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Date: Fri, 26 Aug 2022 11:46:09 +0800
From: Mengyuan Lou <mengyuanlou@...-swift.com>
To: netdev@...r.kernel.org
Cc: jiawenwu@...stnetic.com, Mengyuan Lou <mengyuanlou@...-swift.com>,
Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next v3 1] net: ngbe: Add build support for ngbe
Add build options and guidance doc.
Initialize pci device access for Wangxun Gigabit Ethernet devices.
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Mengyuan Lou <mengyuanlou@...-swift.com>
---
Change log:
v3:
Andrew Lunn: https://lore.kernel.org/netdev/YwfltvdQaHUNKdAh@lunn.ch/
v2: address comments:
Jakub Kicinski: The length of the '=====' lines needs to be the same as the length of the text.
.../device_drivers/ethernet/index.rst | 1 +
.../device_drivers/ethernet/wangxun/ngbe.rst | 14 ++
MAINTAINERS | 4 +-
drivers/net/ethernet/wangxun/Kconfig | 13 ++
drivers/net/ethernet/wangxun/Makefile | 1 +
drivers/net/ethernet/wangxun/ngbe/Makefile | 9 +
drivers/net/ethernet/wangxun/ngbe/ngbe.h | 24 +++
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 170 ++++++++++++++++++
drivers/net/ethernet/wangxun/ngbe/ngbe_type.h | 50 ++++++
9 files changed, 285 insertions(+), 1 deletion(-)
create mode 100644 Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst
create mode 100644 drivers/net/ethernet/wangxun/ngbe/Makefile
create mode 100644 drivers/net/ethernet/wangxun/ngbe/ngbe.h
create mode 100644 drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
create mode 100644 drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
index 7f1777173abb..5196905582c5 100644
--- a/Documentation/networking/device_drivers/ethernet/index.rst
+++ b/Documentation/networking/device_drivers/ethernet/index.rst
@@ -52,6 +52,7 @@ Contents:
ti/tlan
toshiba/spider_net
wangxun/txgbe
+ wangxun/ngbe
.. only:: subproject and html
diff --git a/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst b/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst
new file mode 100644
index 000000000000..43a02f9943e1
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst
@@ -0,0 +1,14 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================================================
+Linux Base Driver for WangXun(R) Gigabit PCI Express Adapters
+=============================================================
+
+WangXun Gigabit Linux driver.
+Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+
+Support
+=======
+ If you have problems with the software or hardware, please contact our
+ customer support team via email at nic-support@...-swift.com or check our website
+ at https://www.net-swift.com
diff --git a/MAINTAINERS b/MAINTAINERS
index f2d64020399b..4e7ced47a255 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21834,9 +21834,11 @@ F: drivers/input/tablet/wacom_serial4.c
WANGXUN ETHERNET DRIVER
M: Jiawen Wu <jiawenwu@...stnetic.com>
+M: Mengyuan Lou <mengyuanlou@...-swift.com>
+W: https://www.net-swift.com
L: netdev@...r.kernel.org
S: Maintained
-F: Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst
+F: Documentation/networking/device_drivers/ethernet/wangxun/*
F: drivers/net/ethernet/wangxun/
WATCHDOG DEVICE DRIVERS
diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig
index b4a4fa0a58f8..f5d43d8c9629 100644
--- a/drivers/net/ethernet/wangxun/Kconfig
+++ b/drivers/net/ethernet/wangxun/Kconfig
@@ -16,6 +16,19 @@ config NET_VENDOR_WANGXUN
if NET_VENDOR_WANGXUN
+config NGBE
+ tristate "Wangxun(R) GbE PCI Express adapters support"
+ depends on PCI
+ help
+ This driver supports Wangxun(R) GbE PCI Express family of
+ adapters.
+
+ More specific information on configuring the driver is in
+ <file:Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst>.
+
+ To compile this driver as a module, choose M here. The module
+ will be called ngbe.
