diff options
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r-- | drivers/net/bonding/bond_main.c | 91 |
1 files changed, 52 insertions, 39 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 333387f1f1fe..ee610721098e 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -77,7 +77,6 @@ #include <net/pkt_sched.h> #include <linux/rculist.h> #include <net/flow_dissector.h> -#include <net/switchdev.h> #include <net/bonding.h> #include <net/bond_3ad.h> #include <net/bond_alb.h> @@ -609,14 +608,21 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active, * * Should be called with RTNL held. */ -static void bond_set_dev_addr(struct net_device *bond_dev, - struct net_device *slave_dev) +static int bond_set_dev_addr(struct net_device *bond_dev, + struct net_device *slave_dev) { + int err; + netdev_dbg(bond_dev, "bond_dev=%p slave_dev=%p slave_dev->name=%s slave_dev->addr_len=%d\n", bond_dev, slave_dev, slave_dev->name, slave_dev->addr_len); + err = dev_pre_changeaddr_notify(bond_dev, slave_dev->dev_addr, NULL); + if (err) + return err; + memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); bond_dev->addr_assign_type = NET_ADDR_STOLEN; call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); + return 0; } static struct slave *bond_get_old_active(struct bonding *bond, @@ -652,8 +658,12 @@ static void bond_do_fail_over_mac(struct bonding *bond, switch (bond->params.fail_over_mac) { case BOND_FOM_ACTIVE: - if (new_active) - bond_set_dev_addr(bond->dev, new_active->dev); + if (new_active) { + rv = bond_set_dev_addr(bond->dev, new_active->dev); + if (rv) + netdev_err(bond->dev, "Error %d setting MAC of slave %s\n", + -rv, bond->dev->name); + } break; case BOND_FOM_FOLLOW: /* if new_active && old_active, swap them @@ -680,7 +690,7 @@ static void bond_do_fail_over_mac(struct bonding *bond, } rv = dev_set_mac_address(new_active->dev, - (struct sockaddr *)&ss); + (struct sockaddr *)&ss, NULL); if (rv) { netdev_err(bond->dev, "Error %d setting MAC of slave %s\n", -rv, new_active->dev->name); @@ -695,7 +705,7 @@ static void bond_do_fail_over_mac(struct bonding *bond, ss.ss_family = old_active->dev->type; rv = dev_set_mac_address(old_active->dev, - (struct sockaddr *)&ss); + (struct sockaddr *)&ss, NULL); if (rv) netdev_err(bond->dev, "Error %d setting MAC of slave %s\n", -rv, new_active->dev->name); @@ -1172,29 +1182,22 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) } } - /* Link-local multicast packets should be passed to the - * stack on the link they arrive as well as pass them to the - * bond-master device. These packets are mostly usable when - * stack receives it with the link on which they arrive - * (e.g. LLDP) they also must be available on master. Some of - * the use cases include (but are not limited to): LLDP agents - * that must be able to operate both on enslaved interfaces as - * well as on bonds themselves; linux bridges that must be able - * to process/pass BPDUs from attached bonds when any kind of - * STP version is enabled on the network. + /* + * For packets determined by bond_should_deliver_exact_match() call to + * be suppressed we want to make an exception for link-local packets. + * This is necessary for e.g. LLDP daemons to be able to monitor + * inactive slave links without being forced to bind to them + * explicitly. + * + * At the same time, packets that are passed to the bonding master + * (including link-local ones) can have their originating interface + * determined via PACKET_ORIGDEV socket option. */ - if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) { - struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC); - - if (nskb) { - nskb->dev = bond->dev; - nskb->queue_mapping = 0; - netif_rx(nskb); - } - return RX_HANDLER_PASS; - } - if (bond_should_deliver_exact_match(skb, slave, bond)) + if (bond_should_deliver_exact_match(skb, slave, bond)) { + if (is_link_local_ether_addr(eth_hdr(skb)->h_dest)) + return RX_HANDLER_PASS; return RX_HANDLER_EXACT; + } skb->dev = bond->dev; @@ -1489,8 +1492,11 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, * address to be the same as the slave's. */ if (!bond_has_slaves(bond) && - bond->dev->addr_assign_type == NET_ADDR_RANDOM) - bond_set_dev_addr(bond->dev, slave_dev); + bond->dev->addr_assign_type == NET_ADDR_RANDOM) { + res = bond_set_dev_addr(bond->dev, slave_dev); + if (res) + goto err_undo_flags; + } new_slave = bond_alloc_slave(bond); if (!new_slave) { @@ -1527,7 +1533,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, */ memcpy(ss.__data, bond_dev->dev_addr, bond_dev->addr_len); ss.ss_family = slave_dev->type; - res = dev_set_mac_address(slave_dev, (struct sockaddr *)&ss); + res = dev_set_mac_address(slave_dev, (struct sockaddr *)&ss, + extack); if (res) { netdev_dbg(bond_dev, "Error %d calling set_mac_address\n", res); goto err_restore_mtu; @@ -1538,7 +1545,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, slave_dev->flags |= IFF_SLAVE; /* open the slave since the application closed it */ - res = dev_open(slave_dev); + res = dev_open(slave_dev, extack); if (res) { netdev_dbg(bond_dev, "Opening slave %s failed\n", slave_dev->name); goto err_restore_mac; @@ -1818,7 +1825,7 @@ err_restore_mac: bond_hw_addr_copy(ss.__data, new_slave->perm_hwaddr, new_slave->dev->addr_len); ss.ss_family = slave_dev->type; - dev_set_mac_address(slave_dev, (struct sockaddr *)&ss); + dev_set_mac_address(slave_dev, (struct sockaddr *)&ss, NULL); } err_restore_mtu: @@ -1948,6 +1955,9 @@ static int __bond_release_one(struct net_device *bond_dev, if (!bond_has_slaves(bond)) { bond_set_carrier(bond); eth_hw_addr_random(bond_dev); + bond->nest_level = SINGLE_DEPTH_NESTING; + } else { + bond->nest_level = dev_get_nest_level(bond_dev) + 1; } unblock_netpoll_tx(); @@ -1999,7 +2009,7 @@ static int __bond_release_one(struct net_device *bond_dev, bond_hw_addr_copy(ss.__data, slave->perm_hwaddr, slave->dev->addr_len); ss.ss_family = slave_dev->type; - dev_set_mac_address(slave_dev, (struct sockaddr *)&ss); + dev_set_mac_address(slave_dev, (struct sockaddr *)&ss, NULL); } if (unregister) @@ -3203,8 +3213,12 @@ static int bond_netdev_event(struct notifier_block *this, return NOTIFY_DONE; if (event_dev->flags & IFF_MASTER) { + int ret; + netdev_dbg(event_dev, "IFF_MASTER\n"); - return bond_master_netdev_event(event, event_dev); + ret = bond_master_netdev_event(event, event_dev); + if (ret != NOTIFY_DONE) + return ret; } if (event_dev->flags & IFF_SLAVE) { @@ -3544,8 +3558,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd break; case BOND_SETHWADDR_OLD: case SIOCBONDSETHWADDR: - bond_set_dev_addr(bond_dev, slave_dev); - res = 0; + res = bond_set_dev_addr(bond_dev, slave_dev); break; case BOND_CHANGE_ACTIVE_OLD: case SIOCBONDCHANGEACTIVE: @@ -3732,7 +3745,7 @@ static int bond_set_mac_address(struct net_device *bond_dev, void *addr) bond_for_each_slave(bond, slave, iter) { netdev_dbg(bond_dev, "slave %p %s\n", slave, slave->dev->name); - res = dev_set_mac_address(slave->dev, addr); + res = dev_set_mac_address(slave->dev, addr, NULL); if (res) { /* TODO: consider downing the slave * and retry ? @@ -3761,7 +3774,7 @@ unwind: break; tmp_res = dev_set_mac_address(rollback_slave->dev, - (struct sockaddr *)&tmp_ss); + (struct sockaddr *)&tmp_ss, NULL); if (tmp_res) { netdev_dbg(bond_dev, "unwind err %d dev %s\n", tmp_res, rollback_slave->dev->name); |