net/mlx5e: Switch per prio pfc counters to use stats group API

Switch the per prio pfc counters to use the new stats group API.
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

@@ -136,42 +136,9 @@ void mlx5e_build_ptys2ethtool_map(void)
 				       ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT);
 }
 
-static unsigned long mlx5e_query_pfc_combined(struct mlx5e_priv *priv)
-{
-	struct mlx5_core_dev *mdev = priv->mdev;
-	u8 pfc_en_tx;
-	u8 pfc_en_rx;
-	int err;
-
-	if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
-		return 0;
-
-	err = mlx5_query_port_pfc(mdev, &pfc_en_tx, &pfc_en_rx);
-
-	return err ? 0 : pfc_en_tx | pfc_en_rx;
-}
-
-static bool mlx5e_query_global_pause_combined(struct mlx5e_priv *priv)
-{
-	struct mlx5_core_dev *mdev = priv->mdev;
-	u32 rx_pause;
-	u32 tx_pause;
-	int err;
-
-	if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
-		return false;
-
-	err = mlx5_query_port_pause(mdev, &rx_pause, &tx_pause);
-
-	return err ? false : rx_pause | tx_pause;
-}
-
 #define MLX5E_NUM_RQ_STATS(priv) (NUM_RQ_STATS * (priv)->channels.num)
 #define MLX5E_NUM_SQ_STATS(priv) \
 	(NUM_SQ_STATS * (priv)->channels.num * (priv)->channels.params.num_tc)
-#define MLX5E_NUM_PFC_COUNTERS(priv) \
-	((mlx5e_query_global_pause_combined(priv) + hweight8(mlx5e_query_pfc_combined(priv))) * \
-	  NUM_PPORT_PER_PRIO_PFC_COUNTERS)
 
 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
 {
@@ -184,7 +151,6 @@ int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
 		return num_stats +
 		       MLX5E_NUM_RQ_STATS(priv) +
 		       MLX5E_NUM_SQ_STATS(priv) +
-		       MLX5E_NUM_PFC_COUNTERS(priv) +
 		       ARRAY_SIZE(mlx5e_pme_status_desc) +
 		       ARRAY_SIZE(mlx5e_pme_error_desc) +
 		       mlx5e_ipsec_get_count(priv);
@@ -208,30 +174,11 @@ static int mlx5e_get_sset_count(struct net_device *dev, int sset)
 
 static void mlx5e_fill_stats_strings(struct mlx5e_priv *priv, u8 *data)
 {
-	int i, j, tc, prio, idx = 0;
-	unsigned long pfc_combined;
+	int i, j, tc, idx = 0;
 
 	for (i = 0; i < mlx5e_num_stats_grps; i++)
 		idx = mlx5e_stats_grps[i].fill_strings(priv, data, idx);
 
-	pfc_combined = mlx5e_query_pfc_combined(priv);
-	for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
-		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
-			char pfc_string[ETH_GSTRING_LEN];
-
-			snprintf(pfc_string, sizeof(pfc_string), "prio%d", prio);
-			sprintf(data + (idx++) * ETH_GSTRING_LEN,
-				pport_per_prio_pfc_stats_desc[i].format, pfc_string);
-		}
-	}
-
-	if (mlx5e_query_global_pause_combined(priv)) {
-		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
-			sprintf(data + (idx++) * ETH_GSTRING_LEN,
-				pport_per_prio_pfc_stats_desc[i].format, "global");
-		}
-	}
-
 	/* port module event counters */
 	for (i = 0; i < ARRAY_SIZE(mlx5e_pme_status_desc); i++)
 		strcpy(data + (idx++) * ETH_GSTRING_LEN, mlx5e_pme_status_desc[i].format);
@@ -293,8 +240,7 @@ void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
 {
 	struct mlx5e_channels *channels;
 	struct mlx5_priv *mlx5_priv;
-	int i, j, tc, prio, idx = 0;
-	unsigned long pfc_combined;
+	int i, j, tc, idx = 0;
 
 	if (!data)
 		return;
@@ -308,21 +254,6 @@ void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
 	for (i = 0; i < mlx5e_num_stats_grps; i++)
 		idx = mlx5e_stats_grps[i].fill_stats(priv, data, idx);
 
