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bonding: reread information about speed and duplex when interface goes up

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When an interface was enslaved when it was down, bonding thinks
it has speed -1 even after it goes up. This leads into selecting
a wrong active interface in active/backup mode on mixed 10G/1G or
1G/100M environment.

before:
 bonding: bond0: link status definitely up for interface eth5, 100 Mbps full duplex.
 bonding: bond0: link status definitely up for interface eth0, 100 Mbps full duplex.

after:
 bonding: bond0: link status definitely up for interface eth5, 10000 Mbps full duplex.
 bonding: bond0: link status definitely up for interface eth0, 1000 Mbps full duplex.

Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Krzysztof Piotr Oledzki 2010-10-06 14:28:22 -07:00 committed by David S. Miller
parent 700c2a779e
commit 546add7946
1 changed files with 2 additions and 0 deletions
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2
drivers/net/bonding/bond_main.c
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@ -2406,6 +2406,8 @@ static void bond_miimon_commit(struct bonding *bond)
slave->state = BOND_STATE_BACKUP;
}
bond_update_speed_duplex(slave);
pr_info("%s: link status definitely up for interface %s, %d Mbps %s duplex.\n",
bond->dev->name, slave->dev->name,
slave->speed, slave->duplex ? "full" : "half");