diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-05-05 19:51:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-06 12:07:56 +0100 |
| commit | 6df6398f7c8b481ce83f28143bc08a5231616deb (patch) | |
| tree | 5e61db4831d6b8a01f40a5e30e81b91429c9236e /net | |
| parent | beb21e3e8e261fc9f11050af17efe6de183b33d3 (diff) | |
net: add netif_inherit_tso_max()
To make later patches smaller create a helper for inheriting
the TSO limitations of a lower device. The TSO in the name
is not an accident, subsequent patches will replace GSO
with TSO in more names.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/8021q/vlan.c | 3 | ||||
| -rw-r--r-- | net/8021q/vlan_dev.c | 3 | ||||
| -rw-r--r-- | net/core/dev.c | 12 |
3 files changed, 14 insertions, 4 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 788076b002b3..e40aa3e3641c 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 e5d23e75572a..839f2020b015 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 c2d73595a7c3..eef1d19b130f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2993,6 +2993,18 @@ undo_rx: 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 * * Default value is the number of physical cores if there are only 1 or 2, or |