diff options
| -rw-r--r-- | Documentation/networking/bonding.txt | 11 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 42 | ||||
| -rw-r--r-- | drivers/net/bonding/bonding.h | 4 |
3 files changed, 35 insertions, 22 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index 8e6b8d3c741..370b7da73ab 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -539,6 +539,17 @@ mode swapped with the new curr_active_slave that was chosen. +num_grat_arp + + Specifies the number of gratuitous ARPs to be issued after a + failover event. One gratuitous ARP is issued immediately after + the failover, subsequent ARPs are sent at a rate of one per link + monitor interval (arp_interval or miimon, whichever is active). + + The valid range is 0 - 255; the default value is 1. This option + affects only the active-backup mode. This option was added for + bonding version 3.3.0. + primary A string (eth0, eth2, etc) specifying which slave is the diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 925402bcdf4..3b6d66a8ab9 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1195,14 +1195,7 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active) old_active); bond->send_grat_arp = bond->params.num_grat_arp; - if (!test_bit(__LINK_STATE_LINKWATCH_PENDING, - &bond->curr_active_slave->dev->state)) { - bond_send_gratuitous_arp(bond); - bond->send_grat_arp--; - } else { - dprintk("delaying gratuitous arp on %s\n", - bond->curr_active_slave->dev->name); - } + bond_send_gratuitous_arp(bond); write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); @@ -2241,17 +2234,6 @@ static int __bond_mii_monitor(struct bonding *bond, int have_locks) * program could monitor the link itself if needed. */ - if (bond->send_grat_arp) { - if (bond->curr_active_slave && test_bit(__LINK_STATE_LINKWATCH_PENDING, - &bond->curr_active_slave->dev->state)) - dprintk("Needs to send gratuitous arp but not yet\n"); - else { - dprintk("sending delayed gratuitous arp on on %s\n", - bond->curr_active_slave->dev->name); - bond_send_gratuitous_arp(bond); - bond->send_grat_arp--; - } - } read_lock(&bond->curr_slave_lock); oldcurrent = bond->curr_active_slave; read_unlock(&bond->curr_slave_lock); @@ -2492,6 +2474,13 @@ void bond_mii_monitor(struct work_struct *work) read_unlock(&bond->lock); return; } + + if (bond->send_grat_arp) { + read_lock(&bond->curr_slave_lock); + bond_send_gratuitous_arp(bond); + read_unlock(&bond->curr_slave_lock); + } + if (__bond_mii_monitor(bond, 0)) { read_unlock(&bond->lock); rtnl_lock(); @@ -2657,6 +2646,8 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave) /* * Kick out a gratuitous ARP for an IP on the bonding master plus one * for each VLAN above us. + * + * Caller must hold curr_slave_lock for read or better */ static void bond_send_gratuitous_arp(struct bonding *bond) { @@ -2666,9 +2657,13 @@ static void bond_send_gratuitous_arp(struct bonding *bond) dprintk("bond_send_grat_arp: bond %s slave %s\n", bond->dev->name, slave ? slave->dev->name : "NULL"); - if (!slave) + + if (!slave || !bond->send_grat_arp || + test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state)) return; + bond->send_grat_arp--; + if (bond->master_ip) { bond_arp_send(slave->dev, ARPOP_REPLY, bond->master_ip, bond->master_ip, 0); @@ -3172,6 +3167,12 @@ void bond_activebackup_arp_mon(struct work_struct *work) if (bond->slave_cnt == 0) goto re_arm; + if (bond->send_grat_arp) { + read_lock(&bond->curr_slave_lock); + bond_send_gratuitous_arp(bond); + read_unlock(&bond->curr_slave_lock); + } + if (bond_ab_arp_inspect(bond, delta_in_ticks)) { read_unlock(&bond->lock); rtnl_lock(); @@ -3846,6 +3847,7 @@ static int bond_close(struct net_device *bond_dev) write_lock_bh(&bond->lock); + bond->send_grat_arp = 0; /* signal timers not to re-arm */ bond->kill_timers = 1; diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 89fd9963db7..fb730ec0396 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -22,8 +22,8 @@ #include "bond_3ad.h" #include "bond_alb.h" -#define DRV_VERSION "3.2.5" -#define DRV_RELDATE "March 21, 2008" +#define DRV_VERSION "3.3.0" +#define DRV_RELDATE "June 10, 2008" #define DRV_NAME "bonding" #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" |