mlxsw: spectrum_router: Reduce mlxsw_sp_ipip_fib_entry_op_gre4()

Turned out that mlxsw_sp_ipip_fib_entry_op_gre4() does not need to
figure out the IP address and virtual router id. Those are exactly
the same as in the fib_entry it is called for. So just use that and
reduce mlxsw_sp_ipip_fib_entry_op_gre4() function to only call
mlxsw_sp_ipip_fib_entry_op_gre4_rtdp() make the ipip decap op
code similar to nve.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c

@@ -142,9 +142,9 @@ mlxsw_sp_ipip_nexthop_update_gre4(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
 }
 
 static int
-mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp,
-				     u32 tunnel_index,
-				     struct mlxsw_sp_ipip_entry *ipip_entry)
+mlxsw_sp_ipip_decap_config_gre4(struct mlxsw_sp *mlxsw_sp,
+				struct mlxsw_sp_ipip_entry *ipip_entry,
+				u32 tunnel_index)
 {
 	u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb);
 	u16 ul_rif_id = mlxsw_sp_ipip_lb_ul_rif_id(ipip_entry->ol_lb);
@@ -180,43 +180,6 @@ mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp,
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rtdp), rtdp_pl);
 }
 
-static int
-mlxsw_sp_ipip_fib_entry_op_gre4_do(struct mlxsw_sp *mlxsw_sp,
-				   const struct mlxsw_sp_router_ll_ops *ll_ops,
-				   struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
-				   u32 dip, u8 prefix_len, u16 ul_vr_id,
-				   enum mlxsw_sp_fib_entry_op op,
-				   u32 tunnel_index,
-				   struct mlxsw_sp_fib_entry_priv *priv)
-{
-	ll_ops->fib_entry_pack(op_ctx, MLXSW_SP_L3_PROTO_IPV4, op, ul_vr_id,
-			       prefix_len, (unsigned char *) &dip, priv);
-	ll_ops->fib_entry_act_ip2me_tun_pack(op_ctx, tunnel_index);
-	return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops);
-}
-
-static int mlxsw_sp_ipip_fib_entry_op_gre4(struct mlxsw_sp *mlxsw_sp,
-					   const struct mlxsw_sp_router_ll_ops *ll_ops,
-					   struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
-					   struct mlxsw_sp_ipip_entry *ipip_entry,
-					   enum mlxsw_sp_fib_entry_op op, u32 tunnel_index,
-					   struct mlxsw_sp_fib_entry_priv *priv)
-{
-	u16 ul_vr_id = mlxsw_sp_ipip_lb_ul_vr_id(ipip_entry->ol_lb);
-	__be32 dip;
-	int err;
-
-	err = mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(mlxsw_sp, tunnel_index,
-						   ipip_entry);
-	if (err)
-		return err;
-
-	dip = mlxsw_sp_ipip_netdev_saddr(MLXSW_SP_L3_PROTO_IPV4,
-					 ipip_entry->ol_dev).addr4;
-	return mlxsw_sp_ipip_fib_entry_op_gre4_do(mlxsw_sp, ll_ops, op_ctx, be32_to_cpu(dip),
-						  32, ul_vr_id, op, tunnel_index, priv);
-}
-
 static bool mlxsw_sp_ipip_tunnel_complete(enum mlxsw_sp_l3proto proto,
 					  const struct net_device *ol_dev)
 {
@@ -332,7 +295,7 @@ static const struct mlxsw_sp_ipip_ops mlxsw_sp_ipip_gre4_ops = {
 	.dev_type = ARPHRD_IPGRE,
 	.ul_proto = MLXSW_SP_L3_PROTO_IPV4,
 	.nexthop_update = mlxsw_sp_ipip_nexthop_update_gre4,
-	.fib_entry_op = mlxsw_sp_ipip_fib_entry_op_gre4,
+	.decap_config = mlxsw_sp_ipip_decap_config_gre4,
 	.can_offload = mlxsw_sp_ipip_can_offload_gre4,
 	.ol_loopback_config = mlxsw_sp_ipip_ol_loopback_config_gre4,
 	.ol_netdev_change = mlxsw_sp_ipip_ol_netdev_change_gre4,

drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.h

@@ -50,13 +50,9 @@ struct mlxsw_sp_ipip_ops {
 	(*ol_loopback_config)(struct mlxsw_sp *mlxsw_sp,
 			      const struct net_device *ol_dev);
 
-	int (*fib_entry_op)(struct mlxsw_sp *mlxsw_sp,
-			    const struct mlxsw_sp_router_ll_ops *ll_ops,
-			    struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
+	int (*decap_config)(struct mlxsw_sp *mlxsw_sp,
 			    struct mlxsw_sp_ipip_entry *ipip_entry,
-			    enum mlxsw_sp_fib_entry_op op,
-			    u32 tunnel_index,
-			    struct mlxsw_sp_fib_entry_priv *priv);
+			    u32 tunnel_index);
 
 	int (*ol_netdev_change)(struct mlxsw_sp *mlxsw_sp,
 				struct mlxsw_sp_ipip_entry *ipip_entry,

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

@@ -5142,9 +5142,9 @@ static void mlxsw_sp_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
 				    fib_entry->priv);
 }
 
-int mlxsw_sp_fib_entry_commit(struct mlxsw_sp *mlxsw_sp,
-			      struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
-			      const struct mlxsw_sp_router_ll_ops *ll_ops)
+static int mlxsw_sp_fib_entry_commit(struct mlxsw_sp *mlxsw_sp,
+				     struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
+				     const struct mlxsw_sp_router_ll_ops *ll_ops)
 {
 	bool postponed_for_bulk = false;
 	int err;
@@ -5307,13 +5307,21 @@ mlxsw_sp_fib_entry_op_ipip_decap(struct mlxsw_sp *mlxsw_sp,
 	const struct mlxsw_sp_router_ll_ops *ll_ops = fib_entry->fib_node->fib->ll_ops;
 	struct mlxsw_sp_ipip_entry *ipip_entry = fib_entry->decap.ipip_entry;
 	const struct mlxsw_sp_ipip_ops *ipip_ops;
+	int err;
 
 	if (WARN_ON(!ipip_entry))
 		return -EINVAL;
 
 	ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt];
-	return ipip_ops->fib_entry_op(mlxsw_sp, ll_ops, op_ctx, ipip_entry, op,
-				      fib_entry->decap.tunnel_index, fib_entry->priv);
+	err = ipip_ops->decap_config(mlxsw_sp, ipip_entry,
+				     fib_entry->decap.tunnel_index);
+	if (err)
+		return err;
+
+	mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op);
+	ll_ops->fib_entry_act_ip2me_tun_pack(op_ctx,
+					     fib_entry->decap.tunnel_index);
+	return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops);
 }
 
 static int mlxsw_sp_fib_entry_op_nve_decap(struct mlxsw_sp *mlxsw_sp,

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h

@@ -118,10 +118,6 @@ struct mlxsw_sp_router_ll_ops {
 	bool (*fib_entry_is_committed)(struct mlxsw_sp_fib_entry_priv *priv);
 };
 
-int mlxsw_sp_fib_entry_commit(struct mlxsw_sp *mlxsw_sp,
-			      struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
-			      const struct mlxsw_sp_router_ll_ops *ll_ops);
-
 struct mlxsw_sp_rif_ipip_lb;
 struct mlxsw_sp_rif_ipip_lb_config {
 	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;