[dpdk-dev] [PATCH 11/15] i40e: expose debug_write_register request

[Helin Zhang]

The firware api request of writes to hardware registers should be
exposed to driver. The new API of 'i40e_aq_debug_write_register'
is introduced for that.

Signed-off-by: Helin Zhang <helin.zhang at intel.com>
Reviewed-by: Chen Jing <jing.d.chen at intel.com>
---
 lib/librte_pmd_i40e/i40e/i40e_common.c    | 29 +++++++++++++++++++++++++++++
 lib/librte_pmd_i40e/i40e/i40e_prototype.h |  7 +++++--
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pmd_i40e/i40e/i40e_common.c b/lib/librte_pmd_i40e/i40e/i40e_common.c
index 84af47a..d901c8d 100644
--- a/lib/librte_pmd_i40e/i40e/i40e_common.c
+++ b/lib/librte_pmd_i40e/i40e/i40e_common.c
@@ -2358,6 +2358,35 @@ enum i40e_status_code i40e_aq_send_msg_to_vf(struct i40e_hw *hw, u16 vfid,
 }
 
 /**
+ * i40e_aq_debug_write_register
+ * @hw: pointer to the hw struct
+ * @reg_addr: register address
+ * @reg_val: register value
+ * @cmd_details: pointer to command details structure or NULL
+ *
+ * Write to a register using the admin queue commands
+ **/
+enum i40e_status_code i40e_aq_debug_write_register(struct i40e_hw *hw,
+				u32 reg_addr, u64 reg_val,
+				struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_debug_reg_read_write *cmd =
+		(struct i40e_aqc_debug_reg_read_write *)&desc.params.raw;
+	enum i40e_status_code status;
+
+	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_debug_write_reg);
+
+	cmd->address = CPU_TO_LE32(reg_addr);
+	cmd->value_high = CPU_TO_LE32((u32)(reg_val >> 32));
+	cmd->value_low = CPU_TO_LE32((u32)(reg_val & 0xFFFFFFFF));
+
+	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+	return status;
+}
+
+/**
  * i40e_aq_get_hmc_resource_profile
  * @hw: pointer to the hw struct
  * @profile: type of profile the HMC is to be set as
diff --git a/lib/librte_pmd_i40e/i40e/i40e_prototype.h b/lib/librte_pmd_i40e/i40e/i40e_prototype.h
index e559569..f819f9a 100644
--- a/lib/librte_pmd_i40e/i40e/i40e_prototype.h
+++ b/lib/librte_pmd_i40e/i40e/i40e_prototype.h
@@ -90,6 +90,9 @@ enum i40e_status_code i40e_aq_get_firmware_version(struct i40e_hw *hw,
 				u16 *fw_major_version, u16 *fw_minor_version,
 				u16 *api_major_version, u16 *api_minor_version,
 				struct i40e_asq_cmd_details *cmd_details);
+enum i40e_status_code i40e_aq_debug_write_register(struct i40e_hw *hw,
+				u32 reg_addr, u64 reg_val,
+				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_set_phy_debug(struct i40e_hw *hw, u8 cmd_flags,
 				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_set_default_vsi(struct i40e_hw *hw, u16 vsi_id,
@@ -103,11 +106,11 @@ enum i40e_status_code i40e_aq_set_phy_config(struct i40e_hw *hw,
 				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_set_fc(struct i40e_hw *hw, u8 *aq_failures,
 				  bool atomic_reset);
+enum i40e_status_code i40e_aq_set_phy_int_mask(struct i40e_hw *hw, u16 mask,
+				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_set_mac_config(struct i40e_hw *hw,
 				u16 max_frame_size, bool crc_en, u16 pacing,
 				struct i40e_asq_cmd_details *cmd_details);
-enum i40e_status_code i40e_aq_set_phy_int_mask(struct i40e_hw *hw, u16 mask,
-				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_get_local_advt_reg(struct i40e_hw *hw,
 				u64 *advt_reg,
 				struct i40e_asq_cmd_details *cmd_details);
-- 
1.8.1.4