From: Arkadi Sharshevsky <arkadis@mellanox.com>
Date: Mon, 25 Sep 2017 10:32:30 +0200
Subject: mlxsw: spectrum_dpipe: Add support for controlling nexthop counters
Patch-mainline: v4.15-rc1
Git-commit: 427e652aa34d90960f729c0b902c3c4a8a821b2e
References: bsc#1112374

Add support for controlling nexthop counters via dpipe.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c  |   24 ++++++++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c |   12 ++++-----
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h |    6 ++++
 3 files changed, 36 insertions(+), 6 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
@@ -1132,6 +1132,29 @@ out:
 	return err;
 }
 
+static int mlxsw_sp_dpipe_table_adj_counters_update(void *priv, bool enable)
+{
+	struct mlxsw_sp *mlxsw_sp = priv;
+	struct mlxsw_sp_nexthop *nh;
+	u32 adj_hash_index = 0;
+	u32 adj_index = 0;
+
+	mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router) {
+		if (!mlxsw_sp_nexthop_offload(nh) ||
+		    mlxsw_sp_nexthop_group_has_ipip(nh))
+			continue;
+
+		mlxsw_sp_nexthop_indexes(nh, &adj_index, &adj_hash_index);
+		if (enable)
+			mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh);
+		else
+			mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh);
+		mlxsw_sp_nexthop_update(mlxsw_sp,
+					adj_index + adj_hash_index, nh);
+	}
+	return 0;
+}
+
 static u64
 mlxsw_sp_dpipe_table_adj_size_get(void *priv)
 {
@@ -1149,6 +1172,7 @@ static struct devlink_dpipe_table_ops ml
 	.matches_dump = mlxsw_sp_dpipe_table_adj_matches_dump,
 	.actions_dump = mlxsw_sp_dpipe_table_adj_actions_dump,
 	.entries_dump = mlxsw_sp_dpipe_table_adj_entries_dump,
+	.counters_set_update = mlxsw_sp_dpipe_table_adj_counters_update,
 	.size_get = mlxsw_sp_dpipe_table_adj_size_get,
 };
 
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2070,8 +2070,8 @@ struct mlxsw_sp_nexthop_group {
 #define nh_rif	nexthops[0].rif
 };
 
-static void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
-					   struct mlxsw_sp_nexthop *nh)
+void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
+				    struct mlxsw_sp_nexthop *nh)
 {
 	struct devlink *devlink;
 
@@ -2086,8 +2086,8 @@ static void mlxsw_sp_nexthop_counter_all
 	nh->counter_valid = true;
 }
 
-static void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
-					  struct mlxsw_sp_nexthop *nh)
+void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
+				   struct mlxsw_sp_nexthop *nh)
 {
 	if (!nh->counter_valid)
 		return;
@@ -2433,8 +2433,8 @@ static int mlxsw_sp_adj_index_mass_updat
 	return 0;
 }
 
-static int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
-				   struct mlxsw_sp_nexthop *nh)
+int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
+			    struct mlxsw_sp_nexthop *nh)
 {
 	struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry;
 	char ratr_pl[MLXSW_REG_RATR_LEN];
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
@@ -122,5 +122,11 @@ bool mlxsw_sp_nexthop_group_has_ipip(str
 	     nh = mlxsw_sp_nexthop_next(router, nh))
 int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
 				 struct mlxsw_sp_nexthop *nh, u64 *p_counter);
+int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
+			    struct mlxsw_sp_nexthop *nh);
+void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
+				    struct mlxsw_sp_nexthop *nh);
+void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
+				   struct mlxsw_sp_nexthop *nh);
 
 #endif /* _MLXSW_ROUTER_H_*/