Commit db0ce50d authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller

[E1000]: Secondary unicast address support

Add support for configuring secondary unicast addresses. Unicast
addresses take precendece over multicast addresses when filling
the exact address filters to avoid going to promiscous mode.
When more unicast addresses are present than filter slots,
unicast filtering is disabled and all slots can be used for
multicast addresses.
Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2a887191
...@@ -126,7 +126,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter, ...@@ -126,7 +126,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
struct e1000_tx_ring *tx_ring); struct e1000_tx_ring *tx_ring);
static void e1000_clean_rx_ring(struct e1000_adapter *adapter, static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
struct e1000_rx_ring *rx_ring); struct e1000_rx_ring *rx_ring);
static void e1000_set_multi(struct net_device *netdev); static void e1000_set_rx_mode(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data); static void e1000_update_phy_info(unsigned long data);
static void e1000_watchdog(unsigned long data); static void e1000_watchdog(unsigned long data);
static void e1000_82547_tx_fifo_stall(unsigned long data); static void e1000_82547_tx_fifo_stall(unsigned long data);
...@@ -487,7 +487,7 @@ static void e1000_configure(struct e1000_adapter *adapter) ...@@ -487,7 +487,7 @@ static void e1000_configure(struct e1000_adapter *adapter)
struct net_device *netdev = adapter->netdev; struct net_device *netdev = adapter->netdev;
int i; int i;
e1000_set_multi(netdev); e1000_set_rx_mode(netdev);
e1000_restore_vlan(adapter); e1000_restore_vlan(adapter);
e1000_init_manageability(adapter); e1000_init_manageability(adapter);
...@@ -900,7 +900,7 @@ e1000_probe(struct pci_dev *pdev, ...@@ -900,7 +900,7 @@ e1000_probe(struct pci_dev *pdev,
netdev->stop = &e1000_close; netdev->stop = &e1000_close;
netdev->hard_start_xmit = &e1000_xmit_frame; netdev->hard_start_xmit = &e1000_xmit_frame;
netdev->get_stats = &e1000_get_stats; netdev->get_stats = &e1000_get_stats;
netdev->set_multicast_list = &e1000_set_multi; netdev->set_rx_mode = &e1000_set_rx_mode;
netdev->set_mac_address = &e1000_set_mac; netdev->set_mac_address = &e1000_set_mac;
netdev->change_mtu = &e1000_change_mtu; netdev->change_mtu = &e1000_change_mtu;
netdev->do_ioctl = &e1000_ioctl; netdev->do_ioctl = &e1000_ioctl;
...@@ -2383,21 +2383,22 @@ e1000_set_mac(struct net_device *netdev, void *p) ...@@ -2383,21 +2383,22 @@ e1000_set_mac(struct net_device *netdev, void *p)
} }
/** /**
* e1000_set_multi - Multicast and Promiscuous mode set * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
* @netdev: network interface device structure * @netdev: network interface device structure
* *
* The set_multi entry point is called whenever the multicast address * The set_rx_mode entry point is called whenever the unicast or multicast
* list or the network interface flags are updated. This routine is * address lists or the network interface flags are updated. This routine is
* responsible for configuring the hardware for proper multicast, * responsible for configuring the hardware for proper unicast, multicast,
* promiscuous mode, and all-multi behavior. * promiscuous mode, and all-multi behavior.
