[dpdk-dev] [PATCH 06/13] net/hns3: encapsulate a port shaping interface

[Lijun Ou <oulijun@huawei.com>]

From: Huisong Li <lihuisong@huawei.com>

When rate of port changes, the rate limit of the port needs to
be updated. So it is necessary to encapsulate an interface that
configures the rate limit based on the rate.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
---
 drivers/net/hns3/hns3_dcb.c    | 22 +++++++++++++++++-----
 drivers/net/hns3/hns3_dcb.h    |  2 +-
 drivers/net/hns3/hns3_ethdev.c | 10 +++-------
 3 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c
index 7fc6ac9..ebfc240 100644
--- a/drivers/net/hns3/hns3_dcb.c
+++ b/drivers/net/hns3/hns3_dcb.c
@@ -330,8 +330,8 @@ hns3_dcb_get_shapping_para(uint8_t ir_b, uint8_t ir_u, uint8_t ir_s,
 	return shapping_para;
 }
 
-int
-hns3_dcb_port_shaper_cfg(struct hns3_hw *hw)
+static int
+hns3_dcb_port_shaper_cfg(struct hns3_hw *hw, uint32_t speed)
 {
 	struct hns3_port_shapping_cmd *shap_cfg_cmd;
 	struct hns3_shaper_parameter shaper_parameter;
@@ -340,7 +340,7 @@ hns3_dcb_port_shaper_cfg(struct hns3_hw *hw)
 	struct hns3_cmd_desc desc;
 	int ret;
 
-	ret = hns3_shaper_para_calc(hw, hw->mac.link_speed,
+	ret = hns3_shaper_para_calc(hw, speed,
 				    HNS3_SHAPER_LVL_PORT, &shaper_parameter);
 	if (ret) {
 		hns3_err(hw, "calculate shaper parameter failed: %d", ret);
@@ -366,12 +366,24 @@ hns3_dcb_port_shaper_cfg(struct hns3_hw *hw)
 	 * depends on the firmware version. But driver still needs to
 	 * calculate it and configure to firmware for better compatibility.
 	 */
-	shap_cfg_cmd->port_rate = rte_cpu_to_le_32(hw->mac.link_speed);
+	shap_cfg_cmd->port_rate = rte_cpu_to_le_32(speed);
 	hns3_set_bit(shap_cfg_cmd->flag, HNS3_TM_RATE_VLD_B, 1);
 
 	return hns3_cmd_send(hw, &desc, 1);
 }
 
+int
+hns3_port_shaper_update(struct hns3_hw *hw, uint32_t speed)
+{
+	int ret;
+
+	ret = hns3_dcb_port_shaper_cfg(hw, speed);
+	if (ret)
+		hns3_err(hw, "configure port shappering failed: ret = %d", ret);
+
+	return ret;
+}
+
 static int
 hns3_dcb_pg_shapping_cfg(struct hns3_hw *hw, enum hns3_shap_bucket bucket,
 			 uint8_t pg_id, uint32_t shapping_para, uint32_t rate)
@@ -961,7 +973,7 @@ hns3_dcb_shaper_cfg(struct hns3_hw *hw)
 {
 	int ret;
 
-	ret = hns3_dcb_port_shaper_cfg(hw);
+	ret = hns3_dcb_port_shaper_cfg(hw, hw->mac.link_speed);
 	if (ret) {
 		hns3_err(hw, "config port shaper failed: %d", ret);
 		return ret;
diff --git a/drivers/net/hns3/hns3_dcb.h b/drivers/net/hns3/hns3_dcb.h
index 8248434..0d25d3b 100644
--- a/drivers/net/hns3/hns3_dcb.h
+++ b/drivers/net/hns3/hns3_dcb.h
@@ -208,7 +208,7 @@ int hns3_queue_to_tc_mapping(struct hns3_hw *hw, uint16_t nb_rx_q,
 			     uint16_t nb_tx_q);
 
 int hns3_dcb_cfg_update(struct hns3_adapter *hns);
-int hns3_dcb_port_shaper_cfg(struct hns3_hw *hw);
+int hns3_port_shaper_update(struct hns3_hw *hw, uint32_t speed);
 int hns3_pg_shaper_rate_cfg(struct hns3_hw *hw, uint8_t pg_id, uint32_t rate);
 int hns3_pri_shaper_rate_cfg(struct hns3_hw *hw, uint8_t tc_no, uint32_t rate);
 uint8_t hns3_txq_mapped_tc_get(struct hns3_hw *hw, uint16_t txq_no);
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 34cd038..4320695 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -4384,7 +4384,6 @@ static int
 hns3_cfg_mac_speed_dup(struct hns3_hw *hw, uint32_t speed, uint8_t duplex)
 {
 	struct hns3_mac *mac = &hw->mac;
-	uint32_t cur_speed = mac->link_speed;
 	int ret;
 
 	duplex = hns3_check_speed_dup(duplex, speed);
@@ -4395,14 +4394,11 @@ hns3_cfg_mac_speed_dup(struct hns3_hw *hw, uint32_t speed, uint8_t duplex)
 	if (ret)
 		return ret;
 
-	mac->link_speed = speed;
-	ret = hns3_dcb_port_shaper_cfg(hw);
-	if (ret) {
-		hns3_err(hw, "failed to configure port shaper, ret = %d.", ret);
-		mac->link_speed = cur_speed;
+	ret = hns3_port_shaper_update(hw, speed);
+	if (ret)
 		return ret;
-	}
 
+	mac->link_speed = speed;
 	mac->link_duplex = duplex;
 
 	return 0;
-- 
2.7.4