diff options
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 117 |
1 files changed, 9 insertions, 108 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 257333c88710..4da619210c1f 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -142,8 +142,7 @@ module_param(downdelay, int, 0); MODULE_PARM_DESC(downdelay, "Delay before considering link down, " "in milliseconds"); module_param(use_carrier, int, 0); -MODULE_PARM_DESC(use_carrier, "Use netif_carrier_ok (vs MII ioctls) in miimon; " - "0 for off, 1 for on (default)"); +MODULE_PARM_DESC(use_carrier, "option obsolete, use_carrier cannot be disabled"); module_param(mode, charp, 0); MODULE_PARM_DESC(mode, "Mode of operation; 0 for balance-rr, " "1 for active-backup, 2 for balance-xor, " @@ -830,77 +829,6 @@ const char *bond_slave_link_status(s8 link) } } -/* if <dev> supports MII link status reporting, check its link status. - * - * We either do MII/ETHTOOL ioctls, or check netif_carrier_ok(), - * depending upon the setting of the use_carrier parameter. - * - * Return either BMSR_LSTATUS, meaning that the link is up (or we - * can't tell and just pretend it is), or 0, meaning that the link is - * down. - * - * If reporting is non-zero, instead of faking link up, return -1 if - * both ETHTOOL and MII ioctls fail (meaning the device does not - * support them). If use_carrier is set, return whatever it says. - * It'd be nice if there was a good way to tell if a driver supports - * netif_carrier, but there really isn't. - */ -static int bond_check_dev_link(struct bonding *bond, - struct net_device *slave_dev, int reporting) -{ - const struct net_device_ops *slave_ops = slave_dev->netdev_ops; - struct mii_ioctl_data *mii; - struct ifreq ifr; - int ret; - - if (!reporting && !netif_running(slave_dev)) - return 0; - - if (bond->params.use_carrier) - return netif_carrier_ok(slave_dev) ? BMSR_LSTATUS : 0; - - /* Try to get link status using Ethtool first. */ - if (slave_dev->ethtool_ops->get_link) { - netdev_lock_ops(slave_dev); - ret = slave_dev->ethtool_ops->get_link(slave_dev); - netdev_unlock_ops(slave_dev); - - return ret ? BMSR_LSTATUS : 0; - } - - /* Ethtool can't be used, fallback to MII ioctls. */ - if (slave_ops->ndo_eth_ioctl) { - /* TODO: set pointer to correct ioctl on a per team member - * bases to make this more efficient. that is, once - * we determine the correct ioctl, we will always - * call it and not the others for that team - * member. - */ - - /* We cannot assume that SIOCGMIIPHY will also read a - * register; not all network drivers (e.g., e100) - * support that. - */ - - /* Yes, the mii is overlaid on the ifreq.ifr_ifru */ - strscpy_pad(ifr.ifr_name, slave_dev->name, IFNAMSIZ); - mii = if_mii(&ifr); - - if (dev_eth_ioctl(slave_dev, &ifr, SIOCGMIIPHY) == 0) { - mii->reg_num = MII_BMSR; - if (dev_eth_ioctl(slave_dev, &ifr, SIOCGMIIREG) == 0) - return mii->val_out & BMSR_LSTATUS; - } - } - - /* If reporting, report that either there's no ndo_eth_ioctl, - * or both SIOCGMIIREG and get_link failed (meaning that we - * cannot report link status). If not reporting, pretend - * we're ok. - */ - return reporting ? -1 : BMSR_LSTATUS; -} - /*----------------------------- Multicast list ------------------------------*/ /* Push the promiscuity flag down to appropriate slaves */ @@ -1966,7 +1894,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, const struct net_device_ops *slave_ops = slave_dev->netdev_ops; struct slave *new_slave = NULL, *prev_slave; struct sockaddr_storage ss; - int link_reporting; int res = 0, i; if (slave_dev->flags & IFF_MASTER && @@ -1976,12 +1903,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, return -EPERM; } - if (!bond->params.use_carrier && - slave_dev->ethtool_ops->get_link == NULL && - slave_ops->ndo_eth_ioctl == NULL) { - slave_warn(bond_dev, slave_dev, "no link monitoring support\n"); - } - /* already in-use? */ if (netdev_is_rx_handler_busy(slave_dev)) { SLAVE_NL_ERR(bond_dev, slave_dev, extack, @@ -2132,6 +2053,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, memcpy(ss.