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bonding: initialization rework 

Need to rework how bonding devices are initialized to make it more
amenable to creating bonding devices via netlink.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2009-06-12 19:02:52 +00:00 committed by David S. Miller
parent 5c5129b54f
commit 181470fcf3
1 changed files with 30 additions and 37 deletions
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67
drivers/net/bonding/bond_main.c
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@ -210,6 +210,7 @@ struct bond_parm_tbl ad_select_tbl[] = {
/*-------------------------- Forward declarations ---------------------------*/
static void bond_send_gratuitous_arp(struct bonding *bond);
static int bond_init(struct net_device *bond_dev);
static void bond_deinit(struct net_device *bond_dev);
/*---------------------------- General routines -----------------------------*/
@ -4518,6 +4519,7 @@ static const struct ethtool_ops bond_ethtool_ops = {
};
static const struct net_device_ops bond_netdev_ops = {
.ndo_init = bond_init,
.ndo_uninit = bond_uninit,
.ndo_open = bond_open,
.ndo_stop = bond_close,
@ -4533,38 +4535,22 @@ static const struct net_device_ops bond_netdev_ops = {
.ndo_vlan_rx_kill_vid = bond_vlan_rx_kill_vid,
};
/*
* Does not allocate but creates a /proc entry.
* Allowed to fail.
*/
static int bond_init(struct net_device *bond_dev)
static void bond_setup(struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
pr_debug("Begin bond_init for %s\n", bond_dev->name);
/* initialize rwlocks */
rwlock_init(&bond->lock);
rwlock_init(&bond->curr_slave_lock);
bond->params = bonding_defaults;
bond->wq = create_singlethread_workqueue(bond_dev->name);
if (!bond->wq)
return -ENOMEM;
/* Initialize pointers */
bond->first_slave = NULL;
bond->curr_active_slave = NULL;
bond->current_arp_slave = NULL;
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);
/* Initialize the device entry points */
ether_setup(bond_dev);
bond_dev->netdev_ops = &bond_netdev_ops;
bond_dev->ethtool_ops = &bond_ethtool_ops;
bond_set_mode_ops(bond, bond->params.mode);
@ -4575,6 +4561,8 @@ static int bond_init(struct net_device *bond_dev)
bond_dev->tx_queue_len = 0;
bond_dev->flags |= IFF_MASTER|IFF_MULTICAST;
bond_dev->priv_flags |= IFF_BONDING;
bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
if (bond->params.arp_interval)
bond_dev->priv_flags |= IFF_MASTER_ARPMON;
@ -4599,10 +4587,6 @@ static int bond_init(struct net_device *bond_dev)
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER);
bond_create_proc_entry(bond);
list_add_tail(&bond->bond_list, &bond_dev_list);
return 0;
}
static void bond_work_cancel_all(struct bonding *bond)
@ -5056,6 +5040,29 @@ static void bond_set_lockdep_class(struct net_device *dev)
netdev_for_each_tx_queue(dev, bond_set_lockdep_class_one, NULL);
}
/*
* Called from registration process
*/
static int bond_init(struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
pr_debug("Begin bond_init for %s\n", bond_dev->name);
bond->wq = create_singlethread_workqueue(bond_dev->name);
if (!bond->wq)
return -ENOMEM;
bond_set_lockdep_class(bond_dev);
netif_carrier_off(bond_dev);
bond_create_proc_entry(bond);
list_add_tail(&bond->bond_list, &bond_dev_list);
return 0;
}
/* Create a new bond based on the specified name and bonding parameters.
* If name is NULL, obtain a suitable "bond%d" name for us.
* Caller must NOT hold rtnl_lock; we need to release it here before we
@ -5077,7 +5084,7 @@ int bond_create(const char *name)
}
bond_dev = alloc_netdev(sizeof(struct bonding), name ? name : "",
ether_setup);
bond_setup);
if (!bond_dev) {
pr_err(DRV_NAME ": %s: eek! can't alloc netdev!\n",
name);
@ -5085,26 +5092,12 @@ int bond_create(const char *name)
goto out_rtnl;
}
bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
if (!name) {
res = dev_alloc_name(bond_dev, "bond%d");
if (res < 0)
goto out_netdev;
}
/* bond_init() must be called after dev_alloc_name() (for the
* /proc files), but before register_netdevice(), because we
* need to set function pointers.
*/
res = bond_init(bond_dev);
if (res < 0)
goto out_netdev;
bond_set_lockdep_class(bond_dev);
netif_carrier_off(bond_dev);
res = register_netdevice(bond_dev);
if (res < 0)
goto out_bond;