netdrv intel: disable VLAN filtering in promiscous mode

As discussed in this thread:

http://www.mail-archive.com/netdev@vger.kernel.org/msg53976.html

promiscous mode means to disable *all* filters. Currently only unicast
and multicast filtering is disabled. This patch changes all Intel
drivers to also disable VLAN filtering.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 7aa458f..80e3a65 100644 (file)
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2477,10 +2477,15 @@ e1000_set_rx_mode(struct net_device *netdev)
 
        if (netdev->flags & IFF_PROMISC) {
                rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
-       } else if (netdev->flags & IFF_ALLMULTI) {
-               rctl |= E1000_RCTL_MPE;
+               rctl &= ~E1000_RCTL_VFE;
        } else {
-               rctl &= ~E1000_RCTL_MPE;
+               if (netdev->flags & IFF_ALLMULTI) {
+                       rctl |= E1000_RCTL_MPE;
+               } else {
+                       rctl &= ~E1000_RCTL_MPE;
+               }
+               if (adapter->vlgrp && adapter->hw.mac_type != e1000_ich8lan)
+                       rctl |= E1000_RCTL_VFE;
        }
 
        uc_ptr = NULL;
@@ -4962,7 +4967,8 @@ e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
                if (adapter->hw.mac_type != e1000_ich8lan) {
                        /* enable VLAN receive filtering */
                        rctl = E1000_READ_REG(&adapter->hw, RCTL);
-                       rctl |= E1000_RCTL_VFE;
+                       if (!(netdev->flags & IFF_PROMISC))
+                               rctl |= E1000_RCTL_VFE;
                        rctl &= ~E1000_RCTL_CFIEN;
                        E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
                        e1000_update_mng_vlan(adapter);

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 80592bd..3fe6026 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -1792,7 +1792,8 @@ static void e1000_vlan_rx_register(struct net_device *netdev,
                if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
                        /* enable VLAN receive filtering */
                        rctl = er32(RCTL);
-                       rctl |= E1000_RCTL_VFE;
+                       if (!(netdev->flags & IFF_PROMISC))
+                               rctl |= E1000_RCTL_VFE;
                        rctl &= ~E1000_RCTL_CFIEN;
                        ew32(RCTL, rctl);
                        e1000_update_mng_vlan(adapter);
@@ -2230,11 +2231,16 @@ static void e1000_set_multi(struct net_device *netdev)
 
        if (netdev->flags & IFF_PROMISC) {
                rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
-       } else if (netdev->flags & IFF_ALLMULTI) {
-               rctl |= E1000_RCTL_MPE;
-               rctl &= ~E1000_RCTL_UPE;
+               rctl &= ~E1000_RCTL_VFE;
        } else {
-               rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+               if (netdev->flags & IFF_ALLMULTI) {
+                       rctl |= E1000_RCTL_MPE;
+                       rctl &= ~E1000_RCTL_UPE;
+               } else {
+                       rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+               }
+               if (adapter->vlgrp && adapter->flags & FLAG_HAS_HW_VLAN_FILTER)
+                       rctl |= E1000_RCTL_VFE;
        }
 
        ew32(RCTL, rctl);

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index aaed129..1ab8e3e 100644 (file)
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2268,14 +2268,18 @@ static void igb_set_multi(struct net_device *netdev)
 
        rctl = rd32(E1000_RCTL);
 
-       if (netdev->flags & IFF_PROMISC)
+       if (netdev->flags & IFF_PROMISC) {
                rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
-       else if (netdev->flags & IFF_ALLMULTI) {
-               rctl |= E1000_RCTL_MPE;
-               rctl &= ~E1000_RCTL_UPE;
-       } else
-               rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
-
+               rctl &= ~E1000_RCTL_VFE;
+       } else {
+               if (netdev->flags & IFF_ALLMULTI) {
+                       rctl |= E1000_RCTL_MPE;
+                       rctl &= ~E1000_RCTL_UPE;
+               } else
+                       rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+               if (adapter->vlgrp)
+                       rctl |= E1000_RCTL_VFE;
+       }
        wr32(E1000_RCTL, rctl);
 
        if (!netdev->mc_count) {
@@ -4220,7 +4224,8 @@ static void igb_vlan_rx_register(struct net_device *netdev,
 
