net/mlx5: E-Switch, Implement trust vf ndo

- Add support to configure trusted vf attribute through trust_vf_ndo.

- Upon VF trust setting change we update vport context to refresh
 allmulti/promisc or any trusted vf attributes that we didn't trust the
 VF for before.

- Lock the eswitch state lock on vport event in order to synchronise the
 vport context updates , this will prevent contention with vport trust
 setting change which will trigger vport mac list update.

Signed-off-by: Mohamad Haj Yahia <mohamad@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_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 5d09113..1c70e51 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2446,6 +2446,13 @@ static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
        return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
 }
 
+static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
+{
+       struct mlx5e_priv *priv = netdev_priv(dev);
+       struct mlx5_core_dev *mdev = priv->mdev;
+
+       return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
+}
 static int mlx5_vport_link2ifla(u8 esw_link)
 {
        switch (esw_link) {
@@ -2616,6 +2623,7 @@ static const struct net_device_ops mlx5e_netdev_ops_sriov = {
        .ndo_set_vf_mac          = mlx5e_set_vf_mac,
        .ndo_set_vf_vlan         = mlx5e_set_vf_vlan,
        .ndo_set_vf_spoofchk     = mlx5e_set_vf_spoofchk,
+       .ndo_set_vf_trust        = mlx5e_set_vf_trust,
        .ndo_get_vf_config       = mlx5e_get_vf_config,
        .ndo_set_vf_link_state   = mlx5e_set_vf_link_state,
        .ndo_get_vf_stats        = mlx5e_get_vf_stats,

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index ad4bc98..b84a691 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -974,10 +974,8 @@ static void esw_update_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num)
                                (promisc_all || promisc_mc));
 }
 
-static void esw_vport_change_handler(struct work_struct *work)
+static void esw_vport_change_handle_locked(struct mlx5_vport *vport)
 {
-       struct mlx5_vport *vport =
-               container_of(work, struct mlx5_vport, vport_change_handler);
        struct mlx5_core_dev *dev = vport->dev;
        struct mlx5_eswitch *esw = dev->priv.eswitch;
        u8 mac[ETH_ALEN];
@@ -1015,6 +1013,17 @@ static void esw_vport_change_handler(struct work_struct *work)
                                             vport->enabled_events);
 }
 
+static void esw_vport_change_handler(struct work_struct *work)
+{
+       struct mlx5_vport *vport =
+               container_of(work, struct mlx5_vport, vport_change_handler);
+       struct mlx5_eswitch *esw = vport->dev->priv.eswitch;
+
+       mutex_lock(&esw->state_lock);
+       esw_vport_change_handle_locked(vport);
+       mutex_unlock(&esw->state_lock);
+}
+
 static void esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
                                        struct mlx5_vport *vport)
 {
@@ -1482,7 +1491,7 @@ static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
 
        /* Sync with current vport context */
        vport->enabled_events = enable_events;
-       esw_vport_change_handler(&vport->vport_change_handler);
+       esw_vport_change_handle_locked(vport);
 
        vport->enabled = true;
 
@@ -1522,7 +1531,7 @@ static void esw_disable_vport(struct mlx5_eswitch *esw, int vport_num)
         * Calling vport change handler while vport is disabled will cleanup
         * the vport resources.
         */
-       esw_vport_change_handler(&vport->vport_change_handler);
+       esw_vport_change_handle_locked(vport);
        vport->enabled_events = 0;
        if (vport_num) {
                esw_vport_disable_egress_acl(esw, vport);
@@ -1859,6 +1868,27 @@ int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
        return err;
 }
 
+int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
+                                int vport, bool setting)
+{
+       struct mlx5_vport *evport;
+
+       if (!ESW_ALLOWED(esw))
+               return -EPERM;
+       if (!LEGAL_VPORT(esw, vport))
+               return -EINVAL;
+
+       evport = &esw->vports[vport];
+
+       mutex_lock(&esw->state_lock);
+       evport->trusted = setting;
+       if (evport->enabled)
+               esw_vport_change_handle_locked(evport);
+       mutex_unlock(&esw->state_lock);
+
+       return 0;
+}
+
 int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
                                 int vport,
                                 struct ifla_vf_stats *vf_stats)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index a39f18e..fd68002 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -169,6 +169,8 @@ int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
                                int vport, u16 vlan, u8 qos);
 int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
                                    int vport, bool spoofchk);
+int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
+                                int vport_num, bool setting);
 int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
                                  int vport, struct ifla_vf_info *ivi);
 int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,