net/mlx5e: Add TC offload support for the VF representors netdevice

The VF representors support only TC filter/action offloads
(not mqprio) and this is enabled for them by default.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index fdaf2fa..1c7d8b8 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -33,6 +33,7 @@
 #include <generated/utsrelease.h>
 #include <linux/mlx5/fs.h>
 #include <net/switchdev.h>
+#include <net/pkt_cls.h>
 
 #include "eswitch.h"
 #include "en.h"
@@ -222,6 +223,29 @@ static int mlx5e_rep_get_phys_port_name(struct net_device *dev,
        return 0;
 }
 
+static int mlx5e_rep_ndo_setup_tc(struct net_device *dev, u32 handle,
+                                 __be16 proto, struct tc_to_netdev *tc)
+{
+       struct mlx5e_priv *priv = netdev_priv(dev);
+
+       if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
+               return -EOPNOTSUPP;
+
+       switch (tc->type) {
+       case TC_SETUP_CLSFLOWER:
+               switch (tc->cls_flower->command) {
+               case TC_CLSFLOWER_REPLACE:
+                       return mlx5e_configure_flower(priv, proto, tc->cls_flower);
+               case TC_CLSFLOWER_DESTROY:
+                       return mlx5e_delete_flower(priv, tc->cls_flower);
+               case TC_CLSFLOWER_STATS:
+                       return mlx5e_stats_flower(priv, tc->cls_flower);
+               }
+       default:
+               return -EOPNOTSUPP;
+       }
+}
+
 static const struct switchdev_ops mlx5e_rep_switchdev_ops = {
        .switchdev_port_attr_get        = mlx5e_attr_get,
 };
@@ -231,6 +255,7 @@ static const struct net_device_ops mlx5e_netdev_ops_rep = {
        .ndo_stop                = mlx5e_close,
        .ndo_start_xmit          = mlx5e_xmit,
        .ndo_get_phys_port_name  = mlx5e_rep_get_phys_port_name,
+       .ndo_setup_tc            = mlx5e_rep_ndo_setup_tc,
        .ndo_get_stats64         = mlx5e_get_stats,
 };
 
@@ -284,7 +309,8 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev)
        netdev->switchdev_ops = &mlx5e_rep_switchdev_ops;
 #endif
 
-       netdev->features         |= NETIF_F_VLAN_CHALLENGED;
+       netdev->features         |= NETIF_F_VLAN_CHALLENGED | NETIF_F_HW_TC;
+       netdev->hw_features      |= NETIF_F_HW_TC;
 
        eth_hw_addr_random(netdev);
 }
@@ -328,8 +354,14 @@ static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
        }
        rep->vport_rx_rule = flow_rule;
 
+       err = mlx5e_tc_init(priv);
+       if (err)
+               goto err_del_flow_rule;
+
        return 0;
 
+err_del_flow_rule:
+       mlx5_del_flow_rule(rep->vport_rx_rule);
 err_destroy_direct_tirs:
        mlx5e_destroy_direct_tirs(priv);
 err_destroy_direct_rqts:
@@ -343,6 +375,7 @@ static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
        struct mlx5_eswitch_rep *rep = priv->ppriv;
        int i;
 
+       mlx5e_tc_cleanup(priv);
        mlx5_del_flow_rule(rep->vport_rx_rule);
        mlx5e_destroy_direct_tirs(priv);
        for (i = 0; i < priv->params.num_channels; i++)