92 lines
2.5 KiB
Plaintext
92 lines
2.5 KiB
Plaintext
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diff --git a/virtio_net.c b/virtio_net.c
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index 35c00c5..8aaaa7e 100644
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--- a/virtio_net.c
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+++ b/virtio_net.c
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@@ -132,6 +132,10 @@ struct virtnet_info {
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struct notifier_block nb;
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};
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+#if defined(CONFIG_NETMAP) || defined(CONFIG_NETMAP_MODULE)
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+#include <virtio_netmap.h>
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+#endif
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+
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struct skb_vnet_hdr {
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union {
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struct virtio_net_hdr hdr;
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@@ -211,6 +215,10 @@ static void skb_xmit_done(struct virtqueue *vq)
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/* Suppress further interrupts. */
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virtqueue_disable_cb(vq);
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+#ifdef DEV_NETMAP
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+ if (netmap_tx_irq(vi->dev, vq2txq(vq)))
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+ return;
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+#endif
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/* We were probably waiting for more output buffers. */
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netif_wake_subqueue(vi->dev, vq2txq(vq));
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}
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@@ -603,7 +611,16 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
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struct virtnet_info *vi = rq->vq->vdev->priv;
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void *buf;
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unsigned int len, received = 0;
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+#ifdef DEV_NETMAP
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+ int work_done = 0;
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+ if (netmap_rx_irq(vi->dev, vq2rxq(rq->vq), &work_done)) {
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+ napi_complete(napi);
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+ ND("called netmap_rx_irq");
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+
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+ return 1;
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+ }
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+#endif
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again:
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while (received < budget &&
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(buf = virtqueue_get_buf(rq->vq, &len)) != NULL) {
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@@ -635,6 +652,16 @@ static int virtnet_open(struct net_device *dev)
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{
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struct virtnet_info *vi = netdev_priv(dev);
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int i;
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+#ifdef DEV_NETMAP
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+ int ok = virtio_netmap_init_buffers(vi);
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+
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+ netmap_enable_all_rings(dev);
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+ if (ok) {
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+ for (i = 0; i < vi->max_queue_pairs; i++)
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+ virtnet_napi_enable(&vi->rq[i]);
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+ return 0;
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+ }
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+#endif
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for (i = 0; i < vi->max_queue_pairs; i++) {
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/* Make sure we have some buffers: if oom use wq. */
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@@ -909,6 +936,9 @@ static int virtnet_close(struct net_device *dev)
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struct virtnet_info *vi = netdev_priv(dev);
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int i;
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+#ifdef DEV_NETMAP
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+ netmap_disable_all_rings(dev);
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+#endif
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/* Make sure refill_work doesn't re-enable napi! */
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cancel_delayed_work_sync(&vi->refill);
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@@ -1572,6 +1602,10 @@ static int virtnet_probe(struct virtio_device *vdev)
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goto free_recv_bufs;
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}
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+#ifdef DEV_NETMAP
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+ virtio_netmap_attach(vi);
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+#endif
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+
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/* Assume link up if device can't report link status,
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otherwise get link status from config. */
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if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS)) {
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@@ -1618,6 +1652,9 @@ static void virtnet_remove(struct virtio_device *vdev)
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{
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struct virtnet_info *vi = vdev->priv;
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+#ifdef DEV_NETMAP
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+ netmap_detach(vi->dev);
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+#endif
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unregister_hotcpu_notifier(&vi->nb);
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/* Prevent config work handler from accessing the device. */
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