diff options
Diffstat (limited to 'drivers/net/bonding')
| -rw-r--r-- | drivers/net/bonding/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_3ad.c | 106 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_3ad.h | 13 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_alb.c | 75 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_alb.h | 9 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 781 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 1358 | ||||
| -rw-r--r-- | drivers/net/bonding/bonding.h | 52 |
8 files changed, 1664 insertions, 732 deletions
diff --git a/drivers/net/bonding/Makefile b/drivers/net/bonding/Makefile index cf50384b469..5cdae2bc055 100644 --- a/drivers/net/bonding/Makefile +++ b/drivers/net/bonding/Makefile @@ -4,5 +4,5 @@ obj-$(CONFIG_BONDING) += bonding.o -bonding-objs := bond_main.o bond_3ad.o bond_alb.o +bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c index d2f34d5a808..f3f5825469d 100644 --- a/drivers/net/bonding/bond_3ad.c +++ b/drivers/net/bonding/bond_3ad.c @@ -18,38 +18,6 @@ * The full GNU General Public License is included in this distribution in the * file called LICENSE. * - * - * Changes: - * - * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Amir Noam <amir.noam at intel dot com> - * - Added support for lacp_rate module param. - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Based on discussion on mailing list, changed locking scheme - * to use lock/unlock or lock_bh/unlock_bh appropriately instead - * of lock_irqsave/unlock_irqrestore. The new scheme helps exposing - * hidden bugs and solves system hangs that occurred due to the fact - * that holding lock_irqsave doesn't prevent softirqs from running. - * This also increases total throughput since interrupts are not - * blocked on each transmitted packets or monitor timeout. - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Renamed bond_3ad_link_status_changed() to - * bond_3ad_handle_link_change() for compatibility with TLB. - * - * 2003/05/20 - Amir Noam <amir.noam at intel dot com> - * - Fix long fail over time when releasing last slave of an active - * aggregator - send LACPDU on unbind of slave to tell partner this - * port is no longer aggregatable. - * - * 2003/06/25 - Tsippy Mendelson <tsippy.mendelson at intel dot com> - * - Send LACPDU as highest priority packet to further fix the above - * problem on very high Tx traffic load where packets may get dropped - * by the slave. - * - * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Code cleanup and style changes */ //#define BONDING_DEBUG 1 @@ -1198,10 +1166,10 @@ static void ad_rx_machine(struct lacpdu *lacpdu, struct port *port) // detect loopback situation if (!MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->actor_system))) { // INFO_RECEIVED_LOOPBACK_FRAMES - printk(KERN_ERR DRV_NAME ": An illegal loopback occurred on adapter (%s)\n", - port->slave->dev->name); - printk(KERN_ERR "Check the configuration to verify that all Adapters " - "are connected to 802.3ad compliant switch ports\n"); + printk(KERN_ERR DRV_NAME ": %s: An illegal loopback occurred on " + "adapter (%s). Check the configuration to verify that all " + "Adapters are connected to 802.3ad compliant switch ports\n", + port->slave->dev->master->name, port->slave->dev->name); __release_rx_machine_lock(port); return; } @@ -1378,8 +1346,9 @@ static void ad_port_selection_logic(struct port *port) } } if (!curr_port) { // meaning: the port was related to an aggregator but was not on the aggregator port list - printk(KERN_WARNING DRV_NAME ": Warning: Port %d (on %s) was " + printk(KERN_WARNING DRV_NAME ": %s: Warning: Port %d (on %s) was " "related to aggregator %d but was not on its port list\n", + port->slave->dev->master->name, port->actor_port_number, port->slave->dev->name, port->aggregator->aggregator_identifier); } @@ -1450,7 +1419,8 @@ static void ad_port_selection_logic(struct port *port) dprintk("Port %d joined LAG %d(new LAG)\n", port->actor_port_number, port->aggregator->aggregator_identifier); } else { - printk(KERN_ERR DRV_NAME ": Port %d (on %s) did not find a suitable aggregator\n", + printk(KERN_ERR DRV_NAME ": %s: Port %d (on %s) did not find a suitable