-	pfc_combined = mlx5e_query_pfc_combined(priv);
-	for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
-		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
-			data[idx++] = MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[prio],
-							  pport_per_prio_pfc_stats_desc, i);
-		}
-	}
-
-	if (mlx5e_query_global_pause_combined(priv)) {
-		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
-			data[idx++] = MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[0],
-							  pport_per_prio_pfc_stats_desc, i);
-		}
-	}
-
 	/* port module event counters */
 	mlx5_priv =  &priv->mdev->priv;
 	for (i = 0; i < ARRAY_SIZE(mlx5e_pme_status_desc); i++)

drivers/net/ethernet/mellanox/mlx5/core/en_stats.c

@@ -502,6 +502,9 @@ static int mlx5e_grp_pcie_fill_stats(struct mlx5e_priv *priv, u64 *data,
 	return idx;
 }
 
+#define PPORT_PER_PRIO_OFF(c) \
+	MLX5_BYTE_OFF(ppcnt_reg, \
+		      counter_set.eth_per_prio_grp_data_layout.c##_high)
 static const struct counter_desc pport_per_prio_traffic_stats_desc[] = {
 	{ "rx_prio%d_bytes", PPORT_PER_PRIO_OFF(rx_octets) },
 	{ "rx_prio%d_packets", PPORT_PER_PRIO_OFF(rx_frames) },
@@ -547,6 +550,109 @@ static int mlx5e_grp_per_prio_traffic_fill_stats(struct mlx5e_priv *priv,
 	return idx;
 }
 
+static const struct counter_desc pport_per_prio_pfc_stats_desc[] = {
+	/* %s is "global" or "prio{i}" */
+	{ "rx_%s_pause", PPORT_PER_PRIO_OFF(rx_pause) },
+	{ "rx_%s_pause_duration", PPORT_PER_PRIO_OFF(rx_pause_duration) },
+	{ "tx_%s_pause", PPORT_PER_PRIO_OFF(tx_pause) },
+	{ "tx_%s_pause_duration", PPORT_PER_PRIO_OFF(tx_pause_duration) },
+	{ "rx_%s_pause_transition", PPORT_PER_PRIO_OFF(rx_pause_transition) },
+};
+
+#define NUM_PPORT_PER_PRIO_PFC_COUNTERS		ARRAY_SIZE(pport_per_prio_pfc_stats_desc)
+
+static unsigned long mlx5e_query_pfc_combined(struct mlx5e_priv *priv)
+{
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u8 pfc_en_tx;
+	u8 pfc_en_rx;
+	int err;
+
+	if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
+		return 0;
+
+	err = mlx5_query_port_pfc(mdev, &pfc_en_tx, &pfc_en_rx);
+
+	return err ? 0 : pfc_en_tx | pfc_en_rx;
+}
+
+static bool mlx5e_query_global_pause_combined(struct mlx5e_priv *priv)
+{
+	struct mlx5_core_dev *mdev = priv->mdev;
+	u32 rx_pause;
+	u32 tx_pause;
+	int err;
+
+	if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
+		return false;
+
+	err = mlx5_query_port_pause(mdev, &rx_pause, &tx_pause);
+
+	return err ? false : rx_pause | tx_pause;
+}
+
+static int mlx5e_grp_per_prio_pfc_get_num_stats(struct mlx5e_priv *priv)
+{
+	return (mlx5e_query_global_pause_combined(priv) +
+		hweight8(mlx5e_query_pfc_combined(priv))) *
+		NUM_PPORT_PER_PRIO_PFC_COUNTERS;
+}
+
+static int mlx5e_grp_per_prio_pfc_fill_strings(struct mlx5e_priv *priv,
+					       u8 *data,
+					       int idx)
+{
+	unsigned long pfc_combined;
+	int i, prio;
+
+	pfc_combined = mlx5e_query_pfc_combined(priv);
+	for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
+		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
+			char pfc_string[ETH_GSTRING_LEN];
+
+			snprintf(pfc_string, sizeof(pfc_string), "prio%d", prio);
+			sprintf(data + (idx++) * ETH_GSTRING_LEN,
+				pport_per_prio_pfc_stats_desc[i].format, pfc_string);
+		}
+	}
+
+	if (mlx5e_query_global_pause_combined(priv)) {
+		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
+			sprintf(data + (idx++) * ETH_GSTRING_LEN,
+				pport_per_prio_pfc_stats_desc[i].format, "global");
+		}
+	}
+
+	return idx;
+}
+
+static int mlx5e_grp_per_prio_pfc_fill_stats(struct mlx5e_priv *priv,
+					     u64 *data,
+					     int idx)
+{
+	unsigned long pfc_combined;
+	int i, prio;
+
+	pfc_combined = mlx5e_query_pfc_combined(priv);
+	for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
+		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
+			data[idx++] =
+				MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[prio],
+						    pport_per_prio_pfc_stats_desc, i);
+		}
+	}
+
+	if (mlx5e_query_global_pause_combined(priv)) {
+		for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
+			data[idx++] =
+				MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[0],
+						    pport_per_prio_pfc_stats_desc, i);
+		}
+	}
+
+	return idx;
+}
+
 const struct mlx5e_stats_grp mlx5e_stats_grps[] = {
 	{
 		.get_num_stats = mlx5e_grp_sw_get_num_stats,
@@ -598,6 +704,11 @@ const struct mlx5e_stats_grp mlx5e_stats_grps[] = {
 		.fill_strings = mlx5e_grp_per_prio_traffic_fill_strings,
 		.fill_stats = mlx5e_grp_per_prio_traffic_fill_stats,
 	},
+	{
+		.get_num_stats = mlx5e_grp_per_prio_pfc_get_num_stats,
+		.fill_strings = mlx5e_grp_per_prio_pfc_fill_strings,
+		.fill_stats = mlx5e_grp_per_prio_pfc_fill_stats,
+	},
 };
 
