netdev - [net-next 14/15] net/mlx5e: Create q counters on uplink representors

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Date:   Thu, 23 Jan 2020 06:40:02 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Vlad Buslov <vladbu@...lanox.com>,
        Roi Dayan <roid@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 14/15] net/mlx5e: Create q counters on uplink representors

From: Vlad Buslov <vladbu@...lanox.com>

Q counters were disabled for all types of representors to prevent an issue
where there is not enough resources to init q counters for 127 representor
instances. Enable q counters only for uplink representors to support
"rx_out_of_buffer", "rx_if_down_packets" counters in ethtool.

Signed-off-by: Vlad Buslov <vladbu@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en_rep.c  | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 01745941a11f..f11c86d1b9b7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1716,6 +1716,23 @@ static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
 	mlx5e_close_drop_rq(&priv->drop_rq);
 }
 
+static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
+{
+	int err = mlx5e_init_rep_rx(priv);
+
+	if (err)
+		return err;
+
+	mlx5e_create_q_counters(priv);
+	return 0;
+}
+
+static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
+{
+	mlx5e_destroy_q_counters(priv);
+	mlx5e_cleanup_rep_rx(priv);
+}
+
 static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
 {
 	struct mlx5_rep_uplink_priv *uplink_priv;
@@ -1921,8 +1938,8 @@ static const struct mlx5e_profile mlx5e_rep_profile = {
 static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
 	.init			= mlx5e_init_rep,
 	.cleanup		= mlx5e_cleanup_rep,
-	.init_rx		= mlx5e_init_rep_rx,
-	.cleanup_rx		= mlx5e_cleanup_rep_rx,
+	.init_rx		= mlx5e_init_ul_rep_rx,
+	.cleanup_rx		= mlx5e_cleanup_ul_rep_rx,
 	.init_tx		= mlx5e_init_rep_tx,
 	.cleanup_tx		= mlx5e_cleanup_rep_tx,
 	.enable		        = mlx5e_uplink_rep_enable,
-- 
2.24.1