diff mbox series

[net-next,6/6] mlx5: implement ethtool::get_fec_stats

Message ID 20210414034454.1970967-7-kuba@kernel.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ethtool: add standard FEC statistics | expand

Checks

Context Check Description
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netdev/fixes_present success Link
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netdev/subject_prefix success Link
netdev/cc_maintainers warning 1 maintainers not CCed: linux-rdma@vger.kernel.org
netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch warning CHECK: Macro argument 'ptr' may be better as '(ptr)' to avoid precedence issues
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Jakub Kicinski April 14, 2021, 3:44 a.m. UTC
Report corrected bits.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 .../ethernet/mellanox/mlx5/core/en_ethtool.c  |  9 ++++++
 .../ethernet/mellanox/mlx5/core/en_stats.c    | 28 +++++++++++++++++--
 .../ethernet/mellanox/mlx5/core/en_stats.h    |  2 ++
 3 files changed, 37 insertions(+), 2 deletions(-)

Comments

Saeed Mahameed April 15, 2021, 6:37 a.m. UTC | #1
On Tue, 2021-04-13 at 20:44 -0700, Jakub Kicinski wrote:
> Report corrected bits.
> 
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> ---
>  .../ethernet/mellanox/mlx5/core/en_ethtool.c  |  9 ++++++
>  .../ethernet/mellanox/mlx5/core/en_stats.c    | 28
> +++++++++++++++++--
>  
> -#define MLX5E_READ_CTR64_BE_F(ptr, c)                  \
> +#define MLX5E_READ_CTR64_BE_F(ptr, set, c)             \
>         be64_to_cpu(*(__be64 *)((char *)ptr +           \
>                 MLX5_BYTE_OFF(ppcnt_reg,                \
> -
>                        counter_set.eth_802_3_cntrs_grp_data_layout.c##
> _high)))
> +                             counter_set.set.c##_high)))

squint...... looks fine :) 

>  
>  void mlx5e_stats_pause_get(struct mlx5e_priv *priv,
>                            struct ethtool_pause_stats *pause_stats)
> @@ -791,9 +791,11 @@ void mlx5e_stats_pause_get(struct mlx5e_priv
> *priv,
>  
>         pause_stats->tx_pause_frames =
>                 MLX5E_READ_CTR64_BE_F(ppcnt_ieee_802_3,
> +                                    
> eth_802_3_cntrs_grp_data_layout,
>                                      
> a_pause_mac_ctrl_frames_transmitted);
>         pause_stats->rx_pause_frames =
>                 MLX5E_READ_CTR64_BE_F(ppcnt_ieee_802_3,
> +                                    
> eth_802_3_cntrs_grp_data_layout,
>                                      
> a_pause_mac_ctrl_frames_received);
>  }
>  
> @@ -1015,6 +1017,28 @@ 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_stats_fec_get(struct mlx5e_priv *priv,
> +                        struct ethtool_fec_stats *fec_stats)
> +{
> +       u32 ppcnt_phy_statistical[MLX5_ST_SZ_DW(ppcnt_reg)];
> +       struct mlx5_core_dev *mdev = priv->mdev;
> +       u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
> +       int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
> +
> +       if (!MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group))
> +               return;
> +
> +       MLX5_SET(ppcnt_reg, in, local_port, 1);
> +       MLX5_SET(ppcnt_reg, in, grp,
> MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
> +       mlx5_core_access_reg(mdev, in, sz, ppcnt_phy_statistical,
> +                            sz, MLX5_REG_PPCNT, 0, 0);
> +

other than that the FW might fail us here, LGTM.

Acked-by: Saeed Mahameed <saeedm@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index c8057a44d5ab..f17690cbeeea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1602,6 +1602,14 @@  static int mlx5e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	return mlx5_set_port_wol(mdev, mlx5_wol_mode);
 }
 
+static void mlx5e_get_fec_stats(struct net_device *netdev,
+				struct ethtool_fec_stats *fec_stats)
+{
+	struct mlx5e_priv *priv = netdev_priv(netdev);
+
+	mlx5e_stats_fec_get(priv, fec_stats);
+}
+
 static int mlx5e_get_fecparam(struct net_device *netdev,
 			      struct ethtool_fecparam *fecparam)
 {
@@ -2209,6 +2217,7 @@  const struct ethtool_ops mlx5e_ethtool_ops = {
 	.self_test         = mlx5e_self_test,
 	.get_msglevel      = mlx5e_get_msglevel,
 	.set_msglevel      = mlx5e_set_msglevel,
+	.get_fec_stats     = mlx5e_get_fec_stats,
 	.get_fecparam      = mlx5e_get_fecparam,
 	.set_fecparam      = mlx5e_set_fecparam,
 };
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index ae0570ea08bf..aca096cc2c1c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -768,10 +768,10 @@  static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(802_3)
 	mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 }
 
-#define MLX5E_READ_CTR64_BE_F(ptr, c)			\
+#define MLX5E_READ_CTR64_BE_F(ptr, set, c)		\
 	be64_to_cpu(*(__be64 *)((char *)ptr +		\
 		MLX5_BYTE_OFF(ppcnt_reg,		\
-			counter_set.eth_802_3_cntrs_grp_data_layout.c##_high)))
+			      counter_set.set.c##_high)))
 
 void mlx5e_stats_pause_get(struct mlx5e_priv *priv,
 			   struct ethtool_pause_stats *pause_stats)
@@ -791,9 +791,11 @@  void mlx5e_stats_pause_get(struct mlx5e_priv *priv,
 
 	pause_stats->tx_pause_frames =
 		MLX5E_READ_CTR64_BE_F(ppcnt_ieee_802_3,
+				      eth_802_3_cntrs_grp_data_layout,
 				      a_pause_mac_ctrl_frames_transmitted);
 	pause_stats->rx_pause_frames =
 		MLX5E_READ_CTR64_BE_F(ppcnt_ieee_802_3,
+				      eth_802_3_cntrs_grp_data_layout,
 				      a_pause_mac_ctrl_frames_received);
 }
 
@@ -1015,6 +1017,28 @@  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_stats_fec_get(struct mlx5e_priv *priv,
+			 struct ethtool_fec_stats *fec_stats)
+{
+	u32 ppcnt_phy_statistical[MLX5_ST_SZ_DW(ppcnt_reg)];
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
+	int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
+
+	if (!MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group))
+		return;
+
+	MLX5_SET(ppcnt_reg, in, local_port, 1);
+	MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
+	mlx5_core_access_reg(mdev, in, sz, ppcnt_phy_statistical,
+			     sz, MLX5_REG_PPCNT, 0, 0);
+
+	fec_stats->corrected_bits.total =
+		MLX5E_READ_CTR64_BE_F(ppcnt_phy_statistical,
+				      phys_layer_statistical_cntrs,
+				      phy_corrected_bits);
+}
+
 #define PPORT_ETH_EXT_OFF(c) \
 	MLX5_BYTE_OFF(ppcnt_reg, \
 		      counter_set.eth_extended_cntrs_grp_data_layout.c##_high)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 21d3b8747f93..3f0789e51eed 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -114,6 +114,8 @@  void mlx5e_stats_update_ndo_stats(struct mlx5e_priv *priv);
 
 void mlx5e_stats_pause_get(struct mlx5e_priv *priv,
 			   struct ethtool_pause_stats *pause_stats);
+void mlx5e_stats_fec_get(struct mlx5e_priv *priv,
+			 struct ethtool_fec_stats *fec_stats);
 
 /* Concrete NIC Stats */