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path: root/drivers/net/bonding/bond_main.c
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Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r--drivers/net/bonding/bond_main.c63
1 files changed, 61 insertions, 2 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 39575d7..02de3e0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -89,6 +89,7 @@
static int max_bonds = BOND_DEFAULT_MAX_BONDS;
static int num_grat_arp = 1;
+static int num_unsol_na = 1;
static int miimon = BOND_LINK_MON_INTERV;
static int updelay = 0;
static int downdelay = 0;
@@ -96,6 +97,7 @@ static int use_carrier = 1;
static char *mode = NULL;
static char *primary = NULL;
static char *lacp_rate = NULL;
+static char *ad_select = NULL;
static char *xmit_hash_policy = NULL;
static int arp_interval = BOND_LINK_ARP_INTERV;
static char *arp_ip_target[BOND_MAX_ARP_TARGETS] = { NULL, };
@@ -107,6 +109,8 @@ module_param(max_bonds, int, 0);
MODULE_PARM_DESC(max_bonds, "Max number of bonded devices");
module_param(num_grat_arp, int, 0644);
MODULE_PARM_DESC(num_grat_arp, "Number of gratuitous ARP packets to send on failover event");
+module_param(num_unsol_na, int, 0644);
+MODULE_PARM_DESC(num_unsol_na, "Number of unsolicited IPv6 Neighbor Advertisements packets to send on failover event");
module_param(miimon, int, 0);
MODULE_PARM_DESC(miimon, "Link check interval in milliseconds");
module_param(updelay, int, 0);
@@ -127,6 +131,8 @@ MODULE_PARM_DESC(primary, "Primary network device to use");
module_param(lacp_rate, charp, 0);
MODULE_PARM_DESC(lacp_rate, "LACPDU tx rate to request from 802.3ad partner "
"(slow/fast)");
+module_param(ad_select, charp, 0);
+MODULE_PARM_DESC(ad_select, "803.ad aggregation selection logic: stable (0, default), bandwidth (1), count (2)");
module_param(xmit_hash_policy, charp, 0);
MODULE_PARM_DESC(xmit_hash_policy, "XOR hashing method: 0 for layer 2 (default)"
", 1 for layer 3+4");
@@ -197,6 +203,13 @@ struct bond_parm_tbl fail_over_mac_tbl[] = {
{ NULL, -1},
};
+struct bond_parm_tbl ad_select_tbl[] = {
+{ "stable", BOND_AD_STABLE},
+{ "bandwidth", BOND_AD_BANDWIDTH},
+{ "count", BOND_AD_COUNT},
+{ NULL, -1},
+};
+
/*-------------------------- Forward declarations ---------------------------*/
static void bond_send_gratuitous_arp(struct bonding *bond);
@@ -242,14 +255,13 @@ static int bond_add_vlan(struct bonding *bond, unsigned short vlan_id)
dprintk("bond: %s, vlan id %d\n",
(bond ? bond->dev->name: "None"), vlan_id);
- vlan = kmalloc(sizeof(struct vlan_entry), GFP_KERNEL);
+ vlan = kzalloc(sizeof(struct vlan_entry), GFP_KERNEL);
if (!vlan) {
return -ENOMEM;
}
INIT_LIST_HEAD(&vlan->vlan_list);
vlan->vlan_id = vlan_id;
- vlan->vlan_ip = 0;
write_lock_bh(&bond->lock);
@@ -1208,6 +1220,9 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
bond->send_grat_arp = bond->params.num_grat_arp;
bond_send_gratuitous_arp(bond);
+ bond->send_unsol_na = bond->params.num_unsol_na;
+ bond_send_unsolicited_na(bond);
+
write_unlock_bh(&bond->curr_slave_lock);
read_unlock(&bond->lock);
@@ -2463,6 +2478,12 @@ void bond_mii_monitor(struct work_struct *work)
read_unlock(&bond->curr_slave_lock);
}
+ if (bond->send_unsol_na) {
+ read_lock(&bond->curr_slave_lock);
+ bond_send_unsolicited_na(bond);
+ read_unlock(&bond->curr_slave_lock);
+ }
+
if (bond_miimon_inspect(bond)) {
