mlxsw: spectrum_kvdl: Pass entry type to alloc/free

Future Spectrum-2 KVD linear manager implementation needs to know type
of the entry to alloc and free. So define the types in an enum and
pass it down to alloc and free functions. Once the entry type
is passed down, KVDL common part knows sizes of each entry types,
so replace size function arg with entry count.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -438,28 +438,55 @@ mlxsw_sp_port_vlan_router_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan);
 void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif);
 
 /* spectrum_kvdl.c */
+enum mlxsw_sp_kvdl_entry_type {
+	MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+	MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
+	MLXSW_SP_KVDL_ENTRY_TYPE_PBS,
+	MLXSW_SP_KVDL_ENTRY_TYPE_MCRIGR,
+};
+
+static inline unsigned int
+mlxsw_sp_kvdl_entry_size(enum mlxsw_sp_kvdl_entry_type type)
+{
+	switch (type) {
+	case MLXSW_SP_KVDL_ENTRY_TYPE_ADJ: /* fall through */
+	case MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET: /* fall through */
+	case MLXSW_SP_KVDL_ENTRY_TYPE_PBS: /* fall through */
+	case MLXSW_SP_KVDL_ENTRY_TYPE_MCRIGR: /* fall through */
+	default:
+		return 1;
+	}
+}
+
 struct mlxsw_sp_kvdl_ops {
 	size_t priv_size;
 	int (*init)(struct mlxsw_sp *mlxsw_sp, void *priv);
 	void (*fini)(struct mlxsw_sp *mlxsw_sp, void *priv);
 	int (*alloc)(struct mlxsw_sp *mlxsw_sp, void *priv,
+		     enum mlxsw_sp_kvdl_entry_type type,
 		     unsigned int entry_count, u32 *p_entry_index);
 	void (*free)(struct mlxsw_sp *mlxsw_sp, void *priv,
+		     enum mlxsw_sp_kvdl_entry_type type,
 		     int entry_index);
 	int (*alloc_size_query)(struct mlxsw_sp *mlxsw_sp, void *priv,
+				enum mlxsw_sp_kvdl_entry_type type,
 				unsigned int entry_count,
-				unsigned int *p_alloc_size);
+				unsigned int *p_alloc_count);
 	int (*resources_register)(struct mlxsw_sp *mlxsw_sp, void *priv);
 };
 
 int mlxsw_sp_kvdl_init(struct mlxsw_sp *mlxsw_sp);
 void mlxsw_sp_kvdl_fini(struct mlxsw_sp *mlxsw_sp);
-int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count,
-			u32 *p_entry_index);
-void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp, int entry_index);
-int mlxsw_sp_kvdl_alloc_size_query(struct mlxsw_sp *mlxsw_sp,
-				   unsigned int entry_count,
-				   unsigned int *p_alloc_size);
+int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp,
+			enum mlxsw_sp_kvdl_entry_type type,
+			unsigned int entry_count, u32 *p_entry_index);
+void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp,
+			enum mlxsw_sp_kvdl_entry_type type,
+			int entry_index);
+int mlxsw_sp_kvdl_alloc_count_query(struct mlxsw_sp *mlxsw_sp,
+				    enum mlxsw_sp_kvdl_entry_type type,
+				    unsigned int entry_count,
+				    unsigned int *p_alloc_count);
 
 /* spectrum1_kvdl.c */
 extern const struct mlxsw_sp_kvdl_ops mlxsw_sp1_kvdl_ops;

drivers/net/ethernet/mellanox/mlxsw/spectrum1_kvdl.c

@@ -175,6 +175,7 @@ static void mlxsw_sp1_kvdl_part_free(struct mlxsw_sp1_kvdl_part *part,
 }
 
 static int mlxsw_sp1_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, void *priv,
+				enum mlxsw_sp_kvdl_entry_type type,
 				unsigned int entry_count,
 				u32 *p_entry_index)
 {
@@ -192,6 +193,7 @@ static int mlxsw_sp1_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, void *priv,
 }
 
 static void mlxsw_sp1_kvdl_free(struct mlxsw_sp *mlxsw_sp, void *priv,
+				enum mlxsw_sp_kvdl_entry_type type,
 				int entry_index)
 {
 	struct mlxsw_sp1_kvdl *kvdl = priv;
@@ -204,7 +206,9 @@ static void mlxsw_sp1_kvdl_free(struct mlxsw_sp *mlxsw_sp, void *priv,
 }
 
 static int mlxsw_sp1_kvdl_alloc_size_query(struct mlxsw_sp *mlxsw_sp,
-					   void *priv, unsigned int entry_count,
+					   void *priv,
+					   enum mlxsw_sp_kvdl_entry_type type,
+					   unsigned int entry_count,
 					   unsigned int *p_alloc_size)
 {
 	struct mlxsw_sp1_kvdl *kvdl = priv;

