diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index ba3fa7eac98dcee22eb097a9bf72de340664a79b..790e1d5e4b4a0d2d3b219e0b498bad3874d71e44 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -286,8 +286,7 @@ nfp_repr_transfer_features(struct net_device *netdev, struct net_device *lower) if (repr->dst->u.port_info.lower_dev != lower) return; - netif_set_gso_max_size(netdev, lower->gso_max_size); - netif_set_gso_max_segs(netdev, lower->gso_max_segs); + netif_inherit_tso_max(netdev, lower); netdev_update_features(netdev); } diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 696e245f6d009d4d5d4a9c3523e4aa1e5d0f8bb6..aa28a29e228c0f3337b6c32d89d525e55a2c2021 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -139,8 +139,7 @@ static int ipvlan_init(struct net_device *dev) dev->vlan_features = phy_dev->vlan_features & IPVLAN_FEATURES; dev->vlan_features |= IPVLAN_ALWAYS_ON_OFLOADS; dev->hw_enc_features |= dev->features; - netif_set_gso_max_size(dev, phy_dev->gso_max_size); - netif_set_gso_max_segs(dev, phy_dev->gso_max_segs); + netif_inherit_tso_max(dev, phy_dev); dev->hard_header_len = phy_dev->hard_header_len; netdev_lockdep_set_classes(dev); @@ -762,8 +761,7 @@ static int ipvlan_device_event(struct notifier_block *unused, case NETDEV_FEAT_CHANGE: list_for_each_entry(ipvlan, &port->ipvlans, pnode) { - netif_set_gso_max_size(ipvlan->dev, dev->gso_max_size); - netif_set_gso_max_segs(ipvlan->dev, dev->gso_max_segs); + netif_inherit_tso_max(ipvlan->dev, dev); netdev_update_features(ipvlan->dev); } break; diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index b00bc8173abea8478954adc5d632e10cb8da7aef..0017bd0fe3bb06d3a6486b7e8eaaef76bd978b6f 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -904,8 +904,7 @@ static int macvlan_init(struct net_device *dev) dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES; dev->vlan_features |= ALWAYS_ON_OFFLOADS; dev->hw_enc_features |= dev->features; - netif_set_gso_max_size(dev, lowerdev->gso_max_size); - netif_set_gso_max_segs(dev, lowerdev->gso_max_segs); + netif_inherit_tso_max(dev, lowerdev); dev->hard_header_len = lowerdev->hard_header_len; macvlan_set_lockdep_class(dev); @@ -1763,8 +1762,7 @@ static int macvlan_device_event(struct notifier_block *unused, break; case NETDEV_FEAT_CHANGE: list_for_each_entry(vlan, &port->vlans, list) { - netif_set_gso_max_size(vlan->dev, dev->gso_max_size); - netif_set_gso_max_segs(vlan->dev, dev->gso_max_segs); + netif_inherit_tso_max(vlan->dev, dev); netdev_update_features(vlan->dev); } break; diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 3592014e50cc3169199f39dc43c195c9af38fb39..f474e79a774580e4cb67da44b5f0c796c3ce8abb 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1758,8 +1758,7 @@ static int veth_newlink(struct net *src_net, struct net_device *dev, if (ifmp && (dev->ifindex != 0)) peer->ifindex = ifmp->ifi_index; - netif_set_gso_max_size(peer, dev->gso_max_size); - netif_set_gso_max_segs(peer, dev->gso_max_segs); + netif_inherit_tso_max(peer, dev); err = register_netdevice(peer); put_net(net); diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 8a5e3a6d32d7ce0dec79e3061f6d356d014f47cf..2bda692f70c54b640e630ab27149cc97eca94883 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -3683,8 +3683,7 @@ static void vxlan_config_apply(struct net_device *dev, if (lowerdev) { dst->remote_ifindex = conf->remote_ifindex; - netif_set_gso_max_size(dev, lowerdev->gso_max_size); - netif_set_gso_max_segs(dev, lowerdev->gso_max_segs); + netif_inherit_tso_max(dev, lowerdev); needed_headroom = lowerdev->hard_header_len; needed_headroom += lowerdev->needed_headroom; diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index eaf66e57d89142a66dc001c4d2432f6a6f93c5fd..006bb5c0e4130c61a6838aa6c302cdb10951d81b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -4895,6 +4895,9 @@ static inline void netif_set_gro_max_size(struct net_device *dev, WRITE_ONCE(dev->gro_max_size, size); } +void netif_inherit_tso_max(struct net_device *to, + const struct net_device *from); + static inline void skb_gso_error_unwind(struct sk_buff *skb, __be16 protocol, int pulled_hlen, u16 mac_offset, int mac_len) diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 788076b002b3b5198c9f4c21a0ad4d940e172592..e40aa3e3641cbf0f5ab4fdd3e374ba9d1ef5a82d 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -319,8 +319,7 @@ static void vlan_transfer_features(struct net_device *dev, { struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev); - netif_set_gso_max_size(vlandev, dev->gso_max_size); - netif_set_gso_max_segs(vlandev, dev->gso_max_segs); + netif_inherit_tso_max(vlandev, dev); if (vlan_hw_offload_capable(dev->features, vlan->vlan_proto)) vlandev->hard_header_len = dev->hard_header_len; diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index e5d23e75572a0e59a3559d467958cdd809c0cdd9..839f2020b015ecaed897bd6672d85b187f982765 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -573,8 +573,7 @@ static int vlan_dev_init(struct net_device *dev) NETIF_F_ALL_FCOE; dev->features |= dev->hw_features | NETIF_F_LLTX; - netif_set_gso_max_size(dev, real_dev->gso_max_size); - netif_set_gso_max_segs(dev, real_dev->gso_max_segs); + netif_inherit_tso_max(dev, real_dev); if (dev->features & NETIF_F_VLAN_FEATURES) netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n"); diff --git a/net/core/dev.c b/net/core/dev.c index c2d73595a7c369995c1f75afbddefc32c2d7283c..eef1d19b130fd31fb72bc0f972c0910461dd1b0a 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2992,6 +2992,18 @@ int netif_set_real_num_queues(struct net_device *dev, } EXPORT_SYMBOL(netif_set_real_num_queues); +/** + * netif_inherit_tso_max() - copy all TSO limits from a lower device to an upper + * @to: netdev to update + * @from: netdev from which to copy the limits + */ +void netif_inherit_tso_max(struct net_device *to, const struct net_device *from) +{ + netif_set_gso_max_size(to, from->gso_max_size); + netif_set_gso_max_segs(to, from->gso_max_segs); +} +EXPORT_SYMBOL(netif_inherit_tso_max); + /** * netif_get_num_default_rss_queues - default number of RSS queues *