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Message-Id: <20250611083559.14175-5-mengyuanlou@net-swift.com>
Date: Wed, 11 Jun 2025 16:35:51 +0800
From: Mengyuan Lou <mengyuanlou@...-swift.com>
To: netdev@...r.kernel.org
Cc: 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 04/12] net: wangxun: add txgbevf build
Add doc build infrastructure for txgbevf driver.
Implement the basic PCI driver loading and unloading interface.
Initialize the id_table which support 10/25/40G virtual
functions for Wangxun.
Ioremap the space of bar0 and bar4 which will be used.
Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
.../device_drivers/ethernet/index.rst | 1 +
.../ethernet/wangxun/txgbevf.rst | 16 ++
drivers/net/ethernet/wangxun/Kconfig | 18 ++
drivers/net/ethernet/wangxun/Makefile | 1 +
.../net/ethernet/wangxun/libwx/wx_vf_common.c | 38 +++++
.../net/ethernet/wangxun/libwx/wx_vf_common.h | 4 +
drivers/net/ethernet/wangxun/txgbevf/Makefile | 9 +
.../ethernet/wangxun/txgbevf/txgbevf_main.c | 154 ++++++++++++++++++
.../ethernet/wangxun/txgbevf/txgbevf_type.h | 20 +++
9 files changed, 261 insertions(+)
create mode 100644 Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst
create mode 100644 drivers/net/ethernet/wangxun/txgbevf/Makefile
create mode 100644 drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
create mode 100644 drivers/net/ethernet/wangxun/txgbevf/txgbevf_type.h
diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
index 139b4c75a191..e93453410772 100644
--- a/Documentation/networking/device_drivers/ethernet/index.rst
+++ b/Documentation/networking/device_drivers/ethernet/index.rst
@@ -58,6 +58,7 @@ Contents:
ti/tlan
ti/icssg_prueth
wangxun/txgbe
+ wangxun/txgbevf
wangxun/ngbe
.. only:: subproject and html
diff --git a/Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst b/Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst
new file mode 100644
index 000000000000..b2f759b7b518
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst
@@ -0,0 +1,16 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+===========================================================================
+Linux Base Virtual Function Driver for Wangxun(R) 10/25/40 Gigabit Ethernet
+===========================================================================
+
+WangXun 10/25/40 Gigabit Virtual Function Linux driver.
+Copyright(c) 2015 - 2025 Beijing WangXun Technology Co., Ltd.
+
+Support
+=======
+For general information, go to the website at:
+https://www.net-swift.com
+
+If you got any problem, contact Wangxun support team via nic-support@...-swift.com
+and Cc: netdev.
diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig
index e5fc942c28cc..a6ec73e4f300 100644
--- a/drivers/net/ethernet/wangxun/Kconfig
+++ b/drivers/net/ethernet/wangxun/Kconfig
@@ -64,4 +64,22 @@ config TXGBE
To compile this driver as a module, choose M here. The module
will be called txgbe.
+config TXGBEVF
+ tristate "Wangxun(R) 10/25/40G Virtual Function Ethernet support"
+ depends on PCI
+ depends on PCI_MSI
+ select LIBWX
+ select PHYLINK
+ help
+ This driver supports virtual functions for SP1000A, WX1820AL,
+ WX5XXX, WX5XXXAL.
+
+ This driver was formerly named txgbevf.
+
+ More specific information on configuring the driver is in
+ <file:Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst>.
+
+ To compile this driver as a module, choose M here. MSI-X interrupt
+ support is required for this driver to work correctly.
+
endif # NET_VENDOR_WANGXUN
diff --git a/drivers/net/ethernet/wangxun/Makefile b/drivers/net/ethernet/wangxun/Makefile
index ca19311dbe38..71371d47a6ee 100644
--- a/drivers/net/ethernet/wangxun/Makefile
+++ b/drivers/net/ethernet/wangxun/Makefile
@@ -5,4 +5,5 @@
obj-$(CONFIG_LIBWX) += libwx/
obj-$(CONFIG_TXGBE) += txgbe/
+obj-$(CONFIG_TXGBEVF) += txgbevf/
obj-$(CONFIG_NGBE) += ngbe/
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
index 861adf97e801..6619a7abd1d8 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
@@ -11,6 +11,44 @@
#include "wx_vf_lib.h"
#include "wx_vf_common.h"
+int wxvf_suspend(struct device *dev_d)
+{
+ struct pci_dev *pdev = to_pci_dev(dev_d);
+ struct wx *wx = pci_get_drvdata(pdev);
+
+ netif_device_detach(wx->netdev);
+ pci_disable_device(pdev);
+
+ return 0;
+}
+EXPORT_SYMBOL(wxvf_suspend);
+
+void wxvf_shutdown(struct pci_dev *pdev)
+{
+ wxvf_suspend(&pdev->dev);
+}
+EXPORT_SYMBOL(wxvf_shutdown);
+
+int wxvf_resume(struct device *dev_d)
+{
+ struct pci_dev *pdev = to_pci_dev(dev_d);
+ struct wx *wx = pci_get_drvdata(pdev);
+
+ pci_set_master(pdev);
+ netif_device_attach(wx->netdev);
+
+ return 0;
+}
+EXPORT_SYMBOL(wxvf_resume);
+
+void wxvf_remove(struct pci_dev *pdev)
+{
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+ pci_disable_device(pdev);
+}
+EXPORT_SYMBOL(wxvf_remove);
+
static irqreturn_t wx_msix_misc_vf(int __always_unused irq, void *data)
{
struct wx *wx = data;
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.h b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.h
index 9bee9de86cb2..f3b31f33407b 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_vf_common.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_vf_common.h
