From cc0e40700656b09d93b062ef6c818aa45429d09a Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 20 Jul 2011 04:54:46 +0000 Subject: [PATCH] bonding: do vlan cleanup Now when all devices are cleaned up, bond can be cleaned up as well - remove bond->vlgrp - remove bond_vlan_rx_register - substitute necessary occurences of vlan_group_get_device Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/bonding/bond_alb.c | 4 +- drivers/net/bonding/bond_ipv6.c | 8 +-- drivers/net/bonding/bond_main.c | 98 ++++++++------------------------- drivers/net/bonding/bonding.h | 6 +- 4 files changed, 33 insertions(+), 83 deletions(-) diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 2df9276720a0..7f8b20a34ee3 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -635,7 +635,7 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon client_info->ntt = 0; } - if (bond->vlgrp) { + if (bond_vlan_used(bond)) { if (!vlan_get_tag(skb, &client_info->vlan_id)) client_info->tag = 1; } @@ -847,7 +847,7 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[]) skb->priority = TC_PRIO_CONTROL; skb->dev = slave->dev; - if (bond->vlgrp) { + if (bond_vlan_used(bond)) { struct vlan_entry *vlan; vlan = bond_next_vlan(bond, diff --git a/drivers/net/bonding/bond_ipv6.c b/drivers/net/bonding/bond_ipv6.c index 84fbd4ebd778..027a0ee7d85b 100644 --- a/drivers/net/bonding/bond_ipv6.c +++ b/drivers/net/bonding/bond_ipv6.c @@ -183,10 +183,10 @@ static int bond_inet6addr_event(struct notifier_block *this, } list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { - if (!bond->vlgrp) - continue; - vlan_dev = vlan_group_get_device(bond->vlgrp, - vlan->vlan_id); + rcu_read_lock(); + vlan_dev = __vlan_find_dev_deep(bond->dev, + vlan->vlan_id); + rcu_read_unlock(); if (vlan_dev == event_dev) { switch (event) { case NETDEV_UP: diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b9eaf5c0dc72..02842d05c11f 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -408,9 +408,8 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, } /* - * In the following 3 functions, bond_vlan_rx_register(), bond_vlan_rx_add_vid - * and bond_vlan_rx_kill_vid, We don't protect the slave list iteration with a - * lock because: + * In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid, + * We don't protect the slave list iteration with a lock because: * a. This operation is performed in IOCTL context, * b. The operation is protected by the RTNL semaphore in the 8021q code, * c. Holding a lock with BH disabled while directly calling a base driver @@ -425,33 +424,6 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, * worse, and if it works for regular VLAN usage it will work here too. */ -/** - * bond_vlan_rx_register - Propagates registration to slaves - * @bond_dev: bonding net device that got called - * @grp: vlan group being registered - */ -static void bond_vlan_rx_register(struct net_device *bond_dev, - struct vlan_group *grp) -{ - struct bonding *bond = netdev_priv(bond_dev); - struct slave *slave; - int i; - - write_lock_bh(&bond->lock); - bond->vlgrp = grp; - write_unlock_bh(&bond->lock); - - bond_for_each_slave(bond, slave, i) { - struct net_device *slave_dev = slave->dev; - const struct net_device_ops *slave_ops = slave_dev->netdev_ops; - - if ((slave_dev->features & NETIF_F_HW_VLAN_RX) && - slave_ops->ndo_vlan_rx_register) { - slave_ops->ndo_vlan_rx_register(slave_dev, grp); - } - } -} - /** * bond_vlan_rx_add_vid - Propagates adding an id to slaves * @bond_dev: bonding net device that got called @@ -489,7 +461,6 @@ static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid) { struct bonding *bond = netdev_priv(bond_dev); struct slave *slave; - struct net_device *vlan_dev; int i, res; bond_for_each_slave(bond, slave, i) { @@ -498,12 +469,7 @@ static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid) if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) && slave_ops->ndo_vlan_rx_kill_vid) { - /* Save and then restore vlan_dev in the grp array, - * since the slave's driver might clear it. - */ - vlan_dev = vlan_group_get_device(bond->vlgrp, vid); slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vid); - vlan_group_set_device(bond->vlgrp, vid, vlan_dev); } } @@ -519,13 +485,6 @@ static void bond_add_vlans_on_slave(struct bonding *bond, struct net_device *sla struct vlan_entry *vlan; const struct net_device_ops *slave_ops = slave_dev->netdev_ops; - if (!bond->vlgrp) - return; - - if ((slave_dev->features & NETIF_F_HW_VLAN_RX) && - slave_ops->ndo_vlan_rx_register) - slave_ops->ndo_vlan_rx_register(slave_dev, bond->vlgrp); - if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) || !(slave_ops->ndo_vlan_rx_add_vid)) return; @@ -539,30 +498,16 @@ static void bond_del_vlans_from_slave(struct bonding *bond, { const struct net_device_ops *slave_ops = slave_dev->netdev_ops; struct vlan_entry *vlan; - struct net_device *vlan_dev; - - if (!bond->vlgrp) - return; if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) || !