1.Add nbl min build infrastructure for nbl driver.

2.Implemented the framework of pci device initialization.

Signed-off-by: illusion.wang <illusion.wang@nebula-matrix.com>
---
 .../device_drivers/ethernet/index.rst         |   1 +
 .../ethernet/nebula-matrix/m18100.rst         |  47 ++++++++
 MAINTAINERS                                   |  10 ++
 drivers/net/ethernet/Kconfig                  |   1 +
 drivers/net/ethernet/Makefile                 |   1 +
 drivers/net/ethernet/nebula-matrix/Kconfig    |  36 ++++++
 drivers/net/ethernet/nebula-matrix/Makefile   |   6 +
 .../net/ethernet/nebula-matrix/nbl/Makefile   |  11 ++
 .../net/ethernet/nebula-matrix/nbl/nbl_core.h |  27 +++++
 .../nbl/nbl_include/nbl_include.h             |  23 ++++
 .../net/ethernet/nebula-matrix/nbl/nbl_main.c | 109 ++++++++++++++++++
 11 files changed, 272 insertions(+)
 create mode 100644 Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst
 create mode 100644 drivers/net/ethernet/nebula-matrix/Kconfig
 create mode 100644 drivers/net/ethernet/nebula-matrix/Makefile
 create mode 100644 drivers/net/ethernet/nebula-matrix/nbl/Makefile
 create mode 100644 drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h
 create mode 100644 drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h
 create mode 100644 drivers/net/ethernet/nebula-matrix/nbl/nbl_main.c

diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
index 5e8fc3d6d741..8b049cb0f3bd 100644
--- a/Documentation/networking/device_drivers/ethernet/index.rst
+++ b/Documentation/networking/device_drivers/ethernet/index.rst
@@ -48,6 +48,7 @@ Contents:
    meta/fbnic
    microsoft/netvsc
    mucse/rnpgbe
+   nebula-matrix/nbl
    netronome/nfp
    pensando/ionic
    pensando/ionic_rdma
diff --git a/Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst b/Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst
new file mode 100644
index 000000000000..c763042ce3ee
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst
@@ -0,0 +1,47 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============================================================
+Linux Base Driver for Nebula-matrix M18100-NIC family
+============================================================
+
+Overview:
+=========
+M18100-NIC is a series of network interface card for the Data Center Area.
+
+The driver supports link-speed 100GbE/25GE/10GE.
+
+M18100-NIC devices support MSI-X interrupt vector for each Tx/Rx queue and
+interrupt moderation.
+
+M18100-NIC devices support also various offload features such as checksum offload,
+Receive-Side Scaling(RSS).
+
+Supported PCI vendor ID/device IDs:
+===================================
+
+1f0f:3403 - M18110 Family PF
+1f0f:3404 - M18110 Lx Family PF
+1f0f:3405 - M18110 Family BASE-T PF
+1f0f:3406 - M18110 Lx Family BASE-T PF
+1f0f:3407 - M18110 Family OCP PF
+1f0f:3408 - M18110 Lx Family OCP PF
+1f0f:3409 - M18110 Family BASE-T OCP PF
+1f0f:340a - M18110 Lx Family BASE-T OCP PF
+1f0f:340b - M18100 Family PF
+1f0f:340c - M18100 Lx Family PF
+1f0f:340d - M18100 Family BASE-T PF
+1f0f:340e - M18100 Lx Family BASE-T PF
+1f0f:340f - M18100 Family OCP PF
+1f0f:3410 - M18100 Lx Family OCP PF
+1f0f:3411 - M18100 Family BASE-T OCP PF
+1f0f:3412 - M18100 Lx Family BASE-T OCP PF
+
+Support
+=======
+
+For more information about M18100-NIC, please visit the following URL:
+https://www.nebula-matrix.com/
+
+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.
diff --git a/MAINTAINERS b/MAINTAINERS
index 98b07da905b0..2c85f70023a9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18015,6 +18015,16 @@ 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:	llusion.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
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index aa7103e7f47f..3aa005adb90e 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -131,6 +131,7 @@ 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"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 6615a67a63d5..024a8e91abed 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -68,6 +68,7 @@ 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/
diff --git a/drivers/net/ethernet/nebula-matrix/Kconfig b/drivers/net/ethernet/nebula-matrix/Kconfig
new file mode 100644
index 000000000000..9c65803f5447
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/Kconfig
@@ -0,0 +1,36 @@
+# 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_CORE
+	tristate "Nebula-matrix Ethernet Controller m18100 Family support"
+	depends on 64BIT && PCI
+	default m
+	select PAGE_POOL
+	help
+	  This driver supports Nebula-matrix Ethernet Controller m18100 Family of
+	  devices.  For more information about this product, go to the product
+	  description with smart NIC:
+
+	  <http://www.nebula-matrix.com>
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst>.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called nbl_core.
+
+endif # NET_VENDOR_NEBULA_MATRIX
diff --git a/drivers/net/ethernet/nebula-matrix/Makefile b/drivers/net/ethernet/nebula-matrix/Makefile
new file mode 100644
index 000000000000..dc6bf7dcd6bf
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Nebula-matrix network device drivers.
+#
+
+obj-$(CONFIG_NBL_CORE) += nbl/
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/Makefile b/drivers/net/ethernet/nebula-matrix/nbl/Makefile
new file mode 100644
index 000000000000..df16a3436a5c
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2025 Nebula Matrix Limited.
+# Author:
+
+obj-$(CONFIG_NBL_CORE) := nbl_core.o
+
+nbl_core-objs +=      nbl_main.o
+
+# Provide include files
+ccflags-y += -I$(srctree)/drivers/net/ethernet/nebula-matrix/nbl/nbl_include/
+ccflags-y += -I$(srctree)/drivers/net/ethernet/nebula-matrix/nbl/
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h
new file mode 100644
index 000000000000..51aa4d87146f
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0*/
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ * Author:
+ */
+
+#ifndef _NBL_CORE_H_
+#define _NBL_CORE_H_
+
+#include <linux/pci.h>
+#include "nbl_include.h"
+#define NBL_CAP_TEST_BIT(val, loc) (((val) >> (loc)) & 0x1)
+
+#define NBL_CAP_IS_CTRL(val) NBL_CAP_TEST_BIT(val, NBL_CAP_HAS_CTRL_BIT)
+#define NBL_CAP_IS_NET(val) NBL_CAP_TEST_BIT(val, NBL_CAP_HAS_NET_BIT)
+#define NBL_CAP_IS_NIC(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_NIC_BIT)
+#define NBL_CAP_IS_OCP(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_OCP_BIT)
+#define NBL_CAP_IS_LEONIS(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_LEONIS_BIT)
+
+enum {
+	NBL_CAP_HAS_CTRL_BIT = 0,
+	NBL_CAP_HAS_NET_BIT,
+	NBL_CAP_IS_NIC_BIT,
+	NBL_CAP_IS_LEONIS_BIT,
+	NBL_CAP_IS_OCP_BIT,
+};
+#endif
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h b/drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h
new file mode 100644
index 000000000000..f12bf019dfee
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0*/
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ * Author:
+ */
+
+#ifndef _NBL_INCLUDE_H_
+#define _NBL_INCLUDE_H_
+
+#include <linux/types.h>
+
+/*  ------  Basic definitions  -------  */
+#define NBL_DRIVER_NAME					"nbl_core"
+
+struct nbl_func_caps {
+	u32 has_ctrl:1;
+	u32 has_net:1;
+	u32 is_nic:1;
+	u32 is_ocp:1;
+	u32 rsv:28;
+};
+
+#endif
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/nbl_main.c b/drivers/net/ethernet/nebula-matrix/nbl/nbl_main.c
new file mode 100644
index 000000000000..63bba8211654
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_main.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Nebula Matrix Limited.
+ * Author:
+ */
+
+#include <linux/aer.h>
+#include "nbl_core.h"
+
+static int nbl_probe(struct pci_dev *pdev,
+		     const struct pci_device_id __always_unused *id)
+{
+	return 0;
+}
+
+static void nbl_remove(struct pci_dev *pdev)
+{
+}
+
+#define NBL_VENDOR_ID			(0x1F0F)
+
+/*
+ *  Leonis DeviceID
+ * 0x3403-0x340d for snic v3r1 product
+ */
+#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)
+
+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) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_BASE_T),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_LX_BASE_T_OCP),
+	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
+			 BIT(NBL_CAP_IS_LEONIS_BIT) | BIT(NBL_CAP_IS_OCP_BIT) },
+	/* required as sentinel */
+	{
+		0,
+	}
+};
+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");
-- 
2.47.3

