net/mlx5: Add RX buffer fullness counters infrastructure

Add capability bit in PCAM register and counters to PPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index ba533b3..cf7ff52 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1538,7 +1538,17 @@ struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits {
 
        u8         port_transmit_wait_low[0x20];
 
-       u8         reserved_at_40[0x780];
+       u8         reserved_at_40[0x100];
+
+       u8         rx_buffer_almost_full_high[0x20];
+
+       u8         rx_buffer_almost_full_low[0x20];
+
+       u8         rx_buffer_full_high[0x20];
+
+       u8         rx_buffer_full_low[0x20];
+
+       u8         reserved_at_1c0[0x600];
 };
 
 struct mlx5_ifc_eth_3635_cntrs_grp_data_layout_bits {
@@ -7723,8 +7733,9 @@ struct mlx5_ifc_peir_reg_bits {
 };
 
 struct mlx5_ifc_pcam_enhanced_features_bits {
-       u8         reserved_at_0[0x7c];
+       u8         reserved_at_0[0x7b];
 
+       u8         rx_buffer_fullness_counters[0x1];
        u8         ptys_connector_type[0x1];
        u8         reserved_at_7d[0x1];
        u8         ppcnt_discard_group[0x1];