Re: [PATCH net-next v10 4/5] net: rnpgbe: Add basic mbx_fw support

+/**
+ * mucse_mbx_powerup - Echo fw to powerup
+ * @hw: pointer to the HW structure
+ * @is_powerup: true for powerup, false for powerdown
+ *
+ * mucse_mbx_powerup echo fw to change working frequency
+ * to normal after received true, and reduce working frequency
+ * if false.
+ *
+ * Return: 0 on success, negative errno on failure
+ **/
+int mucse_mbx_powerup(struct mucse_hw *hw, bool is_powerup)
+{
+	struct mbx_fw_cmd_req req = {};
+	int len;
+	int err;
+
+	build_powerup(&req, is_powerup);
+	len = le16_to_cpu(req.datalen);
+	mutex_lock(&hw->mbx.lock);
+
+	if (is_powerup) {
+		err = mucse_write_posted_mbx(hw, (u32 *)&req,
+					     len);
+	} else {
+		err = mucse_write_mbx_pf(hw, (u32 *)&req,
+					 len);
+	}

+int mucse_mbx_reset_hw(struct mucse_hw *hw)
+{
+	struct mbx_fw_cmd_reply reply = {};
+	struct mbx_fw_cmd_req req = {};
+
+	build_reset_hw_req(&req);
+	return mucse_fw_send_cmd_wait(hw, &req, &reply);
+}