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net: bonding, dummy, ifb, team: advertise NETIF_F_GSO_SOFTWARE 

Virtual netdevs should use NETIF_F_GSO_SOFTWARE to forward GSO skbs
as-is and let the final drivers deal with them when supported.
Also remove NETIF_F_GSO_UDP_L4 from bonding and team drivers as it's
now included in the "software" list.

Suggested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alexander Lobakin 2020-11-01 13:17:17 +00:00 коммит произвёл Jakub Kicinski
Родитель 2e4ef10f58
Коммит ecb8fed408
4 изменённых файлов: 11 добавлений и 14 удалений
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11
drivers/net/bonding/bond_main.c
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@ -1228,14 +1228,14 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
}
#define BOND_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | \
NETIF_F_HIGHDMA | NETIF_F_LRO)
#define BOND_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
NETIF_F_RXCSUM | NETIF_F_GSO_SOFTWARE)
#define BOND_MPLS_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_ALL_TSO)
NETIF_F_GSO_SOFTWARE)
static void bond_compute_features(struct bonding *bond)
@ -1291,8 +1291,7 @@ done:
bond_dev->vlan_features = vlan_features;
bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_STAG_TX |
NETIF_F_GSO_UDP_L4;
NETIF_F_HW_VLAN_STAG_TX;
#ifdef CONFIG_XFRM_OFFLOAD
bond_dev->hw_enc_features |= xfrm_features;
#endif /* CONFIG_XFRM_OFFLOAD */
@ -4721,7 +4720,7 @@ void bond_setup(struct net_device *bond_dev)
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
#ifdef CONFIG_XFRM_OFFLOAD
bond_dev->hw_features |= BOND_XFRM_FEATURES;
#endif /* CONFIG_XFRM_OFFLOAD */

2
drivers/net/dummy.c
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@ -124,7 +124,7 @@ static void dummy_setup(struct net_device *dev)
dev->flags &= ~IFF_MULTICAST;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_NO_QUEUE;
dev->features |= NETIF_F_SG | NETIF_F_FRAGLIST;
dev->features |= NETIF_F_ALL_TSO;
dev->features |= NETIF_F_GSO_SOFTWARE;
dev->features |= NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_LLTX;
dev->features |= NETIF_F_GSO_ENCAP_ALL;
dev->hw_features |= dev->features;

3
drivers/net/ifb.c
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@ -187,8 +187,7 @@ static const struct net_device_ops ifb_netdev_ops = {
};
#define IFB_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_FRAGLIST | \
NETIF_F_TSO_ECN | NETIF_F_TSO | NETIF_F_TSO6 | \
NETIF_F_GSO_ENCAP_ALL | \
NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ENCAP_ALL | \
NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX | \
NETIF_F_HW_VLAN_STAG_TX)

9
drivers/net/team/team.c
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@ -975,11 +975,11 @@ static void team_port_disable(struct team *team,
}
#define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | \
NETIF_F_HIGHDMA | NETIF_F_LRO)
#define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
NETIF_F_RXCSUM | NETIF_F_GSO_SOFTWARE)
static void __team_compute_features(struct team *team)
{
@ -1009,8 +1009,7 @@ static void __team_compute_features(struct team *team)
team->dev->vlan_features = vlan_features;
team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_STAG_TX |
NETIF_F_GSO_UDP_L4;
NETIF_F_HW_VLAN_STAG_TX;
team->dev->hard_header_len = max_hard_header_len;
team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
@ -2175,7 +2174,7 @@ static void team_setup(struct net_device *dev)
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
dev->features |= dev->hw_features;
dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
}