net/mlx5e: Add generic macros to use metadata register mapping

There are many definitions to get bits and mask for different types of
metadata register mapping, add generic macros to unify them.
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_act.c

@@ -22,9 +22,9 @@ struct mlx5e_post_act_handle {
 	u32 id;
 };
 
-#define MLX5_POST_ACTION_BITS (mlx5e_tc_attr_to_reg_mappings[FTEID_TO_REG].mlen)
-#define MLX5_POST_ACTION_MAX GENMASK(MLX5_POST_ACTION_BITS - 1, 0)
-#define MLX5_POST_ACTION_MASK MLX5_POST_ACTION_MAX
+#define MLX5_POST_ACTION_BITS MLX5_REG_MAPPING_MBITS(FTEID_TO_REG)
+#define MLX5_POST_ACTION_MASK MLX5_REG_MAPPING_MASK(FTEID_TO_REG)
+#define MLX5_POST_ACTION_MAX MLX5_POST_ACTION_MASK
 
 struct mlx5e_post_act *
 mlx5e_tc_post_act_init(struct mlx5e_priv *priv, struct mlx5_fs_chains *chains,

drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c

@@ -36,8 +36,8 @@
 #define MLX5_CT_STATE_RELATED_BIT BIT(5)
 #define MLX5_CT_STATE_INVALID_BIT BIT(6)
 
-#define MLX5_CT_LABELS_BITS (mlx5e_tc_attr_to_reg_mappings[LABELS_TO_REG].mlen)
-#define MLX5_CT_LABELS_MASK GENMASK(MLX5_CT_LABELS_BITS - 1, 0)
+#define MLX5_CT_LABELS_BITS MLX5_REG_MAPPING_MBITS(LABELS_TO_REG)
+#define MLX5_CT_LABELS_MASK MLX5_REG_MAPPING_MASK(LABELS_TO_REG)
 
 /* Statically allocate modify actions for
  * ipv6 and port nat (5) + tuple fields (4) + nic mode zone restore (1) = 10.

drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h

@@ -84,10 +84,8 @@ struct mlx5_ct_attr {
 	.mlen = ESW_ZONE_ID_BITS,\
 }
 
-#define REG_MAPPING_MLEN(reg) (mlx5e_tc_attr_to_reg_mappings[reg].mlen)
-#define REG_MAPPING_MOFFSET(reg) (mlx5e_tc_attr_to_reg_mappings[reg].moffset)
-#define MLX5_CT_ZONE_BITS (mlx5e_tc_attr_to_reg_mappings[ZONE_TO_REG].mlen)
-#define MLX5_CT_ZONE_MASK GENMASK(MLX5_CT_ZONE_BITS - 1, 0)
+#define MLX5_CT_ZONE_BITS MLX5_REG_MAPPING_MBITS(ZONE_TO_REG)
+#define MLX5_CT_ZONE_MASK MLX5_REG_MAPPING_MASK(ZONE_TO_REG)
 
 #if IS_ENABLED(CONFIG_MLX5_TC_CT)
 

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

@@ -5086,7 +5086,7 @@ bool mlx5e_tc_update_skb(struct mlx5_cqe64 *cqe,
 
 		tc_skb_ext->chain = chain;
 
-		zone_restore_id = (reg_b >> REG_MAPPING_MOFFSET(NIC_ZONE_RESTORE_TO_REG)) &
+		zone_restore_id = (reg_b >> MLX5_REG_MAPPING_MOFFSET(NIC_ZONE_RESTORE_TO_REG)) &
 			ESW_ZONE_ID_MASK;
 
 		if (!mlx5e_tc_ct_restore_flow(tc->ct, skb,

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

@@ -242,6 +242,10 @@ struct mlx5e_tc_attr_to_reg_mapping {
 
 extern struct mlx5e_tc_attr_to_reg_mapping mlx5e_tc_attr_to_reg_mappings[];
 
+#define MLX5_REG_MAPPING_MOFFSET(reg_id) (mlx5e_tc_attr_to_reg_mappings[reg_id].moffset)
+#define MLX5_REG_MAPPING_MBITS(reg_id) (mlx5e_tc_attr_to_reg_mappings[reg_id].mlen)
+#define MLX5_REG_MAPPING_MASK(reg_id) (GENMASK(mlx5e_tc_attr_to_reg_mappings[reg_id].mlen - 1, 0))
+
 bool mlx5e_is_valid_eswitch_fwd_dev(struct mlx5e_priv *priv,
 				    struct net_device *out_dev);