netdev - [net-next 13/14] net/mlx5: Expose HW capability bits for port buffer per priority congestion counters

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Message-ID: <20190905215034.22713-14-saeedm@mellanox.com>
Date:   Thu, 5 Sep 2019 21:51:18 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Aya Levin <ayal@...lanox.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 13/14] net/mlx5: Expose HW capability bits for port buffer
 per priority congestion counters

From: Aya Levin <ayal@...lanox.com>

Map capability bit indicating that HCA supports port buffer's congestion
counters. Also map registers with the corresponding counters.

Signed-off-by: Aya Levin <ayal@...lanox.com>
Reviewed-by: Moshe Shemesh <moshe@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 include/linux/mlx5/device.h   |  1 +
 include/linux/mlx5/mlx5_ifc.h | 29 ++++++++++++++++++++++++-----
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 8dd081051a79..f3773e8536bb 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1316,6 +1316,7 @@ enum {
 	MLX5_PER_PRIORITY_COUNTERS_GROUP      = 0x10,
 	MLX5_PER_TRAFFIC_CLASS_COUNTERS_GROUP = 0x11,
 	MLX5_PHYSICAL_LAYER_COUNTERS_GROUP    = 0x12,
+	MLX5_PER_TRAFFIC_CLASS_CONGESTION_GROUP = 0x13,
 	MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP = 0x16,
 	MLX5_INFINIBAND_PORT_COUNTERS_GROUP   = 0x20,
 };
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 7d65c0578ac9..a487b681b516 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1196,7 +1196,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         rts2rts_qp_counters_set_id[0x1];
 	u8         reserved_at_16a[0x2];
 	u8         vnic_env_int_rq_oob[0x1];
-	u8         reserved_at_16d[0x2];
+	u8         sbcam_reg[0x1];
+	u8         reserved_at_16e[0x1];
 	u8         qcam_reg[0x1];
 	u8         gid_table_size[0x10];
 
@@ -1960,12 +1961,28 @@ struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits {
 	u8         port_xmit_wait[0x20];
 };
 
-struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {
+struct mlx5_ifc_eth_per_tc_prio_grp_data_layout_bits {
 	u8         transmit_queue_high[0x20];
 
 	u8         transmit_queue_low[0x20];
 
-	u8         reserved_at_40[0x780];
+	u8         no_buffer_discard_uc_high[0x20];
+
+	u8         no_buffer_discard_uc_low[0x20];
+
+	u8         reserved_at_80[0x740];
+};
+
+struct mlx5_ifc_eth_per_tc_congest_prio_grp_data_layout_bits {
+	u8         wred_discard_high[0x20];
+
+	u8         wred_discard_low[0x20];
+
+	u8         ecn_marked_tc_high[0x20];
+
+	u8         ecn_marked_tc_low[0x20];
+
+	u8         reserved_at_80[0x740];
 };
 
 struct mlx5_ifc_eth_per_prio_grp_data_layout_bits {
@@ -3642,7 +3659,8 @@ union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits {
 	struct mlx5_ifc_eth_3635_cntrs_grp_data_layout_bits eth_3635_cntrs_grp_data_layout;
 	struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits eth_extended_cntrs_grp_data_layout;
 	struct mlx5_ifc_eth_per_prio_grp_data_layout_bits eth_per_prio_grp_data_layout;
-	struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits eth_per_traffic_grp_data_layout;
+	struct mlx5_ifc_eth_per_tc_prio_grp_data_layout_bits eth_per_tc_prio_grp_data_layout;
+	struct mlx5_ifc_eth_per_tc_congest_prio_grp_data_layout_bits eth_per_tc_congest_prio_grp_data_layout;
 	struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits ib_port_cntrs_grp_data_layout;
 	struct mlx5_ifc_phys_layer_cntrs_bits phys_layer_cntrs;
 	struct mlx5_ifc_phys_layer_statistical_cntrs_bits phys_layer_statistical_cntrs;
@@ -9422,7 +9440,8 @@ union mlx5_ifc_ports_control_registers_document_bits {
 	struct mlx5_ifc_eth_802_3_cntrs_grp_data_layout_bits eth_802_3_cntrs_grp_data_layout;
 	struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits eth_extended_cntrs_grp_data_layout;
 	struct mlx5_ifc_eth_per_prio_grp_data_layout_bits eth_per_prio_grp_data_layout;
-	struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits eth_per_traffic_grp_data_layout;
+	struct mlx5_ifc_eth_per_tc_prio_grp_data_layout_bits eth_per_tc_prio_grp_data_layout;
+	struct mlx5_ifc_eth_per_tc_congest_prio_grp_data_layout_bits eth_per_tc_congest_prio_grp_data_layout;
 	struct mlx5_ifc_lane_2_module_mapping_bits lane_2_module_mapping;
 	struct mlx5_ifc_pamp_reg_bits pamp_reg;
 	struct mlx5_ifc_paos_reg_bits paos_reg;
-- 
2.21.0