aggregator\n", + port->slave->dev->master->name, port->actor_port_number, port->slave->dev->name); } } @@ -1582,8 +1552,9 @@ static void ad_agg_selection_logic(struct aggregator *aggregator) // check if any partner replys if (best_aggregator->is_individual) { - printk(KERN_WARNING DRV_NAME ": Warning: No 802.3ad response from the link partner " - "for any adapters in the bond\n"); + printk(KERN_WARNING DRV_NAME ": %s: Warning: No 802.3ad response from " + "the link partner for any adapters in the bond\n", + best_aggregator->slave->dev->master->name); } // check if there are more than one aggregator @@ -1915,7 +1886,8 @@ int bond_3ad_bind_slave(struct slave *slave) struct aggregator *aggregator; if (bond == NULL) { - printk(KERN_ERR "The slave %s is not attached to its bond\n", slave->dev->name); + printk(KERN_ERR DRV_NAME ": %s: The slave %s is not attached to its bond\n", + slave->dev->master->name, slave->dev->name); return -1; } @@ -1990,7 +1962,9 @@ void bond_3ad_unbind_slave(struct slave *slave) // if slave is null, the whole port is not initialized if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Trying to unbind an uninitialized port on %s\n", slave->dev->name); + printk(KERN_WARNING DRV_NAME ": Warning: %s: Trying to " + "unbind an uninitialized port on %s\n", + slave->dev->master->name, slave->dev->name); return; } @@ -2021,7 +1995,8 @@ void bond_3ad_unbind_slave(struct slave *slave) dprintk("Some port(s) related to LAG %d - replaceing with LAG %d\n", aggregator->aggregator_identifier, new_aggregator->aggregator_identifier); if ((new_aggregator->lag_ports == port) && new_aggregator->is_active) { - printk(KERN_INFO DRV_NAME ": Removing an active aggregator\n"); + printk(KERN_INFO DRV_NAME ": %s: Removing an active aggregator\n", + aggregator->slave->dev->master->name); // select new active aggregator select_new_active_agg = 1; } @@ -2051,15 +2026,17 @@ void bond_3ad_unbind_slave(struct slave *slave) ad_agg_selection_logic(__get_first_agg(port)); } } else { - printk(KERN_WARNING DRV_NAME ": Warning: unbinding aggregator, " - "and could not find a new aggregator for its ports\n"); + printk(KERN_WARNING DRV_NAME ": %s: Warning: unbinding aggregator, " + "and could not find a new aggregator for its ports\n", + slave->dev->master->name); } } else { // in case that the only port related to this aggregator is the one we want to remove select_new_active_agg = aggregator->is_active; // clear the aggregator ad_clear_agg(aggregator); if (select_new_active_agg) { - printk(KERN_INFO "Removing an active aggregator\n"); + printk(KERN_INFO DRV_NAME ": %s: Removing an active aggregator\n", + slave->dev->master->name); // select new active aggregator ad_agg_selection_logic(__get_first_agg(port)); } @@ -2085,7 +2062,8 @@ void bond_3ad_unbind_slave(struct slave *slave) // clear the aggregator ad_clear_agg(temp_aggregator); if (select_new_active_agg) { - printk(KERN_INFO "Removing an active aggregator\n"); + printk(KERN_INFO DRV_NAME ": %s: Removing an active aggregator\n", + slave->dev->master->name); // select new active aggregator ad_agg_selection_logic(__get_first_agg(port)); } @@ -2131,7 +2109,8 @@ void bond_3ad_state_machine_handler(struct bonding *bond) // select the active aggregator for the bond if ((port = __get_first_port(bond))) { if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: bond's first port is uninitialized\n"); + printk(KERN_WARNING DRV_NAME ": %s: Warning: bond's first port is " + "uninitialized\n", bond->dev->name); goto re_arm; } @@ -2143,7 +2122,8 @@ void bond_3ad_state_machine_handler(struct bonding *bond) // for each port run the state machines for (port = __get_first_port(bond); port; port = __get_next_port(port)) { if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: Found an uninitialized port\n"); + printk(KERN_WARNING DRV_NAME ": %s: Warning: Found an uninitialized " + "port\n", bond->dev->name); goto re_arm; } @@ -2184,7 +2164,8 @@ static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u port = &(SLAVE_AD_INFO(slave).port); if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: port of slave %s is uninitialized\n", slave->dev->name); + printk(KERN_WARNING DRV_NAME ": %s: Warning: port of slave %s is " + "uninitialized\n", slave->dev->name, slave->dev->master->name); return; } @@ -2230,8 +2211,9 @@ void bond_3ad_adapter_speed_changed(struct slave *slave) // if slave is null, the whole port is not initialized if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: speed changed for uninitialized port on %s\n", - slave->dev->name); + printk(KERN_WARNING DRV_NAME ": Warning: %s: speed " + "changed for uninitialized port on %s\n", + slave->dev->master->name, slave->dev->name); return; } @@ -2257,8 +2239,9 @@ void bond_3ad_adapter_duplex_changed(struct slave *slave) // if slave is null, the whole port is not initialized if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: duplex changed for uninitialized port on %s\n", - slave->dev->name); + printk(KERN_WARNING DRV_NAME ": %s: Warning: duplex changed " + "for uninitialized port on %s\n", + slave->dev->master->name, slave->dev->name); return; } @@ -2285,8 +2268,9 @@ void bond_3ad_handle_link_change(struct slave *slave, char link) // if slave is null, the whole port is not initialized if (!port->slave) { - printk(KERN_WARNING DRV_NAME ": Warning: link status changed for uninitialized port on %s\n", - slave->dev->name); + printk(KERN_WARNING DRV_NAME ": Warning: %s: link status changed for " + "uninitialized port on %s\n", + slave->dev->master->name, slave->dev->name); return; } @@ -2363,7 +2347,8 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) } if (bond_3ad_get_active_agg_info(bond, &ad_info)) { - printk(KERN_DEBUG "ERROR: bond_3ad_get_active_agg_info failed\n"); + printk(KERN_DEBUG DRV_NAME ": %s: Error: " + "bond_3ad_get_active_agg_info failed\n", dev->name); goto out; } @@ -2372,7 +2357,9 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) if (slaves_in_agg == 0) { /*the aggregator is empty*/ - printk(KERN_DEBUG "ERROR: active aggregator is empty\n"); + printk(KERN_DEBUG DRV_NAME ": %s: Error: active " + "aggregator is empty\n", + dev->name); goto out; } @@ -2390,7 +2377,8 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) } if (slave_agg_no >= 0) { - printk(KERN_ERR DRV_NAME ": Error: Couldn't find a slave to tx on for aggregator ID %d\n", agg_id); + printk(KERN_ERR DRV_NAME ": %s: Error: Couldn't find a slave to tx on " + "for aggregator ID %d\n", dev->name, agg_id); goto out; } diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h index 673a30af566..5ee2cef5b03 100644 --- a/drivers/net/bonding/bond_3ad.h +++ b/drivers/net/bonding/bond_3ad.h @@ -18,19 +18,6 @@ * The full GNU General Public License is included in this distribution in the * file called LICENSE. * - * - * Changes: - * - * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Amir Noam <amir.noam at intel dot com> - * - Added support for lacp_rate module param. - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Renamed bond_3ad_link_status_changed() to - * bond_3ad_handle_link_change() for compatibility with TLB. - * - * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Code cleanup and style changes */ #ifndef __BOND_3AD_H__ diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index f8fce396119..854ddfb90da 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -18,25 +18,6 @@ * The full GNU General Public License is included in this distribution in the * file called LICENSE. * - * - * Changes: - * - * 2003/06/25 - Shmulik Hen <shmulik.hen at intel dot com> - * - Fixed signed/unsigned calculation errors that caused load sharing - * to collapse to one slave under very heavy UDP Tx stress. - * - * 2003/08/06 - Amir Noam <amir.noam at intel dot com> - * - Add support for setting bond's MAC address with special - * handling required for ALB/TLB. - * - * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Code cleanup and style changes - * - * 2003/12/30 - Amir Noam <amir.noam at intel dot com> - * - Fixed: Cannot remove and re-enslave the original active slave. - * - * 2004/01/14 - Shmulik Hen <shmulik.hen at intel dot com> - * - Add capability to tag self generated packets in ALB/TLB modes. */ //#define BONDING_DEBUG 1 @@ -198,20 +179,21 @@ static int tlb_initialize(struct bonding *bond) { struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); int size = TLB_HASH_TABLE_SIZE * sizeof(struct tlb_client_info); + struct