diff options
author | Jiri Pirko <jiri@resnulli.us> | 2012-08-17 04:00:48 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2012-08-20 09:40:48 (GMT) |
commit | 1d76efe1577b4323609b1bcbfafa8b731eda071a (patch) | |
tree | ddf6fddeee02ad33f304dd5479f57208245a3f88 /drivers/net/team/team.c | |
parent | 4c6de2fedc321e17487b74547ad9f73f248faaac (diff) | |
download | linux-1d76efe1577b4323609b1bcbfafa8b731eda071a.tar.xz |
team: add support for non-ethernet devices
This is resolved by two things:
1) allow dev_addr of different length than ETH_ALEN
2) during port add, check for dev->type and change it if necessary
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/team/team.c')
-rw-r--r-- | drivers/net/team/team.c | 89 |
1 files changed, 67 insertions, 22 deletions
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index ba10c46..bc36d13 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -54,29 +54,29 @@ static struct team_port *team_port_get_rtnl(const struct net_device *dev) } /* - * Since the ability to change mac address for open port device is tested in + * Since the ability to change device address for open port device is tested in * team_port_add, this function can be called without control of return value */ -static int __set_port_mac(struct net_device *port_dev, - const unsigned char *dev_addr) +static int __set_port_dev_addr(struct net_device *port_dev, + const unsigned char *dev_addr) { struct sockaddr addr; - memcpy(addr.sa_data, dev_addr, ETH_ALEN); - addr.sa_family = ARPHRD_ETHER; + memcpy(addr.sa_data, dev_addr, port_dev->addr_len); + addr.sa_family = port_dev->type; return dev_set_mac_address(port_dev, &addr); } -static int team_port_set_orig_mac(struct team_port *port) +static int team_port_set_orig_dev_addr(struct team_port *port) { - return __set_port_mac(port->dev, port->orig.dev_addr); + return __set_port_dev_addr(port->dev, port->orig.dev_addr); } -int team_port_set_team_mac(struct team_port *port) +int team_port_set_team_dev_addr(struct team_port *port) { - return __set_port_mac(port->dev, port->team->dev->dev_addr); + return __set_port_dev_addr(port->dev, port->team->dev->dev_addr); } -EXPORT_SYMBOL(team_port_set_team_mac); +EXPORT_SYMBOL(team_port_set_team_dev_addr); static void team_refresh_port_linkup(struct team_port *port) { @@ -965,6 +965,8 @@ static struct netpoll_info *team_netpoll_info(struct team *team) #endif static void __team_port_change_check(struct team_port *port, bool linkup); +static int team_dev_type_check_change(struct net_device *dev, + struct net_device *port_dev); static int team_port_add(struct team *team, struct net_device *port_dev) { @@ -973,9 +975,8 @@ static int team_port_add(struct team *team, struct net_device *port_dev) char *portname = port_dev->name; int err; - if (port_dev->flags & IFF_LOOPBACK || - port_dev->type != ARPHRD_ETHER) { - netdev_err(dev, "Device %s is of an unsupported type\n", + if (port_dev->flags & IFF_LOOPBACK) { + netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", portname); return -EINVAL; } @@ -986,6 +987,10 @@ static int team_port_add(struct team *team, struct net_device *port_dev) return -EBUSY; } + err = team_dev_type_check_change(dev, port_dev); + if (err) + return err; + if (port_dev->flags & IFF_UP) { netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", portname); @@ -1008,7 +1013,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev) goto err_set_mtu; } - memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN); + memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); err = team_port_enter(team, port); if (err) { @@ -1089,7 +1094,7 @@ err_vids_add: err_dev_open: team_port_leave(team, port); - team_port_set_orig_mac(port); + team_port_set_orig_dev_addr(port); err_port_enter: dev_set_mtu(port_dev, port->orig.mtu); @@ -1126,7 +1131,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev) vlan_vids_del_by_dev(port_dev, dev); dev_close(port_dev); team_port_leave(team, port); - team_port_set_orig_mac(port); + team_port_set_orig_dev_addr(port); dev_set_mtu(port_dev, port->orig.mtu); synchronize_rcu(); kfree(port); @@ -1477,17 +1482,18 @@ static void team_set_rx_mode(struct net_device *dev) static int team_set_mac_address(struct net_device *dev, void *p) { + struct sockaddr *addr = p; struct team *team = netdev_priv(dev); struct team_port *port; - int err; - err = eth_mac_addr(dev, p); - if (err) - return err; + if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + dev->addr_assign_type &= ~NET_ADDR_RANDOM; rcu_read_lock(); list_for_each_entry_rcu(port, &team->port_list, list) - if (team->ops.port_change_mac) - team->ops.port_change_mac(team, port); + if (team->ops.port_change_dev_addr) + team->ops.port_change_dev_addr(team, port); rcu_read_unlock(); return 0; } @@ -1718,6 +1724,45 @@ static const struct net_device_ops team_netdev_ops = { * rt netlink interface ***********************/ +static void team_setup_by_port(struct net_device *dev, + struct net_device *port_dev) +{ + dev->header_ops = port_dev->header_ops; + dev->type = port_dev->type; + dev->hard_header_len = port_dev->hard_header_len; + dev->addr_len = port_dev->addr_len; + dev->mtu = port_dev->mtu; + memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); + memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); + dev->addr_assign_type &= ~NET_ADDR_RANDOM; +} + +static int team_dev_type_check_change(struct net_device *dev, + struct net_device *port_dev) +{ + struct team *team = netdev_priv(dev); + char *portname = port_dev->name; + int err; + + if (dev->type == port_dev->type) + return 0; + if (!list_empty(&team->port_list)) { + netdev_err(dev, "Device %s is of different type\n", portname); + return -EBUSY; + } + err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); + err = notifier_to_errno(err); + if (err) { + netdev_err(dev, "Refused to change device type\n"); + return err; + } + dev_uc_flush(dev); + dev_mc_flush(dev); + team_setup_by_port(dev, port_dev); + call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); + return 0; +} + static void team_setup(struct net_device *dev) { ether_setup(dev); |