From 3e2f9700bb92d4654147a11de1e52f8ff56083ce Mon Sep 17 00:00:00 2001 From: Maxime Coquelin Date: Fri, 6 Jul 2018 09:07:15 +0200 Subject: [PATCH] vhost: append shadow used ring function names with split Signed-off-by: Maxime Coquelin Acked-by: Tiwei Bie --- lib/librte_vhost/virtio_net.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c index 22c9f15666..49be201132 100644 --- a/lib/librte_vhost/virtio_net.c +++ b/lib/librte_vhost/virtio_net.c @@ -77,8 +77,9 @@ free_ind_table(void *idesc) } static __rte_always_inline void -do_flush_shadow_used_ring(struct virtio_net *dev, struct vhost_virtqueue *vq, - uint16_t to, uint16_t from, uint16_t size) +do_flush_shadow_used_ring_split(struct virtio_net *dev, + struct vhost_virtqueue *vq, + uint16_t to, uint16_t from, uint16_t size) { rte_memcpy(&vq->used->ring[to], &vq->shadow_used_ring[from], @@ -89,22 +90,22 @@ do_flush_shadow_used_ring(struct virtio_net *dev, struct vhost_virtqueue *vq, } static __rte_always_inline void -flush_shadow_used_ring(struct virtio_net *dev, struct vhost_virtqueue *vq) +flush_shadow_used_ring_split(struct virtio_net *dev, struct vhost_virtqueue *vq) { uint16_t used_idx = vq->last_used_idx & (vq->size - 1); if (used_idx + vq->shadow_used_idx <= vq->size) { - do_flush_shadow_used_ring(dev, vq, used_idx, 0, + do_flush_shadow_used_ring_split(dev, vq, used_idx, 0, vq->shadow_used_idx); } else { uint16_t size; /* update used ring interval [used_idx, vq->size] */ size = vq->size - used_idx; - do_flush_shadow_used_ring(dev, vq, used_idx, 0, size); + do_flush_shadow_used_ring_split(dev, vq, used_idx, 0, size); /* update the left half used ring interval [0, left_size] */ - do_flush_shadow_used_ring(dev, vq, 0, size, + do_flush_shadow_used_ring_split(dev, vq, 0, size, vq->shadow_used_idx - size); } vq->last_used_idx += vq->shadow_used_idx; @@ -120,7 +121,7 @@ flush_shadow_used_ring(struct virtio_net *dev, struct vhost_virtqueue *vq) } static __rte_always_inline void -update_shadow_used_ring(struct vhost_virtqueue *vq, +update_shadow_used_ring_split(struct vhost_virtqueue *vq, uint16_t desc_idx, uint16_t len) { uint16_t i = vq->shadow_used_idx++; @@ -353,7 +354,7 @@ reserve_avail_buf_split(struct virtio_net *dev, struct vhost_virtqueue *vq, VHOST_ACCESS_RW) < 0)) return -1; len = RTE_MIN(len, size); - update_shadow_used_ring(vq, head_idx, len); + update_shadow_used_ring_split(vq, head_idx, len); size -= len; cur_idx++; @@ -579,7 +580,7 @@ virtio_dev_rx_split(struct virtio_net *dev, struct vhost_virtqueue *vq, do_data_copy_enqueue(dev, vq); if (likely(vq->shadow_used_idx)) { - flush_shadow_used_ring(dev, vq); + flush_shadow_used_ring_split(dev, vq); vhost_vring_call(dev, vq); } @@ -1048,7 +1049,8 @@ virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq, next = TAILQ_NEXT(zmbuf, next); if (mbuf_is_consumed(zmbuf->mbuf)) { - update_shadow_used_ring(vq, zmbuf->desc_idx, 0); + update_shadow_used_ring_split(vq, + zmbuf->desc_idx, 0); nr_updated += 1; TAILQ_REMOVE(&vq->zmbuf_list, zmbuf, next); @@ -1059,7 +1061,7 @@ virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq, } } - flush_shadow_used_ring(dev, vq); + flush_shadow_used_ring_split(dev, vq); vhost_vring_call(dev, vq); } @@ -1091,7 +1093,7 @@ virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq, break; if (likely(dev->dequeue_zero_copy == 0)) - update_shadow_used_ring(vq, head_idx, 0); + update_shadow_used_ring_split(vq, head_idx, 0); rte_prefetch0((void *)(uintptr_t)buf_vec[0].buf_addr); @@ -1138,7 +1140,7 @@ virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq, do_data_copy_dequeue(vq); if (unlikely(i < count)) vq->shadow_used_idx = i; - flush_shadow_used_ring(dev, vq); + flush_shadow_used_ring_split(dev, vq); vhost_vring_call(dev, vq); } -- 2.20.1