search for: virtnet_get_phys_port_nam

...onst struct net_device_ops virtnet_netdev = { > .ndo_open = virtnet_open, > .ndo_stop = virtnet_close, > @@ -2600,6 +2623,7 @@ static const struct net_device_ops virtnet_netdev = { > .ndo_features_check = passthru_features_check, > .ndo_get_phys_port_name = virtnet_get_phys_port_name, > .ndo_set_features = virtnet_set_features, > + .ndo_tx_timeout = virtnet_tx_timeout, > }; > > static void virtnet_config_changed_work(struct work_struct *work) > @@ -3018,6 +3042,9 @@ static int virtnet_probe(struct virtio_device *vdev) > dev->netdev_ops = &v...

...onst struct net_device_ops virtnet_netdev = { > .ndo_open = virtnet_open, > .ndo_stop = virtnet_close, > @@ -2600,6 +2623,7 @@ static const struct net_device_ops virtnet_netdev = { > .ndo_features_check = passthru_features_check, > .ndo_get_phys_port_name = virtnet_get_phys_port_name, > .ndo_set_features = virtnet_set_features, > + .ndo_tx_timeout = virtnet_tx_timeout, > }; > > static void virtnet_config_changed_work(struct work_struct *work) > @@ -3018,6 +3042,9 @@ static int virtnet_probe(struct virtio_device *vdev) > dev->netdev_ops = &v...

...scatterlist sg; + if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) + return -EOPNOTSUPP; + addr = kmemdup(p, sizeof(*addr), GFP_KERNEL); if (!addr) return -ENOMEM; @@ -2306,6 +2315,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } +static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, + size_t len) +{ + struct virtnet_info *vi = netdev_priv(dev); + int ret; + + if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) + return -EOPNOTSUPP; + + ret = snprintf(buf, len, "sby"); + if (ret >= len) + return -EOPNOTSUPP; +...

...9,9 @@ struct virtnet_info { u32 speed; unsigned long guest_offloads; + + /* failover when STANDBY feature enabled */ + struct failover *failover; }; struct padded_vnet_hdr { @@ -2275,6 +2281,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } +static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, + size_t len) +{ + struct virtnet_info *vi = netdev_priv(dev); + int ret; + + if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) + return -EOPNOTSUPP; + + ret = snprintf(buf, len, "_sby"); + if (ret >= len) + return -EOPNOTSUPP; +...

From: Julio Faracco <jcfaracco at gmail.com> Driver virtio_net is not handling error events for TX provided by dev_watchdog. This event is reached when transmission queue is having problems to transmit packets. To enable it, driver should have .ndo_tx_timeout implemented. This serie has two commits: In the past, we implemented a function to recover driver state when this kind of event

From: Julio Faracco <jcfaracco at gmail.com> Driver virtio_net is not handling error events for TX provided by dev_watchdog. This event is reached when transmission queue is having problems to transmit packets. To enable it, driver should have .ndo_tx_timeout implemented. This serie has two commits: In the past, we implemented a function to recover driver state when this kind of event

...scatterlist sg; + if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) + return -EOPNOTSUPP; + addr = kmemdup(p, sizeof(*addr), GFP_KERNEL); if (!addr) return -ENOMEM; @@ -2306,6 +2315,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } +static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, + size_t len) +{ + struct virtnet_info *vi = netdev_priv(dev); + int ret; + + if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) + return -EOPNOTSUPP; + + ret = snprintf(buf, len, "sby"); + if (ret >= len) + return -EOPNOTSUPP; +...

...set_work); +} + static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -2593,6 +2627,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_features_check = passthru_features_check, .ndo_get_phys_port_name = virtnet_get_phys_port_name, .ndo_set_features = virtnet_set_features, + .ndo_tx_timeout = virtnet_tx_timeout, }; static void virtnet_config_changed_work(struct work_struct *work) @@ -2982,6 +3017,62 @@ static int virtnet_validate(struct virtio_device *vdev) return 0; } +static void _remove_vq_common(struct virtn...

...set_work); +} + static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -2593,6 +2627,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_features_check = passthru_features_check, .ndo_get_phys_port_name = virtnet_get_phys_port_name, .ndo_set_features = virtnet_set_features, + .ndo_tx_timeout = virtnet_tx_timeout, }; static void virtnet_config_changed_work(struct work_struct *work) @@ -2982,6 +3017,62 @@ static int virtnet_validate(struct virtio_device *vdev) return 0; } +static void _remove_vq_common(struct virtn...

...ors++; + } +} + static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -2600,6 +2623,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_features_check = passthru_features_check, .ndo_get_phys_port_name = virtnet_get_phys_port_name, .ndo_set_features = virtnet_set_features, + .ndo_tx_timeout = virtnet_tx_timeout, }; static void virtnet_config_changed_work(struct work_struct *work) @@ -3018,6 +3042,9 @@ static int virtnet_probe(struct virtio_device *vdev) dev->netdev_ops = &virtnet_netdev; dev->features =...

