[PATCH v24 net-next 01/11] net/nebula-matrix: add minimum nbl build framework

@@ -47,6 +47,7 @@ Contents:
    meta/fbnic
    microsoft/netvsc
    mucse/rnpgbe
+   nebula-matrix/nbl
    netronome/nfp
    pensando/ionic
    pensando/ionic_rdma

@@ -0,0 +1,28 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================================================================
+Linux Base Driver for Nebula-matrix m18110-NIC/m18000-NIC family
+================================================================
+
+Overview:
+=========
+The m18110-NIC/m18000-NIC is a series of network interface cards for the Data
+Center Area.
+
+The driver supports link-speed 100GbE/25GE/10GE.
+
+m18110-NIC/m18000-NIC devices support MSI-X interrupt vector for each Tx/Rx
+queue and interrupt moderation.
+
+m18110-NIC/m18000-NIC devices support also various offload features such as
+checksum offload, Receive-Side Scaling(RSS).
+
+Support
+=======
+
+For more information about m18110-NIC/m18000-NIC, please visit the following URL:
+https://www.nebula-matrix.com/snic_s1000_en
+
+If an issue is identified with the released source code on the supported kernel
+with a supported adapter, email the specific information related to the issue to
+open@nebula-matrix.com.

@@ -18597,6 +18597,16 @@ F:	Documentation/devicetree/bindings/hwmon/nuvoton,nct7363.yaml
 F:	Documentation/hwmon/nct7363.rst
 F:	drivers/hwmon/nct7363.c
 
+NEBULA-MATRIX ETHERNET DRIVER (nebula-matrix)
+M:	Illusion Wang <illusion.wang@nebula-matrix.com>
+M:	Dimon Zhao <dimon.zhao@nebula-matrix.com>
+M:	Alvin Wang <alvin.wang@nebula-matrix.com>
+M:	Sam Chen <sam.chen@nebula-matrix.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	Documentation/networking/device_drivers/ethernet/nebula-matrix/
+F:	drivers/net/ethernet/nebula-matrix/
+
 NETCONSOLE
 M:	Breno Leitao <leitao@debian.org>
 S:	Maintained

@@ -130,6 +130,7 @@ config FEALNX
 
 source "drivers/net/ethernet/ni/Kconfig"
 source "drivers/net/ethernet/natsemi/Kconfig"
+source "drivers/net/ethernet/nebula-matrix/Kconfig"
 source "drivers/net/ethernet/netronome/Kconfig"
 source "drivers/net/ethernet/8390/Kconfig"
 source "drivers/net/ethernet/nvidia/Kconfig"

@@ -67,6 +67,7 @@ obj-$(CONFIG_NET_VENDOR_MUCSE) += mucse/
 obj-$(CONFIG_NET_VENDOR_MYRI) += myricom/
 obj-$(CONFIG_FEALNX) += fealnx.o
 obj-$(CONFIG_NET_VENDOR_NATSEMI) += natsemi/
+obj-$(CONFIG_NET_VENDOR_NEBULA_MATRIX) += nebula-matrix/
 obj-$(CONFIG_NET_VENDOR_NETRONOME) += netronome/
 obj-$(CONFIG_NET_VENDOR_NI) += ni/
 obj-$(CONFIG_NET_VENDOR_NVIDIA) += nvidia/

@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Nebula-matrix network device configuration
+#
+
+config NET_VENDOR_NEBULA_MATRIX
+	bool "Nebula-matrix devices"
+	default y
+	help
+	  If you have a network (Ethernet) card belonging to this class, say Y.
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Nebula-matrix cards. If you say Y, you will be asked
+	  for your specific card in the following questions.
+
+if NET_VENDOR_NEBULA_MATRIX
+
+config NBL
+	tristate "Nebula-matrix Ethernet Controller m18110/m18000 support"
+	depends on PCI && (64BIT || COMPILE_TEST) && !CPU_BIG_ENDIAN
+	help
+	  This driver supports Nebula-matrix Ethernet Controller m18110/m18000
+	  Family of devices.
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/nebula-matrix/nbl.rst>.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called nbl.
+
+endif # NET_VENDOR_NEBULA_MATRIX

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Nebula-matrix network device drivers.
+#
+
+obj-$(CONFIG_NBL) += nbl/

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2025 Nebula Matrix Limited.
+
+obj-$(CONFIG_NBL) := nbl.o
+
+nbl-objs +=      nbl_main.o

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ */
+
+#ifndef _NBL_CORE_H_
+#define _NBL_CORE_H_
+
+enum {
+	NBL_CAP_HAS_NET_BIT,
+};
+
+#endif

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ */
+
+#ifndef _NBL_INCLUDE_H_
+#define _NBL_INCLUDE_H_
+
+#include <linux/types.h>
+
+/*  ------  Basic definitions  -------  */
+#define NBL_DRIVER_NAME					"nbl"
+
+#endif

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ */
+
+#include <linux/device.h>
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/bits.h>
+#include "nbl_include/nbl_include.h"
+#include "nbl_core.h"
+
+static int nbl_probe(struct pci_dev *pdev,
+		     const struct pci_device_id *id)
+{
+	return -ENODEV;
+}
+
+static void nbl_remove(struct pci_dev *pdev)
+{
+}
+
+/*
+ * PCI Device IDs for Leonis/NBL Network Controllers
+ *
+ * Vendor ID: 0x1F0F
+ * SNIC v3r1 product Device IDs range: 0x3403-0x3412
+ */
+#define NBL_VENDOR_ID				0x1F0F
+
+#define NBL_DEVICE_ID_M18110			0x3403
+#define NBL_DEVICE_ID_M18110_LX			0x3404
+#define NBL_DEVICE_ID_M18110_BASE_T		0x3405
+#define NBL_DEVICE_ID_M18110_LX_BASE_T		0x3406
+#define NBL_DEVICE_ID_M18110_OCP		0x3407
+#define NBL_DEVICE_ID_M18110_LX_OCP		0x3408
+#define NBL_DEVICE_ID_M18110_BASE_T_OCP		0x3409
+#define NBL_DEVICE_ID_M18110_LX_BASE_T_OCP	0x340a
+#define NBL_DEVICE_ID_M18000			0x340b
+#define NBL_DEVICE_ID_M18000_LX			0x340c
+#define NBL_DEVICE_ID_M18000_BASE_T		0x340d
+#define NBL_DEVICE_ID_M18000_LX_BASE_T		0x340e
+#define NBL_DEVICE_ID_M18000_OCP		0x340f
+#define NBL_DEVICE_ID_M18000_LX_OCP		0x3410
+#define NBL_DEVICE_ID_M18000_BASE_T_OCP		0x3411
+#define NBL_DEVICE_ID_M18000_LX_BASE_T_OCP	0x3412
+
+/* All below IDs belong to Leonis ASIC family, different form-factor variants,
+ * share the same hardware initialization flow without differentiated ops.
+ */
+static const struct pci_device_id nbl_id_table[] = {
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) },
+	/* required as sentinel */
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, nbl_id_table);
+
+static struct pci_driver nbl_driver = {
+	.name = NBL_DRIVER_NAME,
+	.id_table = nbl_id_table,
+	.probe = nbl_probe,
+	.remove = nbl_remove,
+};
+
+module_pci_driver(nbl_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Nebula Matrix Network Driver");
+MODULE_AUTHOR("Illusion Wang <illusion.wang@nebula-matrix.com>");