[dpdk-dev] [PATCH v7 3/7] vhost: simplify mergeable Rx vring reservation
Thomas Monjalon
thomas.monjalon at 6wind.com
Wed Oct 26 00:08:49 CEST 2016
2016-10-14 17:34, Yuanhan Liu:
> -static inline uint32_t __attribute__((always_inline))
> +static inline int __attribute__((always_inline))
> copy_mbuf_to_desc_mergeable(struct virtio_net *dev, struct vhost_virtqueue *vq,
> - uint16_t end_idx, struct rte_mbuf *m,
> - struct buf_vector *buf_vec)
> + struct rte_mbuf *m, struct buf_vector *buf_vec,
> + uint16_t num_buffers)
> {
> struct virtio_net_hdr_mrg_rxbuf virtio_hdr = {{0, 0, 0, 0, 0, 0}, 0};
> uint32_t vec_idx = 0;
> - uint16_t start_idx = vq->last_used_idx;
> - uint16_t cur_idx = start_idx;
> + uint16_t cur_idx = vq->last_used_idx;
> uint64_t desc_addr;
> uint32_t desc_chain_head;
> uint32_t desc_chain_len;
> @@ -394,21 +393,21 @@ copy_mbuf_to_desc_mergeable(struct virtio_net *dev, struct vhost_virtqueue *vq,
> struct rte_mbuf *hdr_mbuf;
>
> if (unlikely(m == NULL))
> - return 0;
> + return -1;
>
> LOG_DEBUG(VHOST_DATA, "(%d) current index %d | end index %d\n",
> dev->vid, cur_idx, end_idx);
There is a build error:
lib/librte_vhost/virtio_net.c:399:22: error: ‘end_idx’ undeclared
It is probably trivial and could be fixed directly in the already applied
commit in next-virtio.
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