net: tg3: convert to hw_features

Cleanup hint: Some features are calculated in tg3_get_invariants() and
the rest in its caller --- tg3_init_one(). This is not changed here.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -4816,7 +4816,7 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 			skb = copy_skb;
 		}
 
-		if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
+		if ((tp->dev->features & NETIF_F_RXCSUM) &&
 		    (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
 		    (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
 		      >> RXD_TCPCSUM_SHIFT) == 0xffff))
@@ -6127,6 +6127,16 @@ dma_error:
 	return NETDEV_TX_OK;
 }
 
+static u32 tg3_fix_features(struct net_device *dev, u32 features)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	if (dev->mtu > ETH_DATA_LEN && (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
+		features &= ~NETIF_F_ALL_TSO;
+
+	return features;
+}
+
 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
 			       int new_mtu)
 {
@@ -6134,14 +6144,16 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
 
 	if (new_mtu > ETH_DATA_LEN) {
 		if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
+			netdev_update_features(dev);
 			tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
-			ethtool_op_set_tso(dev, 0);
 		} else {
 			tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
 		}
 	} else {
-		if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
+		if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
 			tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
+			netdev_update_features(dev);
+		}
 		tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
 	}
 }
@@ -10021,33 +10033,6 @@ static void tg3_set_msglevel(struct net_device *dev, u32 value)
 	tp->msg_enable = value;
 }
 
-static int tg3_set_tso(struct net_device *dev, u32 value)
-{
-	struct tg3 *tp = netdev_priv(dev);
-
-	if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
-		if (value)
-			return -EINVAL;
-		return 0;
-	}
-	if ((dev->features & NETIF_F_IPV6_CSUM) &&
-	    ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
-	     (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
-		if (value) {
-			dev->features |= NETIF_F_TSO6;
-			if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
-			    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
-			    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
-			     GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
-			    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
-			    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
-				dev->features |= NETIF_F_TSO_ECN;
-		} else
-			dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
-	}
-	return ethtool_op_set_tso(dev, value);
-}
-
 static int tg3_nway_reset(struct net_device *dev)
 {
 	struct tg3 *tp = netdev_priv(dev);
@@ -10270,50 +10255,6 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
 	return err;
 }
 
-static u32 tg3_get_rx_csum(struct net_device *dev)
-{
-	struct tg3 *tp = netdev_priv(dev);
-	return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
-}
-
-static int tg3_set_rx_csum(struct net_device *dev, u32 data)
-{
-	struct tg3 *tp = netdev_priv(dev);
-
-	if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
-		if (data != 0)
-			return -EINVAL;
-		return 0;
-	}
-
-	spin_lock_bh(&tp->lock);
-	if (data)
-		tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
-	else
-		tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
-	spin_unlock_bh(&tp->lock);
-
-	return 0;
-}
-
-static int tg3_set_tx_csum(struct net_device *dev, u32 data)
-{
-	struct tg3 *tp = netdev_priv(dev);
-
-	if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
-		if (data != 0)
-			return -EINVAL;
-		return 0;
-	}
-
-	if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
-		ethtool_op_set_tx_ipv6_csum(dev, data);
-	else
-		ethtool_op_set_tx_csum(dev, data);
-
-	return 0;
-}
-
 static int tg3_get_sset_count(struct net_device *dev, int sset)
 {
 	switch (sset) {
@@ -11390,11 +11331,6 @@ static const struct ethtool_ops tg3_ethtool_ops = {
 	.set_ringparam		= tg3_set_ringparam,
 	.get_pauseparam		= tg3_get_pauseparam,
 	.set_pauseparam		= tg3_set_pauseparam,
-	.get_rx_csum		= tg3_get_rx_csum,
-	.set_rx_csum		= tg3_set_rx_csum,
-	.set_tx_csum		= tg3_set_tx_csum,
-	.set_sg			= ethtool_op_set_sg,
-	.set_tso		= tg3_set_tso,
 	.self_test		= tg3_self_test,
 	.get_strings		= tg3_get_strings,
 	.set_phys_id		= tg3_set_phys_id,
@@ -13262,11 +13198,6 @@ done:
 