> +#define NBL_CAP_TEST_BIT(val, loc) (((val) >> (loc)) & 0x1)
> +
> +#define NBL_CAP_IS_CTRL(val) NBL_CAP_TEST_BIT(val, NBL_CAP_HAS_CTRL_BIT)
> +#define NBL_CAP_IS_NET(val) NBL_CAP_TEST_BIT(val, NBL_CAP_HAS_NET_BIT)
> +#define NBL_CAP_IS_NIC(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_NIC_BIT)
> +#define NBL_CAP_IS_OCP(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_OCP_BIT)
> +#define NBL_CAP_IS_LEONIS(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_LEONIS_BIT)
> +
> +enum {
> +	NBL_CAP_HAS_CTRL_BIT = 0,
> +	NBL_CAP_HAS_NET_BIT,
> +	NBL_CAP_IS_NIC_BIT,
> +	NBL_CAP_IS_LEONIS_BIT,
> +	NBL_CAP_IS_OCP_BIT,
> +};

> +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) | BIT(NBL_CAP_IS_NIC_BIT) |
> +			 BIT(NBL_CAP_IS_LEONIS_BIT) },
> +	{ PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18110_LX),
> +	  .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_NIC_BIT) |
> +			 BIT(NBL_CAP_IS_LEONIS_BIT) },

This seems overly complicated. Maybe NBL_CAP_* should be directly
BIT() values? 

NBL_CAP_TEST_BIT then goes away:

#define NBL_CAP_IS_CTRL(val) (val & NBL_CAP_HAS_CTRL_BIT)

which is simple enough you can have it inline, macro not needed.

It is however hard to say, because you add these macros here, but
don't have any uses of them.

	Andrew

This is an AI-generated review of your patch. The human sending this
email says "This is an automated AI code reviewer, please treat what
it says with a grain of salt."

For local reproduction steps see https://netdev-ai.bots.linux.dev/ai-local.html
---
net/nebula-matrix: add minimum nbl build framework

This commit adds the minimal build infrastructure for the Nebula-Matrix
M18100-NIC family driver, including Kconfig, Makefiles, documentation,
and stub PCI driver functions.

> diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
> --- a/Documentation/networking/device_drivers/ethernet/index.rst
> +++ b/Documentation/networking/device_drivers/ethernet/index.rst
> @@ -48,6 +48,7 @@
>    meta/fbnic
>    microsoft/netvsc
>    mucse/rnpgbe
> +   nebula-matrix/nbl
>    netronome/nfp

The documentation index references 'nebula-matrix/nbl' but the actual file
created is 'nebula-matrix/m18100.rst'. This will cause 'make htmldocs' to fail
with a broken reference.

Simon Horman flagged this in v3 review:
https://lore.kernel.org/netdev/aXj_f3hsMmvKxC26@horms.kernel.org/

Should this be 'nebula-matrix/m18100' instead?

> diff --git a/drivers/net/ethernet/nebula-matrix/Kconfig b/drivers/net/ethernet/nebula-matrix/Kconfig
> --- /dev/null
> +++ b/drivers/net/ethernet/nebula-matrix/Kconfig

[ ... ]

> +config NBL_CORE
> +	tristate "Nebula-matrix Ethernet Controller m18100 Family support"

Andrew Lunn raised concerns about the NBL_CORE naming in multiple versions of
this patch series. The "_CORE" suffix is typically reserved for libraries shared
by multiple drivers that use 'select' rather than having a tristate prompt.

If this module provides Ethernet functionality directly, the naming convention
would be to call it an Ethernet driver rather than "core".

See v1 and v3 review comments:
https://lore.kernel.org/netdev/88c7e349-f941-4216-89ca-70a49e82b378@lunn.ch/

Is there a reason to keep the _CORE suffix, or could this follow standard driver
naming conventions?