mirror of https://gitee.com/openkylin/linux.git
virtio_net: use virtqueue_xxx wrappers
Switch virtio_net to new virtqueue_xxx wrappers. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Michael S. Tsirkin
Rusty Russell
parent
09ec6b69d2
commit
1915a712f2
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@ -119,7 +119,7 @@ static void skb_xmit_done(struct virtqueue *svq)
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struct virtnet_info *vi = svq->vdev->priv;
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/* Suppress further interrupts. */
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svq->vq_ops->disable_cb(svq);
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virtqueue_disable_cb(svq);
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/* We were probably waiting for more output buffers. */
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netif_wake_queue(vi->dev);
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@ -207,7 +207,7 @@ static int receive_mergeable(struct virtnet_info *vi, struct sk_buff *skb)
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return -EINVAL;
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}
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page = vi->rvq->vq_ops->get_buf(vi->rvq, &len);
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page = virtqueue_get_buf(vi->rvq, &len);
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if (!page) {
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pr_debug("%s: rx error: %d buffers missing\n",
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skb->dev->name, hdr->mhdr.num_buffers);
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@ -339,7 +339,7 @@ static int add_recvbuf_small(struct virtnet_info *vi, gfp_t gfp)
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skb_to_sgvec(skb, sg + 1, 0, skb->len);
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err = vi->rvq->vq_ops->add_buf(vi->rvq, sg, 0, 2, skb);
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err = virtqueue_add_buf(vi->rvq, sg, 0, 2, skb);
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if (err < 0)
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dev_kfree_skb(skb);
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@ -386,7 +386,7 @@ static int add_recvbuf_big(struct virtnet_info *vi, gfp_t gfp)
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/* chain first in list head */
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first->private = (unsigned long)list;
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err = vi->rvq->vq_ops->add_buf(vi->rvq, sg, 0, MAX_SKB_FRAGS + 2,
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err = virtqueue_add_buf(vi->rvq, sg, 0, MAX_SKB_FRAGS + 2,
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first);
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if (err < 0)
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give_pages(vi, first);
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@ -406,7 +406,7 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi, gfp_t gfp)
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sg_init_one(&sg, page_address(page), PAGE_SIZE);
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err = vi->rvq->vq_ops->add_buf(vi->rvq, &sg, 0, 1, page);
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err = virtqueue_add_buf(vi->rvq, &sg, 0, 1, page);
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if (err < 0)
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give_pages(vi, page);
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@ -435,7 +435,7 @@ static bool try_fill_recv(struct virtnet_info *vi, gfp_t gfp)
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} while (err > 0);
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if (unlikely(vi->num > vi->max))
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vi->max = vi->num;
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vi->rvq->vq_ops->kick(vi->rvq);
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virtqueue_kick(vi->rvq);
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return !oom;
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}
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@ -444,7 +444,7 @@ static void skb_recv_done(struct virtqueue *rvq)
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struct virtnet_info *vi = rvq->vdev->priv;
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/* Schedule NAPI, Suppress further interrupts if successful. */
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if (napi_schedule_prep(&vi->napi)) {
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rvq->vq_ops->disable_cb(rvq);
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virtqueue_disable_cb(rvq);
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__napi_schedule(&vi->napi);
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}
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}
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@ -473,7 +473,7 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
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again:
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while (received < budget &&
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(buf = vi->rvq->vq_ops->get_buf(vi->rvq, &len)) != NULL) {
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(buf = virtqueue_get_buf(vi->rvq, &len)) != NULL) {
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receive_buf(vi->dev, buf, len);
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--vi->num;
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received++;
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@ -487,9 +487,9 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
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/* Out of packets? */
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if (received < budget) {
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napi_complete(napi);
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if (unlikely(!vi->rvq->vq_ops->enable_cb(vi->rvq)) &&
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if (unlikely(!virtqueue_enable_cb(vi->rvq)) &&
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napi_schedule_prep(napi)) {
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vi->rvq->vq_ops->disable_cb(vi->rvq);
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virtqueue_disable_cb(vi->rvq);
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__napi_schedule(napi);
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goto again;
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}
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@ -503,7 +503,7 @@ static unsigned int free_old_xmit_skbs(struct virtnet_info *vi)
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struct sk_buff *skb;
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unsigned int len, tot_sgs = 0;
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while ((skb = vi->svq->vq_ops->get_buf(vi->svq, &len)) != NULL) {
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while ((skb = virtqueue_get_buf(vi->svq, &len)) != NULL) {
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pr_debug("Sent skb %p\n", skb);
