net: vmxnet3: convert to hw_features

This also removes private feature flags that were always set to true.

You may want to move vmxnet3_set_features() to vmxnet3_drv.c as a following
cleanup.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vmxnet3/vmxnet3_drv.c

@@ -1082,7 +1082,7 @@ vmxnet3_rx_csum(struct vmxnet3_adapter *adapter,
 		struct sk_buff *skb,
 		union Vmxnet3_GenericDesc *gdesc)
 {
-	if (!gdesc->rcd.cnc && adapter->rxcsum) {
+	if (!gdesc->rcd.cnc && adapter->netdev->features & NETIF_F_RXCSUM) {
 		/* typical case: TCP/UDP over IP and both csums are correct */
 		if ((le32_to_cpu(gdesc->dword[3]) & VMXNET3_RCD_CSUM_OK) ==
 							VMXNET3_RCD_CSUM_OK) {
@@ -2081,10 +2081,10 @@ vmxnet3_setup_driver_shared(struct vmxnet3_adapter *adapter)
 	devRead->misc.ddLen = cpu_to_le32(sizeof(struct vmxnet3_adapter));
 
 	/* set up feature flags */
-	if (adapter->rxcsum)
+	if (adapter->netdev->features & NETIF_F_RXCSUM)
 		devRead->misc.uptFeatures |= UPT1_F_RXCSUM;
 
-	if (adapter->lro) {
+	if (adapter->netdev->features & NETIF_F_LRO) {
 		devRead->misc.uptFeatures |= UPT1_F_LRO;
 		devRead->misc.maxNumRxSG = cpu_to_le16(1 + MAX_SKB_FRAGS);
 	}
@@ -2593,9 +2593,6 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu)
 	if (new_mtu < VMXNET3_MIN_MTU || new_mtu > VMXNET3_MAX_MTU)
 		return -EINVAL;
 
-	if (new_mtu > 1500 && !adapter->jumbo_frame)
-		return -EINVAL;
-
 	netdev->mtu = new_mtu;
 
 	/*
@@ -2641,28 +2638,18 @@ vmxnet3_declare_features(struct vmxnet3_adapter *adapter, bool dma64)
 {
 	struct net_device *netdev = adapter->netdev;
 
-	netdev->features = NETIF_F_SG |
-		NETIF_F_HW_CSUM |
-		NETIF_F_HW_VLAN_TX |
-		NETIF_F_HW_VLAN_RX |
-		NETIF_F_HW_VLAN_FILTER |
-		NETIF_F_TSO |
-		NETIF_F_TSO6 |
-		NETIF_F_LRO;
-
-	printk(KERN_INFO "features: sg csum vlan jf tso tsoIPv6 lro");
-
-	adapter->rxcsum = true;
-	adapter->jumbo_frame = true;
-	adapter->lro = true;
-
-	if (dma64) {
+	netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
+		NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_TX |
+		NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_LRO;
+	if (dma64)
 		netdev->features |= NETIF_F_HIGHDMA;
-		printk(" highDMA");
-	}
+	netdev->vlan_features = netdev->hw_features & ~NETIF_F_HW_VLAN_TX;
+	netdev->features = netdev->hw_features |
+		NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
 
-	netdev->vlan_features = netdev->features;
-	printk("\n");
+	netdev_info(adapter->netdev,
+		"features: sg csum vlan jf tso tsoIPv6 lro%s\n",
+		dma64 ? " highDMA" : "");
 }
 
 
@@ -2874,6 +2861,7 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 		.ndo_start_xmit = vmxnet3_xmit_frame,
 		.ndo_set_mac_address = vmxnet3_set_mac_addr,
 		.ndo_change_mtu = vmxnet3_change_mtu,
+		.ndo_set_features = vmxnet3_set_features,
 		.ndo_get_stats = vmxnet3_get_stats,
 		.ndo_tx_timeout = vmxnet3_tx_timeout,
 		.ndo_set_multicast_list = vmxnet3_set_mc,

drivers/net/vmxnet3/vmxnet3_ethtool.c

@@ -33,40 +33,6 @@ struct vmxnet3_stat_desc {
 };
 
