio_has_dma_quirk(const struct virtio_device *vdev)
184 return !virtio_has_feature(vdev, VIRTIO_F_ACCESS_PLATFORM);
188 struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev,
194 int err = vdev->config->find_vqs(vdev, 1, &vq, callbacks, names, NULL,
202 int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
207 return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, NULL, desc);
211 int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs,
216 return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, ctx,
222 * @vdev: the device
238 const char *virtio_bus_name(struct virtio_device *vdev)
240 if (!vdev->config->bus_name)
242 return vdev->config->bus_name(vdev);
257 struct virtio_device *vdev = vq->vdev;
258 if (vdev->config->set_vq_affinity)
259 return vdev->config->set_vq_affinity(vq, cpu_mask);
264 bool virtio_get_shm_region(struct virtio_device *vdev,
267 if (!vdev->config->get_shm_region)
269 return vdev->config->get_shm_region(vdev, region, id);
272 static inline bool virtio_is_little_endian(struct virtio_device *vdev)
274 return virtio_has_feature(vdev, VIRTIO_F_VERSION_1) ||
279 static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val)
281 return __virtio16_to_cpu(virtio_is_little_endian(vdev), val);
284 static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val)
286 return __cpu_to_virtio16(virtio_is_little_endian(vdev), val);
289 static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val)
291 return __virtio32_to_cpu(virtio_is_little_endian(vdev), val);
294 static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val)
296 return __cpu_to_virtio32(virtio_is_little_endian(vdev), val);
299 static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val)
301 return __virtio64_to_cpu(virtio_is_little_endian(vdev), val);
304 static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val)
306 return __cpu_to_virtio64(virtio_is_little_endian(vdev), val);
309 #define virtio_to_cpu(vdev, x) \
312 __virtio16: virtio16_to_cpu((vdev), (x)), \
313 __virtio32: virtio32_to_cpu((vdev), (x)), \
314 __virtio64: virtio64_to_cpu((vdev), (x)) \
317 #define cpu_to_virtio(vdev, x, m) \
320 __virtio16: cpu_to_virtio16((vdev), (x)), \
321 __virtio32: cpu_to_virtio32((vdev), (x)), \
322 __virtio64: cpu_to_virtio64((vdev), (x)) \
329 #define virtio_cread(vdev, structname, member, ptr) \
335 typecheck(typeof(virtio_to_cpu((vdev), virtio_cread_v)), *(ptr)); \
341 vdev->config->get((vdev), \
347 __virtio_cread_many((vdev), \
354 *(ptr) = virtio_to_cpu(vdev, virtio_cread_v); \
358 #define virtio_cwrite(vdev, structname, member, ptr) \
361 cpu_to_virtio(vdev, *(ptr), ((structname*)0)->member); \
365 typecheck(typeof(virtio_to_cpu((vdev), virtio_cwrite_v)), *(ptr)); \
367 vdev->config->set((vdev), offsetof(structname, member), \
393 #define virtio_cread_le(vdev, structname, member, ptr) \
405 vdev->config->get((vdev), \
411 __virtio_cread_many((vdev), \
421 #define virtio_cwrite_le(vdev, structname, member, ptr) \
430 vdev->config->set((vdev), offsetof(structname, member), \
437 static inline void __virtio_cread_many(struct virtio_device *vdev,
441 u32 old, gen = vdev->config->generation ?
442 vdev->config->generation(vdev) : 0;
450 vdev->config->get(vdev, offset + bytes * i,
453 gen = vdev->config->generation ?
454 vdev->config->generation(vdev) : 0;
458 static inline void virtio_cread_bytes(struct virtio_device *vdev,
462 __virtio_cread_many(vdev, offset, buf, len, 1);
465 static inline u8 virtio_cread8(struct virtio_device *vdev, unsigned int offset)
470 vdev->config->get(vdev, offset, &ret, sizeof(ret));
474 static inline void virtio_cwrite8(struct virtio_device *vdev,
478 vdev->config->set(vdev, offset, &val, sizeof(val));
481 static inline u16 virtio_cread16(struct virtio_device *vdev,
487 vdev->config->get(vdev, offset, &ret, sizeof(ret));
488 return virtio16_to_cpu(vdev, ret);
491 static inline void virtio_cwrite16(struct virtio_device *vdev,
497 v = cpu_to_virtio16(vdev, val);
498 vdev->config->set(vdev, offset, &v, sizeof(v));
501 static inline u32 virtio_cread32(struct virtio_device *vdev,
507 vdev->config->get(vdev, offset, &ret, sizeof(ret));
508 return virtio32_to_cpu(vdev, ret);
511 static inline void virtio_cwrite32(struct virtio_device *vdev,
517 v = cpu_to_virtio32(vdev, val);
518 vdev->config->set(vdev, offset, &v, sizeof(v));
521 static inline u64 virtio_cread64(struct virtio_device *vdev,
526 __virtio_cread_many(vdev, offset, &ret, 1, sizeof(ret));
527 return virtio64_to_cpu(vdev, ret);
530 static inline void virtio_cwrite64(struct virtio_device *vdev,
536 v = cpu_to_virtio64(vdev, val);
537 vdev->config->set(vdev, offset, &v, sizeof(v));
541 #define virtio_cread_feature(vdev, fbit, structname, member, ptr) \
544 if (!virtio_has_feature(vdev, fbit)) \
547 virtio_cread((vdev), structname, member, ptr); \
552 #define virtio_cread_le_feature(vdev, fbit, structname, member, ptr) \
555 if (!virtio_has_feature(vdev, fbit)) \
558 virtio_cread_le((vdev), structname, member, ptr); \