netdev - [RFC PATCH net-next 4/4] net: hns3: add ethtool priv-flag for TX push

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Message-ID: <1627020969-32945-5-git-send-email-huangguangbin2@huawei.com>
Date:   Fri, 23 Jul 2021 14:16:09 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>,
        <catalin.marinas@....com>, <will@...nel.org>, <maz@...nel.org>,
        <mark.rutland@....com>, <dbrazdil@...gle.com>, <qperret@...gle.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <lipeng321@...wei.com>,
        <huangguangbin2@...wei.com>
Subject: [RFC PATCH net-next 4/4] net: hns3: add ethtool priv-flag for TX push

From: Huazhong Tan <tanhuazhong@...wei.com>

Add a control private flag in ethtool for enable/disable
TX push feature.

Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
Signed-off-by: Yufeng Mo <moyufeng@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  1 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    |  5 ++++-
 drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 19 ++++++++++++++++++-
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index f19336bbd88a..48d1f369f00e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -807,6 +807,7 @@ struct hnae3_roce_private_info {
 
 enum hnae3_pflag {
 	HNAE3_PFLAG_LIMIT_PROMISC,
+	HNAE3_PFLAG_PUSH_ENABLE,
 	HNAE3_PFLAG_MAX
 };
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 3fe4d9a165fa..a6434416006c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -5128,8 +5128,11 @@ static int hns3_client_init(struct hnae3_handle *handle)
 	if (hnae3_ae_dev_rxd_adv_layout_supported(ae_dev))
 		set_bit(HNS3_NIC_STATE_RXD_ADV_LAYOUT_ENABLE, &priv->state);
 
-	if (test_bit(HNAE3_DEV_SUPPORT_TX_PUSH_B, ae_dev->caps))
+	if (test_bit(HNAE3_DEV_SUPPORT_TX_PUSH_B, ae_dev->caps)) {
 		set_bit(HNS3_NIC_STATE_TX_PUSH_ENABLE, &priv->state);
+		handle->priv_flags |= BIT(HNAE3_PFLAG_PUSH_ENABLE);
+		set_bit(HNAE3_PFLAG_PUSH_ENABLE, &handle->supported_pflags);
+	}
 
 	set_bit(HNS3_NIC_STATE_INITED, &priv->state);
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 155a58e11089..0b2557d4441d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -423,8 +423,25 @@ static void hns3_update_limit_promisc_mode(struct net_device *netdev,
 	hns3_request_update_promisc_mode(handle);
 }
 
+static void hns3_update_state(struct net_device *netdev,
+			      enum hns3_nic_state state, bool enable)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+
+	if (enable)
+		set_bit(state, &priv->state);
+	else
+		clear_bit(state, &priv->state);
+}
+
+static void hns3_update_push_state(struct net_device *netdev, bool enable)
+{
+	hns3_update_state(netdev, HNS3_NIC_STATE_TX_PUSH_ENABLE, enable);
+}
+
 static const struct hns3_pflag_desc hns3_priv_flags[HNAE3_PFLAG_MAX] = {
-	{ "limit_promisc",	hns3_update_limit_promisc_mode }
+	{ "limit_promisc",	hns3_update_limit_promisc_mode },
+	{ "tx_push_enable",	hns3_update_push_state }
 };
 
 static int hns3_get_sset_count(struct net_device *netdev, int stringset)
-- 
2.8.1