tlb_client_info *new_hashtbl; int i; spin_lock_init(&(bond_info->tx_hashtbl_lock)); - _lock_tx_hashtbl(bond); - - bond_info->tx_hashtbl = kmalloc(size, GFP_KERNEL); - if (!bond_info->tx_hashtbl) { + new_hashtbl = kmalloc(size, GFP_KERNEL); + if (!new_hashtbl) { printk(KERN_ERR DRV_NAME - ": Error: %s: Failed to allocate TLB hash table\n", + ": %s: Error: Failed to allocate TLB hash table\n", bond->dev->name); - _unlock_tx_hashtbl(bond); return -1; } + _lock_tx_hashtbl(bond); + + bond_info->tx_hashtbl = new_hashtbl; memset(bond_info->tx_hashtbl, 0, size); @@ -513,7 +495,8 @@ static void rlb_update_client(struct rlb_client_info *client_info) client_info->mac_dst); if (!skb) { printk(KERN_ERR DRV_NAME - ": Error: failed to create an ARP packet\n"); + ": %s: Error: failed to create an ARP packet\n", + client_info->slave->dev->master->name); continue; } @@ -523,7 +506,8 @@ static void rlb_update_client(struct rlb_client_info *client_info) skb = vlan_put_tag(skb, client_info->vlan_id); if (!skb) { printk(KERN_ERR DRV_NAME - ": Error: failed to insert VLAN tag\n"); + ": %s: Error: failed to insert VLAN tag\n", + client_info->slave->dev->master->name); continue; } } @@ -606,8 +590,9 @@ static void rlb_req_update_subnet_clients(struct bonding *bond, u32 src_ip) if (!client_info->slave) { printk(KERN_ERR DRV_NAME - ": Error: found a client with no channel in " - "the client's hash table\n"); + ": %s: Error: found a client with no channel in " + "the client's hash table\n", + bond->dev->name); continue; } /*update all clients using this src_ip, that are not assigned @@ -797,21 +782,22 @@ static int rlb_initialize(struct bonding *bond) { struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); struct packet_type *pk_type = &(BOND_ALB_INFO(bond).rlb_pkt_type); + struct rlb_client_info *new_hashtbl; int size = RLB_HASH_TABLE_SIZE * sizeof(struct rlb_client_info); int i; spin_lock_init(&(bond_info->rx_hashtbl_lock)); - _lock_rx_hashtbl(bond); - - bond_info->rx_hashtbl = kmalloc(size, GFP_KERNEL); - if (!bond_info->rx_hashtbl) { + new_hashtbl = kmalloc(size, GFP_KERNEL); + if (!new_hashtbl) { printk(KERN_ERR DRV_NAME - ": Error: %s: Failed to allocate RLB hash table\n", + ": %s: Error: Failed to allocate RLB hash table\n", bond->dev->name); - _unlock_rx_hashtbl(bond); return -1; } + _lock_rx_hashtbl(bond); + + bond_info->rx_hashtbl = new_hashtbl; bond_info->rx_hashtbl_head = RLB_NULL_INDEX; @@ -927,7 +913,8 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[]) skb = vlan_put_tag(skb, vlan->vlan_id); if (!skb) { printk(KERN_ERR DRV_NAME - ": Error: failed to insert VLAN tag\n"); + ": %s: Error: failed to insert VLAN tag\n", + bond->dev->name); continue; } } @@ -956,11 +943,11 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[], int hw) s_addr.sa_family = dev->type; if (dev_set_mac_address(dev, &s_addr)) { printk(KERN_ERR DRV_NAME - ": Error: dev_set_mac_address of dev %s failed! ALB " + ": %s: Error: dev_set_mac_address of dev %s failed! ALB " "mode requires that the base driver support setting " "the hw address also when the network device's " "interface is open\n", - dev->name); + dev->master->name, dev->name); return -EOPNOTSUPP; } return 0; @@ -1153,16 +1140,16 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav bond->alb_info.rlb_enabled); printk(KERN_WARNING DRV_NAME - ": Warning: the hw address of slave %s is in use by " + ": %s: Warning: the hw address of slave %s is in use by " "the bond; giving it the hw address of %s\n", - slave->dev->name, free_mac_slave->dev->name); + bond->dev->name, slave->dev->name, free_mac_slave->dev->name); } else if (has_bond_addr) { printk(KERN_ERR DRV_NAME - ": Error: the hw address of slave %s is in use by the " + ": %s: Error: the hw address of slave %s is in use by the " "bond; couldn't find a slave with a free hw address to " "give it (this should not have happened)\n", - slave->dev->name); + bond->dev->name, slave->dev->name); return -EFAULT; } @@ -1250,6 +1237,8 @@ int bond_alb_initialize(struct bonding *bond, int rlb_enabled) tlb_deinitialize(bond); return res; } + } else { + bond->alb_info.rlb_enabled = 0; } return 0; @@ -1409,7 +1398,7 @@ void bond_alb_monitor(struct bonding *bond) read_lock(&bond->curr_slave_lock); bond_for_each_slave(bond, slave, i) { - alb_send_learning_packets(slave,slave->dev->dev_addr); + alb_send_learning_packets(slave, slave->dev->dev_addr); } read_unlock(&bond->curr_slave_lock); diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h index e4091cd8d65..28f2a2fd1b5 100644 --- a/drivers/net/bonding/bond_alb.h +++ b/drivers/net/bonding/bond_alb.h @@ -18,15 +18,6 @@ * The full GNU General Public License is included in this distribution in the * file called LICENSE. * - * - * Changes: - * - * 2003/08/06 - Amir Noam <amir.noam at intel dot com> - * - Add support for setting bond's MAC address with special - * handling required for ALB/TLB. - * - * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Code cleanup and style changes */ #ifndef __BOND_ALB_H__ diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 94cec3cf2a1..2582d98ef5c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -29,466 +29,6 @@ * b: if a hw mac address already is there, eth0's hw mac address * will then be set from bond0. * - * v0.1 - first working version. - * v0.2 - changed stats to be calculated by summing slaves stats. - * - * Changes: - * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - * - fix leaks on failure at bond_init - * - * 2000/09/30 - Willy Tarreau <willy at meta-x.org> - * - added trivial code to release a slave device. - * - fixed security bug (CAP_NET_ADMIN not checked) - * - implemented MII link monitoring to disable dead links : - * All MII capable slaves are checked every <miimon> milliseconds - * (100 ms seems good). This value can be changed by passing it to - * insmod. A value of zero disables the monitoring (default). - * - fixed an infinite loop in bond_xmit_roundrobin() when there's no - * good slave. - * - made the code hopefully SMP safe - * - * 2000/10/03 - Willy Tarreau <willy at meta-x.org> - * - optimized slave lists based on relevant suggestions from Thomas Davis - * - implemented active-backup method to obtain HA with two switches: - * stay as long as possible on the same active interface, while we - * also monitor the backup one (MII link status) because we want to know - * if we are able to switch at any time. ( pass "mode=1" to insmod ) - * - lots of stress testings because we need it to be more robust than the - * wires ! :-> - * - * 2000/10/09 - Willy Tarreau <willy at meta-x.org> - * - added up and down delays after link state change. - * - optimized the slaves chaining so that when we run forward, we never - * repass through the bond itself, but we can find it by searching - * backwards. Renders the deletion more difficult, but accelerates the - * scan. - * - smarter enslaving and releasing. - * - finer and more robust SMP locking - * - * 2000/10/17 - Willy Tarreau <willy at meta-x.org> - * - fixed two potential SMP race conditions - * - * 2000/10/18 - Willy Tarreau <willy at meta-x.org> - * - small fixes to the monitoring FSM in case of zero delays - * 2000/11/01 - Willy Tarreau <willy at meta-x.org> - * - fixed first slave not automatically used in trunk mode. - * 2000/11/10 : spelling of "EtherChannel" corrected. - * 2000/11/13 : fixed a race condition in case of concurrent accesses to ioctl(). - * 2000/12/16 : fixed improper usage of rtnl_exlock_nowait(). - * - * 2001/1/3 - Chad N. Tindel <ctindel at ieee dot org> - * - The bonding driver now simulates MII status monitoring, just like - * a normal network device. It will show that the link is down iff - * every slave in the bond shows that their links are down. If at least - * one slave is up, the bond's MII status will appear as up. - * - * 2001/2/7 - Chad N. Tindel <ctindel at ieee dot org> - * - Applications can now query the bond from user space to get - * information which may be useful. They do this by calling - * the BOND_INFO_QUERY ioctl. Once the app knows how many slaves - * are in the bond, it can call the BOND_SLAVE_INFO_QUERY ioctl to - * get slave specific information (# link failures, etc). See - * <linux/if_bonding.h> for more details. The structs of interest - * are ifbond and ifslave. - * - * 2001/4/5 - Chad N. Tindel <ctindel at ieee dot org> - * - Ported to 2.4 Kernel - * - * 2001/5/2 - Jeffrey E. Mast <jeff at mastfamily dot com> - * - When a device is detached from a bond, the slave device is no longer - * left thinking that is has a master. - * - * 2001/5/16 - Jeffrey E. Mast <jeff at mastfamily dot com> - * - memset did not appropriately initialized the bond rw_locks. Used - * rwlock_init to initialize to unlocked state to prevent deadlock when - * first attempting a lock - * - Called SET_MODULE_OWNER for bond device - * - * 2001/5/17 - Tim Anderson <tsa at mvista.com> - * - 2 paths for releasing for slave release; 1 through ioctl - * and 2) through close. Both paths need to release the same way. - * - the free slave in bond release is changing slave status before - * the free. The netdev_set_master() is intended to change slave state - * so it should not be done as part of the release process. - * - Simple rule for slave state at release: only the active in A/B and - * only one in the trunked case. - * - * 2001/6/01 - Tim Anderson <tsa at mvista.com> - * - Now call dev_close when releasing a slave so it doesn't screw up - * out routing table. - * - * 2001/6/01 - Chad N. Tindel <ctindel at ieee dot org> - * - Added /proc support for getting bond and slave information. - * Information is in /proc/net/<bond device>/info. - * - Changed the locking when calling bond_close to prevent deadlock. - * - * 2001/8/05 - Janice Girouard <girouard at us.ibm.com> - * - correct problem where refcnt of slave is not incremented in bond_ioctl - * so the system hangs when halting. - * - correct locking problem when unable to malloc in bond_enslave. - * - adding bond_xmit_xor logic. - * - adding multiple bond device support. - * - * 2001/8/13 - Erik Habbinga <erik_habbinga at hp dot com> - * - correct locking problem with rtnl_exlock_nowait - * - * 2001/8/23 - Janice Girouard <girouard at us.ibm.com> - * - bzero initial dev_bonds, to correct oops - * - convert SIOCDEVPRIVATE to new MII ioctl calls - * - * 2001/9/13 - Takao Indoh <indou dot takao at jp dot fujitsu dot com> - * - Add the BOND_CHANGE_ACTIVE ioctl implementation - * - * 2001/9/14 - Mark Huth <mhuth at mvista dot com> - * - Change MII_LINK_READY to not check for end of auto-negotiation, - * but only for an up link. - * - * 2001/9/20 - Chad N. Tindel <ctindel at ieee dot org> - * - Add the device field to bonding_t. Previously the net_device - * corresponding to a bond wasn't available from the bonding_t - * structure. - * - * 2001/9/25 - Janice Girouard <girouard at us.ibm.com> - * - add arp_monitor for active backup mode - * - * 2001/10/23 - Takao Indoh <indou dot takao at jp dot fujitsu dot com> - * - Various memory leak fixes - * - * 2001/11/5 - Mark Huth <mark dot huth at mvista dot com> - * - Don't take rtnl lock in bond_mii_monitor as it deadlocks under - * certain hotswap conditions. - * Note: this same change may be required in bond_arp_monitor ??? - * - Remove possibility of calling bond_sethwaddr with NULL slave_dev ptr - * - Handle hot swap ethernet interface deregistration events to remove - * kernel oops following hot swap of enslaved interface - * - * 2002/1/2 - Chad N. Tindel <ctindel at ieee dot org> - * - Restore original slave flags at release time. - * - * 2002/02/18 - Erik Habbinga <erik_habbinga at hp dot com> - * - bond_release(): calling kfree on our_slave after call to - * bond_restore_slave_flags, not before - * - bond_enslave(): saving slave flags into original_flags before - * call to netdev_set_master, so the IFF_SLAVE flag doesn't end - * up in original_flags - * - * 2002/04/05 - Mark Smith <mark.smith at comdev dot cc> and - * Steve Mead <steve.mead at comdev dot cc> - * - Port Gleb Natapov's multicast support patchs from 2.4.12 - * to 2.4.18 adding support for multicast. - * - * 2002/06/10 - Tony Cureington <tony.cureington * hp_com> - * - corrected uninitialized pointer (ifr.ifr_data) in bond_check_dev_link; - * actually changed function to use MIIPHY, then MIIREG, and finally - * ETHTOOL to determine the link status - * - fixed bad ifr_data pointer assignments in bond_ioctl - * - corrected mode 1 being reported as active-backup in bond_get_info; - * also added text to distinguish type of load balancing (rr or xor) - * - change arp_ip_target module param