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vi->dev->stats.tx_bytes += skb->len;
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vi->dev->stats.tx_packets++;
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@ -559,7 +559,7 @@ static int xmit_skb(struct virtnet_info *vi, struct sk_buff *skb)
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sg_set_buf(sg, &hdr->hdr, sizeof hdr->hdr);
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hdr->num_sg = skb_to_sgvec(skb, sg+1, 0, skb->len) + 1;
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return vi->svq->vq_ops->add_buf(vi->svq, sg, hdr->num_sg, 0, skb);
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return virtqueue_add_buf(vi->svq, sg, hdr->num_sg, 0, skb);
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}
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static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
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@ -578,14 +578,14 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
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if (unlikely(capacity < 0)) {
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netif_stop_queue(dev);
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dev_warn(&dev->dev, "Unexpected full queue\n");
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if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
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vi->svq->vq_ops->disable_cb(vi->svq);
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if (unlikely(!virtqueue_enable_cb(vi->svq))) {
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virtqueue_disable_cb(vi->svq);
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netif_start_queue(dev);
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goto again;
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}
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return NETDEV_TX_BUSY;
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}
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vi->svq->vq_ops->kick(vi->svq);
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virtqueue_kick(vi->svq);
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/* Don't wait up for transmitted skbs to be freed. */
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skb_orphan(skb);
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@ -595,12 +595,12 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
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* before it gets out of hand. Naturally, this wastes entries. */
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if (capacity < 2+MAX_SKB_FRAGS) {
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netif_stop_queue(dev);
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if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
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if (unlikely(!virtqueue_enable_cb(vi->svq))) {
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/* More just got used, free them then recheck. */
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capacity += free_old_xmit_skbs(vi);
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if (capacity >= 2+MAX_SKB_FRAGS) {
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netif_start_queue(dev);
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vi->svq->vq_ops->disable_cb(vi->svq);
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virtqueue_disable_cb(vi->svq);
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}
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}
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}
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@ -645,7 +645,7 @@ static int virtnet_open(struct net_device *dev)
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* now. virtnet_poll wants re-enable the queue, so we disable here.
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* We synchronize against interrupts via NAPI_STATE_SCHED */
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if (napi_schedule_prep(&vi->napi)) {
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vi->rvq->vq_ops->disable_cb(vi->rvq);
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virtqueue_disable_cb(vi->rvq);
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__napi_schedule(&vi->napi);
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}
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return 0;
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@ -682,15 +682,15 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
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sg_set_buf(&sg[i + 1], sg_virt(s), s->length);
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sg_set_buf(&sg[out + in - 1], &status, sizeof(status));
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BUG_ON(vi->cvq->vq_ops->add_buf(vi->cvq, sg, out, in, vi) < 0);
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BUG_ON(virtqueue_add_buf(vi->cvq, sg, out, in, vi) < 0);
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vi->cvq->vq_ops->kick(vi->cvq);
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virtqueue_kick(vi->cvq);
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/*
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* Spin for a response, the kick causes an ioport write, trapping
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* into the hypervisor, so the request should be handled immediately.
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*/
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while (!vi->cvq->vq_ops->get_buf(vi->cvq, &tmp))
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while (!virtqueue_get_buf(vi->cvq, &tmp))
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cpu_relax();
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return status == VIRTIO_NET_OK;
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@ -1006,13 +1006,13 @@ static void free_unused_bufs(struct virtnet_info *vi)
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{
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void *buf;
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while (1) {
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buf = vi->svq->vq_ops->detach_unused_buf(vi->svq);
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buf = virtqueue_detach_unused_buf(vi->svq);
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if (!buf)
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break;
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dev_kfree_skb(buf);
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}
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while (1) {
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buf = vi->rvq->vq_ops->detach_unused_buf(vi->rvq);
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buf = virtqueue_detach_unused_buf(vi->rvq);
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if (!buf)
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break;
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if (vi->mergeable_rx_bufs || vi->big_packets)
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