diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index f2fa1307e90cbb..0cc2080fd847b6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -45,6 +45,7 @@ #include #include #include +#include #include #include #include @@ -792,6 +793,7 @@ struct mlx5e_priv { u16 drop_rq_q_counter; struct notifier_block events_nb; + struct udp_tunnel_nic_info nic_info; #ifdef CONFIG_MLX5_CORE_EN_DCB struct mlx5e_dcbx dcbx; #endif @@ -1012,6 +1014,7 @@ int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv); int mlx5e_set_dev_port_mtu_ctx(struct mlx5e_priv *priv, void *context); int mlx5e_change_mtu(struct net_device *netdev, int new_mtu, mlx5e_fp_preactivate preactivate); +void mlx5e_vxlan_set_netdev_info(struct mlx5e_priv *priv); /* ethtool helpers */ void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv, @@ -1080,8 +1083,6 @@ void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params, void mlx5e_rx_dim_work(struct work_struct *work); void mlx5e_tx_dim_work(struct work_struct *work); -void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti); -void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti); netdev_features_t mlx5e_features_check(struct sk_buff *skb, struct net_device *netdev, netdev_features_t features); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 72c91ff5546532..8f26cd951ff540 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4191,83 +4191,6 @@ int mlx5e_get_vf_stats(struct net_device *dev, } #endif -struct mlx5e_vxlan_work { - struct work_struct work; - struct mlx5e_priv *priv; - u16 port; -}; - -static void mlx5e_vxlan_add_work(struct work_struct *work) -{ - struct mlx5e_vxlan_work *vxlan_work = - container_of(work, struct mlx5e_vxlan_work, work); - struct mlx5e_priv *priv = vxlan_work->priv; - u16 port = vxlan_work->port; - - mutex_lock(&priv->state_lock); - mlx5_vxlan_add_port(priv->mdev->vxlan, port); - mutex_unlock(&priv->state_lock); - - kfree(vxlan_work); -} - -static void mlx5e_vxlan_del_work(struct work_struct *work) -{ - struct mlx5e_vxlan_work *vxlan_work = - container_of(work, struct mlx5e_vxlan_work, work); - struct mlx5e_priv *priv = vxlan_work->priv; - u16 port = vxlan_work->port; - - mutex_lock(&priv->state_lock); - mlx5_vxlan_del_port(priv->mdev->vxlan, port); - mutex_unlock(&priv->state_lock); - kfree(vxlan_work); -} - -static void mlx5e_vxlan_queue_work(struct mlx5e_priv *priv, u16 port, int add) -{ - struct mlx5e_vxlan_work *vxlan_work; - - vxlan_work = kmalloc(sizeof(*vxlan_work), GFP_ATOMIC); - if (!vxlan_work) - return; - - if (add) - INIT_WORK(&vxlan_work->work, mlx5e_vxlan_add_work); - else - INIT_WORK(&vxlan_work->work, mlx5e_vxlan_del_work); - - vxlan_work->priv = priv; - vxlan_work->port = port; - queue_work(priv->wq, &vxlan_work->work); -} - -void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti) -{ - struct mlx5e_priv *priv = netdev_priv(netdev); - - if (ti->type != UDP_TUNNEL_TYPE_VXLAN) - return; - - if (!mlx5_vxlan_allowed(priv->mdev->vxlan)) - return; - - mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 1); -} - -void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti) -{ - struct mlx5e_priv *priv = netdev_priv(netdev); - - if (ti->type != UDP_TUNNEL_TYPE_VXLAN) - return; - - if (!mlx5_vxlan_allowed(priv->mdev->vxlan)) - return; - - mlx5e_vxlan_queue_work(priv, be16_to_cpu(ti->port), 0); -} - static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv, struct sk_buff *skb, netdev_features_t features) @@ -4597,8 +4520,8 @@ const struct net_device_ops mlx5e_netdev_ops = { .ndo_change_mtu = mlx5e_change_nic_mtu, .ndo_do_ioctl = mlx5e_ioctl, .