diff options
| -rw-r--r-- | drivers/net/virtio_net.c | 48 |
1 files changed, 2 insertions, 46 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index a7e9ad9b213..01f4eb5c8b7 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -132,9 +132,6 @@ struct virtnet_info { /* Does the affinity hint is set for virtqueues? */ bool affinity_hint_set; - /* Per-cpu variable to show the mapping from CPU to virtqueue */ - int __percpu *vq_index; - /* CPU hot plug notifier */ struct notifier_block nb; }; @@ -1114,7 +1111,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev, static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu) { int i; - int cpu; if (vi->affinity_hint_set) { for (i = 0; i < vi->max_queue_pairs; i++) { @@ -1124,16 +1120,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu) vi->affinity_hint_set = false; } - - i = 0; - for_each_online_cpu(cpu) { - if (cpu == hcpu) { - *per_cpu_ptr(vi->vq_index, cpu) = -1; - } else { - *per_cpu_ptr(vi->vq_index, cpu) = - ++i % vi->curr_queue_pairs; - } - } } static void virtnet_set_affinity(struct virtnet_info *vi) @@ -1155,7 +1141,7 @@ static void virtnet_set_affinity(struct virtnet_info *vi) for_each_online_cpu(cpu) { virtqueue_set_affinity(vi->rq[i].vq, cpu); virtqueue_set_affinity(vi->sq[i].vq, cpu); - *per_cpu_ptr(vi->vq_index, cpu) = i; + netif_set_xps_queue(vi->dev, cpumask_of(cpu), i); i++; } @@ -1269,28 +1255,6 @@ static int virtnet_change_mtu(struct net_device *dev, int new_mtu) return 0; } -/* To avoid contending a lock hold by a vcpu who would exit to host, select the - * txq based on the processor id. - */ -static u16 virtnet_select_queue(struct net_device *dev, struct sk_buff *skb) -{ - int txq; - struct virtnet_info *vi = netdev_priv(dev); - - if (skb_rx_queue_recorded(skb)) { - txq = skb_get_rx_queue(skb); - } else { - txq = *__this_cpu_ptr(vi->vq_index); - if (txq == -1) - txq = 0; - } - - while (unlikely(txq >= dev->real_num_tx_queues)) - txq -= dev->real_num_tx_queues; - - return txq; -} - static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -1302,7 +1266,6 @@ static const struct net_device_ops virtnet_netdev = { .ndo_get_stats64 = virtnet_stats, .ndo_vlan_rx_add_vid = virtnet_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = virtnet_vlan_rx_kill_vid, - .ndo_select_queue = virtnet_select_queue, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = virtnet_netpoll, #endif @@ -1613,10 +1576,6 @@ static int virtnet_probe(struct virtio_device *vdev) if (vi->stats == NULL) goto free; - vi->vq_index = alloc_percpu(int); - if (vi->vq_index == NULL) - goto free_stats; - mutex_init(&vi->config_lock); vi->config_enable = true; INIT_WORK(&vi->config_work, virtnet_config_changed_work); @@ -1643,7 +1602,7 @@ static int virtnet_probe(struct virtio_device *vdev) /* Allocate/initialize the rx/tx queues, and invoke find_vqs */ err = init_vqs(vi); if (err) - goto free_index; + goto free_stats; netif_set_real_num_tx_queues(dev, 1); netif_set_real_num_rx_queues(dev, 1); @@ -1696,8 +1655,6 @@ free_vqs: virtnet_del_vqs(vi); if (vi->alloc_frag.page) put_page(vi->alloc_frag.page); -free_index: - free_percpu(vi->vq_index); free_stats: free_percpu(vi->stats); free: @@ -1736,7 +1693,6 @@ static void virtnet_remove(struct virtio_device *vdev) flush_work(&vi->config_work); - free_percpu(vi->vq_index); free_percpu(vi->stats); free_netdev(vi->dev); } |