[PATCH v2 net-next 01/15] net/nebula-matrix: add minimum nbl build framework
From: illusion.wang <hidden>
Date: 2026-01-09 10:02:44
Also in:
linux-doc, lkml
Subsystem:
documentation, networking drivers, networking [general], the rest · Maintainers:
Jonathan Corbet, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
1.Add nbl min build infrastructure for nbl driver. 2.Implemented the framework of pci device initialization. Signed-off-by: illusion.wang <redacted> --- .../ethernet/nebula-matrix/m18100.rst | 52 ++++++++ MAINTAINERS | 10 ++ drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/nebula-matrix/Kconfig | 39 ++++++ drivers/net/ethernet/nebula-matrix/Makefile | 6 + .../net/ethernet/nebula-matrix/nbl/Makefile | 11 ++ .../net/ethernet/nebula-matrix/nbl/nbl_core.h | 29 +++++ .../nbl/nbl_include/nbl_include.h | 24 ++++ .../net/ethernet/nebula-matrix/nbl/nbl_main.c | 117 ++++++++++++++++++ 10 files changed, 290 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/nebula-matrix/m18100.rst b/Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst
new file mode 100644
index 000000000000..e1b63a2bafe0
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/nebula-matrix/m18100.rst@@ -0,0 +1,52 @@ +.. 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 SR-IOV. This driver is used for both of Physical +Function(PF) and Virtual Function(VF). + +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 +1f0f:3413 - M18100 Family Virtual Function + +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 765ad2daa218..6cf58be32a17 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -18003,6 +18003,16 @@ 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 4a1b368ca7e6..4753e203ba85 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig@@ -143,6 +143,7 @@ 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/neterion/Kconfig" source "drivers/net/ethernet/netronome/Kconfig" source "drivers/net/ethernet/8390/Kconfig"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 2e18df8ca8ec..fec3cbf75f10 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile@@ -69,6 +69,7 @@ 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_NETERION) += neterion/ obj-$(CONFIG_NET_VENDOR_NETRONOME) += netronome/ obj-$(CONFIG_NET_VENDOR_NI) += ni/
diff --git a/drivers/net/ethernet/nebula-matrix/Kconfig b/drivers/net/ethernet/nebula-matrix/Kconfig
new file mode 100644
index 000000000000..ff786917f2bf
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/Kconfig@@ -0,0 +1,39 @@ +# 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 m18110 Family support" + depends on PCI && VFIO + depends on ARM64 || X86_64 + default m + select PLDMFW + select PAGE_POOL + help + This driver supports Nebula-matrix Ethernet Controller m18110 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/m18110.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..e91de717bfe8
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core.h@@ -0,0 +1,29 @@ +/* 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_VF(val) NBL_CAP_TEST_BIT(val, NBL_CAP_IS_VF_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_VF_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..963e13927a79
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_include/nbl_include.h@@ -0,0 +1,24 @@ +/* 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_vf:1; + u32 is_nic:1; + u32 is_ocp:1; + u32 rsv:27; +}; + +#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..ddb45144ff1c
--- /dev/null
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_main.c@@ -0,0 +1,117 @@ +// 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) +{ + struct device *dev = &pdev->dev; + + dev_dbg(dev, "nbl probe ok!\n"); + return 0; +} + +static void nbl_remove(struct pci_dev *pdev) +{ + dev_dbg(&pdev->dev, "nbl remove OK!\n"); +} + +#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) +#define NBL_DEVICE_ID_M18000_VF (0x3413) + +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) }, + { PCI_DEVICE(NBL_VENDOR_ID, NBL_DEVICE_ID_M18000_VF), + .driver_data = BIT(NBL_CAP_HAS_NET_BIT) | BIT(NBL_CAP_IS_VF_BIT) | + BIT(NBL_CAP_IS_NIC_BIT) | BIT(NBL_CAP_IS_LEONIS_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