net: qlcnic: convert to hw_features

Bit more than minimal conversion. There might be some issues because
of qlcnic_set_netdev_features() if it's called after netdev init.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 57 insertions, 142 deletions

diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h
index e5d30538f37..fa5b15c474b 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -926,7 +926,6 @@ struct qlcnic_adapter {
 	u8 max_rds_rings;
 	u8 max_sds_rings;
 	u8 msix_supported;
-	u8 rx_csum;
 	u8 portnum;
 	u8 physical_port;
 	u8 reset_context;
@@ -1247,6 +1246,8 @@ void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup);
 
 int qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu);
 int qlcnic_change_mtu(struct net_device *netdev, int new_mtu);
+u32 qlcnic_fix_features(struct net_device *netdev, u32 features);
+int qlcnic_set_features(struct net_device *netdev, u32 features);
 int qlcnic_config_hw_lro(struct qlcnic_adapter *adapter, int enable);
 int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable);
 int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter);
diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c
index 3cd8a169694..615a5ab8845 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -764,73 +764,6 @@ qlcnic_get_ethtool_stats(struct net_device *dev,
 	qlcnic_fill_device_stats(&index, data, &port_stats.tx);
 }
 
-static int qlcnic_set_tx_csum(struct net_device *dev, u32 data)
-{
-	struct qlcnic_adapter *adapter = netdev_priv(dev);
-
-	if ((adapter->flags & QLCNIC_ESWITCH_ENABLED))
-		return -EOPNOTSUPP;
-	if (data)
-		dev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
-	else
-		dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
-
-	return 0;
-
-}
-static u32 qlcnic_get_tx_csum(struct net_device *dev)
-{
-	return dev->features & NETIF_F_IP_CSUM;
-}
-
-static u32 qlcnic_get_rx_csum(struct net_device *dev)
-{
-	struct qlcnic_adapter *adapter = netdev_priv(dev);
-	return adapter->rx_csum;
-}
-
-static int qlcnic_set_rx_csum(struct net_device *dev, u32 data)
-{
-	struct qlcnic_adapter *adapter = netdev_priv(dev);
-
-	if ((adapter->flags & QLCNIC_ESWITCH_ENABLED))
-		return -EOPNOTSUPP;
-	if (!!data) {
-		adapter->rx_csum = !!data;
-		return 0;
-	}
-
-	if (dev->features & NETIF_F_LRO) {
-		if (qlcnic_config_hw_lro(adapter, QLCNIC_LRO_DISABLED))
-			return -EIO;
-
-		dev->features &= ~NETIF_F_LRO;
-		qlcnic_send_lro_cleanup(adapter);
-		dev_info(&adapter->pdev->dev,
-					"disabling LRO as rx_csum is off\n");
-	}
-	adapter->rx_csum = !!data;
-	return 0;
-}
-
-static u32 qlcnic_get_tso(struct net_device *dev)
-{
-	return (dev->features & (NETIF_F_TSO | NETIF_F_TSO6)) != 0;
-}
-
-static int qlcnic_set_tso(struct net_device *dev, u32 data)
-{
-	struct qlcnic_adapter *adapter = netdev_priv(dev);
-	if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO))
-		return -EOPNOTSUPP;
-	if (data)
-		dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
-	else
-		dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
-
-	return 0;
-}
-
 static int qlcnic_set_led(struct net_device *dev,
 			  enum ethtool_phys_id_state state)
 {
@@ -993,50 +926,6 @@ static int qlcnic_get_intr_coalesce(struct net_device *netdev,
 	return 0;
 }
 
-static int qlcnic_set_flags(struct net_device *netdev, u32 data)
-{
-	struct qlcnic_adapter *adapter = netdev_priv(netdev);
-	int hw_lro;
-
-	if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
-		return -EINVAL;
-
-	if (data & ETH_FLAG_LRO) {
-
-		if (netdev->features & NETIF_F_LRO)
-			return 0;
-
-		if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO))
-			return -EINVAL;
-
-		if (!adapter->rx_csum) {
-			dev_info(&adapter->pdev->dev, "rx csum is off, "
-				"cannot toggle lro\n");
-			return -EINVAL;
-		}
-
-		hw_lro = QLCNIC_LRO_ENABLED;
-		netdev->features |= NETIF_F_LRO;
-
-	} else {
-
-		if (!(netdev->features & NETIF_F_LRO))
-			return 0;
-
-		hw_lro = 0;
-		netdev->features &= ~NETIF_F_LRO;
-	}
-
-	if (qlcnic_config_hw_lro(adapter, hw_lro))
-		return -EIO;
-
-	if ((hw_lro == 0) && qlcnic_send_lro_cleanup(adapter))
-		return -EIO;
-
-
-	return 0;
-}
-
 static u32 qlcnic_get_msglevel(struct net_device *netdev)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
@@ -1064,23 +953,14 @@ const struct ethtool_ops qlcnic_ethtool_ops = {
 	.set_ringparam = qlcnic_set_ringparam,
 	.get_pauseparam = qlcnic_get_pauseparam,
 	.set_pauseparam = qlcnic_set_pauseparam,
-	.get_tx_csum = qlcnic_get_tx_csum,
-	.set_tx_csum = qlcnic_set_tx_csum,
-	.set_sg = ethtool_op_set_sg,
-	.get_tso = qlcnic_get_tso,
-	.set_tso = qlcnic_set_tso,
 	.get_wol = qlcnic_get_wol,
 	.set_wol = qlcnic_set_wol,
 	.self_test = qlcnic_diag_test,
 	.get_strings = qlcnic_get_strings,
 	.get_ethtool_stats = qlcnic_get_ethtool_stats,
 	.get_sset_count = qlcnic_get_sset_count,
-	.get_rx_csum = qlcnic_get_rx_csum,
-	.set_rx_csum = qlcnic_set_rx_csum,
 	.get_coalesce = qlcnic_get_intr_coalesce,
 	.set_coalesce = qlcnic_set_intr_coalesce,
-	.get_flags = ethtool_op_get_flags,
-	.set_flags = qlcnic_set_flags,
 	.set_phys_id = qlcnic_set_led,
 	.set_msglevel = qlcnic_set_msglevel,
 	.get_msglevel = qlcnic_get_msglevel,
diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c
index 498cca92126..cbb27f2df00 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -758,6 +758,43 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu)
 	return rc;
 }
 
