/***********************************************************
* mv_eth_start -- *
* start a network device. connect and enable interrupts *
* set hw defaults. fill rx buffers. restart phy link *
* auto neg. set device link flags. report status. *
***********************************************************/
static int mv_eth_start(struct net_device *dev)
{
struct eth_port *priv = MV_ETH_PRIV(dev);
int group;
/* in default link is down */
netif_carrier_off(dev);
/* Stop the TX queue - it will be enabled upon PHY status change after link-up interrupt/timer */
netif_tx_stop_all_queues(dev);
/* fill rx buffers, start rx/tx activity, set coalescing */
if (mv_eth_start_internals(priv, dev->mtu) != 0) {
printk(KERN_ERR "%s: start internals failed\n", dev->name);
goto error;
}
/* enable polling on the port, must be used after netif_poll_disable */
if (priv->flags & MV_ETH_F_CONNECT_LINUX)
for (group = 0; group < CONFIG_MV_ETH_NAPI_GROUPS; group++)
napi_enable(priv->napiGroup[group]);
if ((priv->flags & MV_ETH_F_LINK_UP) && !(priv->flags & MV_ETH_F_EXT_SWITCH)) {
if (mv_eth_ctrl_is_tx_enabled(priv)) {
netif_carrier_on(dev);
netif_tx_wake_all_queues(dev);
}
printk(KERN_NOTICE "%s: link up\n", dev->name);
}
#ifdef CONFIG_MV_ETH_SWITCH_LINK
if (priv->flags & MV_ETH_F_EXT_SWITCH) {
struct eth_netdev *dev_priv = MV_DEV_PRIV(dev);
dev_priv->link_map = 0;
mv_switch_link_update_event(dev_priv->port_map, 1);
}
#endif /* CONFIG_MV_ETH_SWITCH_LINK */
if (priv->flags & MV_ETH_F_CONNECT_LINUX) {
/* connect to port interrupt line */
if (request_irq(dev->irq, mv_eth_isr, (IRQF_DISABLED|IRQF_SAMPLE_RANDOM), "mv_eth", priv)) {
printk(KERN_ERR "cannot request irq %d for %s port %d\n", dev->irq, dev->name, priv->port);
if (priv->flags & MV_ETH_F_CONNECT_LINUX)
napi_disable(priv->napiGroup[CPU_GROUP_DEF]);
goto error;
}
/* unmask interrupts */
mv_eth_interrupts_unmask(priv);
smp_call_function_many(cpu_online_mask, (smp_call_func_t)mv_eth_interrupts_unmask, (void *)priv, 1);
printk(KERN_NOTICE "%s: started\n", dev->name);
}
return 0;
error:
printk(KERN_ERR "%s: start failed\n", dev->name);
return -1;
}
/******************************************************************************
* mv_eth_tool_get_link
* Description:
* ethtool get link status
* INPUT:
* netdev Network device structure pointer
* OUTPUT
* None
* RETURN:
* 0 if link is down, 1 if link is up
*
*******************************************************************************/
u32 mv_eth_tool_get_link(struct net_device *netdev)
{
struct eth_port *pp = MV_ETH_PRIV(netdev);
struct eth_netdev *dev_priv = MV_DEV_PRIV(netdev);
if (pp == NULL) {
printk(KERN_ERR "interface %s is not supported\n", netdev->name);
return -EOPNOTSUPP;
}
if (isSwitch(pp)) {
if (dev_priv == NULL)
return -EOPNOTSUPP;
return (dev_priv->link_map != 0);
}
#ifdef CONFIG_MV_PON
if (MV_PON_PORT(pp->port))
return mv_pon_link_status();
#endif /* CONFIG_MV_PON */
return mvNetaLinkIsUp(pp->port);
}
int mv_eth_switch_set_mac_addr(struct net_device *dev, void *mac)
{
struct eth_netdev *dev_priv = MV_DEV_PRIV(dev);
struct sockaddr *addr = (struct sockaddr *)mac;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
