diff options
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 | |
parent | 24f8b2385e03a4f4c8dac513d03b5eaa475822b9 (diff) | |
download | linux-3.10-6cf3f41e6c08bca6641a695449791c38a25f35ff.tar.gz linux-3.10-6cf3f41e6c08bca6641a695449791c38a25f35ff.tar.bz2 linux-3.10-6cf3f41e6c08bca6641a695449791c38a25f35ff.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>
-rw-r--r-- | drivers/net/bonding/bond_main.c | 2 | ||||
-rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 3 | ||||
-rw-r--r-- | include/linux/if.h | 1 | ||||
-rw-r--r-- | include/linux/netdevice.h | 32 |
4 files changed, 24 insertions, 14 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 56c823c175f..39575d76497 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4564,6 +4564,8 @@ static int bond_init(struct net_device *bond_dev, struct bond_params *params) bond_dev->tx_queue_len = 0; bond_dev->flags |= IFF_MASTER|IFF_MULTICAST; bond_dev->priv_flags |= IFF_BONDING; + if (bond->params.arp_interval) + bond_dev->priv_flags |= IFF_MASTER_ARPMON; /* At first, we block adding VLANs. That's the only way to * prevent problems that occur when adding VLANs over an diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 296a865b75d..e400d7dfdfc 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -620,6 +620,8 @@ static ssize_t bonding_store_arp_interval(struct device *d, ": %s: Setting ARP monitoring interval to %d.\n", bond->dev->name, new_value); bond->params.arp_interval = new_value; + if (bond->params.arp_interval) + bond->dev->priv_flags |= IFF_MASTER_ARPMON; if (bond->params.miimon) { printk(KERN_INFO DRV_NAME ": %s: ARP monitoring cannot be used with MII monitoring. " @@ -1039,6 +1041,7 @@ static ssize_t bonding_store_miimon(struct device *d, "ARP monitoring. Disabling ARP monitoring...\n", bond->dev->name); bond->params.arp_interval = 0; + bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; if (bond->params.arp_validate) { bond_unregister_arp(bond); bond->params.arp_validate = diff --git a/include/linux/if.h b/include/linux/if.h index 65246846c84..2a6e29620a9 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 9d77b1d7dca..f1b0dbe5846 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; } |