tg3: Use new VLAN code

This patch pivots the tg3 driver to the new VLAN infrastructure.
All references to vlgrp have been removed.  The driver still attempts to
disable VLAN tag stripping if CONFIG_VLAN_8021Q or
CONFIG_VLAN_8021Q_MODULE is not defined.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: Matt Carlson

drivers/net/tg3.c

@@ -60,12 +60,6 @@
 #define BAR_0	0
 #define BAR_2	2
 
-#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
-#define TG3_VLAN_TAG_USED 1
-#else
-#define TG3_VLAN_TAG_USED 0
-#endif
-
 #include "tg3.h"
 
 #define DRV_MODULE_NAME		"tg3"
@@ -134,9 +128,6 @@
 				 TG3_TX_RING_SIZE)
 #define NEXT_TX(N)		(((N) + 1) & (TG3_TX_RING_SIZE - 1))
 
-#define TG3_RX_DMA_ALIGN		16
-#define TG3_RX_HEADROOM			ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN)
-
 #define TG3_DMA_BYTE_ENAB		64
 
 #define TG3_RX_STD_DMA_SZ		1536
@@ -4722,8 +4713,6 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 		struct sk_buff *skb;
 		dma_addr_t dma_addr;
 		u32 opaque_key, desc_idx, *post_ptr;
-		bool hw_vlan __maybe_unused = false;
-		u16 vtag __maybe_unused = 0;
 
 		desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
 		opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
@@ -4782,12 +4771,12 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 			tg3_recycle_rx(tnapi, tpr, opaque_key,
 				       desc_idx, *post_ptr);
 
-			copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN +
+			copy_skb = netdev_alloc_skb(tp->dev, len +
 						    TG3_RAW_IP_ALIGN);
 			if (copy_skb == NULL)
 				goto drop_it_no_recycle;
 
-			skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN);
+			skb_reserve(copy_skb, TG3_RAW_IP_ALIGN);
 			skb_put(copy_skb, len);
 			pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
 			skb_copy_from_linear_data(skb, copy_skb->data, len);
@@ -4814,30 +4803,11 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 		}
 
 		if (desc->type_flags & RXD_FLAG_VLAN &&
-		    !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) {
-			vtag = desc->err_vlan & RXD_VLAN_MASK;
-#if TG3_VLAN_TAG_USED
-			if (tp->vlgrp)
-				hw_vlan = true;
-			else
-#endif
-			{
-				struct vlan_ethhdr *ve = (struct vlan_ethhdr *)
-						    __skb_push(skb, VLAN_HLEN);
-
-				memmove(ve, skb->data + VLAN_HLEN,
-					ETH_ALEN * 2);
-				ve->h_vlan_proto = htons(ETH_P_8021Q);
-				ve->h_vlan_TCI = htons(vtag);
-			}
-		}
+		    !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG))
+			__vlan_hwaccel_put_tag(skb,
+					       desc->err_vlan & RXD_VLAN_MASK);
 
-#if TG3_VLAN_TAG_USED
-		if (hw_vlan)
-			vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb);
-		else
-#endif
-			napi_gro_receive(&tnapi->napi, skb);
+		napi_gro_receive(&tnapi->napi, skb);
 
 		received++;
 		budget--;
@@ -5740,11 +5710,9 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
 		base_flags |= TXD_FLAG_TCPUDP_CSUM;
 	}
 
-#if TG3_VLAN_TAG_USED
 	if (vlan_tx_tag_present(skb))
 		base_flags |= (TXD_FLAG_VLAN |
 			       (vlan_tx_tag_get(skb) << 16));
-#endif
 
 	len = skb_headlen(skb);
 
@@ -5986,11 +5954,10 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
 			}
 		}
 	}
-#if TG3_VLAN_TAG_USED
+
 	if (vlan_tx_tag_present(skb))
 		base_flags |= (TXD_FLAG_VLAN |
 			       (vlan_tx_tag_get(skb) << 16));
-#endif
 
 	if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
 	    !mss && skb->len > VLAN_ETH_FRAME_LEN)
@@ -9532,17 +9499,10 @@ static void __tg3_set_rx_mode(struct net_device *dev)
 	rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
 				  RX_MODE_KEEP_VLAN_TAG);
 
+#if !defined(CONFIG_VLAN_8021Q) && !defined(CONFIG_VLAN_8021Q_MODULE)
 	/* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
 	 * flag clear.
 	 */
-#if TG3_VLAN_TAG_USED
-	if (!tp->vlgrp &&
-	    !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
-		rx_mode |= RX_MODE_KEEP_VLAN_TAG;
-#else
-	/* By definition, VLAN is disabled always in this
-	 * case.
-	 */
 	if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
 		rx_mode |= RX_MODE_KEEP_VLAN_TAG;
 #endif
@@ -11230,31 +11190,6 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	return -EOPNOTSUPP;
 }
 
-#if TG3_VLAN_TAG_USED
-static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
-{
-	struct tg3 *tp = netdev_priv(dev);
-
-	if (!netif_running(dev)) {
-		tp->vlgrp = grp;
-		return;
-	}
-
-	tg3_netif_stop(tp);
-
-	tg3_full_lock(tp, 0);
-
-	tp->vlgrp = grp;
-
-	/* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
-	__tg3_set_rx_mode(dev);
-
-	tg3_netif_start(tp);
-
-	tg3_full_unlock(tp);
-}
-#endif
-
 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
 {
 	struct tg3 *tp = netdev_priv(dev);
@@ -13066,9 +13001,7 @@ static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
 
 static void inline vlan_features_add(struct net_device *dev, unsigned long flags)
 {
-#if TG3_VLAN_TAG_USED
 	dev->vlan_features |= flags;
-#endif
 }
 
 static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
@@ -13861,11 +13794,11 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	else
 		tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
 
-	tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM;
+	tp->rx_offset = NET_IP_ALIGN;
 	tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
 	    (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
-		tp->rx_offset -= NET_IP_ALIGN;
+		tp->rx_offset = 0;
 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 		tp->rx_copy_thresh = ~(u16)0;
 #endif
@@ -14629,9 +14562,6 @@ static const struct net_device_ops tg3_netdev_ops = {
 	.ndo_do_ioctl		= tg3_ioctl,
 	.ndo_tx_timeout		= tg3_tx_timeout,
 	.ndo_change_mtu		= tg3_change_mtu,
-#if TG3_VLAN_TAG_USED
-	.ndo_vlan_rx_register	= tg3_vlan_rx_register,
-#endif
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= tg3_poll_controller,
 #endif
@@ -14648,9 +14578,6 @@ static const struct net_device_ops tg3_netdev_ops_dma_bug = {
 	.ndo_do_ioctl		= tg3_ioctl,
 	.ndo_tx_timeout		= tg3_tx_timeout,
 	.ndo_change_mtu		= tg3_change_mtu,
-#if TG3_VLAN_TAG_USED
-	.ndo_vlan_rx_register	= tg3_vlan_rx_register,
-#endif
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= tg3_poll_controller,
 #endif
@@ -14700,9 +14627,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
-#if TG3_VLAN_TAG_USED
 	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-#endif
 
 	tp = netdev_priv(dev);
 	tp->pdev = pdev;

drivers/net/tg3.h

@@ -2808,9 +2808,6 @@ struct tg3 {
 	u32				rx_std_max_post;
 	u32				rx_offset;
 	u32				rx_pkt_map_sz;
-#if TG3_VLAN_TAG_USED
-	struct vlan_group		*vlgrp;
-#endif
 
 
 	/* begin "everything else" cacheline(s) section */