**/ **/
static void static void
e1000_set_multi(struct net_device *netdev) e1000_set_rx_mode(struct net_device *netdev)
{ {
struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw; struct e1000_hw *hw = &adapter->hw;
struct dev_mc_list *mc_ptr; struct dev_addr_list *uc_ptr;
struct dev_addr_list *mc_ptr;
uint32_t rctl; uint32_t rctl;
uint32_t hash_value; uint32_t hash_value;
int i, rar_entries = E1000_RAR_ENTRIES; int i, rar_entries = E1000_RAR_ENTRIES;
...@@ -2420,9 +2421,16 @@ e1000_set_multi(struct net_device *netdev) ...@@ -2420,9 +2421,16 @@ e1000_set_multi(struct net_device *netdev)
rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
} else if (netdev->flags & IFF_ALLMULTI) { } else if (netdev->flags & IFF_ALLMULTI) {
rctl |= E1000_RCTL_MPE; rctl |= E1000_RCTL_MPE;
rctl &= ~E1000_RCTL_UPE;
} else { } else {
rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE); rctl &= ~E1000_RCTL_MPE;
}
uc_ptr = NULL;
if (netdev->uc_count > rar_entries - 1) {
rctl |= E1000_RCTL_UPE;
} else if (!(netdev->flags & IFF_PROMISC)) {
rctl &= ~E1000_RCTL_UPE;
uc_ptr = netdev->uc_list;
} }
E1000_WRITE_REG(hw, RCTL, rctl); E1000_WRITE_REG(hw, RCTL, rctl);
...@@ -2432,7 +2440,10 @@ e1000_set_multi(struct net_device *netdev) ...@@ -2432,7 +2440,10 @@ e1000_set_multi(struct net_device *netdev)
if (hw->mac_type == e1000_82542_rev2_0) if (hw->mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter); e1000_enter_82542_rst(adapter);
/* load the first 14 multicast address into the exact filters 1-14 /* load the first 14 addresses into the exact filters 1-14. Unicast
* addresses take precedence to avoid disabling unicast filtering
* when possible.
*
* RAR 0 is used for the station MAC adddress * RAR 0 is used for the station MAC adddress
* if there are not 14 addresses, go ahead and clear the filters * if there are not 14 addresses, go ahead and clear the filters
* -- with 82571 controllers only 0-13 entries are filled here * -- with 82571 controllers only 0-13 entries are filled here
...@@ -2440,8 +2451,11 @@ e1000_set_multi(struct net_device *netdev) ...@@ -2440,8 +2451,11 @@ e1000_set_multi(struct net_device *netdev)
mc_ptr = netdev->mc_list; mc_ptr = netdev->mc_list;
for (i = 1; i < rar_entries; i++) { for (i = 1; i < rar_entries; i++) {
if (mc_ptr) { if (uc_ptr) {
e1000_rar_set(hw, mc_ptr->dmi_addr, i); e1000_rar_set(hw, uc_ptr->da_addr, i);
uc_ptr = uc_ptr->next;
} else if (mc_ptr) {
e1000_rar_set(hw, mc_ptr->da_addr, i);
mc_ptr = mc_ptr->next; mc_ptr = mc_ptr->next;
} else { } else {
E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0); E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
...@@ -2450,6 +2464,7 @@ e1000_set_multi(struct net_device *netdev) ...@@ -2450,6 +2464,7 @@ e1000_set_multi(struct net_device *netdev)
E1000_WRITE_FLUSH(hw); E1000_WRITE_FLUSH(hw);
} }
} }
WARN_ON(uc_ptr != NULL);
/* clear the old settings from the multicast hash table */ /* clear the old settings from the multicast hash table */
...@@ -2461,7 +2476,7 @@ e1000_set_multi(struct net_device *netdev) ...@@ -2461,7 +2476,7 @@ e1000_set_multi(struct net_device *netdev)
/* load any remaining addresses into the hash table */ /* load any remaining addresses into the hash table */
for (; mc_ptr; mc_ptr = mc_ptr->next) { for (; mc_ptr; mc_ptr = mc_ptr->next) {
hash_value = e1000_hash_mc_addr(hw, mc_ptr->dmi_addr); hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr);
e1000_mta_set(hw, hash_value); e1000_mta_set(hw, hash_value);
} }
...@@ -5070,7 +5085,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state) ...@@ -5070,7 +5085,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
if (wufc) { if (wufc) {
e1000_setup_rctl(adapter); e1000_setup_rctl(adapter);
e1000_set_multi(netdev); e1000_set_rx_mode(netdev);
/* turn on all-multi mode if wake on multicast is enabled */ /* turn on all-multi mode if wake on multicast is enabled */
if (wufc & E1000_WUFC_MC) { if (wufc & E1000_WUFC_MC) {
......
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