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path: root/drivers/net/bonding/bond_sysfs.c
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Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
-rw-r--r--drivers/net/bonding/bond_sysfs.c74
1 files changed, 64 insertions, 10 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 6f49ca7e9b66..80c0c8c415ed 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -164,9 +164,7 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
printk(KERN_INFO DRV_NAME
": %s is being deleted...\n",
bond->dev->name);
- bond_deinit(bond->dev);
- bond_destroy_sysfs_entry(bond);
- unregister_netdevice(bond->dev);
+ bond_destroy(bond);
rtnl_unlock();
goto out;
}
@@ -260,17 +258,16 @@ static ssize_t bonding_store_slaves(struct device *d,
char command[IFNAMSIZ + 1] = { 0, };
char *ifname;
int i, res, found, ret = count;
+ u32 original_mtu;
struct slave *slave;
struct net_device *dev = NULL;
struct bonding *bond = to_bond(d);
/* Quick sanity check -- is the bond interface up? */
if (!(bond->dev->flags & IFF_UP)) {
- printk(KERN_ERR DRV_NAME
- ": %s: Unable to update slaves because interface is down.\n",
+ printk(KERN_WARNING DRV_NAME
+ ": %s: doing slave updates when interface is down.\n",
bond->dev->name);
- ret = -EPERM;
- goto out;
}
/* Note: We can't hold bond->lock here, as bond_create grabs it. */
@@ -327,6 +324,7 @@ static ssize_t bonding_store_slaves(struct device *d,
}
/* Set the slave's MTU to match the bond */
+ original_mtu = dev->mtu;
if (dev->mtu != bond->dev->mtu) {
if (dev->change_mtu) {
res = dev->change_mtu(dev,
@@ -341,6 +339,9 @@ static ssize_t bonding_store_slaves(struct device *d,
}
rtnl_lock();
res = bond_enslave(bond->dev, dev);
+ bond_for_each_slave(bond, slave, i)
+ if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0)
+ slave->original_mtu = original_mtu;
rtnl_unlock();
if (res) {
ret = res;
@@ -353,13 +354,17 @@ static ssize_t bonding_store_slaves(struct device *d,
bond_for_each_slave(bond, slave, i)
if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
dev = slave->dev;
+ original_mtu = slave->original_mtu;
break;
}
if (dev) {
printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n",
bond->dev->name, dev->name);
rtnl_lock();
- res = bond_release(bond->dev, dev);
+ if (bond->setup_by_slave)
+ res = bond_release_and_destroy(bond->dev, dev);
+ else
+ res = bond_release(bond->dev, dev);
rtnl_unlock();
if (res) {
ret = res;
@@ -367,9 +372,9 @@ static ssize_t bonding_store_slaves(struct device *d,
}
/* set the slave MTU to the default */
if (dev->change_mtu) {
- dev->change_mtu(dev, 1500);
+ dev->change_mtu(dev, original_mtu);
} else {
- dev->mtu = 1500;
+ dev->mtu = original_mtu;
}
}
else {
@@ -563,6 +568,54 @@ static ssize_t bonding_store_arp_validate(struct device *d,
static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate);
/*
+ * Show and store fail_over_mac. User only allowed to change the
+ * value when there are no slaves.
+ */
+static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct bonding *bond = to_bond(d);
+
+ return sprintf(buf, "%d\n", bond->params.fail_over_mac) + 1;
+}
+
+static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
+{
+ int new_value;
+ int ret = count;
+ struct bonding *bond = to_bond(d);
+
+ if (bond->slave_cnt != 0) {
+ printk(KERN_ERR DRV_NAME
+ ": %s: Can't alter fail_over_mac with slaves in bond.\n",
+ bond->dev->name);
+ ret = -EPERM;
+ goto out;
+ }
+
+ if (sscanf(buf, "%d", &new_value) != 1) {
+ printk(KERN_ERR DRV_NAME
+ ": %s: no fail_over_mac value specified.\n",
+ bond->dev->name);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if ((new_value == 0) || (new_value == 1)) {
+ bond->params.fail_over_mac = new_value;
+ printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %d.\n",
+ bond->dev->name, new_value);
+ } else {
+ printk(KERN_INFO DRV_NAME
+ ": %s: Ignoring invalid fail_over_mac value %d.\n",
+ bond->dev->name, new_value);
+ }
+out:
+ return ret;
+}
+
+static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
+
+/*
* Show and set the arp timer interval. There are two tricky bits
* here. First, if ARP monitoring is activated, then we must disable
* MII monitoring. Second, if the ARP timer isn't running, we must
@@ -1383,6 +1436,7 @@ static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
static struct attribute *per_bond_attrs[] = {
&dev_attr_slaves.attr,
&dev_attr_mode.attr,
+ &dev_attr_fail_over_mac.attr,
&dev_attr_arp_validate.attr,
&dev_attr_arp_interval.attr,
&dev_attr_arp_ip_target.attr,