net: hns3: add support to utilize the firmware calculated shaping parameters

Since the calculation of the driver is fixed, if the number of
queue or clock changed, the calculated result may be inaccurate.

So for compatible and maintainable, add a new flag to tell the
firmware to calculate the shaping parameters with the specified
rate.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c

@@ -395,7 +395,7 @@ static u32 hclge_tm_get_shapping_para(u8 ir_b, u8 ir_u, u8 ir_s,
 
 static int hclge_tm_pg_shapping_cfg(struct hclge_dev *hdev,
 				    enum hclge_shap_bucket bucket, u8 pg_id,
-				    u32 shapping_para)
+				    u32 shapping_para, u32 rate)
 {
 	struct hclge_pg_shapping_cmd *shap_cfg_cmd;
 	enum hclge_opcode_type opcode;
@@ -411,6 +411,10 @@ static int hclge_tm_pg_shapping_cfg(struct hclge_dev *hdev,
 
 	shap_cfg_cmd->pg_shapping_para = cpu_to_le32(shapping_para);
 
+	hnae3_set_bit(shap_cfg_cmd->flag, HCLGE_TM_RATE_VLD, 1);
+
+	shap_cfg_cmd->pg_rate = cpu_to_le32(rate);
+
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
@@ -438,12 +442,16 @@ static int hclge_tm_port_shaper_cfg(struct hclge_dev *hdev)
 
 	shap_cfg_cmd->port_shapping_para = cpu_to_le32(shapping_para);
 
+	hnae3_set_bit(shap_cfg_cmd->flag, HCLGE_TM_RATE_VLD, 1);
+
+	shap_cfg_cmd->port_rate = cpu_to_le32(hdev->hw.mac.speed);
+
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
 static int hclge_tm_pri_shapping_cfg(struct hclge_dev *hdev,
 				     enum hclge_shap_bucket bucket, u8 pri_id,
-				     u32 shapping_para)
+				     u32 shapping_para, u32 rate)
 {
 	struct hclge_pri_shapping_cmd *shap_cfg_cmd;
 	enum hclge_opcode_type opcode;
@@ -460,6 +468,10 @@ static int hclge_tm_pri_shapping_cfg(struct hclge_dev *hdev,
 
 	shap_cfg_cmd->pri_shapping_para = cpu_to_le32(shapping_para);
 
+	hnae3_set_bit(shap_cfg_cmd->flag, HCLGE_TM_RATE_VLD, 1);
+
+	shap_cfg_cmd->pri_rate = cpu_to_le32(rate);
+
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
@@ -561,6 +573,9 @@ int hclge_tm_qs_shaper_cfg(struct hclge_vport *vport, int max_tx_rate)
 		shap_cfg_cmd->qs_id = cpu_to_le16(vport->qs_offset + i);
 		shap_cfg_cmd->qs_shapping_para = cpu_to_le32(shaper_para);
 
+		hnae3_set_bit(shap_cfg_cmd->flag, HCLGE_TM_RATE_VLD, 1);
+		shap_cfg_cmd->qs_rate = cpu_to_le32(max_tx_rate);
+
 		ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 		if (ret) {
 			dev_err(&hdev->pdev->dev,
@@ -762,9 +777,10 @@ static int hclge_tm_pg_shaper_cfg(struct hclge_dev *hdev)
 
 	/* Pg to pri */
 	for (i = 0; i < hdev->tm_info.num_pg; i++) {
+		u32 rate = hdev->tm_info.pg_info[i].bw_limit;
+
 		/* Calc shaper para */
-		ret = hclge_shaper_para_calc(hdev->tm_info.pg_info[i].bw_limit,
-					     HCLGE_SHAPER_LVL_PG,
+		ret = hclge_shaper_para_calc(rate, HCLGE_SHAPER_LVL_PG,
 					     &ir_para, max_tm_rate);
 		if (ret)
 			return ret;
@@ -774,7 +790,7 @@ static int hclge_tm_pg_shaper_cfg(struct hclge_dev *hdev)
 							 HCLGE_SHAPER_BS_S_DEF);
 		ret = hclge_tm_pg_shapping_cfg(hdev,
 					       HCLGE_TM_SHAP_C_BUCKET, i,
-					       shaper_para);
+					       shaper_para, rate);
 		if (ret)
 			return ret;
 
