diff options
Diffstat (limited to 'drivers/net/virtio/virtqueue.h')
| -rw-r--r-- | drivers/net/virtio/virtqueue.h | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h index 455aaafe..6737b81d 100644 --- a/drivers/net/virtio/virtqueue.h +++ b/drivers/net/virtio/virtqueue.h @@ -67,12 +67,21 @@ struct rte_mbuf; #define VIRTQUEUE_MAX_NAME_SZ 32 #ifdef RTE_VIRTIO_USER -#define MBUF_DATA_DMA_ADDR(mb, offset) \ - ((uint64_t)((uintptr_t)(*(void **)((uintptr_t)mb + offset)) \ - + (mb)->data_off)) -#else /* RTE_VIRTIO_USER */ -#define MBUF_DATA_DMA_ADDR(mb, offset) rte_mbuf_data_dma_addr(mb) -#endif /* RTE_VIRTIO_USER */ +/** + * Return the physical address (or virtual address in case of + * virtio-user) of mbuf data buffer. + */ +#define VIRTIO_MBUF_ADDR(mb, vq) (*(uint64_t *)((uintptr_t)(mb) + (vq)->offset)) +#else +#define VIRTIO_MBUF_ADDR(mb, vq) ((mb)->buf_physaddr) +#endif + +/** + * Return the physical address (or virtual address in case of + * virtio-user) of mbuf data buffer, taking care of mbuf data offset + */ +#define VIRTIO_MBUF_DATA_DMA_ADDR(mb, vq) \ + (VIRTIO_MBUF_ADDR(mb, vq) + (mb)->data_off) #define VTNET_SQ_RQ_QUEUE_IDX 0 #define VTNET_SQ_TQ_QUEUE_IDX 1 @@ -182,8 +191,8 @@ struct virtqueue { void *vq_ring_virt_mem; /**< linear address of vring*/ unsigned int vq_ring_size; - phys_addr_t vq_ring_mem; /**< physical address of vring */ - /**< use virtual address for virtio-user. */ + phys_addr_t vq_ring_mem; /**< physical address of vring, + * or virtual address for virtio_user. */ /** * Head of the free chain in the descriptor table. If |