+
+u32 qlcnic_fix_features(struct net_device *netdev, u32 features)
+{
+	struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+	if ((adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
+		u32 changed = features ^ netdev->features;
+		features ^= changed & (NETIF_F_ALL_CSUM | NETIF_F_RXCSUM);
+	}
+
+	if (!(features & NETIF_F_RXCSUM))
+		features &= ~NETIF_F_LRO;
+
+	return features;
+}
+
+
+int qlcnic_set_features(struct net_device *netdev, u32 features)
+{
+	struct qlcnic_adapter *adapter = netdev_priv(netdev);
+	u32 changed = netdev->features ^ features;
+	int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
+
+	if (!(changed & NETIF_F_LRO))
+		return 0;
+
+	netdev->features = features ^ NETIF_F_LRO;
+
+	if (qlcnic_config_hw_lro(adapter, hw_lro))
+		return -EIO;
+
+	if ((hw_lro == 0) && qlcnic_send_lro_cleanup(adapter))
+		return -EIO;
+
+	return 0;
+}
+
 /*
  * Changes the CRB window to the specified window.
  */
diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c
index 4ec0eeb6bff..d0f338b0139 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -1390,8 +1390,8 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
 
 	skb = buffer->skb;
 
-	if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
-						cksum == STATUS_CKSUM_LOOP))) {
+	if (likely((adapter->netdev->features & NETIF_F_RXCSUM) &&
+	    (cksum == STATUS_CKSUM_OK || cksum == STATUS_CKSUM_LOOP))) {
 		adapter->stats.csummed++;
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	} else {
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index e9e9ba6efc5..6e619514fee 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -328,6 +328,8 @@ static const struct net_device_ops qlcnic_netdev_ops = {
 	.ndo_set_multicast_list = qlcnic_set_multi,
 	.ndo_set_mac_address    = qlcnic_set_mac,
 	.ndo_change_mtu	   = qlcnic_change_mtu,
+	.ndo_fix_features  = qlcnic_fix_features,
+	.ndo_set_features  = qlcnic_set_features,
 	.ndo_tx_timeout	   = qlcnic_tx_timeout,
 	.ndo_vlan_rx_add_vid	= qlcnic_vlan_rx_add,
 	.ndo_vlan_rx_kill_vid	= qlcnic_vlan_rx_del,
@@ -764,7 +766,7 @@ qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 	struct net_device *netdev = adapter->netdev;
 	unsigned long features, vlan_features;
 
-	features = (NETIF_F_SG | NETIF_F_IP_CSUM |
+	features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 			NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 	vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 			NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
@@ -779,14 +781,12 @@ qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 
 	if (esw_cfg->offload_flags & BIT_0) {
 		netdev->features |= features;
-		adapter->rx_csum = 1;
 		if (!(esw_cfg->offload_flags & BIT_1))
 			netdev->features &= ~NETIF_F_TSO;
 		if (!(esw_cfg->offload_flags & BIT_2))
 			netdev->features &= ~NETIF_F_TSO6;
 	} else {
 		netdev->features &= ~features;
-		adapter->rx_csum = 0;
 	}
 
 	netdev->vlan_features = (features & vlan_features);
@@ -1436,7 +1436,6 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
 	int err;
 	struct pci_dev *pdev = adapter->pdev;
 
-	adapter->rx_csum = 1;
 	adapter->mc_enabled = 0;
 	adapter->max_mc_count = 38;
 
@@ -1447,26 +1446,24 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
 
 	SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
 
-	netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
-		NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
-	netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
-		NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
+	netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
+		NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
 
-	if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
-		netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
-		netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
-	}
+	if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
+		netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
+	if (pci_using_dac)
+		netdev->hw_features |= NETIF_F_HIGHDMA;
 
-	if (pci_using_dac) {
-		netdev->features |= NETIF_F_HIGHDMA;
-		netdev->vlan_features |= NETIF_F_HIGHDMA;
-	}
+	netdev->vlan_features = netdev->hw_features;
 
 	if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
-		netdev->features |= (NETIF_F_HW_VLAN_TX);
-
+		netdev->hw_features |= NETIF_F_HW_VLAN_TX;
 	if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
-		netdev->features |= NETIF_F_LRO;
+		netdev->hw_features |= NETIF_F_LRO;
+
+	netdev->features |= netdev->hw_features |
+		NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
+
 	netdev->irq = adapter->msix_entries[0].vector;
 
 	netif_carrier_off(netdev);