net/mlx5: FW tracer, add hardware structures

This change adds the infrastructure to mlx5 core fw tracer.
It introduces the following 4 new registers:
MLX5_REG_MTRC_CAP  - Used to read tracer capabilities
MLX5_REG_MTRC_CONF - Used to set tracer configurations
MLX5_REG_MTRC_STDB - Used to query tracer strings database
MLX5_REG_MTRC_CTRL - Used to control the tracer

The capability of the tracing can be checked using mcam access
register, therefore, the mcam access register interface will expose
the tracer register.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 1cb1c0317b7788a5928b2f3411171d7f655ffbb0..4a4125b4279d49d37562fa44bbe36785d7cf511c 100644 (file)
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -138,6 +138,10 @@ enum {
        MLX5_REG_HOST_ENDIANNESS = 0x7004,
        MLX5_REG_MCIA            = 0x9014,
        MLX5_REG_MLCR            = 0x902b,
+       MLX5_REG_MTRC_CAP        = 0x9040,
+       MLX5_REG_MTRC_CONF       = 0x9041,
+       MLX5_REG_MTRC_STDB       = 0x9042,
+       MLX5_REG_MTRC_CTRL       = 0x9043,
        MLX5_REG_MPCNT           = 0x9051,
        MLX5_REG_MTPPS           = 0x9053,
        MLX5_REG_MTPPSE          = 0x9054,

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 1853e7fd6924ab37b4f1df162ee023b63ba5b3e1..bd7b71f54d590857e08eb5aae6c858cdc24a8a50 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -8112,7 +8112,9 @@ struct mlx5_ifc_mcam_access_reg_bits {
        u8         mcqi[0x1];
        u8         reserved_at_1f[0x1];
 
-       u8         regs_95_to_64[0x20];
+       u8         regs_95_to_68[0x1c];
+       u8         tracer_registers[0x4];
+
        u8         regs_63_to_32[0x20];
        u8         regs_31_to_0[0x20];
 };
@@ -9187,4 +9189,61 @@ struct mlx5_ifc_create_uctx_in_bits {
        struct mlx5_ifc_uctx_bits                     uctx;
 };
 
+struct mlx5_ifc_mtrc_string_db_param_bits {
+       u8         string_db_base_address[0x20];
+
+       u8         reserved_at_20[0x8];
+       u8         string_db_size[0x18];
+};
+
+struct mlx5_ifc_mtrc_cap_bits {
+       u8         trace_owner[0x1];
+       u8         trace_to_memory[0x1];
+       u8         reserved_at_2[0x4];
+       u8         trc_ver[0x2];
+       u8         reserved_at_8[0x14];
+       u8         num_string_db[0x4];
+
+       u8         first_string_trace[0x8];
+       u8         num_string_trace[0x8];
+       u8         reserved_at_30[0x28];
+
+       u8         log_max_trace_buffer_size[0x8];
+
+       u8         reserved_at_60[0x20];
+
+       struct mlx5_ifc_mtrc_string_db_param_bits string_db_param[8];
+
+       u8         reserved_at_280[0x180];
+};
+
+struct mlx5_ifc_mtrc_conf_bits {
+       u8         reserved_at_0[0x1c];
+       u8         trace_mode[0x4];
+       u8         reserved_at_20[0x18];
+       u8         log_trace_buffer_size[0x8];
+       u8         trace_mkey[0x20];
+       u8         reserved_at_60[0x3a0];
+};
+
+struct mlx5_ifc_mtrc_stdb_bits {
+       u8         string_db_index[0x4];
+       u8         reserved_at_4[0x4];
+       u8         read_size[0x18];
+       u8         start_offset[0x20];
+       u8         string_db_data[0];
+};
+
+struct mlx5_ifc_mtrc_ctrl_bits {
+       u8         trace_status[0x2];
+       u8         reserved_at_2[0x2];
+       u8         arm_event[0x1];
+       u8         reserved_at_5[0xb];
+       u8         modify_field_select[0x10];
+       u8         reserved_at_20[0x2b];
+       u8         current_timestamp52_32[0x15];
+       u8         current_timestamp31_0[0x20];
+       u8         reserved_at_80[0x180];
+};
+
 #endif /* MLX5_IFC_H */