net: hns3: fix GRO configuration error after reset

mainline inclusion
from mainline-v5.14
commit 3462207d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I46N6O
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3462207d2d684658d97499ca77c00c9ac7c87ea8

----------------------------------------------------------------------

The GRO configuration is enabled by default after reset. This
is incorrect and should be restored to the user-configured value.
So this restoration is added during reset initialization.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

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

@@ -1551,6 +1551,7 @@ static int hclge_configure(struct hclge_dev *hdev)
 	hdev->tm_info.hw_pfc_map = 0;
 	hdev->wanted_umv_size = cfg.umv_space;
 	hdev->tx_spare_buf_size = cfg.tx_spare_buf_size;
+	hdev->gro_en = true;
 	if (cfg.vlan_fliter_cap == HCLGE_VLAN_FLTR_CAN_MDF)
 		set_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps);
 
@@ -1619,7 +1620,7 @@ static int hclge_config_tso(struct hclge_dev *hdev, u16 tso_mss_min,
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
-static int hclge_config_gro(struct hclge_dev *hdev, bool en)
+static int hclge_config_gro(struct hclge_dev *hdev)
 {
 	struct hclge_cfg_gro_status_cmd *req;
 	struct hclge_desc desc;
@@ -1631,7 +1632,7 @@ static int hclge_config_gro(struct hclge_dev *hdev, bool en)
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_GRO_GENERIC_CONFIG, false);
 	req = (struct hclge_cfg_gro_status_cmd *)desc.data;
 
-	req->gro_en = en ? 1 : 0;
+	req->gro_en = hdev->gro_en ? 1 : 0;
 
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
@@ -11597,7 +11598,7 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 		goto err_mdiobus_unreg;
 	}
 
-	ret = hclge_config_gro(hdev, true);
+	ret = hclge_config_gro(hdev);
 	if (ret)
 		goto err_mdiobus_unreg;
 
@@ -11980,7 +11981,7 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
-	ret = hclge_config_gro(hdev, true);
+	ret = hclge_config_gro(hdev);
 	if (ret)
 		return ret;
 
@@ -12715,8 +12716,15 @@ static int hclge_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
+	bool gro_en_old = hdev->gro_en;
+	int ret;
+
+	hdev->gro_en = enable;
+	ret = hclge_config_gro(hdev);
+	if (ret)
+		hdev->gro_en = gro_en_old;
 
-	return hclge_config_gro(hdev, enable);
+	return ret;
 }
 
 static void hclge_sync_promisc_mode(struct hclge_dev *hdev)

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

@@ -929,6 +929,7 @@ struct hclge_dev {
 	unsigned long fd_bmap[BITS_TO_LONGS(MAX_FD_FILTER_NUM)];
 	enum HCLGE_FD_ACTIVE_RULE_TYPE fd_active_type;
 	u8 fd_en;
+	bool gro_en;
 
 	u16 wanted_umv_size;
 	/* max available unicast mac vlan space */

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c

@@ -2488,6 +2488,8 @@ static int hclgevf_configure(struct hclgevf_dev *hdev)
 {
 	int ret;
 
+	hdev->gro_en = true;
+
 	ret = hclgevf_get_basic_info(hdev);
 	if (ret)
 		return ret;
@@ -2550,7 +2552,7 @@ static int hclgevf_init_roce_base_info(struct hclgevf_dev *hdev)
 	return 0;
 }
 
-static int hclgevf_config_gro(struct hclgevf_dev *hdev, bool en)
+static int hclgevf_config_gro(struct hclgevf_dev *hdev)
 {
 	struct hclgevf_cfg_gro_status_cmd *req;
 	struct hclgevf_desc desc;
@@ -2563,7 +2565,7 @@ static int hclgevf_config_gro(struct hclgevf_dev *hdev, bool en)
 				     false);
 	req = (struct hclgevf_cfg_gro_status_cmd *)desc.data;
 
-	req->gro_en = en ? 1 : 0;
+	req->gro_en = hdev->gro_en ? 1 : 0;
 
 	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
@@ -3309,7 +3311,7 @@ static int hclgevf_reset_hdev(struct hclgevf_dev *hdev)
 		return ret;
 	}
 
-	ret = hclgevf_config_gro(hdev, true);
+	ret = hclgevf_config_gro(hdev);
 	if (ret)
 		return ret;
 
@@ -3394,7 +3396,7 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
 	if (ret)
 		goto err_config;
 
-	ret = hclgevf_config_gro(hdev, true);
+	ret = hclgevf_config_gro(hdev);
 	if (ret)
 		goto err_config;
 
@@ -3646,8 +3648,15 @@ void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
 static int hclgevf_gro_en(struct hnae3_handle *handle, bool enable)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	bool gro_en_old = hdev->gro_en;
+	int ret;
 
-	return hclgevf_config_gro(hdev, enable);
+	hdev->gro_en = enable;
+	ret = hclgevf_config_gro(hdev);
+	if (ret)
+		hdev->gro_en = gro_en_old;
+
+	return ret;
 }
 
 static void hclgevf_get_media_type(struct hnae3_handle *handle, u8 *media_type,

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

@@ -311,6 +311,8 @@ struct hclgevf_dev {
 	u16 *vector_status;
 	int *vector_irq;
 
+	bool gro_en;
+
 	unsigned long vlan_del_fail_bmap[BITS_TO_LONGS(VLAN_N_VID)];
 
 	struct hclgevf_mac_table_cfg mac_table;