atl2: do vlan cleanup

- unify vlan and nonvlan rx path
- kill adapter->vlgrp and atl2_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool (set_features)

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

2 files changed, 48 insertions, 33 deletions

diff --git a/drivers/net/atlx/atl2.c b/drivers/net/atlx/atl2.c
index 24e15926cee..e0f87cf1e2b 100644
--- a/drivers/net/atlx/atl2.c
+++ b/drivers/net/atlx/atl2.c
@@ -361,36 +361,59 @@ static inline void atl2_irq_disable(struct atl2_adapter *adapter)
     synchronize_irq(adapter->pdev->irq);
 }
 
-#ifdef NETIF_F_HW_VLAN_TX
-static void atl2_vlan_rx_register(struct net_device *netdev,
-        struct vlan_group *grp)
+static void __atl2_vlan_mode(u32 features, u32 *ctrl)
+{
+        if (features & NETIF_F_HW_VLAN_RX) {
+                /* enable VLAN tag insert/strip */
+                *ctrl |= MAC_CTRL_RMV_VLAN;
+        } else {
+                /* disable VLAN tag insert/strip */
+                *ctrl &= ~MAC_CTRL_RMV_VLAN;
+        }
+}
+
+static void atl2_vlan_mode(struct net_device *netdev, u32 features)
 {
         struct atl2_adapter *adapter = netdev_priv(netdev);
         u32 ctrl;
 
         atl2_irq_disable(adapter);
-        adapter->vlgrp = grp;
 
-        if (grp) {
-                /* enable VLAN tag insert/strip */
-                ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL);
-                ctrl |= MAC_CTRL_RMV_VLAN;
-                ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl);
-        } else {
-                /* disable VLAN tag insert/strip */
-                ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL);
-                ctrl &= ~MAC_CTRL_RMV_VLAN;
-                ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl);
-        }
+        ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL);
+        __atl2_vlan_mode(features, &ctrl);
+        ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl);
 
         atl2_irq_enable(adapter);
 }
 
 static void atl2_restore_vlan(struct atl2_adapter *adapter)
 {
-        atl2_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+        atl2_vlan_mode(adapter->netdev, adapter->netdev->features);
+}
+
+static u32 atl2_fix_features(struct net_device *netdev, u32 features)
+{
+        /*
+         * Since there is no support for separate rx/tx vlan accel
+         * enable/disable make sure tx flag is always in same state as rx.
+         */
+        if (features & NETIF_F_HW_VLAN_RX)
+                features |= NETIF_F_HW_VLAN_TX;
+        else
+                features &= ~NETIF_F_HW_VLAN_TX;
+
+        return features;
+}
+
+static int atl2_set_features(struct net_device *netdev, u32 features)
+{
+        u32 changed = netdev->features ^ features;
+
+        if (changed & NETIF_F_HW_VLAN_RX)
+                atl2_vlan_mode(netdev, features);
+
+        return 0;
 }
-#endif
 
 static void atl2_intr_rx(struct atl2_adapter *adapter)
 {
@@ -424,14 +447,13 @@ static void atl2_intr_rx(struct atl2_adapter *adapter)
                         memcpy(skb->data, rxd->packet, rx_size);
                         skb_put(skb, rx_size);
                         skb->protocol = eth_type_trans(skb, netdev);
-#ifdef NETIF_F_HW_VLAN_TX
-                        if (adapter->vlgrp && (rxd->status.vlan)) {
+                        if (rxd->status.vlan) {
                                 u16 vlan_tag = (rxd->status.vtag>>4) |
                                         ((rxd->status.vtag&7) << 13) |
                                         ((rxd->status.vtag&8) << 9);
-                                vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag);
-                        } else
-#endif
+
+                                __vlan_hwaccel_put_tag(skb, vlan_tag);
+                        }
                         netif_rx(skb);
                         netdev->stats.rx_bytes += rx_size;
                         netdev->stats.rx_packets++;
@@ -704,9 +726,7 @@ static int atl2_open(struct net_device *netdev)
         atl2_set_multi(netdev);
         init_ring_ptrs(adapter);
 
-#ifdef NETIF_F_HW_VLAN_TX
         atl2_restore_vlan(adapter);
-#endif
 
         if (atl2_configure(adapter)) {
                 err = -EIO;
@@ -1082,9 +1102,7 @@ static int atl2_up(struct atl2_adapter *adapter)
         atl2_set_multi(netdev);
         init_ring_ptrs(adapter);
 
-#ifdef NETIF_F_HW_VLAN_TX
         atl2_restore_vlan(adapter);
-#endif
 
         if (atl2_configure(adapter)) {
                 err = -EIO;
@@ -1145,8 +1163,7 @@ static void atl2_setup_mac_ctrl(struct atl2_adapter *adapter)
                 MAC_CTRL_PRMLEN_SHIFT);
 
         /* vlan */
-        if (adapter->vlgrp)
-                value |= MAC_CTRL_RMV_VLAN;
+        __atl2_vlan_mode(netdev->features, &value);
 
         /* filter mode */
         value |= MAC_CTRL_BC_EN;
@@ -1312,9 +1329,10 @@ static const struct net_device_ops atl2_netdev_ops = {
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_set_mac_address    = atl2_set_mac,
         .ndo_change_mtu         = atl2_change_mtu,
+        .ndo_fix_features       = atl2_fix_features,
+        .ndo_set_features       = atl2_set_features,
         .ndo_do_ioctl           = atl2_ioctl,
         .ndo_tx_timeout         = atl2_tx_timeout,
-        .ndo_vlan_rx_register   = atl2_vlan_rx_register,
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_poll_controller    = atl2_poll_controller,
 #endif
@@ -1410,7 +1428,7 @@ static int __devinit atl2_probe(struct pci_dev *pdev,
 
         err = -EIO;
 
-        netdev->hw_features = NETIF_F_SG;
+        netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_RX;
         netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
 
         /* Init PHY as early as possible due to power saving issue  */
diff --git a/drivers/net/atlx/atl2.h b/drivers/net/atlx/atl2.h
index 927e4de6474..78344ddf4bf 100644
--- a/drivers/net/atlx/atl2.h
+++ b/drivers/net/atlx/atl2.h
@@ -453,9 +453,6 @@ struct atl2_adapter {
         /* OS defined structs */
         struct net_device *netdev;
         struct pci_dev *pdev;
-#ifdef NETIF_F_HW_VLAN_TX
-        struct vlan_group *vlgrp;
-#endif
         u32 wol;
         u16 link_speed;
         u16 link_duplex;