Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

bonding: start slaves with link down for ARP monitor 

Initialize slave device link state as down if ARP monitor is
active and net_carrier_ok() returns zero. Also shift initial
value of its last_arp_tx so that it doesn't immediately cause
fake detection of "up" state.

When ARP monitoring is used, initializing the slave device with
up link state can cause ARP monitor to detect link failure
before the device is really up (with igb driver, this can take
more than two seconds).

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kubeček 2012-04-17 02:02:06 +00:00 committed by David S. Miller
parent bf1ac5ca6f
commit f31c7937c2
1 changed files with 21 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/net/bonding/bond_main.c
View File

@ -1726,7 +1726,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
read_lock(&bond->lock);
new_slave->last_arp_rx = jiffies;
new_slave->last_arp_rx = jiffies -
(msecs_to_jiffies(bond->params.arp_interval) + 1);
if (bond->params.miimon && !bond->params.use_carrier) {
link_reporting = bond_check_dev_link(bond, slave_dev, 1);
@ -1751,22 +1752,30 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
}
/* check for initial state */
if (!bond->params.miimon ||
(bond_check_dev_link(bond, slave_dev, 0) == BMSR_LSTATUS)) {
if (bond->params.updelay) {
pr_debug("Initial state of slave_dev is BOND_LINK_BACK\n");
new_slave->link = BOND_LINK_BACK;
new_slave->delay = bond->params.updelay;
if (bond->params.miimon) {
if (bond_check_dev_link(bond, slave_dev, 0) == BMSR_LSTATUS) {
if (bond->params.updelay) {
new_slave->link = BOND_LINK_BACK;
new_slave->delay = bond->params.updelay;
} else {
new_slave->link = BOND_LINK_UP;
}
} else {
pr_debug("Initial state of slave_dev is BOND_LINK_UP\n");
new_slave->link = BOND_LINK_UP;
new_slave->link = BOND_LINK_DOWN;
}
new_slave->jiffies = jiffies;
} else if (bond->params.arp_interval) {
new_slave->link = (netif_carrier_ok(slave_dev) ?
BOND_LINK_UP : BOND_LINK_DOWN);
} else {
pr_debug("Initial state of slave_dev is BOND_LINK_DOWN\n");
new_slave->link = BOND_LINK_DOWN;
new_slave->link = BOND_LINK_UP;
}
if (new_slave->link != BOND_LINK_DOWN)
new_slave->jiffies = jiffies;
pr_debug("Initial state of slave_dev is BOND_LINK_%s\n",
new_slave->link == BOND_LINK_DOWN ? "DOWN" :
(new_slave->link == BOND_LINK_UP ? "UP" : "BACK"));
bond_update_speed_duplex(new_slave);
if (USES_PRIMARY(bond->params.mode) && bond->params.primary[0]) {