8139cp: convert to new VLAN model.

The registers and descriptors bits are identical to the pre-8168
8169 chipsets : {RxDesc / TxDesc}.opts2 can only contain VLAN information.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
---
 drivers/net/8139cp.c |   83 ++++++++++++++++---------------------------------
 1 files changed, 27 insertions(+), 56 deletions(-)

Similar patch is in my local git :)

Reviewed-by: Jiri Pirko <jpirko@redhat.com>

Fri, Jul 15, 2011 at 12:21:44PM CEST, romieu@fr.zoreil.com wrote:
>The registers and descriptors bits are identical to the pre-8168
>8169 chipsets : {RxDesc / TxDesc}.opts2 can only contain VLAN information.
>
>Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
>---
> drivers/net/8139cp.c |   83 ++++++++++++++++---------------------------------
> 1 files changed, 27 insertions(+), 56 deletions(-)
>
>diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
>index 73b10b0..cc4c210 100644
>--- a/drivers/net/8139cp.c
>+++ b/drivers/net/8139cp.c
>@@ -78,17 +78,6 @@
> #include <asm/irq.h>
> #include <asm/uaccess.h>
> 
>-/* VLAN tagging feature enable/disable */
>-#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
>-#define CP_VLAN_TAG_USED 1
>-#define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \
>-	do { (tx_desc)->opts2 = cpu_to_le32(vlan_tag_value); } while (0)
>-#else
>-#define CP_VLAN_TAG_USED 0
>-#define CP_VLAN_TX_TAG(tx_desc,vlan_tag_value) \
>-	do { (tx_desc)->opts2 = 0; } while (0)
>-#endif
>-
> /* These identify the driver base version and may not be removed. */
> static char version[] =
> DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
>@@ -356,9 +345,6 @@ struct cp_private {
> 	unsigned		rx_buf_sz;
> 	unsigned		wol_enabled : 1; /* Is Wake-on-LAN enabled? */
> 
>-#if CP_VLAN_TAG_USED
>-	struct vlan_group	*vlgrp;
>-#endif
> 	dma_addr_t		ring_dma;
> 
> 	struct mii_if_info	mii_if;
>@@ -423,24 +409,6 @@ static struct {
> };
> 
> 
>-#if CP_VLAN_TAG_USED
>-static void cp_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
>-{
>-	struct cp_private *cp = netdev_priv(dev);
>-	unsigned long flags;
>-
>-	spin_lock_irqsave(&cp->lock, flags);
>-	cp->vlgrp = grp;
>-	if (grp)
>-		cp->cpcmd |= RxVlanOn;
>-	else
>-		cp->cpcmd &= ~RxVlanOn;
>-
>-	cpw16(CpCmd, cp->cpcmd);
>-	spin_unlock_irqrestore(&cp->lock, flags);
>-}
>-#endif /* CP_VLAN_TAG_USED */
>-
> static inline void cp_set_rxbufsize (struct cp_private *cp)
> {
> 	unsigned int mtu = cp->dev->mtu;
>@@ -455,18 +423,17 @@ static inline void cp_set_rxbufsize (struct cp_private *cp)
> static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb,
> 			      struct cp_desc *desc)
> {
>+	u32 opts2 = le32_to_cpu(desc->opts2);
>+
> 	skb->protocol = eth_type_trans (skb, cp->dev);
> 
> 	cp->dev->stats.rx_packets++;
> 	cp->dev->stats.rx_bytes += skb->len;
> 
>-#if CP_VLAN_TAG_USED
>-	if (cp->vlgrp && (desc->opts2 & cpu_to_le32(RxVlanTagged))) {
>-		vlan_hwaccel_receive_skb(skb, cp->vlgrp,
>-					 swab16(le32_to_cpu(desc->opts2) & 0xffff));
>-	} else
>-#endif
>-		netif_receive_skb(skb);
>+	if (opts2 & RxVlanTagged)
>+		__vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
>+
>+	napi_gro_receive(&cp->napi, skb);
> }
> 
> static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail,
>@@ -730,6 +697,12 @@ static void cp_tx (struct cp_private *cp)
> 		netif_wake_queue(cp->dev);
> }
> 
>+static inline u32 cp_tx_vlan_tag(struct sk_buff *skb)