 
-static u32
-vmxnet3_get_rx_csum(struct net_device *netdev)
-{
-	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
-	return adapter->rxcsum;
-}
-
-
-static int
-vmxnet3_set_rx_csum(struct net_device *netdev, u32 val)
-{
-	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
-	unsigned long flags;
-
-	if (adapter->rxcsum != val) {
-		adapter->rxcsum = val;
-		if (netif_running(netdev)) {
-			if (val)
-				adapter->shared->devRead.misc.uptFeatures |=
-				UPT1_F_RXCSUM;
-			else
-				adapter->shared->devRead.misc.uptFeatures &=
-				~UPT1_F_RXCSUM;
-
-			spin_lock_irqsave(&adapter->cmd_lock, flags);
-			VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
-					       VMXNET3_CMD_UPDATE_FEATURE);
-			spin_unlock_irqrestore(&adapter->cmd_lock, flags);
-		}
-	}
-	return 0;
-}
-
-
 /* per tq stats maintained by the device */
 static const struct vmxnet3_stat_desc
 vmxnet3_tq_dev_stats[] = {
@@ -296,28 +262,27 @@ vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 	}
 }
 
-static int
-vmxnet3_set_flags(struct net_device *netdev, u32 data)
+int vmxnet3_set_features(struct net_device *netdev, u32 features)
 {
 	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
-	u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
-	u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
 	unsigned long flags;
+	u32 changed = features ^ netdev->features;
 
-	if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
-		return -EINVAL;
-
-	if (lro_requested ^ lro_present) {
-		/* toggle the LRO feature*/
-		netdev->features ^= NETIF_F_LRO;
+	if (changed & (NETIF_F_RXCSUM|NETIF_F_LRO)) {
+		if (features & NETIF_F_RXCSUM)
+			adapter->shared->devRead.misc.uptFeatures |=
+			UPT1_F_RXCSUM;
+		else
+			adapter->shared->devRead.misc.uptFeatures &=
+			~UPT1_F_RXCSUM;
 
-		/* update harware LRO capability accordingly */
-		if (lro_requested)
+		if (features & NETIF_F_LRO)
 			adapter->shared->devRead.misc.uptFeatures |=
 							UPT1_F_LRO;
 		else
 			adapter->shared->devRead.misc.uptFeatures &=
 							~UPT1_F_LRO;
+
 		spin_lock_irqsave(&adapter->cmd_lock, flags);
 		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 				       VMXNET3_CMD_UPDATE_FEATURE);
@@ -654,17 +619,7 @@ static struct ethtool_ops vmxnet3_ethtool_ops = {
 	.get_wol           = vmxnet3_get_wol,
 	.set_wol           = vmxnet3_set_wol,
 	.get_link          = ethtool_op_get_link,
-	.get_rx_csum       = vmxnet3_get_rx_csum,
-	.set_rx_csum       = vmxnet3_set_rx_csum,
-	.get_tx_csum       = ethtool_op_get_tx_csum,
-	.set_tx_csum       = ethtool_op_set_tx_hw_csum,
-	.get_sg            = ethtool_op_get_sg,
-	.set_sg            = ethtool_op_set_sg,
-	.get_tso           = ethtool_op_get_tso,
-	.set_tso           = ethtool_op_set_tso,
 	.get_strings       = vmxnet3_get_strings,
-	.get_flags	   = ethtool_op_get_flags,
-	.set_flags	   = vmxnet3_set_flags,
 	.get_sset_count	   = vmxnet3_get_sset_count,
 	.get_ethtool_stats = vmxnet3_get_ethtool_stats,
 	.get_ringparam     = vmxnet3_get_ringparam,

drivers/net/vmxnet3/vmxnet3_int.h

@@ -329,10 +329,6 @@ struct vmxnet3_adapter {
 	u8			__iomem *hw_addr0; /* for BAR 0 */
 	u8			__iomem *hw_addr1; /* for BAR 1 */
 
-	/* feature control */
-	bool				rxcsum;
-	bool				lro;
-	bool				jumbo_frame;
 #ifdef VMXNET3_RSS
 	struct UPT1_RSSConf		*rss_conf;
 	bool				rss;
@@ -403,6 +399,9 @@ vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter);
 void
 vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter);
 
+int
+vmxnet3_set_features(struct net_device *netdev, u32 features);
+
 int
 vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
 		      u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size);