...t; > .ndo_open = virtnet_open, > > .ndo_stop = virtnet_close, > > @@ -2600,6 +2623,7 @@ static const struct net_device_ops virtnet_netdev = { > > .ndo_features_check = passthru_features_check, > > .ndo_get_phys_port_name = virtnet_get_phys_port_name, > > .ndo_set_features = virtnet_set_features, > > + .ndo_tx_timeout = virtnet_tx_timeout, > > }; > > > > static void virtnet_config_changed_work(struct work_struct *work) > > @@ -3018,6 +3042,9 @@ static int virtnet_probe(struct virtio...

...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 int virtnet_get_phys_port_name(struct net_device *dev, char *buf, > size_t len) > { > @@ -1317,7 +1280,6 @@ 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_vl...

...set_work); +} + static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -2593,6 +2615,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_features_check = passthru_features_check, .ndo_get_phys_port_name = virtnet_get_phys_port_name, .ndo_set_features = virtnet_set_features, + .ndo_tx_timeout = virtnet_tx_timeout, }; static void virtnet_config_changed_work(struct work_struct *work) @@ -2982,6 +3005,62 @@ static int virtnet_validate(struct virtio_device *vdev) return 0; } +static void _remove_vq_common(struc...

...set_work); +} + static const struct net_device_ops virtnet_netdev = { .ndo_open = virtnet_open, .ndo_stop = virtnet_close, @@ -2593,6 +2627,7 @@ static const struct net_device_ops virtnet_netdev = { .ndo_features_check = passthru_features_check, .ndo_get_phys_port_name = virtnet_get_phys_port_name, .ndo_set_features = virtnet_set_features, + .ndo_tx_timeout = virtnet_tx_timeout, }; static void virtnet_config_changed_work(struct work_struct *work) @@ -2982,6 +3017,62 @@ static int virtnet_validate(struct virtio_device *vdev) return 0; } +static void _remove_vq_common(struct virtn...

...fo { u32 speed; unsigned long guest_offloads; + + /* upper netdev created when BACKUP feature enabled */ + struct net_device __rcu *bypass_netdev; }; struct padded_vnet_hdr { @@ -2275,6 +2281,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } +static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, + size_t len) +{ + struct virtnet_info *vi = netdev_priv(dev); + int ret; + + if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_BACKUP)) + return -EOPNOTSUPP; + + ret = snprintf(buf, len, "_bkup"); + if (ret >= len) + return -EOPNOTSUPP; +...

...onst struct net_device_ops virtnet_netdev = { > .ndo_open = virtnet_open, > .ndo_stop = virtnet_close, > @@ -2593,6 +2627,7 @@ static const struct net_device_ops virtnet_netdev = { > .ndo_features_check = passthru_features_check, > .ndo_get_phys_port_name = virtnet_get_phys_port_name, > .ndo_set_features = virtnet_set_features, > + .ndo_tx_timeout = virtnet_tx_timeout, > }; > > static void virtnet_config_changed_work(struct work_struct *work) > @@ -2982,6 +3017,62 @@ static int virtnet_validate(struct virtio_device *vdev) > return 0; > } >...

...floads; >+ >+ /* upper netdev created when BACKUP feature enabled */ >+ struct net_device __rcu *bypass_netdev; > }; > > struct padded_vnet_hdr { >@@ -2275,6 +2281,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) > } > } > >+static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, >+ size_t len) >+{ >+ struct virtnet_info *vi = netdev_priv(dev); >+ int ret; >+ >+ if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_BACKUP)) >+ return -EOPNOTSUPP; >+ >+ ret = snprintf(buf, len, "_bkup"); >+ if...

...floads; >+ >+ /* upper netdev created when BACKUP feature enabled */ >+ struct net_device __rcu *bypass_netdev; > }; > > struct padded_vnet_hdr { >@@ -2275,6 +2281,22 @@ static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp) > } > } > >+static int virtnet_get_phys_port_name(struct net_device *dev, char *buf, >+ size_t len) >+{ >+ struct virtnet_info *vi = netdev_priv(dev); >+ int ret; >+ >+ if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_BACKUP)) >+ return -EOPNOTSUPP; >+ >+ ret = snprintf(buf, len, "_bkup"); >+ if...

The main motivation for this patch is to enable cloud service providers to provide an accelerated datapath to virtio-net enabled VMs in a transparent manner with no/minimal guest userspace changes. This also enables hypervisor controlled live migration to be supported with VMs that have direct attached SR-IOV VF devices. Patch 1 introduces a new feature bit VIRTIO_NET_F_BACKUP that can be used

This is another update based on feedback from MST and Stephen on the last patchset. Hopefully this series can be integrated and any further enhancements can be made on top of this patchset. v8: - Made the failover managment routines more robust by updating the feature bits/other fields in the failover netdev when slave netdevs are registered/unregistered. (mst) - added support for handling