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vhost: add virtio packed virtqueue defines

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Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Acked-by: Tiwei Bie <tiwei.bie@intel.com>
This commit is contained in:
Jens Freimann 2018-07-06 09:07:08 +02:00 committed by Thomas Monjalon
parent 611994fc1b
commit 297b1e7350
1 changed files with 20 additions and 0 deletions
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20
lib/librte_vhost/vhost.h
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@ -192,6 +192,26 @@ struct vhost_msg {
#define VIRTIO_F_VERSION_1 32
#endif
/* Declare packed ring related bits for older kernels */
#ifndef VIRTIO_F_RING_PACKED
#define VIRTIO_F_RING_PACKED 34
#define VRING_DESC_F_NEXT 1
#define VRING_DESC_F_WRITE 2
#define VRING_DESC_F_INDIRECT 4
#define VRING_DESC_F_AVAIL (1ULL << 7)
#define VRING_DESC_F_USED (1ULL << 15)
struct vring_packed_desc {
uint64_t addr;
uint32_t len;
uint16_t id;
uint16_t flags;
};
#endif
/*
* Available and used descs are in same order
*/