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| author | Jay Vosburgh <fubar@us.ibm.com> | 2008-11-03 18:16:50 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-03 18:16:50 -0800 |
| commit | 6cf3f41e6c08bca6641a695449791c38a25f35ff (patch) | |
| tree | a4e173960afe6712c112b3ddea1f229a695b7089 /include/linux | |
| parent | 24f8b2385e03a4f4c8dac513d03b5eaa475822b9 (diff) | |
| download | linux-6cf3f41e6c08bca6641a695449791c38a25f35ff.tar.gz linux-6cf3f41e6c08bca6641a695449791c38a25f35ff.tar.bz2 linux-6cf3f41e6c08bca6641a695449791c38a25f35ff.zip | |
bonding, net: Move last_rx update into bonding recv logic
The only user of the net_device->last_rx field is bonding.
This patch adds a conditional update of last_rx to the bonding special
logic in skb_bond_should_drop, causing last_rx to only be updated when
the ARP monitor is running.
This frees network device drivers from the necessity of
updating last_rx, which can have cache line thrash issues.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/if.h | 1 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 32 |
2 files changed, 19 insertions, 14 deletions
diff --git a/include/linux/if.h b/include/linux/if.h index 65246846c844..2a6e29620a96 100644 --- a/include/linux/if.h +++ b/include/linux/if.h @@ -65,6 +65,7 @@ #define IFF_BONDING 0x20 /* bonding master or slave */ #define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */ #define IFF_ISATAP 0x80 /* ISATAP interface (RFC4214) */ +#define IFF_MASTER_ARPMON 0x100 /* bonding master, ARP mon in use */ #define IF_GET_IFACE 0x0001 /* for querying only */ #define IF_GET_PROTO 0x0002 diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9d77b1d7dca8..f1b0dbe58464 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1742,22 +1742,26 @@ static inline int skb_bond_should_drop(struct sk_buff *skb) struct net_device *dev = skb->dev; struct net_device *master = dev->master; - if (master && - (dev->priv_flags & IFF_SLAVE_INACTIVE)) { - if ((dev->priv_flags & IFF_SLAVE_NEEDARP) && - skb->protocol == __constant_htons(ETH_P_ARP)) - return 0; - - if (master->priv_flags & IFF_MASTER_ALB) { - if (skb->pkt_type != PACKET_BROADCAST && - skb->pkt_type != PACKET_MULTICAST) + if (master) { + if (master->priv_flags & IFF_MASTER_ARPMON) + dev->last_rx = jiffies; + + if (dev->priv_flags & IFF_SLAVE_INACTIVE) { + if ((dev->priv_flags & IFF_SLAVE_NEEDARP) && + skb->protocol == __constant_htons(ETH_P_ARP)) return 0; - } - if (master->priv_flags & IFF_MASTER_8023AD && - skb->protocol == __constant_htons(ETH_P_SLOW)) - return 0; - return 1; + if (master->priv_flags & IFF_MASTER_ALB) { + if (skb->pkt_type != PACKET_BROADCAST && + skb->pkt_type != PACKET_MULTICAST) + return 0; + } + if (master->priv_flags & IFF_MASTER_8023AD && + skb->protocol == __constant_htons(ETH_P_SLOW)) + return 0; + + return 1; + } } return 0; } |