(slave_ops->ndo_vlan_rx_kill_vid)) - goto unreg; + return; list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { if (!vlan->vlan_id) continue; - /* Save and then restore vlan_dev in the grp array, - * since the slave's driver might clear it. - */ - vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id); slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vlan->vlan_id); - vlan_group_set_device(bond->vlgrp, vlan->vlan_id, vlan_dev); } - -unreg: - if ((slave_dev->features & NETIF_F_HW_VLAN_RX) && - slave_ops->ndo_vlan_rx_register) - slave_ops->ndo_vlan_rx_register(slave_dev, NULL); } /*------------------------------- Link status -------------------------------*/ @@ -836,13 +781,13 @@ static void bond_resend_igmp_join_requests(struct bonding *bond) __bond_resend_igmp_join_requests(bond->dev); /* rejoin all groups on vlan devices */ - if (bond->vlgrp) { - list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { - vlan_dev = vlan_group_get_device(bond->vlgrp, - vlan->vlan_id); - if (vlan_dev) - __bond_resend_igmp_join_requests(vlan_dev); - } + list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { + rcu_read_lock(); + vlan_dev = __vlan_find_dev_deep(bond->dev, + vlan->vlan_id); + rcu_read_unlock(); + if (vlan_dev) + __bond_resend_igmp_join_requests(vlan_dev); } if (--bond->igmp_retrans > 0) @@ -1557,7 +1502,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) /* no need to lock since we're protected by rtnl_lock */ if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) { pr_debug("%s: NETIF_F_VLAN_CHALLENGED\n", slave_dev->name); - if (bond->vlgrp) { + if (bond_vlan_used(bond)) { pr_err("%s: Error: cannot enslave VLAN challenged slave %s on VLAN enabled bond %s\n", bond_dev->name, slave_dev->name, bond_dev->name); return -EPERM; @@ -2065,7 +2010,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) */ memset(bond_dev->dev_addr, 0, bond_dev->addr_len); - if (bond->vlgrp) { + if (bond_vlan_used(bond)) { pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n", bond_dev->name, bond_dev->name); pr_warning("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs'.\n", @@ -2247,7 +2192,7 @@ static int bond_release_all(struct net_device *bond_dev) */ memset(bond_dev->dev_addr, 0, bond_dev->addr_len); - if (bond->vlgrp) { + if (bond_vlan_used(bond)) { pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n", bond_dev->name, bond_dev->name); pr_warning("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs'.\n", @@ -2685,7 +2630,7 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave) if (!targets[i]) break; pr_debug("basa: target %x\n", targets[i]); - if (!bond->vlgrp) { + if (!bond_vlan_used(bond)) { pr_debug("basa: empty vlan: arp_send\n"); bond_arp_send(slave->dev, ARPOP_REQUEST, targets[i], bond->master_ip, 0); @@ -2720,7 +2665,10 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave) vlan_id = 0; list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { - vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id); + rcu_read_lock(); + vlan_dev = __vlan_find_dev_deep(bond->dev, + vlan->vlan_id); + rcu_read_unlock(); if (vlan_dev == rt->dst.dev) { vlan_id = vlan->vlan_id; pr_debug("basa: vlan match on %s %d\n", @@ -3381,9 +3329,8 @@ static int bond_inetaddr_event(struct notifier_block *this, unsigned long event, } list_for_each_entry(vlan, &bond->vlan_list, vlan_list) { - if (!bond->vlgrp) - continue; - vlan_dev = vlan_group_get_device(bond->vlgrp, vlan->vlan_id); + vlan_dev = __vlan_find_dev_deep(bond->dev, + vlan->vlan_id); if (vlan_dev == event_dev) { switch (event) { case NETDEV_UP: @@ -4335,10 +4282,9 @@ static const struct net_device_ops bond_netdev_ops = { .ndo_do_ioctl = bond_do_ioctl, .ndo_set_multicast_list = bond_set_multicast_list, .ndo_change_mtu = bond_change_mtu, - .ndo_set_mac_address = bond_set_mac_address, + .ndo_set_mac_address = bond_set_mac_address, .ndo_neigh_setup = bond_neigh_setup, - .ndo_vlan_rx_register = bond_vlan_rx_register, - .ndo_vlan_rx_add_vid = bond_vlan_rx_add_vid, + .ndo_vlan_rx_add_vid = bond_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = bond_vlan_rx_kill_vid, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_netpoll_setup = bond_netpoll_setup, diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 2936171f5332..43526a2d275c 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -240,7 +240,6 @@ struct bonding { struct alb_bond_info alb_info; struct bond_params params; struct list_head vlan_list; - struct vlan_group *vlgrp; struct workqueue_struct *wq; struct delayed_work mii_work; struct delayed_work arp_work; @@ -253,6 +252,11 @@ struct bonding { #endif /* CONFIG_DEBUG_FS */ }; +static inline bool bond_vlan_used(struct bonding *bond) +{ + return !list_empty(&bond->vlan_list); +} + #define bond_slave_get_rcu(dev) \ ((struct slave *) rcu_dereference(dev->rx_handler_data)) -- 2.34.1