__data, bond_dev->dev_addr, bond_dev->addr_len); } else if (bond->params.fail_over_mac == BOND_FOM_FOLLOW && BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP && + bond_has_slaves(bond) && memcmp(slave_dev->dev_addr, bond_dev->dev_addr, bond_dev->addr_len) == 0) { /* Set slave to random address to avoid duplicate mac * address in later fail over. @@ -2195,29 +2117,10 @@ skip_mac_set: new_slave->last_tx = new_slave->last_rx; - if (bond->params.miimon && !bond->params.use_carrier) { - link_reporting = bond_check_dev_link(bond, slave_dev, 1); - - if ((link_reporting == -1) && !bond->params.arp_interval) { - /* miimon is set but a bonded network driver - * does not support ETHTOOL/MII and - * arp_interval is not set. Note: if - * use_carrier is enabled, we will never go - * here (because netif_carrier is always - * supported); thus, we don't need to change - * the messages for netif_carrier. - */ - slave_warn(bond_dev, slave_dev, "MII and ETHTOOL support not available for slave, and arp_interval/arp_ip_target module parameters not specified, thus bonding will not detect link failures! see bonding.txt for details\n"); - } else if (link_reporting == -1) { - /* unable get link status using mii/ethtool */ - slave_warn(bond_dev, slave_dev, "can't get link status from slave; the network driver associated with this interface does not support MII or ETHTOOL link status reporting, thus miimon has no effect on this interface\n"); - } - } - /* check for initial state */ new_slave->link = BOND_LINK_NOCHANGE; if (bond->params.miimon) { - if (bond_check_dev_link(bond, slave_dev, 0) == BMSR_LSTATUS) { + if (netif_carrier_ok(slave_dev)) { if (bond->params.updelay) { bond_set_slave_link_state(new_slave, BOND_LINK_BACK, @@ -2759,7 +2662,7 @@ static int bond_miimon_inspect(struct bonding *bond) bond_for_each_slave_rcu(bond, slave, iter) { bond_propose_link_state(slave, BOND_LINK_NOCHANGE); - link_state = bond_check_dev_link(bond, slave->dev, 0); + link_state = netif_carrier_ok(slave->dev); switch (slave->link) { case BOND_LINK_UP: @@ -3355,7 +3258,6 @@ static void bond_ns_send_all(struct bonding *bond, struct slave *slave) /* Find out through which dev should the packet go */ memset(&fl6, 0, sizeof(struct flowi6)); fl6.daddr = targets[i]; - fl6.flowi6_oif = bond->dev->ifindex; dst = ip6_route_output(dev_net(bond->dev), NULL, &fl6); if (dst->error) { @@ -4411,7 +4313,7 @@ void bond_work_init_all(struct bonding *bond) INIT_DELAYED_WORK(&bond->slave_arr_work, bond_slave_arr_handler); } -static void bond_work_cancel_all(struct bonding *bond) +void bond_work_cancel_all(struct bonding *bond) { cancel_delayed_work_sync(&bond->mii_work); cancel_delayed_work_sync(&bond->arp_work); @@ -6257,10 +6159,10 @@ static int __init bond_check_params(struct bond_params *params) downdelay = 0; } - if ((use_carrier != 0) && (use_carrier != 1)) { - pr_warn("Warning: use_carrier module parameter (%d), not of valid value (0/1), so it was set to 1\n", - use_carrier); - use_carrier = 1; + if (use_carrier != 1) { + pr_err("Error: invalid use_carrier parameter (%d)\n", + use_carrier); + return -EINVAL; } if (num_peer_notif < 0 || num_peer_notif > 255) { @@ -6507,7 +6409,6 @@ static int __init bond_check_params(struct bond_params *params) params->updelay = updelay; params->downdelay = downdelay; params->peer_notif_delay = 0; - params->use_carrier = use_carrier; params->lacp_active = 1; params->lacp_fast = lacp_fast; params->primary[0] = 0; |