read_unlock(&bond->lock);
rtnl_lock();
@@ -3158,6 +3179,12 @@ void bond_activebackup_arp_mon(struct work_struct *work)
read_unlock(&bond->curr_slave_lock);
}
+ if (bond->send_unsol_na) {
+ read_lock(&bond->curr_slave_lock);
+ bond_send_unsolicited_na(bond);
+ read_unlock(&bond->curr_slave_lock);
+ }
+
if (bond_ab_arp_inspect(bond, delta_in_ticks)) {
read_unlock(&bond->lock);
rtnl_lock();
@@ -3301,6 +3328,8 @@ static void bond_info_show_master(struct seq_file *seq)
seq_puts(seq, "\n802.3ad info\n");
seq_printf(seq, "LACP rate: %s\n",
(bond->params.lacp_fast) ? "fast" : "slow");
+ seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
+ ad_select_tbl[bond->params.ad_select].modename);
if (bond_3ad_get_active_agg_info(bond, &ad_info)) {
seq_printf(seq, "bond %s has no active aggregator\n",
@@ -3807,6 +3836,7 @@ static int bond_open(struct net_device *bond_dev)
queue_delayed_work(bond->wq, &bond->ad_work, 0);
/* register to receive LACPDUs */
bond_register_lacpdu(bond);
+ bond_3ad_initiate_agg_selection(bond, 1);
}
return 0;
@@ -3827,6 +3857,7 @@ static int bond_close(struct net_device *bond_dev)
write_lock_bh(&bond->lock);
bond->send_grat_arp = 0;
+ bond->send_unsol_na = 0;
/* signal timers not to re-arm */
bond->kill_timers = 1;
@@ -4542,6 +4573,7 @@ static int bond_init(struct net_device *bond_dev, struct bond_params *params)
bond->primary_slave = NULL;
bond->dev = bond_dev;
bond->send_grat_arp = 0;
+ bond->send_unsol_na = 0;
bond->setup_by_slave = 0;
INIT_LIST_HEAD(&bond->vlan_list);
@@ -4744,6 +4776,23 @@ static int bond_check_params(struct bond_params *params)
}
}
+ if (ad_select) {
+ params->ad_select = bond_parse_parm(ad_select, ad_select_tbl);
+ if (params->ad_select == -1) {
+ printk(KERN_ERR DRV_NAME
+ ": Error: Invalid ad_select \"%s\"\n",
+ ad_select == NULL ? "NULL" : ad_select);
+ return -EINVAL;
+ }
+
+ if (bond_mode != BOND_MODE_8023AD) {
+ printk(KERN_WARNING DRV_NAME
+ ": ad_select param only affects 802.3ad mode\n");
+ }
+ } else {
+ params->ad_select = BOND_AD_STABLE;
+ }
+
if (max_bonds < 0 || max_bonds > INT_MAX) {
printk(KERN_WARNING DRV_NAME
": Warning: max_bonds (%d) not in range %d-%d, so it "
@@ -4791,6 +4840,13 @@ static int bond_check_params(struct bond_params *params)
num_grat_arp = 1;
}
+ if (num_unsol_na < 0 || num_unsol_na > 255) {
+ printk(KERN_WARNING DRV_NAME
+ ": Warning: num_unsol_na (%d) not in range 0-255 so it "
+ "was reset to 1 \n", num_unsol_na);
+ num_unsol_na = 1;
+ }
+
/* reset values for 802.3ad */
if (bond_mode == BOND_MODE_8023AD) {
if (!miimon) {
@@ -4992,6 +5048,7 @@ static int bond_check_params(struct bond_params *params)
params->xmit_policy = xmit_hashtype;
params->miimon = miimon;
params->num_grat_arp = num_grat_arp;
+ params->num_unsol_na = num_unsol_na;
params->arp_interval = arp_interval;
params->arp_validate = arp_validate_value;
params->updelay = updelay;
@@ -5144,6 +5201,7 @@ static int __init bonding_init(void)
register_netdevice_notifier(&bond_netdev_notifier);
register_inetaddr_notifier(&bond_inetaddr_notifier);
+ bond_register_ipv6_notifier();
goto out;
err:
@@ -5166,6 +5224,7 @@ static void __exit bonding_exit(void)
{
unregister_netdevice_notifier(&bond_netdev_notifier);
unregister_inetaddr_notifier(&bond_inetaddr_notifier);
+ bond_unregister_ipv6_notifier();
bond_destroy_sysfs();
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