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

@@ -37,8 +37,6 @@
 #include "core_acl_flex_actions.h"
 #include "spectrum_span.h"
 
-#define MLXSW_SP_KVDL_ACT_EXT_SIZE 1
-
 static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
 				     char *enc_actions, bool is_first)
 {
@@ -53,8 +51,8 @@ static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
 	if (is_first)
 		return 0;
 
-	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ACT_EXT_SIZE,
-				  &kvdl_index);
+	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
+				  1, &kvdl_index);
 	if (err)
 		return err;
 	mlxsw_reg_pefa_pack(pefa_pl, kvdl_index, enc_actions);
@@ -65,7 +63,8 @@ static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
 	return 0;
 
 err_pefa_write:
-	mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
+			   kvdl_index);
 	return err;
 }
 
@@ -76,7 +75,8 @@ static void mlxsw_sp_act_kvdl_set_del(void *priv, u32 kvdl_index,
 
 	if (is_first)
 		return;
-	mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
+			   kvdl_index);
 }
 
 static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
@@ -87,7 +87,8 @@ static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
 	u32 kvdl_index;
 	int err;
 
-	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1, &kvdl_index);
+	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_PBS,
+				  1, &kvdl_index);
 	if (err)
 		return err;
 	mlxsw_reg_ppbs_pack(ppbs_pl, kvdl_index, local_port);
@@ -98,7 +99,8 @@ static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
 	return 0;
 
 err_ppbs_write:
-	mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_PBS,
+			   kvdl_index);
 	return err;
 }
 
@@ -106,7 +108,8 @@ static void mlxsw_sp_act_kvdl_fwd_entry_del(void *priv, u32 kvdl_index)
 {
 	struct mlxsw_sp *mlxsw_sp = priv;
 
-	mlxsw_sp_kvdl_free(mlxsw_sp, kvdl_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_PBS,
+			   kvdl_index);
 }
 
 static int

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

@@ -74,28 +74,32 @@ void mlxsw_sp_kvdl_fini(struct mlxsw_sp *mlxsw_sp)
 	kfree(kvdl);
 }
 
-int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count,
-			u32 *p_entry_index)
+int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp,
+			enum mlxsw_sp_kvdl_entry_type type,
+			unsigned int entry_count, u32 *p_entry_index)
 {
 	struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
 
-	return kvdl->kvdl_ops->alloc(mlxsw_sp, kvdl->priv,
+	return kvdl->kvdl_ops->alloc(mlxsw_sp, kvdl->priv, type,
 				     entry_count, p_entry_index);
 }
 
-void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp, int entry_index)
+void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp,
+			enum mlxsw_sp_kvdl_entry_type type,
+			int entry_index)
 {
 	struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
 
-	kvdl->kvdl_ops->free(mlxsw_sp, kvdl->priv, entry_index);
+	kvdl->kvdl_ops->free(mlxsw_sp, kvdl->priv, type, entry_index);
 }
 
-int mlxsw_sp_kvdl_alloc_size_query(struct mlxsw_sp *mlxsw_sp,
-				   unsigned int entry_count,
-				   unsigned int *p_alloc_size)
+int mlxsw_sp_kvdl_alloc_count_query(struct mlxsw_sp *mlxsw_sp,
+				    enum mlxsw_sp_kvdl_entry_type type,
+				    unsigned int entry_count,
+				    unsigned int *p_alloc_count)
 {
 	struct mlxsw_sp_kvdl *kvdl = mlxsw_sp->kvdl;
 
-	return kvdl->kvdl_ops->alloc_size_query(mlxsw_sp, kvdl->priv,
-						entry_count, p_alloc_size);
+	return kvdl->kvdl_ops->alloc_size_query(mlxsw_sp, kvdl->priv, type,
+						entry_count, p_alloc_count);
 }

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

@@ -84,8 +84,6 @@ mlxsw_sp_mr_erif_list_init(struct mlxsw_sp_mr_tcam_erif_list *erif_list)
 	INIT_LIST_HEAD(&erif_list->erif_sublists);
 }
 