from "1-12s" (array of 12 ptrs) - * to "s" (a single ptr) - * - * 2002/08/30 - Jay Vosburgh <fubar at us dot ibm dot com> - * - Removed acquisition of xmit_lock in set_multicast_list; caused - * deadlock on SMP (lock is held by caller). - * - Revamped SIOCGMIIPHY, SIOCGMIIREG portion of bond_check_dev_link(). - * - * 2002/09/18 - Jay Vosburgh <fubar at us dot ibm dot com> - * - Fixed up bond_check_dev_link() (and callers): removed some magic - * numbers, banished local MII_ defines, wrapped ioctl calls to - * prevent EFAULT errors - * - * 2002/9/30 - Jay Vosburgh <fubar at us dot ibm dot com> - * - make sure the ip target matches the arp_target before saving the - * hw address. - * - * 2002/9/30 - Dan Eisner <eisner at 2robots dot com> - * - make sure my_ip is set before taking down the link, since - * not all switches respond if the source ip is not set. - * - * 2002/10/8 - Janice Girouard <girouard at us dot ibm dot com> - * - read in the local ip address when enslaving a device - * - add primary support - * - make sure 2*arp_interval has passed when a new device - * is brought on-line before taking it down. - * - * 2002/09/11 - Philippe De Muyter <phdm at macqel dot be> - * - Added bond_xmit_broadcast logic. - * - Added bond_mode() support function. - * - * 2002/10/26 - Laurent Deniel <laurent.deniel at free.fr> - * - allow to register multicast addresses only on active slave - * (useful in active-backup mode) - * - add multicast module parameter - * - fix deletion of multicast groups after unloading module - * - * 2002/11/06 - Kameshwara Rayaprolu <kameshwara.rao * wipro_com> - * - Changes to prevent panic from closing the device twice; if we close - * the device in bond_release, we must set the original_flags to down - * so it won't be closed again by the network layer. - * - * 2002/11/07 - Tony Cureington <tony.cureington * hp_com> - * - Fix arp_target_hw_addr memory leak - * - Created activebackup_arp_monitor function to handle arp monitoring - * in active backup mode - the bond_arp_monitor had several problems... - * such as allowing slaves to tx arps sequentially without any delay - * for a response - * - Renamed bond_arp_monitor to loadbalance_arp_monitor and re-wrote - * this function to just handle arp monitoring in load-balancing mode; - * it is a lot more compact now - * - Changes to ensure one and only one slave transmits in active-backup - * mode - * - Robustesize parameters; warn users about bad combinations of - * parameters; also if miimon is specified and a network driver does - * not support MII or ETHTOOL, inform the user of this - * - Changes to support link_failure_count when in arp monitoring mode - * - Fix up/down delay reported in /proc - * - Added version; log version; make version available from "modinfo -d" - * - Fixed problem in bond_check_dev_link - if the first IOCTL (SIOCGMIIPH) - * failed, the ETHTOOL ioctl never got a chance - * - * 2002/11/16 - Laurent Deniel <laurent.deniel at free.fr> - * - fix multicast handling in activebackup_arp_monitor - * - remove one unnecessary and confusing curr_active_slave == slave test - * in activebackup_arp_monitor - * - * 2002/11/17 - Laurent Deniel <laurent.deniel at free.fr> - * - fix bond_slave_info_query when slave_id = num_slaves - * - * 2002/11/19 - Janice Girouard <girouard at us dot ibm dot com> - * - correct ifr_data reference. Update ifr_data reference - * to mii_ioctl_data struct values to avoid confusion. - * - * 2002/11/22 - Bert Barbe <bert.barbe at oracle dot com> - * - Add support for multiple arp_ip_target - * - * 2002/12/13 - Jay Vosburgh <fubar at us dot ibm dot com> - * - Changed to allow text strings for mode and multicast, e.g., - * insmod bonding mode=active-backup. The numbers still work. - * One change: an invalid choice will cause module load failure, - * rather than the previous behavior of just picking one. - * - Minor cleanups; got rid of dup ctype stuff, atoi function - * - * 2003/02/07 - Jay Vosburgh <fubar at us dot ibm dot com> - * - Added use_carrier module parameter that causes miimon to - * use netif_carrier_ok() test instead of MII/ETHTOOL ioctls. - * - Minor cleanups; consolidated ioctl calls to one function. - * - * 2003/02/07 - Tony Cureington <tony.cureington * hp_com> - * - Fix bond_mii_monitor() logic error that could result in - * bonding round-robin mode ignoring links after failover/recovery - * - * 2003/03/17 - Jay Vosburgh <fubar at us dot ibm dot com> - * - kmalloc fix (GFP_KERNEL to GFP_ATOMIC) reported by - * Shmulik dot Hen at intel.com. - * - Based on discussion on mailing list, changed use of - * update_slave_cnt(), created wrapper functions for adding/removing - * slaves, changed bond_xmit_xor() to check slave_cnt instead of - * checking slave and slave->dev (which only worked by accident). - * - Misc code cleanup: get arp_send() prototype from header file, - * add max_bonds to bonding.txt. - * - * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Shmulik Hen <shmulik.hen at intel dot com> - * - Make sure only bond_attach_slave() and bond_detach_slave() can - * manipulate the slave list, including slave_cnt, even when in - * bond_release_all(). - * - Fixed hang in bond_release() with traffic running: - * netdev_set_master() must not be called from within the bond lock. - * - * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Shmulik Hen <shmulik.hen at intel dot com> - * - Fixed hang in bond_enslave() with traffic running: - * netdev_set_master() must not be called from within the bond lock. - * - * 2003/03/18 - Amir Noam <amir.noam at intel dot com> - * - Added support for getting slave's speed and duplex via ethtool. - * Needed for 802.3ad and other future modes. - * - * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Shmulik Hen <shmulik.hen at intel dot com> - * - Enable support of modes that need to use the unique mac address of - * each slave. - * * bond_enslave(): Moved setting the slave's mac address, and - * openning it, from the application to the driver. This breaks - * backward comaptibility with old versions of ifenslave that open - * the slave before enalsving it !!!. - * * bond_release(): The driver also takes care of closing the slave - * and restoring its original mac address. - * - Removed the code that restores all base driver's flags. - * Flags are automatically restored once all undo stages are done - * properly. - * - Block possibility of enslaving before the master is up. This - * prevents putting the system in an unstable state. - * - * 2003/03/18 - Amir Noam <amir.noam at intel dot com>, - * Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Shmulik Hen <shmulik.hen at intel dot com> - * - Added support for IEEE 802.3ad Dynamic link aggregation mode. - * - * 2003/05/01 - Amir Noam <amir.noam at intel dot com> - * - Added ABI version control to restore compatibility between - * new/old ifenslave and new/old bonding. - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Fixed bug in bond_release_all(): save old value of curr_active_slave - * before setting it to NULL. - * - Changed driver versioning scheme to include version number instead - * of release date (that is already in another field). There are 3 - * fields X.Y.Z where: - * X - Major version - big behavior changes - * Y - Minor version - addition of features - * Z - Extra version - minor changes and bug fixes - * The current version is 1.0.0 as a base line. - * - * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and - * Amir Noam <amir.noam at intel dot com> - * - Added support for lacp_rate module param. - * - Code beautification and style changes (mainly in comments). - * new version - 1.0.1 - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Based on discussion on mailing list, changed locking scheme - * to use lock/unlock or lock_bh/unlock_bh appropriately instead - * of lock_irqsave/unlock_irqrestore. The new scheme helps exposing - * hidden bugs and solves system hangs that occurred due to the fact - * that holding lock_irqsave doesn't prevent softirqs from running. - * This also increases total throughput since interrupts are not - * blocked on each transmitted packets or monitor timeout. - * new version - 2.0.0 - * - * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com> - * - Added support for Transmit load balancing mode. - * - Concentrate all assignments of curr_active_slave to a single point - * so specific modes can take actions w |