net: txgbevf: init interrupts and request irqs

Add irq alloc flow functions for vf.
Alloc pcie msix irqs for drivers and request_irq for tx/rx rings
and misc other events.
If the application is successful, config vertors for interrupts.
Enable interrupts mask in wxvf_irq_enable.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Link: https://patch.msgid.link/20250704094923.652-7-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 37 insertions, 3 deletions

diff --git a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
index ed5daeec598a..7442b195425f 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
@@ -17,6 +17,7 @@ int wxvf_suspend(struct device *dev_d)
 	struct wx *wx = pci_get_drvdata(pdev);
 
 	netif_device_detach(wx->netdev);
+	wx_clear_interrupt_scheme(wx);
 	pci_disable_device(pdev);
 
 	return 0;
@@ -35,6 +36,7 @@ int wxvf_resume(struct device *dev_d)
 	struct wx *wx = pci_get_drvdata(pdev);
 
 	pci_set_master(pdev);
+	wx_init_interrupt_scheme(wx);
 	netif_device_attach(wx->netdev);
 
 	return 0;
@@ -51,6 +53,7 @@ void wxvf_remove(struct pci_dev *pdev)
 	kfree(wx->vfinfo);
 	kfree(wx->rss_key);
 	kfree(wx->mac_table);
+	wx_clear_interrupt_scheme(wx);
 	pci_release_selected_regions(pdev,
 				     pci_select_bars(pdev, IORESOURCE_MEM));
 	pci_disable_device(pdev);
@@ -93,9 +96,8 @@ int wx_request_msix_irqs_vf(struct wx *wx)
 		}
 	}
 
-	err = request_threaded_irq(wx->msix_entry->vector, NULL,
-				   wx_msix_misc_vf, IRQF_ONESHOT,
-				   netdev->name, wx);
+	err = request_threaded_irq(wx->msix_entry->vector, wx_msix_misc_vf,
+				   NULL, IRQF_ONESHOT, netdev->name, wx);
 	if (err) {
 		wx_err(wx, "request_irq for msix_other failed: %d\n", err);
 		goto free_queue_irqs;
@@ -241,9 +243,35 @@ int wx_set_mac_vf(struct net_device *netdev, void *p)
 }
 EXPORT_SYMBOL(wx_set_mac_vf);
 
+static void wxvf_irq_enable(struct wx *wx)
+{
+	wr32(wx, WX_VXIMC, wx->eims_enable_mask);
+}
+
+static void wxvf_up_complete(struct wx *wx)
+{
+	wx_configure_msix_vf(wx);
+
+	/* clear any pending interrupts, may auto mask */
+	wr32(wx, WX_VXICR, U32_MAX);
+	wxvf_irq_enable(wx);
+}
+
 int wxvf_open(struct net_device *netdev)
 {
+	struct wx *wx = netdev_priv(netdev);
+	int err;
+
+	err = wx_request_msix_irqs_vf(wx);
+	if (err)
+		goto err_reset;
+
+	wxvf_up_complete(wx);
+
 	return 0;
+err_reset:
+	wx_reset_vf(wx);
+	return err;
 }
 EXPORT_SYMBOL(wxvf_open);
 
@@ -251,8 +279,13 @@ static void wxvf_down(struct wx *wx)
 {
 	struct net_device *netdev = wx->netdev;
 
+	netif_tx_stop_all_queues(netdev);
 	netif_tx_disable(netdev);
+	wx_napi_disable_all(wx);
 	wx_reset_vf(wx);
+
+	wx_clean_all_tx_rings(wx);
+	wx_clean_all_rx_rings(wx);
 }
 
 int wxvf_close(struct net_device *netdev)
@@ -260,6 +293,7 @@ int wxvf_close(struct net_device *netdev)
 	struct wx *wx = netdev_priv(netdev);
 
 	wxvf_down(wx);
+	wx_free_irq(wx);
 
 	return 0;
 }