igbvf: cleanup flags and allow for rx checksum to be disabled

This patch cleans up a number of unused or unneeded feature flags.  As a
result of these changes the user should now be able to enable or disable rx
checksumming via ethtool.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 26 insertions, 33 deletions

diff --git a/drivers/net/igbvf/ethtool.c b/drivers/net/igbvf/ethtool.c
index 1dcaa6905312..ee17a097d1ca 100644
--- a/drivers/net/igbvf/ethtool.c
+++ b/drivers/net/igbvf/ethtool.c
@@ -133,6 +133,24 @@ static int igbvf_set_pauseparam(struct net_device *netdev,
         return -EOPNOTSUPP;
 }
 
+static u32 igbvf_get_rx_csum(struct net_device *netdev)
+{
+        struct igbvf_adapter *adapter = netdev_priv(netdev);
+        return !(adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED);
+}
+
+static int igbvf_set_rx_csum(struct net_device *netdev, u32 data)
+{
+        struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+        if (data)
+                adapter->flags &= ~IGBVF_FLAG_RX_CSUM_DISABLED;
+        else
+                adapter->flags |= IGBVF_FLAG_RX_CSUM_DISABLED;
+
+        return 0;
+}
+
 static u32 igbvf_get_tx_csum(struct net_device *netdev)
 {
         return ((netdev->features & NETIF_F_IP_CSUM) != 0);
@@ -150,8 +168,6 @@ static int igbvf_set_tx_csum(struct net_device *netdev, u32 data)
 static int igbvf_set_tso(struct net_device *netdev, u32 data)
 {
         struct igbvf_adapter *adapter = netdev_priv(netdev);
-        int i;
-        struct net_device *v_netdev;
 
         if (data) {
                 netdev->features |= NETIF_F_TSO;
@@ -159,24 +175,10 @@ static int igbvf_set_tso(struct net_device *netdev, u32 data)
         } else {
                 netdev->features &= ~NETIF_F_TSO;
                 netdev->features &= ~NETIF_F_TSO6;
-                /* disable TSO on all VLANs if they're present */
-                if (!adapter->vlgrp)
-                        goto tso_out;
-                for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
-                        v_netdev = vlan_group_get_device(adapter->vlgrp, i);
-                        if (!v_netdev)
-                                continue;
-
-                        v_netdev->features &= ~NETIF_F_TSO;
-                        v_netdev->features &= ~NETIF_F_TSO6;
-                        vlan_group_set_device(adapter->vlgrp, i, v_netdev);
-                }
         }
 
-tso_out:
         dev_info(&adapter->pdev->dev, "TSO is %s\n",
                  data ? "Enabled" : "Disabled");
-        adapter->flags |= FLAG_TSO_FORCE;
         return 0;
 }
 
@@ -517,6 +519,8 @@ static const struct ethtool_ops igbvf_ethtool_ops = {
         .set_ringparam          = igbvf_set_ringparam,
         .get_pauseparam         = igbvf_get_pauseparam,
         .set_pauseparam         = igbvf_set_pauseparam,
+        .get_rx_csum            = igbvf_get_rx_csum,
+        .set_rx_csum            = igbvf_set_rx_csum,
         .get_tx_csum            = igbvf_get_tx_csum,
         .set_tx_csum            = igbvf_set_tx_csum,
         .get_sg                 = ethtool_op_get_sg,
diff --git a/drivers/net/igbvf/igbvf.h b/drivers/net/igbvf/igbvf.h
index 4bff35e46871..2ad6cd756539 100644
--- a/drivers/net/igbvf/igbvf.h
+++ b/drivers/net/igbvf/igbvf.h
@@ -286,11 +286,7 @@ struct igbvf_info {
 };
 
 /* hardware capability, feature, and workaround flags */
-#define FLAG_HAS_HW_VLAN_FILTER           (1 << 0)
-#define FLAG_HAS_JUMBO_FRAMES             (1 << 1)
-#define FLAG_MSI_ENABLED                  (1 << 2)
-#define FLAG_RX_CSUM_ENABLED              (1 << 3)
-#define FLAG_TSO_FORCE                    (1 << 4)
+#define IGBVF_FLAG_RX_CSUM_DISABLED             (1 << 0)
 
 #define IGBVF_RX_DESC_ADV(R, i)     \
         (&((((R).desc))[i].rx_desc))
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index b774666ad3cf..44a8eef03a74 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -58,8 +58,7 @@ static void igbvf_reset_interrupt_capability(struct igbvf_adapter *);
 
 static struct igbvf_info igbvf_vf_info = {
         .mac                    = e1000_vfadapt,
-        .flags                  = FLAG_HAS_JUMBO_FRAMES
-                                  | FLAG_RX_CSUM_ENABLED,
+        .flags                  = 0,
         .pba                    = 10,
         .init_ops               = e1000_init_function_pointers_vf,
 };
@@ -107,8 +106,10 @@ static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
         skb->ip_summed = CHECKSUM_NONE;
 
         /* Ignore Checksum bit is set or checksum is disabled through ethtool */
-        if ((status_err & E1000_RXD_STAT_IXSM))
+        if ((status_err & E1000_RXD_STAT_IXSM) ||
+            (adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED))
                 return;
+
         /* TCP/UDP checksum error bit is set */
         if (status_err &
             (E1000_RXDEXT_STATERR_TCPE | E1000_RXDEXT_STATERR_IPE)) {
@@ -116,6 +117,7 @@ static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
                 adapter->hw_csum_err++;
                 return;
         }
+
         /* It must be a TCP or UDP packet with a valid checksum */
         if (status_err & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))
                 skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -2351,15 +2353,6 @@ static int igbvf_change_mtu(struct net_device *netdev, int new_mtu)
                 return -EINVAL;
         }
 
-        /* Jumbo frame size limits */
-        if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
-                if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
-                        dev_err(&adapter->pdev->dev,
-                                "Jumbo Frames not supported.\n");
-                        return -EINVAL;
-                }
-        }
-
 #define MAX_STD_JUMBO_FRAME_SIZE 9234
         if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
                 dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");