 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
 
-static inline void vlan_features_add(struct net_device *dev, unsigned long flags)
-{
-	dev->vlan_features |= flags;
-}
-
 static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
 {
 	if (tp->tg3_flags3 & TG3_FLG3_LRG_PROD_RING_CAP)
@@ -13513,16 +13444,14 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	/* 5700 B0 chips do not support checksumming correctly due
 	 * to hardware bugs.
 	 */
-	if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
-		tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
-	else {
-		unsigned long features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO;
+	if (tp->pci_chip_rev_id != CHIPREV_ID_5700_B0) {
+		u32 features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
 
-		tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
 		if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
 			features |= NETIF_F_IPV6_CSUM;
 		tp->dev->features |= features;
-		vlan_features_add(tp->dev, features);
+		tp->dev->hw_features |= features;
+		tp->dev->vlan_features |= features;
 	}
 
 	/* Determine TSO capabilities */
@@ -14794,6 +14723,7 @@ 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,
+	.ndo_fix_features	= tg3_fix_features,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= tg3_poll_controller,
 #endif
@@ -14824,6 +14754,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	u32 sndmbx, rcvmbx, intmbx;
 	char str[40];
 	u64 dma_mask, persist_dma_mask;
+	u32 hw_features = 0;
 
 	printk_once(KERN_INFO "%s\n", version);
 
@@ -14984,27 +14915,25 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	 * is off by default, but can be enabled using ethtool.
 	 */
 	if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
-	    (dev->features & NETIF_F_IP_CSUM)) {
-		dev->features |= NETIF_F_TSO;
-		vlan_features_add(dev, NETIF_F_TSO);
-	}
+	    (dev->features & NETIF_F_IP_CSUM))
+		hw_features |= NETIF_F_TSO;
 	if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
 	    (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
-		if (dev->features & NETIF_F_IPV6_CSUM) {
-			dev->features |= NETIF_F_TSO6;
-			vlan_features_add(dev, NETIF_F_TSO6);
-		}
+		if (dev->features & NETIF_F_IPV6_CSUM)
+			hw_features |= NETIF_F_TSO6;
 		if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
 		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
 		    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
 		     GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
 			GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
-		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
-			dev->features |= NETIF_F_TSO_ECN;
-			vlan_features_add(dev, NETIF_F_TSO_ECN);
-		}
+		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
+			hw_features |= NETIF_F_TSO_ECN;
 	}
 
+	dev->hw_features |= hw_features;
+	dev->features |= hw_features;
+	dev->vlan_features |= hw_features;
+
 	if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
 	    !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
 	    !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
@@ -15133,7 +15062,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	}
 
 	netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
-		    (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
+		    (dev->features & NETIF_F_RXCSUM) != 0,
 		    (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
 		    (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) != 0,
 		    (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,

drivers/net/tg3.h

@@ -2883,7 +2883,6 @@ struct tg3 {
 	u32				tg3_flags;
 #define TG3_FLAG_TAGGED_STATUS		0x00000001
 #define TG3_FLAG_TXD_MBOX_HWBUG		0x00000002
-#define TG3_FLAG_RX_CHECKSUMS		0x00000004
 #define TG3_FLAG_USE_LINKCHG_REG	0x00000008
 #define TG3_FLAG_ENABLE_ASF		0x00000020
 #define TG3_FLAG_ASPM_WORKAROUND	0x00000040
@@ -2909,7 +2908,6 @@ struct tg3 {
 #define TG3_FLAG_PAUSE_AUTONEG		0x02000000
 #define TG3_FLAG_CPMU_PRESENT		0x04000000
 #define TG3_FLAG_40BIT_DMA_BUG		0x08000000
-#define TG3_FLAG_BROKEN_CHECKSUMS	0x10000000
 #define TG3_FLAG_JUMBO_CAPABLE		0x20000000
 #define TG3_FLAG_CHIP_RESETTING		0x40000000
 #define TG3_FLAG_INIT_COMPLETE		0x80000000