net/mlx5e: ethtool: get_link_ext_stats for PHY down events

Implement ethtool_op get_link_ext_stats for PHY down events

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 24aa25d..d9397ff 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -2463,4 +2463,5 @@ const struct ethtool_ops mlx5e_ethtool_ops = {
        .get_eth_mac_stats = mlx5e_get_eth_mac_stats,
        .get_eth_ctrl_stats = mlx5e_get_eth_ctrl_stats,
        .get_rmon_stats    = mlx5e_get_rmon_stats,
+       .get_link_ext_stats = mlx5e_get_link_ext_stats
 };

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index 03c1841..70c4ea3 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -1241,6 +1241,23 @@ static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(phy)
        mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 }
 
+void mlx5e_get_link_ext_stats(struct net_device *dev,
+                             struct ethtool_link_ext_stats *stats)
+{
+       struct mlx5e_priv *priv = netdev_priv(dev);
+       u32 out[MLX5_ST_SZ_DW(ppcnt_reg)] = {};
+       u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {};
+       int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+
+       MLX5_SET(ppcnt_reg, in, local_port, 1);
+       MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
+       mlx5_core_access_reg(priv->mdev, in, sz, out,
+                            MLX5_ST_SZ_BYTES(ppcnt_reg), MLX5_REG_PPCNT, 0, 0);
+
+       stats->link_down_events = MLX5_GET(ppcnt_reg, out,
+                                          counter_set.phys_layer_cntrs.link_down_events);
+}
+
 static int fec_num_lanes(struct mlx5_core_dev *dev)
 {
        u32 out[MLX5_ST_SZ_DW(pmlp_reg)] = {};

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 9f78108..cbc831c 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -126,6 +126,8 @@ void mlx5e_stats_eth_ctrl_get(struct mlx5e_priv *priv,
 void mlx5e_stats_rmon_get(struct mlx5e_priv *priv,
                          struct ethtool_rmon_stats *rmon,
                          const struct ethtool_rmon_hist_range **ranges);
+void mlx5e_get_link_ext_stats(struct net_device *dev,
+                             struct ethtool_link_ext_stats *stats);
 
 /* Concrete NIC Stats */