net/mlx5e: E-Switch, Register devcom device with switch id key

Register devcom devices with switch id instead of guid.
Devcom interface is used to sync between ports in the eswitch,
e.g. Adding miss rules between the ports.
New eswitch devices could have the same guid but a different
switch id so its more correct to group according to switch id
which is the identifier if the ports are on the same eswitch.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

Author: roidayan

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -5194,11 +5194,12 @@ void mlx5e_tc_ht_cleanup(struct rhashtable *tc_ht)
 int mlx5e_tc_esw_init(struct mlx5_rep_uplink_priv *uplink_priv)
 {
 	const size_t sz_enc_opts = sizeof(struct tunnel_match_enc_opts);
+	struct netdev_phys_item_id ppid;
 	struct mlx5e_rep_priv *rpriv;
 	struct mapping_ctx *mapping;
 	struct mlx5_eswitch *esw;
 	struct mlx5e_priv *priv;
-	u64 mapping_id;
+	u64 mapping_id, key;
 	int err = 0;
 
 	rpriv = container_of(uplink_priv, struct mlx5e_rep_priv, uplink_priv);
@@ -5252,7 +5253,11 @@ int mlx5e_tc_esw_init(struct mlx5_rep_uplink_priv *uplink_priv)
 		goto err_action_counter;
 	}
 
-	mlx5_esw_offloads_devcom_init(esw);
+	err = dev_get_port_parent_id(priv->netdev, &ppid, false);
+	if (!err) {
+		memcpy(&key, &ppid.id, sizeof(key));
+		mlx5_esw_offloads_devcom_init(esw, key);
+	}
 
 	return 0;
 

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

@@ -382,7 +382,7 @@ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs);
 void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf);
 void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw);
 void mlx5_eswitch_disable(struct mlx5_eswitch *esw);
-void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw);
+void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw, u64 key);
 void mlx5_esw_offloads_devcom_cleanup(struct mlx5_eswitch *esw);
 bool mlx5_esw_offloads_devcom_is_ready(struct mlx5_eswitch *esw);
 int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
@@ -818,7 +818,7 @@ static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
 static inline int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs) { return 0; }
 static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf) {}
 static inline void mlx5_eswitch_disable(struct mlx5_eswitch *esw) {}
-static inline void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw) {}
+static inline void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw, u64 key) {}
 static inline void mlx5_esw_offloads_devcom_cleanup(struct mlx5_eswitch *esw) {}
 static inline bool mlx5_esw_offloads_devcom_is_ready(struct mlx5_eswitch *esw) { return false; }
 static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -2886,9 +2886,8 @@ static int mlx5_esw_offloads_devcom_event(int event,
 	return err;
 }
 
-void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw)
+void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw, u64 key)
 {
-	u64 guid;
 	int i;
 
 	for (i = 0; i < MLX5_MAX_PORTS; i++)
@@ -2902,12 +2901,10 @@ void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw)
 		return;
 
 	xa_init(&esw->paired);
-	guid = mlx5_query_nic_system_image_guid(esw->dev);
-
 	esw->num_peers = 0;
 	esw->devcom = mlx5_devcom_register_component(esw->dev->priv.devc,
 						     MLX5_DEVCOM_ESW_OFFLOADS,
-						     guid,
+						     key,
 						     mlx5_esw_offloads_devcom_event,
 						     esw);
 	if (IS_ERR_OR_NULL(esw->devcom))