mlxsw: spectrum_router: Create per-ASIC router operations

There are several differences in the router module between Spectrum-1
and Spectrum-{2,3}. Currently, this is only apparent in the router
interface (RIF) operations that are split between these ASICs.

A subsequent patch is going to introduce another difference between
these ASICs.

Create per-ASIC router operations that will encapsulate all these
differences. For now, these operations are only used to set the per-ASIC
RIF operations in 'mlxsw_sp->router->rif_ops_arr'. Note that this fields
was unused since commit 1f5b2303 ("mlxsw: spectrum: Set RIF ops per
ASIC type").
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -2934,7 +2934,6 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops;
 	mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr;
 	mlxsw_sp->mac_mask = mlxsw_sp1_mac_mask;
-	mlxsw_sp->rif_ops_arr = mlxsw_sp1_rif_ops_arr;
 	mlxsw_sp->sb_vals = &mlxsw_sp1_sb_vals;
 	mlxsw_sp->sb_ops = &mlxsw_sp1_sb_ops;
 	mlxsw_sp->port_type_speed_ops = &mlxsw_sp1_port_type_speed_ops;
@@ -2943,6 +2942,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->policer_core_ops = &mlxsw_sp1_policer_core_ops;
 	mlxsw_sp->trap_ops = &mlxsw_sp1_trap_ops;
 	mlxsw_sp->mall_ops = &mlxsw_sp1_mall_ops;
+	mlxsw_sp->router_ops = &mlxsw_sp1_router_ops;
 	mlxsw_sp->listeners = mlxsw_sp1_listener;
 	mlxsw_sp->listeners_count = ARRAY_SIZE(mlxsw_sp1_listener);
 	mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP1;
@@ -2965,7 +2965,6 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops;
 	mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr;
 	mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask;
-	mlxsw_sp->rif_ops_arr = mlxsw_sp2_rif_ops_arr;
 	mlxsw_sp->sb_vals = &mlxsw_sp2_sb_vals;
 	mlxsw_sp->sb_ops = &mlxsw_sp2_sb_ops;
 	mlxsw_sp->port_type_speed_ops = &mlxsw_sp2_port_type_speed_ops;
@@ -2974,6 +2973,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->policer_core_ops = &mlxsw_sp2_policer_core_ops;
 	mlxsw_sp->trap_ops = &mlxsw_sp2_trap_ops;
 	mlxsw_sp->mall_ops = &mlxsw_sp2_mall_ops;
+	mlxsw_sp->router_ops = &mlxsw_sp2_router_ops;
 	mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP2;
 
 	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info, extack);
@@ -2994,7 +2994,6 @@ static int mlxsw_sp3_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops;
 	mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr;
 	mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask;
-	mlxsw_sp->rif_ops_arr = mlxsw_sp2_rif_ops_arr;
 	mlxsw_sp->sb_vals = &mlxsw_sp2_sb_vals;
 	mlxsw_sp->sb_ops = &mlxsw_sp3_sb_ops;
 	mlxsw_sp->port_type_speed_ops = &mlxsw_sp2_port_type_speed_ops;
@@ -3003,6 +3002,7 @@ static int mlxsw_sp3_init(struct mlxsw_core *mlxsw_core,
 	mlxsw_sp->policer_core_ops = &mlxsw_sp2_policer_core_ops;
 	mlxsw_sp->trap_ops = &mlxsw_sp2_trap_ops;
 	mlxsw_sp->mall_ops = &mlxsw_sp2_mall_ops;
+	mlxsw_sp->router_ops = &mlxsw_sp2_router_ops;
 	mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP3;
 
 	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info, extack);

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

@@ -87,10 +87,10 @@ enum mlxsw_sp_rif_type {
 	MLXSW_SP_RIF_TYPE_MAX,
 };
 
-struct mlxsw_sp_rif_ops;
+struct mlxsw_sp_router_ops;
 
-extern const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[];
-extern const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[];
+extern const struct mlxsw_sp_router_ops mlxsw_sp1_router_ops;
+extern const struct mlxsw_sp_router_ops mlxsw_sp2_router_ops;
 
 struct mlxsw_sp_switchdev_ops;
 
@@ -180,7 +180,6 @@ struct mlxsw_sp {
 	const struct mlxsw_sp_acl_rulei_ops *acl_rulei_ops;
 	const struct mlxsw_sp_acl_tcam_ops *acl_tcam_ops;
 	const struct mlxsw_sp_nve_ops **nve_ops_arr;
-	const struct mlxsw_sp_rif_ops **rif_ops_arr;
 	const struct mlxsw_sp_sb_vals *sb_vals;
 	const struct mlxsw_sp_sb_ops *sb_ops;
 	const struct mlxsw_sp_port_type_speed_ops *port_type_speed_ops;
@@ -189,6 +188,7 @@ struct mlxsw_sp {
 	const struct mlxsw_sp_policer_core_ops *policer_core_ops;
 	const struct mlxsw_sp_trap_ops *trap_ops;
 	const struct mlxsw_sp_mall_ops *mall_ops;
+	const struct mlxsw_sp_router_ops *router_ops;
 	const struct mlxsw_listener *listeners;
 	size_t listeners_count;
 	u32 lowest_shaper_bs;

