netdev - [PATCH net-next v2 07/12] net: txgbevf: Support Rx and Tx process path

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Message-Id: <20250625102058.19898-8-mengyuanlou@net-swift.com>
Date: Wed, 25 Jun 2025 18:20:53 +0800
From: Mengyuan Lou <mengyuanlou@...-swift.com>
To: netdev@...r.kernel.org
Cc: michal.swiatkowski@...ux.intel.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org,
	andrew+netdev@...n.ch,
	duanqiangwen@...-swift.com,
	linglingzhang@...stnetic.com,
	jiawenwu@...-swift.com,
	Mengyuan Lou <mengyuanlou@...-swift.com>
Subject: [PATCH net-next v2 07/12] net: txgbevf: Support Rx and Tx process path

Improve the configuration of Rx and Tx ring.
Setup and alloc resources.
Configure Rx and Tx unit on hardware.
Add .ndo_start_xmit support and start all queues.

Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
 .../net/ethernet/wangxun/libwx/wx_vf_common.c | 25 ++++++++++++++++++-
 .../ethernet/wangxun/txgbevf/txgbevf_main.c   |  2 ++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
index 4224578b7974..60c9e1463efc 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
@@ -251,10 +251,14 @@ static void wxvf_irq_enable(struct wx *wx)
 static void wxvf_up_complete(struct wx *wx)
 {
 	wx_configure_msix_vf(wx);
+	smp_mb__before_atomic();
+	wx_napi_enable_all(wx);
 
 	/* clear any pending interrupts, may auto mask */
 	wr32(wx, WX_VXICR, U32_MAX);
 	wxvf_irq_enable(wx);
+	/* enable transmits */
+	netif_tx_start_all_queues(wx->netdev);
 }
 
 int wxvf_open(struct net_device *netdev)
@@ -262,13 +266,31 @@ int wxvf_open(struct net_device *netdev)
 	struct wx *wx = netdev_priv(netdev);
 	int err;
 
-	err = wx_request_msix_irqs_vf(wx);
+	err = wx_setup_resources(wx);
 	if (err)
 		goto err_reset;
+	wx_configure_vf(wx);
+
+	err = wx_request_msix_irqs_vf(wx);
+	if (err)
+		goto err_free_resources;
+
+	/* Notify the stack of the actual queue counts. */
+	err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+	if (err)
+		goto err_free_irq;
+
+	err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+	if (err)
+		goto err_free_irq;
 
 	wxvf_up_complete(wx);
 
 	return 0;
+err_free_irq:
+	wx_free_irq(wx);
+err_free_resources:
+	wx_free_resources(wx);
 err_reset:
 	wx_reset_vf(wx);
 	return err;
@@ -294,6 +316,7 @@ int wxvf_close(struct net_device *netdev)
 
 	wxvf_down(wx);
 	wx_free_irq(wx);
+	wx_free_resources(wx);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
index a61e4a0781cf..57e67804b8b7 100644
--- a/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
+++ b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
@@ -40,6 +40,7 @@ static const struct pci_device_id txgbevf_pci_tbl[] = {
 static const struct net_device_ops txgbevf_netdev_ops = {
 	.ndo_open               = wxvf_open,
 	.ndo_stop               = wxvf_close,
+	.ndo_start_xmit         = wx_xmit_frame,
 	.ndo_validate_addr      = eth_validate_addr,
 	.ndo_set_mac_address    = wx_set_mac_vf,
 };
@@ -258,6 +259,7 @@ static int txgbevf_probe(struct pci_dev *pdev,
 		goto err_register;
 
 	pci_set_drvdata(pdev, wx);
+	netif_tx_stop_all_queues(netdev);
 
 	return 0;
 
-- 
2.30.1