forcedeth: fix vlans
Jiri Pirko [Tue, 26 Jul 2011 10:19:28 +0000 (10:19 +0000)]
For some reason, when rxaccel is disabled, NV_RX3_VLAN_TAG_PRESENT is
still set and some pseudorandom vids appear. So check for
NETIF_F_HW_VLAN_RX as well. Also set correctly hw_features and set vlan
mode on probe.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/forcedeth.c

index e64cd9c..e55df30 100644 (file)
@@ -2764,7 +2764,14 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
                        prefetch(skb->data);
 
                        vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
-                       if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
+
+                       /*
+                        * There's need to check for NETIF_F_HW_VLAN_RX here.
+                        * Even if vlan rx accel is disabled,
+                        * NV_RX3_VLAN_TAG_PRESENT is pseudo randomly set.
+                        */
+                       if (dev->features & NETIF_F_HW_VLAN_RX &&
+                           vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
                                u16 vid = vlanflags & NV_RX3_VLAN_TAG_MASK;
 
                                __vlan_hwaccel_put_tag(skb, vid);
@@ -5331,15 +5338,16 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
                np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
                dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG |
                        NETIF_F_TSO | NETIF_F_RXCSUM;
-               dev->features |= dev->hw_features;
        }
 
        np->vlanctl_bits = 0;
        if (id->driver_data & DEV_HAS_VLAN) {
                np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
-               dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
+               dev->hw_features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
        }
 
+       dev->features |= dev->hw_features;
+
        np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
        if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
            (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
@@ -5607,6 +5615,8 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
                goto out_error;
        }
 
+       nv_vlan_mode(dev, dev->features);
+
        netif_carrier_off(dev);
 
        dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",