                /* enable VLAN receive filtering */
                rctl = rd32(E1000_RCTL);
-               rctl |= E1000_RCTL_VFE;
+               if (!(netdev->flags & IFF_PROMISC))
+                       rctl |= E1000_RCTL_VFE;
                rctl &= ~E1000_RCTL_CFIEN;
                wr32(E1000_RCTL, rctl);
                igb_update_mng_vlan(adapter);

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index e83feaf..ec95cd4 100644 (file)
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1053,11 +1053,16 @@ ixgb_set_multi(struct net_device *netdev)
 
        if (netdev->flags & IFF_PROMISC) {
                rctl |= (IXGB_RCTL_UPE | IXGB_RCTL_MPE);
-       } else if (netdev->flags & IFF_ALLMULTI) {
-               rctl |= IXGB_RCTL_MPE;
-               rctl &= ~IXGB_RCTL_UPE;
+               rctl &= ~IXGB_RCTL_VFE;
        } else {
-               rctl &= ~(IXGB_RCTL_UPE | IXGB_RCTL_MPE);
+               if (netdev->flags & IFF_ALLMULTI) {
+                       rctl |= IXGB_RCTL_MPE;
+                       rctl &= ~IXGB_RCTL_UPE;
+               } else {
+                       rctl &= ~(IXGB_RCTL_UPE | IXGB_RCTL_MPE);
+               }
+               if (adapter->vlgrp)
+                       rctl |= IXGB_RCTL_VFE;
        }
 
        if (netdev->mc_count > IXGB_MAX_NUM_MULTICAST_ADDRESSES) {
@@ -2104,7 +2109,8 @@ ixgb_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
                /* enable VLAN receive filtering */
 
                rctl = IXGB_READ_REG(&adapter->hw, RCTL);
-               rctl |= IXGB_RCTL_VFE;
+               if (!(netdev->flags & IFF_PROMISC))
+                       rctl |= IXGB_RCTL_VFE;
                rctl &= ~IXGB_RCTL_CFIEN;
                IXGB_WRITE_REG(&adapter->hw, RCTL, rctl);
        } else {

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 10a1c8c..afe3a1c 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1574,7 +1574,9 @@ static void ixgbe_vlan_rx_register(struct net_device *netdev,
        if (grp) {
                /* enable VLAN tag insert/strip */
                ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
-               ctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE;
+               ctrl |= IXGBE_VLNCTRL_VME;
+               if (!(netdev->flags & IFF_PROMISC))
+                       ctrl |= IXGBE_VLNCTRL_VFE;
                ctrl &= ~IXGBE_VLNCTRL_CFIEN;
                IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
        }
@@ -1645,11 +1647,16 @@ static void ixgbe_set_multi(struct net_device *netdev)
 
        if (netdev->flags & IFF_PROMISC) {
                fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
-       } else if (netdev->flags & IFF_ALLMULTI) {
-               fctrl |= IXGBE_FCTRL_MPE;
-               fctrl &= ~IXGBE_FCTRL_UPE;
+               fctrl &= ~IXGBE_VLNCTRL_VFE;
        } else {
-               fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
+               if (netdev->flags & IFF_ALLMULTI) {
+                       fctrl |= IXGBE_FCTRL_MPE;
+                       fctrl &= ~IXGBE_FCTRL_UPE;
+               } else {
+                       fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
+               }
+               if (adapter->vlgrp)
+                       fctrl |= IXGBE_VLNCTRL_VFE;
        }
 
        IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);