+
config TXGBE
tristate "Wangxun(R) 10GbE PCI Express adapters support"
depends on PCI
diff --git a/drivers/net/ethernet/wangxun/Makefile b/drivers/net/ethernet/wangxun/Makefile
index c34db1bead25..ac3fb06b233c 100644
--- a/drivers/net/ethernet/wangxun/Makefile
+++ b/drivers/net/ethernet/wangxun/Makefile
@@ -4,3 +4,4 @@
#
obj-$(CONFIG_TXGBE) += txgbe/
+obj-$(CONFIG_NGBE) += ngbe/
diff --git a/drivers/net/ethernet/wangxun/ngbe/Makefile b/drivers/net/ethernet/wangxun/ngbe/Makefile
new file mode 100644
index 000000000000..0baf75907496
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) GbE PCI Express ethernet driver
+#
+
+obj-$(CONFIG_NGBE) += ngbe.o
+
+ngbe-objs := ngbe_main.o
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe.h b/drivers/net/ethernet/wangxun/ngbe/ngbe.h
new file mode 100644
index 000000000000..f5fa6e5238cc
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBE_H_
+#define _NGBE_H_
+
+#include "ngbe_type.h"
+
+#define NGBE_MAX_FDIR_INDICES 7
+
+#define NGBE_MAX_RX_QUEUES (NGBE_MAX_FDIR_INDICES + 1)
+#define NGBE_MAX_TX_QUEUES (NGBE_MAX_FDIR_INDICES + 1)
+
+/* board specific private data structure */
+struct ngbe_adapter {
+ u8 __iomem *io_addr; /* Mainly for iounmap use */
+ /* OS defined structs */
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+};
+
+extern char ngbe_driver_name[];
+
+#endif /* _NGBE_H_ */
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
new file mode 100644
index 000000000000..7674cb6e5700
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 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/aer.h>
+#include <linux/etherdevice.h>
+
+#include "ngbe.h"
+char ngbe_driver_name[] = "ngbe";
+
+/* ngbe_pci_tbl - PCI Device ID Table
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ * Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id ngbe_pci_tbl[] = {
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL_W), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2S), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4S), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2S), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4S), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860LC), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1), 0},
+ { PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1L), 0},
+ /* required last entry */
+ { .device = 0 }
+};
+
+static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
+{
+ struct ngbe_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+
+ netif_device_detach(netdev);
+
+ pci_disable_device(pdev);
+}
+
+static void ngbe_shutdown(struct pci_dev *pdev)
+{
+ bool wake;
+
+ ngbe_dev_shutdown(pdev, &wake);
+
+ if (system_state == SYSTEM_POWER_OFF) {
+ pci_wake_from_d3(pdev, wake);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
+}
+
+/**
+ * ngbe_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ngbe_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * ngbe_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 ngbe_probe(struct pci_dev *pdev,
+ const struct pci_device_id __always_unused *ent)
+{
+ struct ngbe_adapter *adapter = NULL;
+ struct net_device *netdev;
+ 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),
+ ngbe_driver_name);
+ if (err) {
+ dev_err(&pdev->dev,
+ "pci_request_selected_regions failed %d\n", err);
+ goto err_pci_disable_dev;
+ }
+
+ pci_enable_pcie_error_reporting(pdev);
+ pci_set_master(pdev);
+
+ netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+ sizeof(struct ngbe_adapter),
+ NGBE_MAX_TX_QUEUES,
+ NGBE_MAX_RX_QUEUES);
+ if (!netdev) {
+ err = -ENOMEM;
+ goto err_pci_release_regions;
+ }
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ adapter = netdev_priv(netdev);
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+
+ adapter->io_addr = devm_ioremap(&pdev->dev,
+ pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (!adapter->io_addr) {
+ err = -EIO;
+ goto err_pci_release_regions;
+ }
+
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ pci_set_drvdata(pdev, adapter);
+
+ return 0;
+
+err_pci_release_regions:
+ pci_disable_pcie_error_reporting(pdev);
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+ pci_disable_device(pdev);
+ return err;
+}
+
+/**
+ * ngbe_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * ngbe_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 ngbe_remove(struct pci_dev *pdev)
+{
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
+
+ pci_disable_pcie_error_reporting(pdev);
+
+ pci_disable_device(pdev);
+}
+
+static struct pci_driver ngbe_driver = {
+ .name = ngbe_driver_name,
+ .id_table = ngbe_pci_tbl,
+ .probe = ngbe_probe,
+ .remove = ngbe_remove,
+ .shutdown = ngbe_shutdown,
+};
+
+module_pci_driver(ngbe_driver);
+
+MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@...-swift.com>");
+MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
new file mode 100644
index 000000000000..26e776c3539a
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBE_TYPE_H_
+#define _NGBE_TYPE_H_
+
+#include <linux/types.h>
+#include <linux/netdevice.h>
+
+/************ NGBE_register.h ************/
+/* Vendor ID */
+#ifndef PCI_VENDOR_ID_WANGXUN
+#define PCI_VENDOR_ID_WANGXUN 0x8088
+#endif
+
+/* Device IDs */
+#define NGBE_DEV_ID_EM_WX1860AL_W 0x0100
+#define NGBE_DEV_ID_EM_WX1860A2 0x0101
+#define NGBE_DEV_ID_EM_WX1860A2S 0x0102
+#define NGBE_DEV_ID_EM_WX1860A4 0x0103
+#define NGBE_DEV_ID_EM_WX1860A4S 0x0104
+#define NGBE_DEV_ID_EM_WX1860AL2 0x0105
+#define NGBE_DEV_ID_EM_WX1860AL2S 0x0106
+#define NGBE_DEV_ID_EM_WX1860AL4 0x0107
+#define NGBE_DEV_ID_EM_WX1860AL4S 0x0108
+#define NGBE_DEV_ID_EM_WX1860LC 0x0109
+#define NGBE_DEV_ID_EM_WX1860A1 0x010a
+#define NGBE_DEV_ID_EM_WX1860A1L 0x010b
+
+/* Subsystem ID */
+#define NGBE_SUBID_M88E1512_SFP 0x0003
+#define NGBE_SUBID_OCP_CARD 0x0040
+#define NGBE_SUBID_LY_M88E1512_SFP 0x0050
+#define NGBE_SUBID_M88E1512_RJ45 0x0051
+#define NGBE_SUBID_M88E1512_MIX 0x0052
+#define NGBE_SUBID_YT8521S_SFP 0x0060
+#define NGBE_SUBID_INTERNAL_YT8521S_SFP 0x0061
+#define NGBE_SUBID_YT8521S_SFP_GPIO 0x0062
+#define NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO 0x0064
+#define NGBE_SUBID_LY_YT8521S_SFP 0x0070
+#define NGBE_SUBID_RGMII_FPGA 0x0080
+
+#define NGBE_OEM_MASK 0x00FF
+
+#define NGBE_NCSI_SUP 0x8000
+#define NGBE_NCSI_MASK 0x8000
+#define NGBE_WOL_SUP 0x4000
+#define NGBE_WOL_MASK 0x4000
+
+#endif /* _NGBE_TYPE_H_ */
--
2.25.1
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