[PATCH net] vlan: propagate gso_max_segs
From: Eric Dumazet <hidden>
Date: 2016-03-17 04:59:50
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eric Dumazet <edumazet@google.com> vlan drivers lack proper propagation of gso_max_segs from lower device. Signed-off-by: Eric Dumazet <edumazet@google.com> --- drivers/net/ipvlan/ipvlan_main.c | 2 ++ drivers/net/macvlan.c | 2 ++ net/8021q/vlan.c | 1 + net/8021q/vlan_dev.c | 1 + 4 files changed, 6 insertions(+)
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 5802b90..57941d3 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c@@ -119,6 +119,7 @@ static int ipvlan_init(struct net_device *dev) dev->features = phy_dev->features & IPVLAN_FEATURES; dev->features |= NETIF_F_LLTX; dev->gso_max_size = phy_dev->gso_max_size; + dev->gso_max_segs = phy_dev->gso_max_segs; dev->hard_header_len = phy_dev->hard_header_len; ipvlan_set_lockdep_class(dev);
@@ -592,6 +593,7 @@ static int ipvlan_device_event(struct notifier_block *unused, list_for_each_entry(ipvlan, &port->ipvlans, pnode) { ipvlan->dev->features = dev->features & IPVLAN_FEATURES; ipvlan->dev->gso_max_size = dev->gso_max_size; + ipvlan->dev->gso_max_segs = dev->gso_max_segs; netdev_features_change(ipvlan->dev); } break;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 6e953e3..2bcf1f3 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c@@ -803,6 +803,7 @@ static int macvlan_init(struct net_device *dev) dev->hw_features |= NETIF_F_LRO; dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES; dev->gso_max_size = lowerdev->gso_max_size; + dev->gso_max_segs = lowerdev->gso_max_segs; dev->hard_header_len = lowerdev->hard_header_len; macvlan_set_lockdep_class(dev);
@@ -1532,6 +1533,7 @@ static int macvlan_device_event(struct notifier_block *unused, case NETDEV_FEAT_CHANGE: list_for_each_entry(vlan, &port->vlans, list) { vlan->dev->gso_max_size = dev->gso_max_size; + vlan->dev->gso_max_segs = dev->gso_max_segs; netdev_update_features(vlan->dev); } break;
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 69929c0..a1e273a 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c@@ -311,6 +311,7 @@ static void vlan_transfer_features(struct net_device *dev, struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev); vlandev->gso_max_size = dev->gso_max_size; + vlandev->gso_max_segs = dev->gso_max_segs; 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 e416a40..e7e6257 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c@@ -551,6 +551,7 @@ static int vlan_dev_init(struct net_device *dev) dev->features |= real_dev->vlan_features | NETIF_F_LLTX | NETIF_F_GSO_SOFTWARE; dev->gso_max_size = real_dev->gso_max_size; + dev->gso_max_segs = real_dev->gso_max_segs; 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");