-#define MLXSW_SP_KVDL_RIGR2_SIZE 1
-
 static struct mlxsw_sp_mr_erif_sublist *
 mlxsw_sp_mr_erif_sublist_create(struct mlxsw_sp *mlxsw_sp,
 				struct mlxsw_sp_mr_tcam_erif_list *erif_list)
@@ -96,8 +94,8 @@ mlxsw_sp_mr_erif_sublist_create(struct mlxsw_sp *mlxsw_sp,
 	erif_sublist = kzalloc(sizeof(*erif_sublist), GFP_KERNEL);
 	if (!erif_sublist)
 		return ERR_PTR(-ENOMEM);
-	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_RIGR2_SIZE,
-				  &erif_sublist->rigr2_kvdl_index);
+	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_MCRIGR,
+				  1, &erif_sublist->rigr2_kvdl_index);
 	if (err) {
 		kfree(erif_sublist);
 		return ERR_PTR(err);
@@ -112,7 +110,8 @@ mlxsw_sp_mr_erif_sublist_destroy(struct mlxsw_sp *mlxsw_sp,
 				 struct mlxsw_sp_mr_erif_sublist *erif_sublist)
 {
 	list_del(&erif_sublist->list);
-	mlxsw_sp_kvdl_free(mlxsw_sp, erif_sublist->rigr2_kvdl_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_MCRIGR,
+			   erif_sublist->rigr2_kvdl_index);
 	kfree(erif_sublist);
 }
 

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

@@ -1106,7 +1106,8 @@ mlxsw_sp_fib_entry_decap_init(struct mlxsw_sp *mlxsw_sp,
 	u32 tunnel_index;
 	int err;
 
-	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1, &tunnel_index);
+	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+				  1, &tunnel_index);
 	if (err)
 		return err;
 
@@ -1122,7 +1123,8 @@ static void mlxsw_sp_fib_entry_decap_fini(struct mlxsw_sp *mlxsw_sp,
 	/* Unlink this node from the IPIP entry that it's the decap entry of. */
 	fib_entry->decap.ipip_entry->decap_fib_entry = NULL;
 	fib_entry->decap.ipip_entry = NULL;
-	mlxsw_sp_kvdl_free(mlxsw_sp, fib_entry->decap.tunnel_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+			   fib_entry->decap.tunnel_index);
 }
 
 static struct mlxsw_sp_fib_node *
@@ -3162,8 +3164,9 @@ static int mlxsw_sp_fix_adj_grp_size(struct mlxsw_sp *mlxsw_sp,
 	 * by the device and make sure the request can be satisfied.
 	 */
 	mlxsw_sp_adj_grp_size_round_up(p_adj_grp_size);
-	err = mlxsw_sp_kvdl_alloc_size_query(mlxsw_sp, *p_adj_grp_size,
-					     &alloc_size);
+	err = mlxsw_sp_kvdl_alloc_count_query(mlxsw_sp,
+					      MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+					      *p_adj_grp_size, &alloc_size);
 	if (err)
 		return err;
 	/* It is possible the allocation results in more allocated
@@ -3275,7 +3278,8 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
 		/* No valid allocation size available. */
 		goto set_trap;
 
-	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, ecmp_size, &adj_index);
+	err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+				  ecmp_size, &adj_index);
 	if (err) {
 		/* We ran out of KVD linear space, just set the
 		 * trap and let everything flow through kernel.
@@ -3310,7 +3314,8 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
 
 	err = mlxsw_sp_adj_index_mass_update(mlxsw_sp, nh_grp,
 					     old_adj_index, old_ecmp_size);
-	mlxsw_sp_kvdl_free(mlxsw_sp, old_adj_index);
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+			   old_adj_index);
 	if (err) {
 		dev_warn(mlxsw_sp->bus_info->dev, "Failed to mass-update adjacency index for nexthop group.\n");
 		goto set_trap;
@@ -3332,7 +3337,8 @@ set_trap:
 	if (err)
 		dev_warn(mlxsw_sp->bus_info->dev, "Failed to set traps for fib entries.\n");
 	if (old_adj_index_valid)
-		mlxsw_sp_kvdl_free(mlxsw_sp, nh_grp->adj_index);
+		mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
+				   nh_grp->adj_index);
 }
 
 static void __mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp_nexthop *nh,