From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Thu, 31 May 2018 16:43:29 +0300
Subject: net/mlx5: Use flow counter pointer as input to the query function
Patch-mainline: v4.18-rc1
Git-commit: 930821e39d0a5f91ed58fea1692afe04f0fe0e1f
References: bsc#1103990 FATE#326006

This allows to un-expose the details of struct mlx5_fc and keep it
internal to the core driver.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c     |   15 ++++++---------
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.h     |    2 +-
 drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c |    4 ++--
 3 files changed, 9 insertions(+), 12 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -2104,21 +2104,18 @@ static int mlx5_eswitch_query_vport_drop
 	struct mlx5_vport *vport = &esw->vports[vport_idx];
 	u64 rx_discard_vport_down, tx_discard_vport_down;
 	u64 bytes = 0;
-	u16 idx = 0;
 	int err = 0;
 
 	if (!vport->enabled || esw->mode != SRIOV_LEGACY)
 		return 0;
 
-	if (vport->egress.drop_counter) {
-		idx = vport->egress.drop_counter->id;
-		mlx5_fc_query(dev, idx, &stats->rx_dropped, &bytes);
-	}
+	if (vport->egress.drop_counter)
+		mlx5_fc_query(dev, vport->egress.drop_counter,
+			      &stats->rx_dropped, &bytes);
 
-	if (vport->ingress.drop_counter) {
-		idx = vport->ingress.drop_counter->id;
-		mlx5_fc_query(dev, idx, &stats->tx_dropped, &bytes);
-	}
+	if (vport->ingress.drop_counter)
+		mlx5_fc_query(dev, vport->ingress.drop_counter,
+			      &stats->tx_dropped, &bytes);
 
 	if (!MLX5_CAP_GEN(dev, receive_discard_vport_down) &&
 	    !MLX5_CAP_GEN(dev, transmit_discard_vport_down))
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -233,7 +233,7 @@ void mlx5_fc_queue_stats_work(struct mlx
 			      unsigned long delay);
 void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev,
 				      unsigned long interval);
-int mlx5_fc_query(struct mlx5_core_dev *dev, u16 id,
+int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
 		  u64 *packets, u64 *bytes);
 
 int mlx5_init_fs(struct mlx5_core_dev *dev);
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
@@ -312,10 +312,10 @@ void mlx5_cleanup_fc_stats(struct mlx5_c
 	}
 }
 
-int mlx5_fc_query(struct mlx5_core_dev *dev, u16 id,
+int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
 		  u64 *packets, u64 *bytes)
 {
-	return mlx5_cmd_fc_query(dev, id, packets, bytes);
+	return mlx5_cmd_fc_query(dev, counter->id, packets, bytes);
 }
 
 void mlx5_fc_query_cached(struct mlx5_fc *counter,