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| author |   Pravin B Shelar <pshelar@nicira.com> | 2013-03-07 09:28:01 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-03-09 16:08:57 -0500 |
| commit | ec5f061564238892005257c83565a0b58ec79295 (patch) | |
| tree | 1ea3987010c27985a3edb7af66e1d143b2cefc77 /include | |
| parent | ipv6: report sin6_scope_id if sockopt RECVORIGDSTADDR is set (diff) | |
| download | linux-dev-ec5f061564238892005257c83565a0b58ec79295.tar.xz linux-dev-ec5f061564238892005257c83565a0b58ec79295.zip | |
net: Kill link between CSUM and SG features.
Earlier SG was unset if CSUM was not available for given device to
force skb copy to avoid sending inconsistent csum.
Commit c9af6db4c11c (net: Fix possible wrong checksum generation)
added explicit flag to force copy to fix this issue. Therefore
there is no need to link SG and CSUM, following patch kills this
link between there two features.
This patch is also required following patch in series.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 896eb4985f97..e1ebeffa6b35 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2683,6 +2683,19 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features) { return __skb_gso_segment(skb, features, true); } +__be16 skb_network_protocol(struct sk_buff *skb); + +static inline bool can_checksum_protocol(netdev_features_t features, + __be16 protocol) +{ + return ((features & NETIF_F_GEN_CSUM) || + ((features & NETIF_F_V4_CSUM) && + protocol == htons(ETH_P_IP)) || + ((features & NETIF_F_V6_CSUM) && + protocol == htons(ETH_P_IPV6)) || + ((features & NETIF_F_FCOE_CRC) && + protocol == htons(ETH_P_FCOE))); +} #ifdef CONFIG_BUG extern void netdev_rx_csum_fault(struct net_device *dev); |