/* remove old mac addr from VLAN DB */
mv_switch_mac_addr_set(dev->dev_addr, MV_SWITCH_VLAN_TO_GROUP(dev_priv->vlan_grp_id), (1 << dev_priv->cpu_port), 0);
memcpy(dev->dev_addr, addr->sa_data, MV_MAC_ADDR_SIZE);
/* add new mac addr to VLAN DB */
mv_switch_mac_addr_set(dev->dev_addr, MV_SWITCH_VLAN_TO_GROUP(dev_priv->vlan_grp_id), (1 << dev_priv->cpu_port), 1);
printk(KERN_ERR "mv_eth_switch: %s change mac address to %02x:%02x:%02x:%02x:%02x:%02x\n",
dev->name, *(dev->dev_addr), *(dev->dev_addr+1), *(dev->dev_addr+2),
*(dev->dev_addr+3), *(dev->dev_addr+4), *(dev->dev_addr+5));
return 0;
}
void mv_eth_switch_set_multicast_list(struct net_device *dev)
{
struct eth_netdev *dev_priv = MV_DEV_PRIV(dev);
if (dev->flags & IFF_PROMISC) {
/* promiscuous mode - connect the CPU port to the VLAN (port based + 802.1q) */
/* printk(KERN_ERR "mv_eth_switch: setting promiscuous mode\n"); */
if (mv_switch_promisc_set(dev_priv->vlan_grp_id, dev_priv->port_map, dev_priv->cpu_port, 1))
printk(KERN_ERR "mv_switch_promisc_set to 1 failed\n");
} else {
/* not in promiscuous mode - disconnect the CPU port to the VLAN (port based + 802.1q) */
if (mv_switch_promisc_set(dev_priv->vlan_grp_id, dev_priv->port_map, dev_priv->cpu_port, 0))
printk(KERN_ERR "mv_switch_promisc_set to 0 failed\n");
if (dev->flags & IFF_ALLMULTI) {
/* allmulticast - not supported. There is no way to tell the Switch to accept only */
/* the multicast addresses but not Unicast addresses, so the alternatives are: */
/* 1) Don't support multicast and do nothing */
/* 2) Support multicast with same implementation as promiscuous */
/* 3) Don't rely on Switch for MAC filtering, but use PnC */
/* Currently option 1 is selected */
printk(KERN_ERR "mv_eth_switch: setting all-multicast mode is not supported\n");
}
/* Add or delete specific multicast addresses: */
/* Linux provides a list of the current multicast addresses for the device. */
/* First, we delete all the multicast addresses in the ATU. */
/* Then we add the specific multicast addresses Linux provides. */
if (mv_switch_all_multicasts_del(MV_SWITCH_VLAN_TO_GROUP(dev_priv->vlan_grp_id)))
printk(KERN_ERR "mv_eth_switch: mv_switch_all_multicasts_del failed\n");
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 34)
if (!netdev_mc_empty(dev)) {
struct netdev_hw_addr *ha;
netdev_for_each_mc_addr(ha, dev) {
mv_switch_mac_addr_set(ha->addr,
MV_SWITCH_VLAN_TO_GROUP(dev_priv->vlan_grp_id),
(dev_priv->port_map | (1 << dev_priv->cpu_port)), 1);
}
}
#else
{
int i;
struct dev_mc_list *curr_addr = dev->mc_list;
/* accept specific multicasts */
for (i = 0; i < dev->mc_count; i++, curr_addr = curr_addr->next) {
if (!curr_addr)
break;
/*
printk(KERN_ERR "Setting MC = %02X:%02X:%02X:%02X:%02X:%02X\n",
curr_addr->dmi_addr[0], curr_addr->dmi_addr[1], curr_addr->dmi_addr[2],
curr_addr->dmi_addr[3], curr_addr->dmi_addr[4], curr_addr->dmi_addr[5]);
*/
mv_switch_mac_addr_set(curr_addr->dmi_addr,
MV_SWITCH_VLAN_TO_GROUP(dev_priv->vlan_grp_id),
(dev_priv->port_map | (1 << dev_priv->cpu_port)), 1);
}
}
#endif /* KERNEL_VERSION >= 2.6.34 */
}
