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net/bonding: Handlle wrong assumptions that slave is always an Ethernet device 

bonding sometimes uses Ethernet constants (such as MTU and address length) which
are not good when it enslaves non Ethernet devices (such as InfiniBand).

Signed-off-by: Moni Shoua <monis at voltaire.com>
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Moni Shoua 2007-10-09 19:43:41 -07:00 committed by Jeff Garzik
parent 6b1bf09650
commit 3158bf7d41
3 changed files with 11 additions and 3 deletions
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3
drivers/net/bonding/bond_main.c
View File

@ -1225,7 +1225,8 @@ static int bond_compute_features(struct bonding *bond)
struct slave *slave;
struct net_device *bond_dev = bond->dev;
unsigned long features = bond_dev->features;
unsigned short max_hard_header_len = ETH_HLEN;
unsigned short max_hard_header_len = max((u16)ETH_HLEN,
bond_dev->hard_header_len);
int i;
features &= ~(NETIF_F_ALL_CSUM | BOND_VLAN_FEATURES);

10
drivers/net/bonding/bond_sysfs.c
View File

@ -260,6 +260,7 @@ 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);
@ -325,6 +326,7 @@ 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,
@ -339,6 +341,9 @@ 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;
@ -351,6 +356,7 @@ 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) {
@ -365,9 +371,9 @@ 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 {

1
drivers/net/bonding/bonding.h
View File

@ -156,6 +156,7 @@ struct slave {
s8 link; /* one of BOND_LINK_XXXX */
s8 state; /* one of BOND_STATE_XXXX */
u32 original_flags;
u32 original_mtu;
u32 link_failure_count;
u16 speed;
u8 duplex;