 const int mlx5e_num_stats_grps = ARRAY_SIZE(mlx5e_stats_grps);

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

@@ -114,9 +114,6 @@ struct mlx5e_vport_stats {
 #define PPORT_PHY_STATISTICAL_GET(pstats, c) \
 	MLX5_GET64(ppcnt_reg, (pstats)->phy_statistical_counters, \
 		   counter_set.phys_layer_statistical_cntrs.c##_high)
-#define PPORT_PER_PRIO_OFF(c) \
-	MLX5_BYTE_OFF(ppcnt_reg, \
-		      counter_set.eth_per_prio_grp_data_layout.c##_high)
 #define PPORT_PER_PRIO_GET(pstats, prio, c) \
 	MLX5_GET64(ppcnt_reg, pstats->per_prio_counters[prio], \
 		   counter_set.eth_per_prio_grp_data_layout.c##_high)
@@ -135,15 +132,6 @@ struct mlx5e_pport_stats {
 	__be64 eth_ext_counters[MLX5_ST_SZ_QW(ppcnt_reg)];
 };
 
-static const struct counter_desc pport_per_prio_pfc_stats_desc[] = {
-	/* %s is "global" or "prio{i}" */
-	{ "rx_%s_pause", PPORT_PER_PRIO_OFF(rx_pause) },
-	{ "rx_%s_pause_duration", PPORT_PER_PRIO_OFF(rx_pause_duration) },
-	{ "tx_%s_pause", PPORT_PER_PRIO_OFF(tx_pause) },
-	{ "tx_%s_pause_duration", PPORT_PER_PRIO_OFF(tx_pause_duration) },
-	{ "rx_%s_pause_transition", PPORT_PER_PRIO_OFF(rx_pause_transition) },
-};
-
 #define PCIE_PERF_GET(pcie_stats, c) \
 	MLX5_GET(mpcnt_reg, (pcie_stats)->pcie_perf_counters, \
 		 counter_set.pcie_perf_cntrs_grp_data_layout.c)
@@ -242,8 +230,6 @@ static const struct counter_desc sq_stats_desc[] = {
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, xmit_more) },
 };
 
-#define NUM_PPORT_PER_PRIO_PFC_COUNTERS \
-	ARRAY_SIZE(pport_per_prio_pfc_stats_desc)
 #define NUM_RQ_STATS			ARRAY_SIZE(rq_stats_desc)
 #define NUM_SQ_STATS			ARRAY_SIZE(sq_stats_desc)