@@ -785,7 +801,7 @@ static int hclge_tm_pg_shaper_cfg(struct hclge_dev *hdev)
 							 HCLGE_SHAPER_BS_S_DEF);
 		ret = hclge_tm_pg_shapping_cfg(hdev,
 					       HCLGE_TM_SHAP_P_BUCKET, i,
-					       shaper_para);
+					       shaper_para, rate);
 		if (ret)
 			return ret;
 	}
@@ -891,8 +907,9 @@ static int hclge_tm_pri_tc_base_shaper_cfg(struct hclge_dev *hdev)
 	u32 i;
 
 	for (i = 0; i < hdev->tm_info.num_tc; i++) {
-		ret = hclge_shaper_para_calc(hdev->tm_info.tc_info[i].bw_limit,
-					     HCLGE_SHAPER_LVL_PRI,
+		u32 rate = hdev->tm_info.tc_info[i].bw_limit;
+
+		ret = hclge_shaper_para_calc(rate, HCLGE_SHAPER_LVL_PRI,
 					     &ir_para, max_tm_rate);
 		if (ret)
 			return ret;
@@ -901,7 +918,7 @@ static int hclge_tm_pri_tc_base_shaper_cfg(struct hclge_dev *hdev)
 							 HCLGE_SHAPER_BS_U_DEF,
 							 HCLGE_SHAPER_BS_S_DEF);
 		ret = hclge_tm_pri_shapping_cfg(hdev, HCLGE_TM_SHAP_C_BUCKET, i,
-						shaper_para);
+						shaper_para, rate);
 		if (ret)
 			return ret;
 
@@ -911,7 +928,7 @@ static int hclge_tm_pri_tc_base_shaper_cfg(struct hclge_dev *hdev)
 							 HCLGE_SHAPER_BS_U_DEF,
 							 HCLGE_SHAPER_BS_S_DEF);
 		ret = hclge_tm_pri_shapping_cfg(hdev, HCLGE_TM_SHAP_P_BUCKET, i,
-						shaper_para);
+						shaper_para, rate);
 		if (ret)
 			return ret;
 	}
@@ -936,7 +953,8 @@ static int hclge_tm_pri_vnet_base_shaper_pri_cfg(struct hclge_vport *vport)
 						 HCLGE_SHAPER_BS_U_DEF,
 						 HCLGE_SHAPER_BS_S_DEF);
 	ret = hclge_tm_pri_shapping_cfg(hdev, HCLGE_TM_SHAP_C_BUCKET,
-					vport->vport_id, shaper_para);
+					vport->vport_id, shaper_para,
+					vport->bw_limit);
 	if (ret)
 		return ret;
 
@@ -945,7 +963,8 @@ static int hclge_tm_pri_vnet_base_shaper_pri_cfg(struct hclge_vport *vport)
 						 HCLGE_SHAPER_BS_U_DEF,
 						 HCLGE_SHAPER_BS_S_DEF);
 	ret = hclge_tm_pri_shapping_cfg(hdev, HCLGE_TM_SHAP_P_BUCKET,
-					vport->vport_id, shaper_para);
+					vport->vport_id, shaper_para,
+					vport->bw_limit);
 	if (ret)
 		return ret;
 

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h

@@ -92,22 +92,34 @@ enum hclge_shap_bucket {
 	HCLGE_TM_SHAP_P_BUCKET,
 };
 
+/* set bit HCLGE_TM_RATE_VLD to 1 means use 'rate' to config shaping */
+#define HCLGE_TM_RATE_VLD	0
+
 struct hclge_pri_shapping_cmd {
 	u8 pri_id;
 	u8 rsvd[3];
 	__le32 pri_shapping_para;
+	u8 flag;
+	u8 rsvd1[3];
+	__le32 pri_rate;
 };
 
 struct hclge_pg_shapping_cmd {
 	u8 pg_id;
 	u8 rsvd[3];
 	__le32 pg_shapping_para;
+	u8 flag;
+	u8 rsvd1[3];
+	__le32 pg_rate;
 };
 
 struct hclge_qs_shapping_cmd {
 	__le16 qs_id;
 	u8 rsvd[2];
 	__le32 qs_shapping_para;
+	u8 flag;
+	u8 rsvd1[3];
+	__le32 qs_rate;
 };
 
 #define HCLGE_BP_GRP_NUM		32
@@ -150,6 +162,9 @@ struct hclge_pfc_stats_cmd {
 
 struct hclge_port_shapping_cmd {
 	__le32 port_shapping_para;
+	u8 flag;
+	u8 rsvd[3];
+	__le32 port_rate;
 };
 
 struct hclge_shaper_ir_para {