netdev - [PATCH net-next v2 1/3] net: wangxun: change the default ITR setting

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Message-Id: <20250721080103.30964-2-jiawenwu@trustnetic.com>
Date: Mon, 21 Jul 2025 16:01:01 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>
Cc: Mengyuan Lou <mengyuanlou@...-swift.com>,
	Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next v2 1/3] net: wangxun: change the default ITR setting

For various types of devices, change their default ITR settings
according to their hardware design.

Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
 .../net/ethernet/wangxun/libwx/wx_ethtool.c   | 24 +++++++------------
 drivers/net/ethernet/wangxun/ngbe/ngbe_main.c |  5 ++--
 2 files changed, 10 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
index c12a4cb951f6..85fb23b238d1 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c
@@ -340,13 +340,19 @@ int wx_set_coalesce(struct net_device *netdev,
 	switch (wx->mac.type) {
 	case wx_mac_sp:
 		max_eitr = WX_SP_MAX_EITR;
+		rx_itr_param = WX_20K_ITR;
+		tx_itr_param = WX_12K_ITR;
 		break;
 	case wx_mac_aml:
 	case wx_mac_aml40:
 		max_eitr = WX_AML_MAX_EITR;
+		rx_itr_param = WX_20K_ITR;
+		tx_itr_param = WX_12K_ITR;
 		break;
 	default:
 		max_eitr = WX_EM_MAX_EITR;
+		rx_itr_param = WX_7K_ITR;
+		tx_itr_param = WX_7K_ITR;
 		break;
 	}
 
@@ -359,9 +365,7 @@ int wx_set_coalesce(struct net_device *netdev,
 	else
 		wx->rx_itr_setting = ec->rx_coalesce_usecs;
 
-	if (wx->rx_itr_setting == 1)
-		rx_itr_param = WX_20K_ITR;
-	else
+	if (wx->rx_itr_setting != 1)
 		rx_itr_param = wx->rx_itr_setting;
 
 	if (ec->tx_coalesce_usecs > 1)
@@ -369,20 +373,8 @@ int wx_set_coalesce(struct net_device *netdev,
 	else
 		wx->tx_itr_setting = ec->tx_coalesce_usecs;
 
-	if (wx->tx_itr_setting == 1) {
-		switch (wx->mac.type) {
-		case wx_mac_sp:
-		case wx_mac_aml:
-		case wx_mac_aml40:
-			tx_itr_param = WX_12K_ITR;
-			break;
-		default:
-			tx_itr_param = WX_20K_ITR;
-			break;
-		}
-	} else {
+	if (wx->tx_itr_setting != 1)
 		tx_itr_param = wx->tx_itr_setting;
-	}
 
 	/* mixed Rx/Tx */
 	if (wx->q_vector[0]->tx.count && wx->q_vector[0]->rx.count)
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index e0fc897b0a58..3fff73ae44af 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -119,9 +119,8 @@ static int ngbe_sw_init(struct wx *wx)
 						   num_online_cpus());
 	wx->rss_enabled = true;
 
-	/* enable itr by default in dynamic mode */
-	wx->rx_itr_setting = 1;
-	wx->tx_itr_setting = 1;
+	wx->rx_itr_setting = WX_7K_ITR;
+	wx->tx_itr_setting = WX_7K_ITR;
 
 	/* set default ring sizes */
 	wx->tx_ring_count = NGBE_DEFAULT_TXD;
-- 
2.48.1