>+{
>+	return vlan_tx_tag_present(skb) ?
>+		TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
>+}
>+
> static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 					struct net_device *dev)
> {
>@@ -737,9 +710,7 @@ static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 	unsigned entry;
> 	u32 eor, flags;
> 	unsigned long intr_flags;
>-#if CP_VLAN_TAG_USED
>-	u32 vlan_tag = 0;
>-#endif
>+	__le32 opts2;
> 	int mss = 0;
> 
> 	spin_lock_irqsave(&cp->lock, intr_flags);
>@@ -752,15 +723,12 @@ static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 		return NETDEV_TX_BUSY;
> 	}
> 
>-#if CP_VLAN_TAG_USED
>-	if (vlan_tx_tag_present(skb))
>-		vlan_tag = TxVlanTag | swab16(vlan_tx_tag_get(skb));
>-#endif
>-
> 	entry = cp->tx_head;
> 	eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
> 	mss = skb_shinfo(skb)->gso_size;
> 
>+	opts2 = cpu_to_le32(cp_tx_vlan_tag(skb));
>+
> 	if (skb_shinfo(skb)->nr_frags == 0) {
> 		struct cp_desc *txd = &cp->tx_ring[entry];
> 		u32 len;
>@@ -768,7 +736,7 @@ static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 
> 		len = skb->len;
> 		mapping = dma_map_single(&cp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
>-		CP_VLAN_TX_TAG(txd, vlan_tag);
>+		txd->opts2 = opts2;
> 		txd->addr = cpu_to_le64(mapping);
> 		wmb();
> 
>@@ -839,7 +807,7 @@ static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 				ctrl |= LastFrag;
> 
> 			txd = &cp->tx_ring[entry];
>-			CP_VLAN_TX_TAG(txd, vlan_tag);
>+			txd->opts2 = opts2;
> 			txd->addr = cpu_to_le64(mapping);
> 			wmb();
> 
>@@ -851,7 +819,7 @@ static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
> 		}
> 
> 		txd = &cp->tx_ring[first_entry];
>-		CP_VLAN_TX_TAG(txd, vlan_tag);
>+		txd->opts2 = opts2;
> 		txd->addr = cpu_to_le64(first_mapping);
> 		wmb();
> 
>@@ -1431,6 +1399,11 @@ static int cp_set_features(struct net_device *dev, u32 features)
> 	else
> 		cp->cpcmd &= ~RxChkSum;
> 
>+	if (features & NETIF_F_HW_VLAN_RX)
>+		cp->cpcmd |= RxVlanOn;
>+	else
>+		cp->cpcmd &= ~RxVlanOn;
>+
> 	cpw16_f(CpCmd, cp->cpcmd);
> 	spin_unlock_irqrestore(&cp->lock, flags);
> 
>@@ -1818,9 +1791,6 @@ static const struct net_device_ops cp_netdev_ops = {
> 	.ndo_start_xmit		= cp_start_xmit,
> 	.ndo_tx_timeout		= cp_tx_timeout,
> 	.ndo_set_features	= cp_set_features,
>-#if CP_VLAN_TAG_USED
>-	.ndo_vlan_rx_register	= cp_vlan_rx_register,
>-#endif
> #ifdef BROKEN
> 	.ndo_change_mtu		= cp_change_mtu,
> #endif
>@@ -1949,15 +1919,16 @@ static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
> 	dev->ethtool_ops = &cp_ethtool_ops;
> 	dev->watchdog_timeo = TX_TIMEOUT;
> 
>-#if CP_VLAN_TAG_USED
> 	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
>-#endif
> 
> 	if (pci_using_dac)
> 		dev->features |= NETIF_F_HIGHDMA;
> 
> 	/* disabled by default until verified */
>-	dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
>+	dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
>+		NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
>+	dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
>+		NETIF_F_HIGHDMA;
> 
> 	dev->irq = pdev->irq;
> 
>-- 
>1.7.4.4
>
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From: Jiri Pirko <jpirko@redhat.com>
Date: Fri, 15 Jul 2011 13:36:31 +0200

> Similar patch is in my local git :)
> 
> Reviewed-by: Jiri Pirko <jpirko@redhat.com>

Applied to net-next-2.6, thanks.
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