int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
unsigned char multicast_spec, u8 protocol_version)
{
struct hsr_priv *hsr;
struct hsr_port *port;
int res;
hsr = netdev_priv(hsr_dev);
INIT_LIST_HEAD(&hsr->ports);
INIT_LIST_HEAD(&hsr->node_db);
INIT_LIST_HEAD(&hsr->self_node_db);
ether_addr_copy(hsr_dev->dev_addr, slave[0]->dev_addr);
/* Make sure we recognize frames from ourselves in hsr_rcv() */
res = hsr_create_self_node(&hsr->self_node_db, hsr_dev->dev_addr,
slave[1]->dev_addr);
if (res < 0)
return res;
spin_lock_init(&hsr->seqnr_lock);
/* Overflow soon to find bugs easier: */
hsr->sequence_nr = HSR_SEQNR_START;
hsr->sup_sequence_nr = HSR_SUP_SEQNR_START;
init_timer(&hsr->announce_timer);
hsr->announce_timer.function = hsr_announce;
hsr->announce_timer.data = (unsigned long) hsr;
init_timer(&hsr->prune_timer);
hsr->prune_timer.function = hsr_prune_nodes;
hsr->prune_timer.data = (unsigned long) hsr;
ether_addr_copy(hsr->sup_multicast_addr, def_multicast_addr);
hsr->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec;
hsr->protVersion = protocol_version;
/* FIXME: should I modify the value of these?
*
* - hsr_dev->flags - i.e.
* IFF_MASTER/SLAVE?
* - hsr_dev->priv_flags - i.e.
* IFF_EBRIDGE?
* IFF_TX_SKB_SHARING?
* IFF_HSR_MASTER/SLAVE?
*/
/* Make sure the 1st call to netif_carrier_on() gets through */
netif_carrier_off(hsr_dev);
res = hsr_add_port(hsr, hsr_dev, HSR_PT_MASTER);
if (res)
return res;
res = register_netdevice(hsr_dev);
if (res)
goto fail;
res = hsr_add_port(hsr, slave[0], HSR_PT_SLAVE_A);
if (res)
goto fail;
res = hsr_add_port(hsr, slave[1], HSR_PT_SLAVE_B);
if (res)
goto fail;
hsr->prune_timer.expires = jiffies + msecs_to_jiffies(PRUNE_PERIOD);
add_timer(&hsr->prune_timer);
return 0;
fail:
hsr_for_each_port(hsr, port)
hsr_del_port(port);
return res;
}
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
unsigned char multicast_spec)
{
struct hsr_priv *hsr_priv;
int i;
int res;
hsr_priv = netdev_priv(hsr_dev);
hsr_priv->dev = hsr_dev;
INIT_LIST_HEAD(&hsr_priv->node_db);
INIT_LIST_HEAD(&hsr_priv->self_node_db);
for (i = 0; i < HSR_MAX_SLAVE; i++)
hsr_priv->slave[i] = slave[i];
spin_lock_init(&hsr_priv->seqnr_lock);
/* Overflow soon to find bugs easier: */
hsr_priv->sequence_nr = USHRT_MAX - 1024;
init_timer(&hsr_priv->announce_timer);
hsr_priv->announce_timer.function = hsr_announce;
hsr_priv->announce_timer.data = (unsigned long) hsr_priv;
ether_addr_copy(hsr_priv->sup_multicast_addr, def_multicast_addr);
hsr_priv->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec;
/* FIXME: should I modify the value of these?
*
* - hsr_dev->flags - i.e.
* IFF_MASTER/SLAVE?
* - hsr_dev->priv_flags - i.e.
* IFF_EBRIDGE?
* IFF_TX_SKB_SHARING?
* IFF_HSR_MASTER/SLAVE?
*/
for (i = 0; i < HSR_MAX_SLAVE; i++) {
res = check_slave_ok(slave[i]);
if (res)
return res;
}
hsr_dev->features = slave[0]->features & slave[1]->features;
/* Prevent recursive tx locking */
hsr_dev->features |= NETIF_F_LLTX;
/* VLAN on top of HSR needs testing and probably some work on
* hsr_header_create() etc.
*/
hsr_dev->features |= NETIF_F_VLAN_CHALLENGED;
/* Set hsr_dev's MAC address to that of mac_slave1 */
ether_addr_copy(hsr_dev->dev_addr, hsr_priv->slave[0]->dev_addr);
/* Set required header length */
for (i = 0; i < HSR_MAX_SLAVE; i++) {
if (slave[i]->hard_header_len + HSR_TAGLEN >
hsr_dev->hard_header_len)
hsr_dev->hard_header_len =
slave[i]->hard_header_len + HSR_TAGLEN;
}
/* MTU */
for (i = 0; i < HSR_MAX_SLAVE; i++)
if (slave[i]->mtu - HSR_TAGLEN < hsr_dev->mtu)
hsr_dev->mtu = slave[i]->mtu - HSR_TAGLEN;
/* Make sure the 1st call to netif_carrier_on() gets through */
netif_carrier_off(hsr_dev);
/* Promiscuity */
for (i = 0; i < HSR_MAX_SLAVE; i++) {
res = dev_set_promiscuity(slave[i], 1);
if (res) {
netdev_info(hsr_dev, "Cannot set slave promiscuity (%s, %d)\n",
slave[i]->name, res);
goto fail;
}
}
/* Make sure we recognize frames from ourselves in hsr_rcv() */
res = hsr_create_self_node(&hsr_priv->self_node_db,
hsr_dev->dev_addr,
hsr_priv->slave[1]->dev_addr);
if (res < 0)
goto fail;
res = register_netdevice(hsr_dev);
if (res)
goto fail;
register_hsr_master(hsr_priv);
return 0;
fail:
restore_slaves(hsr_dev);
return res;
}