@@ -4,6 +4,10 @@
#ifndef _WX_VF_COMMON_H_
#define _WX_VF_COMMON_H_
+int wxvf_suspend(struct device *dev_d);
+void wxvf_shutdown(struct pci_dev *pdev);
+int wxvf_resume(struct device *dev_d);
+void wxvf_remove(struct pci_dev *pdev);
int wx_request_msix_irqs_vf(struct wx *wx);
void wx_negotiate_api_vf(struct wx *wx);
void wx_reset_vf(struct wx *wx);
diff --git a/drivers/net/ethernet/wangxun/txgbevf/Makefile b/drivers/net/ethernet/wangxun/txgbevf/Makefile
new file mode 100644
index 000000000000..4c7e6de04424
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/txgbevf/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) 10/25/40GbE virtual functions driver
+#
+
+obj-$(CONFIG_TXGBE) += txgbevf.o
+
+txgbevf-objs := txgbevf_main.o
diff --git a/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
new file mode 100644
index 000000000000..9e8ddec36913
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_vf_common.h"
+#include "txgbevf_type.h"
+
+/* txgbevf_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ * Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id txgbevf_pci_tbl[] = {
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_SP1000), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_WX1820), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML500F), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML510F), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML5024), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML5124), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML503F), 0},
+ { PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML513F), 0},
+ /* required last entry */
+ { .device = 0 }
+};
+
+/**
+ * txgbevf_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in txgbevf_pci_tbl
+ *
+ * Return: return 0 on success, negative on failure
+ *
+ * txgbevf_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int txgbevf_probe(struct pci_dev *pdev,
+ const struct pci_device_id __always_unused *ent)
+{
+ struct net_device *netdev;
+ struct wx *wx = NULL;
+ int err;
+
+ err = pci_enable_device_mem(pdev);
+ if (err)
+ return err;
+
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_pci_disable_dev;
+ }
+
+ err = pci_request_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM),
+ dev_driver_string(&pdev->dev));
+ if (err) {
+ dev_err(&pdev->dev,
+ "pci_request_selected_regions failed 0x%x\n", err);
+ goto err_pci_disable_dev;
+ }
+
+ pci_set_master(pdev);
+
+ netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+ sizeof(struct wx),
+ TXGBEVF_MAX_TX_QUEUES,
+ TXGBEVF_MAX_RX_QUEUES);
+ if (!netdev) {
+ err = -ENOMEM;
+ goto err_pci_release_regions;
+ }
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ wx = netdev_priv(netdev);
+ wx->netdev = netdev;
+ wx->pdev = pdev;
+
+ wx->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+ NETIF_MSG_PROBE | NETIF_MSG_LINK);
+ wx->hw_addr = devm_ioremap(&pdev->dev,
+ pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (!wx->hw_addr) {
+ err = -EIO;
+ goto err_pci_release_regions;
+ }
+
+ wx->b4_addr = devm_ioremap(&pdev->dev,
+ pci_resource_start(pdev, 4),
+ pci_resource_len(pdev, 4));
+ if (!wx->b4_addr) {
+ err = -EIO;
+ goto err_pci_release_regions;
+ }
+
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ pci_set_drvdata(pdev, wx);
+
+ return 0;
+
+err_pci_release_regions:
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+ pci_disable_device(pdev);
+ return err;
+}
+
+/**
+ * txgbevf_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * txgbevf_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device. The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void txgbevf_remove(struct pci_dev *pdev)
+{
+ wxvf_remove(pdev);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(txgbevf_pm_ops, wxvf_suspend, wxvf_resume);
+
+static struct pci_driver txgbevf_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = txgbevf_pci_tbl,
+ .probe = txgbevf_probe,
+ .remove = txgbevf_remove,
+ .shutdown = wxvf_shutdown,
+ /* Power Management Hooks */
+ .driver.pm = pm_sleep_ptr(&txgbevf_pm_ops)
+};
+
+module_pci_driver(txgbevf_driver);
+
+MODULE_DEVICE_TABLE(pci, txgbevf_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@...stnetic.com>");
+MODULE_DESCRIPTION("WangXun(R) 10/25/40 Gigabit Virtual Function Network Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/wangxun/txgbevf/txgbevf_type.h b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_type.h
new file mode 100644
index 000000000000..2ba9d0cb63d5
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/txgbevf/txgbevf_type.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBEVF_TYPE_H_
+#define _TXGBEVF_TYPE_H_
+
+/* Device IDs */
+#define TXGBEVF_DEV_ID_SP1000 0x1000
+#define TXGBEVF_DEV_ID_WX1820 0x2000
+#define TXGBEVF_DEV_ID_AML500F 0x500F
+#define TXGBEVF_DEV_ID_AML510F 0x510F
+#define TXGBEVF_DEV_ID_AML5024 0x5024
+#define TXGBEVF_DEV_ID_AML5124 0x5124
+#define TXGBEVF_DEV_ID_AML503F 0x503f
+#define TXGBEVF_DEV_ID_AML513F 0x513f
+
+#define TXGBEVF_MAX_RX_QUEUES 4
+#define TXGBEVF_MAX_TX_QUEUES 4
+
+#endif /* _TXGBEVF_TYPE_H_ */
--
2.30.1
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