ixgb: convert to new VLAN model

Based on a patch from Jesse Gross <jesse@nicira.com>

This switches the ixgb driver to use the new VLAN interfaces.
In doing this, it completes the work begun in
ae54496f9e8d40c89e5668205c181dccfa9ecda1 allowing the use of
hardware VLAN insertion without having a VLAN group configured.

CC: Jesse Gross <jesse@nicira.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 12 insertions, 42 deletions

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 5639cccb493..0f681ac2da8 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -100,8 +100,6 @@ static void ixgb_tx_timeout_task(struct work_struct *work);
 
 static void ixgb_vlan_strip_enable(struct ixgb_adapter *adapter);
 static void ixgb_vlan_strip_disable(struct ixgb_adapter *adapter);
-static void ixgb_vlan_rx_register(struct net_device *netdev,
-                                  struct vlan_group *grp);
 static void ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
 static void ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
 static void ixgb_restore_vlan(struct ixgb_adapter *adapter);
@@ -336,7 +334,6 @@ static const struct net_device_ops ixgb_netdev_ops = {
 	.ndo_set_mac_address	= ixgb_set_mac,
 	.ndo_change_mtu		= ixgb_change_mtu,
 	.ndo_tx_timeout		= ixgb_tx_timeout,
-	.ndo_vlan_rx_register	= ixgb_vlan_rx_register,
 	.ndo_vlan_rx_add_vid	= ixgb_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= ixgb_vlan_rx_kill_vid,
 #ifdef CONFIG_NET_POLL_CONTROLLER
@@ -1508,7 +1505,7 @@ ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
                      DESC_NEEDED)))
 		return NETDEV_TX_BUSY;
 
-	if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
+	if (vlan_tx_tag_present(skb)) {
 		tx_flags |= IXGB_TX_FLAGS_VLAN;
 		vlan_id = vlan_tx_tag_get(skb);
 	}
@@ -2049,12 +2046,11 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do)
 		ixgb_rx_checksum(adapter, rx_desc, skb);
 
 		skb->protocol = eth_type_trans(skb, netdev);
-		if (adapter->vlgrp && (status & IXGB_RX_DESC_STATUS_VP)) {
-			vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
-			                        le16_to_cpu(rx_desc->special));
-		} else {
-			netif_receive_skb(skb);
-		}
+		if (status & IXGB_RX_DESC_STATUS_VP)
+			__vlan_hwaccel_put_tag(skb,
+					       le16_to_cpu(rx_desc->special));
+
+		netif_receive_skb(skb);
 
 rxdesc_done:
 		/* clean up descriptor, might be written over by hw */
@@ -2152,20 +2148,6 @@ map_skb:
 	}
 }
 
-/**
- * ixgb_vlan_rx_register - enables or disables vlan tagging/stripping.
- *
- * @param netdev network interface device structure
- * @param grp indicates to enable or disable tagging/stripping
- **/
-static void
-ixgb_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
-{
-	struct ixgb_adapter *adapter = netdev_priv(netdev);
-
-	adapter->vlgrp = grp;
-}
-
 static void
 ixgb_vlan_strip_enable(struct ixgb_adapter *adapter)
 {
@@ -2200,6 +2182,7 @@ ixgb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
 	vfta |= (1 << (vid & 0x1F));
 	ixgb_write_vfta(&adapter->hw, index, vfta);
+	set_bit(vid, adapter->active_vlans);
 }
 
 static void
@@ -2208,35 +2191,22 @@ ixgb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 	struct ixgb_adapter *adapter = netdev_priv(netdev);
 	u32 vfta, index;
 
-	ixgb_irq_disable(adapter);
-
-	vlan_group_set_device(adapter->vlgrp, vid, NULL);
-
-	/* don't enable interrupts unless we are UP */
-	if (adapter->netdev->flags & IFF_UP)
-		ixgb_irq_enable(adapter);
-
 	/* remove VID from filter table */
 
 	index = (vid >> 5) & 0x7F;
 	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
 	vfta &= ~(1 << (vid & 0x1F));
 	ixgb_write_vfta(&adapter->hw, index, vfta);
+	clear_bit(vid, adapter->active_vlans);
 }
 
 static void
 ixgb_restore_vlan(struct ixgb_adapter *adapter)
 {
-	ixgb_vlan_rx_register(adapter->netdev, adapter->vlgrp);
-
-	if (adapter->vlgrp) {
-		u16 vid;
-		for (vid = 0; vid < VLAN_N_VID; vid++) {
-			if (!vlan_group_get_device(adapter->vlgrp, vid))
-				continue;
-			ixgb_vlan_rx_add_vid(adapter->netdev, vid);
-		}
-	}
+	u16 vid;
+
+	for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
+		ixgb_vlan_rx_add_vid(adapter->netdev, vid);
 }
 
 #ifdef CONFIG_NET_POLL_CONTROLLER