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate, - .ndo_udp_tunnel_add = mlx5e_add_vxlan_port, - .ndo_udp_tunnel_del = mlx5e_del_vxlan_port, + .ndo_udp_tunnel_add = udp_tunnel_nic_add_port, + .ndo_udp_tunnel_del = udp_tunnel_nic_del_port, .ndo_features_check = mlx5e_features_check, .ndo_tx_timeout = mlx5e_tx_timeout, .ndo_bpf = mlx5e_xdp, @@ -4869,6 +4792,39 @@ static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) } } +static int mlx5e_vxlan_set_port(struct net_device *netdev, unsigned int table, + unsigned int entry, struct udp_tunnel_info *ti) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + + return mlx5_vxlan_add_port(priv->mdev->vxlan, ntohs(ti->port)); +} + +static int mlx5e_vxlan_unset_port(struct net_device *netdev, unsigned int table, + unsigned int entry, struct udp_tunnel_info *ti) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + + return mlx5_vxlan_del_port(priv->mdev->vxlan, ntohs(ti->port)); +} + +void mlx5e_vxlan_set_netdev_info(struct mlx5e_priv *priv) +{ + if (!mlx5_vxlan_allowed(priv->mdev->vxlan)) + return; + + priv->nic_info.set_port = mlx5e_vxlan_set_port; + priv->nic_info.unset_port = mlx5e_vxlan_unset_port; + priv->nic_info.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | + UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN; + priv->nic_info.tables[0].tunnel_types = UDP_TUNNEL_TYPE_VXLAN; + /* Don't count the space hard-coded to the IANA port */ + priv->nic_info.tables[0].n_entries = + mlx5_vxlan_max_udp_ports(priv->mdev) - 1; + + priv->netdev->udp_tunnel_nic_info = &priv->nic_info; +} + static void mlx5e_build_nic_netdev(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); @@ -4912,6 +4868,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; + mlx5e_vxlan_set_netdev_info(priv); + if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev) || mlx5e_any_tunnel_proto_supported(mdev)) { netdev->hw_enc_features |= NETIF_F_HW_CSUM; @@ -5217,8 +5175,7 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv) rtnl_lock(); if (netif_running(netdev)) mlx5e_open(netdev); - if (mlx5_vxlan_allowed(priv->mdev->vxlan)) - udp_tunnel_get_rx_info(netdev); + udp_tunnel_nic_reset_ntf(priv->netdev); netif_device_attach(netdev); rtnl_unlock(); } @@ -5233,8 +5190,6 @@ static void mlx5e_nic_disable(struct mlx5e_priv *priv) rtnl_lock(); if (netif_running(priv->netdev)) mlx5e_close(priv->netdev); - if (mlx5_vxlan_allowed(priv->mdev->vxlan)) - udp_tunnel_drop_rx_info(priv->netdev); netif_device_detach(priv->netdev); rtnl_unlock(); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index 3db81a8cfc1d0a..e13e5d1b3eaed7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -658,8 +658,8 @@ static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = { .ndo_has_offload_stats = mlx5e_rep_has_offload_stats, .ndo_get_offload_stats = mlx5e_rep_get_offload_stats, .ndo_change_mtu = mlx5e_uplink_rep_change_mtu, - .ndo_udp_tunnel_add = mlx5e_add_vxlan_port, - .ndo_udp_tunnel_del = mlx5e_del_vxlan_port, + .ndo_udp_tunnel_add = udp_tunnel_nic_add_port, + .ndo_udp_tunnel_del = udp_tunnel_nic_del_port, .ndo_features_check = mlx5e_features_check, .ndo_set_vf_mac = mlx5e_set_vf_mac, .ndo_set_vf_rate = mlx5e_set_vf_rate, @@ -730,6 +730,7 @@ static void mlx5e_build_rep_netdev(struct net_device *netdev) /* we want a persistent mac for the uplink rep */ mlx5_query_mac_address(mdev, netdev->dev_addr); netdev->ethtool_ops = &mlx5e_uplink_rep_ethtool_ops; + mlx5e_vxlan_set_netdev_info(priv); mlx5e_dcbnl_build_rep_netdev(netdev); } else { netdev->netdev_ops = &mlx5e_netdev_ops_rep; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c index be34330d89cc44..3315afe2f8dce6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c @@ -42,21 +42,14 @@ struct mlx5_vxlan { struct mlx5_core_dev *mdev; /* max_num_ports is usuallly 4, 16 buckets is more than enough */ DECLARE_HASHTABLE(htable, 4); - int num_ports; struct mutex sync_lock; /* sync add/del port HW operations */ }; struct mlx5_vxlan_port { struct hlist_node hlist; - refcount_t refcount; u16 udp_port; }; -static inline u8 mlx5_vxlan_max_udp_ports(struct mlx5_core_dev *mdev) -{ - return MLX5_CAP_ETH(mdev, max_vxlan_udp_ports) ?: 4; -} - static int mlx5_vxlan_core_add_port_cmd(struct mlx5_core_dev *mdev, u16 port) { u32 in[MLX5_ST_SZ_DW(add_vxlan_udp_dport_in)] = {}; @@ -109,48 +102,24 @@ static struct mlx5_vxlan_port *vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 p int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port) { struct mlx5_vxlan_port *vxlanp; - int ret = 0; - - mutex_lock(&vxlan->sync_lock); - vxlanp = vxlan_lookup_port(vxlan, port); - if (vxlanp) { - refcount_inc(&vxlanp->refcount); - goto unlock; - } + int ret; - if (vxlan->num_ports >= mlx5_vxlan_max_udp_ports(vxlan->mdev)) { - mlx5_core_info(vxlan->mdev, - "UDP port (%d) not offloaded, max number of UDP ports (%d) are already offloaded\n", - port, mlx5_vxlan_max_udp_ports(vxlan->mdev)); - ret = -ENOSPC; - goto unlock; - } + vxlanp = kzalloc(sizeof(*vxlanp), GFP_KERNEL); + if (!vxlanp) + return -ENOMEM; + vxlanp->udp_port = port; ret = mlx5_vxlan_core_add_port_cmd(vxlan->mdev, port); - if (ret) - goto unlock; - - vxlanp = kzalloc(sizeof(*vxlanp), GFP_KERNEL); - if (!vxlanp) { - ret = -ENOMEM; - goto err_delete_port; + if (ret) { + kfree(vxlanp); + return ret; } - vxlanp->udp_port = port; - refcount_set(&vxlanp->refcount, 1); - + mutex_lock(&vxlan->sync_lock); hash_add_rcu(vxlan->htable, &vxlanp->hlist, port); - - vxlan->num_ports++; mutex_unlock(&vxlan->sync_lock); - return 0; - -err_delete_port: - mlx5_vxlan_core_del_port_cmd(vxlan->mdev, port); -unlock: - mutex_unlock(&vxlan->sync_lock); - return ret; + return 0; } int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port) @@ -161,18 +130,15 @@ int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port) mutex_lock(&vxlan->sync_lock); vxlanp = vxlan_lookup_port(vxlan, port); - if (!vxlanp) { + if (WARN_ON(!vxlanp)) { ret = -ENOENT; goto out_unlock; } - if (refcount_dec_and_test(&vxlanp->refcount)) { - hash_del_rcu(&vxlanp->hlist); - synchronize_rcu(); - mlx5_vxlan_core_del_port_cmd(vxlan->mdev, port); - kfree(vxlanp); - vxlan->num_ports--; - } + hash_del_rcu(&vxlanp->hlist); + synchronize_rcu(); + mlx5_vxlan_core_del_port_cmd(vxlan->mdev, port); + kfree(vxlanp); out_unlock: mutex_unlock(&vxlan->sync_lock); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.h index 6d599f4a8acdfc..ec766529f49b69 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.h @@ -37,6 +37,11 @@ struct mlx5_vxlan; struct mlx5_vxlan_port; +static inline u8 mlx5_vxlan_max_udp_ports(struct mlx5_core_dev *mdev) +{ + return MLX5_CAP_ETH(mdev, max_vxlan_udp_ports) ?: 4; +} + static inline bool mlx5_vxlan_allowed(struct mlx5_vxlan *vxlan) { /* not allowed reason is encoded in vxlan pointer as error,