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

@@ -113,6 +113,10 @@ struct mlxsw_sp_rif_ops {
 	void (*fdb_del)(struct mlxsw_sp_rif *rif, const char *mac);
 };
 
+struct mlxsw_sp_router_ops {
+	int (*init)(struct mlxsw_sp *mlxsw_sp);
+};
+
 static struct mlxsw_sp_rif *
 mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp,
 			 const struct net_device *dev);
@@ -7712,7 +7716,7 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
 	int i, err;
 
 	type = mlxsw_sp_dev_rif_type(mlxsw_sp, params->dev);
-	ops = mlxsw_sp->rif_ops_arr[type];
+	ops = mlxsw_sp->router->rif_ops_arr[type];
 
 	vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id ? : RT_TABLE_MAIN, extack);
 	if (IS_ERR(vr))
@@ -8910,7 +8914,7 @@ static const struct mlxsw_sp_rif_ops mlxsw_sp1_rif_ipip_lb_ops = {
 	.deconfigure		= mlxsw_sp1_rif_ipip_lb_deconfigure,
 };
 
-const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[] = {
+static const struct mlxsw_sp_rif_ops *mlxsw_sp1_rif_ops_arr[] = {
 	[MLXSW_SP_RIF_TYPE_SUBPORT]	= &mlxsw_sp_rif_subport_ops,
 	[MLXSW_SP_RIF_TYPE_VLAN]	= &mlxsw_sp_rif_vlan_emu_ops,
 	[MLXSW_SP_RIF_TYPE_FID]		= &mlxsw_sp_rif_fid_ops,
@@ -9095,7 +9099,7 @@ static const struct mlxsw_sp_rif_ops mlxsw_sp2_rif_ipip_lb_ops = {
 	.deconfigure		= mlxsw_sp2_rif_ipip_lb_deconfigure,
 };
 
-const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[] = {
+static const struct mlxsw_sp_rif_ops *mlxsw_sp2_rif_ops_arr[] = {
 	[MLXSW_SP_RIF_TYPE_SUBPORT]	= &mlxsw_sp_rif_subport_ops,
 	[MLXSW_SP_RIF_TYPE_VLAN]	= &mlxsw_sp_rif_vlan_emu_ops,
 	[MLXSW_SP_RIF_TYPE_FID]		= &mlxsw_sp_rif_fid_ops,
@@ -9347,6 +9351,28 @@ static void mlxsw_sp_lb_rif_fini(struct mlxsw_sp *mlxsw_sp)
 	mlxsw_sp_router_ul_rif_put(mlxsw_sp, mlxsw_sp->router->lb_rif_index);
 }
 
+static int mlxsw_sp1_router_init(struct mlxsw_sp *mlxsw_sp)
+{
+	mlxsw_sp->router->rif_ops_arr = mlxsw_sp1_rif_ops_arr;
+
+	return 0;
+}
+
+const struct mlxsw_sp_router_ops mlxsw_sp1_router_ops = {
+	.init = mlxsw_sp1_router_init,
+};
+
+static int mlxsw_sp2_router_init(struct mlxsw_sp *mlxsw_sp)
+{
+	mlxsw_sp->router->rif_ops_arr = mlxsw_sp2_rif_ops_arr;
+
+	return 0;
+}
+
+const struct mlxsw_sp_router_ops mlxsw_sp2_router_ops = {
+	.init = mlxsw_sp2_router_init,
+};
+
 int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
 			 struct netlink_ext_ack *extack)
 {
@@ -9360,6 +9386,10 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
 	mlxsw_sp->router = router;
 	router->mlxsw_sp = mlxsw_sp;
 
+	err = mlxsw_sp->router_ops->init(mlxsw_sp);
+	if (err)
+		goto err_router_ops_init;
+
 	err = mlxsw_sp_router_xm_init(mlxsw_sp);
 	if (err)
 		goto err_xm_init;
@@ -9500,6 +9530,7 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
 err_ll_op_ctx_init:
 	mlxsw_sp_router_xm_fini(mlxsw_sp);
 err_xm_init:
+err_router_ops_init:
 	mutex_destroy(&mlxsw_sp->router->lock);
 	kfree(mlxsw_sp->router);
 	return err;