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include: update Linux headers to 4.21-rc1/5.0-rc1

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This is simply running the newly-updated script on Linux, in
order to obtain the new header files and all the other updates
from the recent Linux merge window.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini
2019-01-04 09:27:31 +01:00
committed by Michael S. Tsirkin
parent a0a6ef91a4
commit da054c646c
25 changed files with 2243 additions and 1589 deletions
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52
include/standard-headers/linux/virtio_ring.h
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@@ -42,6 +42,13 @@
/* This means the buffer contains a list of buffer descriptors. */
#define VRING_DESC_F_INDIRECT 4
/*
* Mark a descriptor as available or used in packed ring.
* Notice: they are defined as shifts instead of shifted values.
*/
#define VRING_PACKED_DESC_F_AVAIL 7
#define VRING_PACKED_DESC_F_USED 15
/* The Host uses this in used->flags to advise the Guest: don't kick me when
* you add a buffer. It's unreliable, so it's simply an optimization. Guest
* will still kick if it's out of buffers. */
@@ -51,6 +58,23 @@
* optimization. */
#define VRING_AVAIL_F_NO_INTERRUPT 1
/* Enable events in packed ring. */
#define VRING_PACKED_EVENT_FLAG_ENABLE 0x0
/* Disable events in packed ring. */
#define VRING_PACKED_EVENT_FLAG_DISABLE 0x1
/*
* Enable events for a specific descriptor in packed ring.
* (as specified by Descriptor Ring Change Event Offset/Wrap Counter).
* Only valid if VIRTIO_RING_F_EVENT_IDX has been negotiated.
*/
#define VRING_PACKED_EVENT_FLAG_DESC 0x2
/*
* Wrap counter bit shift in event suppression structure
* of packed ring.
*/
#define VRING_PACKED_EVENT_F_WRAP_CTR 15
/* We support indirect buffer descriptors */
#define VIRTIO_RING_F_INDIRECT_DESC 28
@@ -169,4 +193,32 @@ static inline int vring_need_event(uint16_t event_idx, uint16_t new_idx, uint16_
return (uint16_t)(new_idx - event_idx - 1) < (uint16_t)(new_idx - old);
}
struct vring_packed_desc_event {
/* Descriptor Ring Change Event Offset/Wrap Counter. */
uint16_t off_wrap;
/* Descriptor Ring Change Event Flags. */
uint16_t flags;
};
struct vring_packed_desc {
/* Buffer Address. */
uint64_t addr;
/* Buffer Length. */
uint32_t len;
/* Buffer ID. */
uint16_t id;
/* The flags depending on descriptor type. */
uint16_t flags;
};
struct vring_packed {
unsigned int num;
struct vring_packed_desc *desc;
struct vring_packed_desc_event *driver;
struct vring_packed_desc_event *device;
};
#endif /* _LINUX_VIRTIO_RING_H */