linux-kernel - [PATCH net-next 4/4] net: hns3: add judge fd ability for sync and clear process of flow director

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Date:   Fri, 16 Sep 2022 10:38:03 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>
CC:     <edumazet@...gle.com>, <pabeni@...hat.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <huangguangbin2@...wei.com>, <lipeng321@...wei.com>,
        <lanhao@...wei.com>, <shenjian15@...wei.com>
Subject: [PATCH net-next 4/4] net: hns3: add judge fd ability for sync and clear process of flow director

Currently, driver will always clear user defined field of flow director
in uninit process and sync flow director table in periodic task. However,
if hardware does not support flow director driver should not do those
processes, so add fd ability judgement.

The fd ability judgement in function hclge_clear_fd_rules_in_list() is
redundant, so delete it.

Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 66436801fb8e..7b25d8f89427 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6628,9 +6628,6 @@ static void hclge_clear_fd_rules_in_list(struct hclge_dev *hdev,
 	struct hlist_node *node;
 	u16 location;
 
-	if (!hnae3_ae_dev_fd_supported(hdev->ae_dev))
-		return;
-
 	spin_lock_bh(&hdev->fd_rule_lock);
 
 	for_each_set_bit(location, hdev->fd_bmap,
@@ -6655,6 +6652,9 @@ static void hclge_clear_fd_rules_in_list(struct hclge_dev *hdev,
 
 static void hclge_del_all_fd_entries(struct hclge_dev *hdev)
 {
+	if (!hnae3_ae_dev_fd_supported(hdev->ae_dev))
+		return;
+
 	hclge_clear_fd_rules_in_list(hdev, true);
 	hclge_fd_disable_user_def(hdev);
 }
@@ -7488,6 +7488,9 @@ static void hclge_sync_fd_list(struct hclge_dev *hdev, struct hlist_head *hlist)
 
 static void hclge_sync_fd_table(struct hclge_dev *hdev)
 {
+	if (!hnae3_ae_dev_fd_supported(hdev->ae_dev))
+		return;
+
 	if (test_and_clear_bit(HCLGE_STATE_FD_CLEAR_ALL, &hdev->state)) {
 		bool clear_list = hdev->fd_active_type == HCLGE_FD_ARFS_ACTIVE;
 
-- 
2.33.0