netdev - [PATCH mlx5-next 02/18] net/mlx5: Added MCQI and MCQS registers' description to ifc

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Date:   Fri, 28 Jun 2019 22:35:50 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Shay Agroskin <shayag@...lanox.com>
Subject: [PATCH mlx5-next 02/18] net/mlx5: Added MCQI and MCQS registers'
 description to ifc

From: Shay Agroskin <shayag@...lanox.com>

Given a fw component index, the MCQI register allows us to query
this component's information (e.g. its version and capabilities).

Given a fw component index, the MCQS register allows us to query the
status of a fw component, including its type and state
(e.g. PRESET/IN_USE).
It can be used to find the index of a component of a specific type, by
sequentially increasing the component index, and querying each time the
type of the returned component.
If max component index is reached, 'last_index_flag' is set by the HCA.

These registers' description was added to query the running and pending
fw version of the HCA.

Signed-off-by: Shay Agroskin <shayag@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 include/linux/mlx5/driver.h   |  1 +
 include/linux/mlx5/mlx5_ifc.h | 59 +++++++++++++++++++++++++++++++++--
 2 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 87f77ded78d4..2ff624a91e3d 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -138,6 +138,7 @@ enum {
 	MLX5_REG_MTPPS		 = 0x9053,
 	MLX5_REG_MTPPSE		 = 0x9054,
 	MLX5_REG_MPEGC		 = 0x9056,
+	MLX5_REG_MCQS		 = 0x9060,
 	MLX5_REG_MCQI		 = 0x9061,
 	MLX5_REG_MCC		 = 0x9062,
 	MLX5_REG_MCDA		 = 0x9063,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index db00effaa83a..e2a77b5152a8 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -8542,7 +8542,7 @@ struct mlx5_ifc_mcam_access_reg_bits {
 	u8         mcda[0x1];
 	u8         mcc[0x1];
 	u8         mcqi[0x1];
-	u8         reserved_at_1f[0x1];
+	u8         mcqs[0x1];
 
 	u8         regs_95_to_87[0x9];
 	u8         mpegc[0x1];
@@ -9034,6 +9034,24 @@ struct mlx5_ifc_mtppse_reg_bits {
 	u8         reserved_at_40[0x40];
 };
 
+struct mlx5_ifc_mcqs_reg_bits {
+	u8         last_index_flag[0x1];
+	u8         reserved_at_1[0x7];
+	u8         fw_device[0x8];
+	u8         component_index[0x10];
+
+	u8         reserved_at_20[0x10];
+	u8         identifier[0x10];
+
+	u8         reserved_at_40[0x17];
+	u8         component_status[0x5];
+	u8         component_update_state[0x4];
+
+	u8         last_update_state_changer_type[0x4];
+	u8         last_update_state_changer_host_id[0x4];
+	u8         reserved_at_68[0x18];
+};
+
 struct mlx5_ifc_mcqi_cap_bits {
 	u8         supported_info_bitmask[0x20];
 
@@ -9054,6 +9072,43 @@ struct mlx5_ifc_mcqi_cap_bits {
 	u8         reserved_at_86[0x1a];
 };
 
+struct mlx5_ifc_mcqi_version_bits {
+	u8         reserved_at_0[0x2];
+	u8         build_time_valid[0x1];
+	u8         user_defined_time_valid[0x1];
+	u8         reserved_at_4[0x14];
+	u8         version_string_length[0x8];
+
+	u8         version[0x20];
+
+	u8         build_time[0x40];
+
+	u8         user_defined_time[0x40];
+
+	u8         build_tool_version[0x20];
+
+	u8         reserved_at_e0[0x20];
+
+	u8         version_string[92][0x8];
+};
+
+struct mlx5_ifc_mcqi_activation_method_bits {
+	u8         pending_server_ac_power_cycle[0x1];
+	u8         pending_server_dc_power_cycle[0x1];
+	u8         pending_server_reboot[0x1];
+	u8         pending_fw_reset[0x1];
+	u8         auto_activate[0x1];
+	u8         all_hosts_sync[0x1];
+	u8         device_hw_reset[0x1];
+	u8         reserved_at_7[0x19];
+};
+
+union mlx5_ifc_mcqi_reg_data_bits {
+	struct mlx5_ifc_mcqi_cap_bits               mcqi_caps;
+	struct mlx5_ifc_mcqi_version_bits           mcqi_version;
+	struct mlx5_ifc_mcqi_activation_method_bits mcqi_activation_mathod;
+};
+
 struct mlx5_ifc_mcqi_reg_bits {
 	u8         read_pending_component[0x1];
 	u8         reserved_at_1[0xf];
@@ -9071,7 +9126,7 @@ struct mlx5_ifc_mcqi_reg_bits {
 	u8         reserved_at_a0[0x10];
 	u8         data_size[0x10];
 
-	u8         data[0][0x20];
+	union mlx5_ifc_mcqi_reg_data_bits data[0];
 };
 
 struct mlx5_ifc_mcc_reg_bits {
-- 
2.21.0