nes: do vlan cleanup

- unify vlan and nonvlan rx path
- kill nesvnic->vlan_grp and nes_netdev_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool (set_features)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 45 insertions, 28 deletions

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 96fa9a4cafd..be36cbeae63 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2917,24 +2917,19 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
                                         goto skip_rx_indicate0;
 
 
-                                if ((cqe_misc & NES_NIC_CQE_TAG_VALID) &&
-                                    (nesvnic->vlan_grp != NULL)) {
+                                if (cqe_misc & NES_NIC_CQE_TAG_VALID) {
                                         vlan_tag = (u16)(le32_to_cpu(
                                                         cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX])
                                                         >> 16);
                                         nes_debug(NES_DBG_CQ, "%s: Reporting stripped VLAN packet. Tag = 0x%04X\n",
                                                         nesvnic->netdev->name, vlan_tag);
-                                        if (nes_use_lro)
-                                                lro_vlan_hwaccel_receive_skb(&nesvnic->lro_mgr, rx_skb,
-                                                                nesvnic->vlan_grp, vlan_tag, NULL);
-                                        else
-                                                nes_vlan_rx(rx_skb, nesvnic->vlan_grp, vlan_tag);
-                                } else {
-                                        if (nes_use_lro)
-                                                lro_receive_skb(&nesvnic->lro_mgr, rx_skb, NULL);
-                                        else
-                                                nes_netif_rx(rx_skb);
+
+                                        __vlan_hwaccel_put_tag(rx_skb, vlan_tag);
                                 }
+                                if (nes_use_lro)
+                                        lro_receive_skb(&nesvnic->lro_mgr, rx_skb, NULL);
+                                else
+                                        netif_receive_skb(rx_skb);
 
 skip_rx_indicate0:
                                 ;
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 91594116f94..c3241479ec0 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -1211,7 +1211,6 @@ struct nes_vnic {
         /* void *mem; */
         struct nes_device *nesdev;
         struct net_device *netdev;
-        struct vlan_group *vlan_grp;
         atomic_t          rx_skbs_needed;
         atomic_t          rx_skb_timer_running;
         int               budget;
@@ -1357,7 +1356,4 @@ struct nes_terminate_hdr {
 #define NES_LINK_RECHECK_DELAY  msecs_to_jiffies(50)
 #define NES_LINK_RECHECK_MAX    60
 
-#define nes_vlan_rx vlan_hwaccel_receive_skb
-#define nes_netif_rx netif_receive_skb
-
 #endif          /* __NES_HW_H */
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index d3a1c41cfd2..9d7ffebff21 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1584,23 +1584,19 @@ static const struct ethtool_ops nes_ethtool_ops = {
         .set_pauseparam = nes_netdev_set_pauseparam,
 };
 
-
-static void nes_netdev_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
+static void nes_vlan_mode(struct net_device *netdev, struct nes_device *nesdev, u32 features)
 {
-        struct nes_vnic *nesvnic = netdev_priv(netdev);
-        struct nes_device *nesdev = nesvnic->nesdev;
         struct nes_adapter *nesadapter = nesdev->nesadapter;
         u32 u32temp;
         unsigned long flags;
 
         spin_lock_irqsave(&nesadapter->phy_lock, flags);
-        nesvnic->vlan_grp = grp;
 
         nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name);
 
         /* Enable/Disable VLAN Stripping */
         u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG);
-        if (grp)
+        if (features & NETIF_F_HW_VLAN_RX)
                 u32temp &= 0xfdffffff;
         else
                 u32temp |= 0x02000000;
@@ -1609,17 +1605,44 @@ static void nes_netdev_vlan_rx_register(struct net_device *netdev, struct vlan_g
         spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
 }
 
+static u32 nes_fix_features(struct net_device *netdev, u32 features)
+{
+        /*
+         * Since there is no support for separate rx/tx vlan accel
+         * enable/disable make sure tx flag is always in same state as rx.
+         */
+        if (features & NETIF_F_HW_VLAN_RX)
+                features |= NETIF_F_HW_VLAN_TX;
+        else
+                features &= ~NETIF_F_HW_VLAN_TX;
+
+        return features;
+}
+
+static int nes_set_features(struct net_device *netdev, u32 features)
+{
+        struct nes_vnic *nesvnic = netdev_priv(netdev);
+        struct nes_device *nesdev = nesvnic->nesdev;
+        u32 changed = netdev->features ^ features;
+
+        if (changed & NETIF_F_HW_VLAN_RX)
+                nes_vlan_mode(netdev, nesdev, features);
+
+        return 0;
+}
+
 static const struct net_device_ops nes_netdev_ops = {
-        .ndo_open               = nes_netdev_open,
+        .ndo_open               = nes_netdev_open,
         .ndo_stop               = nes_netdev_stop,
-        .ndo_start_xmit         = nes_netdev_start_xmit,
+        .ndo_start_xmit         = nes_netdev_start_xmit,
         .ndo_get_stats          = nes_netdev_get_stats,
-        .ndo_tx_timeout         = nes_netdev_tx_timeout,
+        .ndo_tx_timeout         = nes_netdev_tx_timeout,
         .ndo_set_mac_address    = nes_netdev_set_mac_address,
         .ndo_set_multicast_list = nes_netdev_set_multicast_list,
         .ndo_change_mtu         = nes_netdev_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
-        .ndo_vlan_rx_register   = nes_netdev_vlan_rx_register,
+        .ndo_fix_features       = nes_fix_features,
+        .ndo_set_features       = nes_set_features,
 };
 
 /**
@@ -1656,7 +1679,7 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
         netdev->ethtool_ops = &nes_ethtool_ops;
         netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128);
         nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n");
-        netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+        netdev->features |= NETIF_F_HW_VLAN_TX;
 
         /* Fill in the port structure */
         nesvnic->netdev = netdev;
@@ -1683,7 +1706,8 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
         netdev->dev_addr[5] = (u8)u64temp;
         memcpy(netdev->perm_addr, netdev->dev_addr, 6);
 
-        netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM;
+        netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM |
+                              NETIF_F_HW_VLAN_RX;
         if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV))
                 netdev->hw_features |= NETIF_F_TSO;
         netdev->features |= netdev->hw_features;
@@ -1815,6 +1839,8 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
                 nes_init_phy(nesdev);
         }
 
+        nes_vlan_mode(netdev, nesdev, netdev->features);
+
         return netdev;
 }