net: guangruntong: Add support for Guangruntong ethernet card

This driver comes from Guangruntong Cooperation, which provides
support for Guangruntong ethernet card.

Link: deepin-community/kernel#349
Link: deepin-community/kernel#357
Co-developed-by: Shunkui Hu <hushunkui@grt-china.com>
Signed-off-by: Shunkui Hu <hushunkui@grt-china.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>

drivers/net/ethernet/Kconfig

@@ -192,5 +192,6 @@ source "drivers/net/ethernet/wangxun/Kconfig"
 source "drivers/net/ethernet/wiznet/Kconfig"
 source "drivers/net/ethernet/xilinx/Kconfig"
 source "drivers/net/ethernet/xircom/Kconfig"
+source "drivers/net/ethernet/guangruntong/Kconfig"
 
 endif # ETHERNET

drivers/net/ethernet/Makefile

@@ -104,3 +104,4 @@ obj-$(CONFIG_NET_VENDOR_XILINX) += xilinx/
 obj-$(CONFIG_NET_VENDOR_XIRCOM) += xircom/
 obj-$(CONFIG_NET_VENDOR_SYNOPSYS) += synopsys/
 obj-$(CONFIG_NET_VENDOR_PENSANDO) += pensando/
+obj-$(CONFIG_NET_VENDOR_GRT) += guangruntong/

drivers/net/ethernet/guangruntong/Kconfig

@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Guangruntong network device configuration
+#
+
+config NET_VENDOR_GRT
+        bool "Guanruntong devices"
+        depends on PCI
+        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 Intel cards. If you say Y, you will be asked for
+          your specific card in the following questions.
+
+config GRTNIC
+        tristate "Guangruntong PCI Express adapters support"
+        depends on NET_VENDOR_GRT
+        help
+          This driver supports Guangruntong PCI Express family of
+          adapters.

drivers/net/ethernet/guangruntong/Makefile

@@ -0,0 +1,245 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 1999 - 2021 Intel Corporation.
+
+ifneq ($(KERNELRELEASE),)
+# kbuild part of makefile
+#
+# Makefile for the Intel(R) 10GbE PCI Express Linux Network Driver
+#
+
+obj-$(CONFIG_GRTNIC_XGB) += grtnic_xgb.o
+
+define grtnic_xgb-y
+	grtnic_main.o
+	grtnic_netdev.o
+	grtnic_macphy.o
+	grtnic_param.o
+	grtnic_nvm.o
+	grtnic_ethtool.o
+	grtnic_proc.o
+endef
+grtnic_xgb-y := $(strip ${grtnic_xgb-y})
+grtnic_xgb-y += kcompat.o
+
+else	# ifneq($(KERNELRELEASE),)
+# normal makefile
+
+DRIVER := grtnic_xgb
+
+# Check that kernel version is at least 2.6.0, since we don't support 2.4.x
+# kernels with the grtnic driver. We can't use minimum_kver_check since SLES 10
+# SP4's Make has a bug which causes $(eval) inside an ifeq conditional to error
+# out. This was fixed in Make 3.81, but SLES 10 SP4 does not have a fix for
+# this yet.
+ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,2,6,0) ]; echo "$?"))
+  $(warning *** Aborting the build.)
+  $(error This driver is not supported on kernel versions older than 2.6.0)
+endif
+
+######################
+# Kernel Build Macro #
+######################
+
+# customized kernelbuild function
+#
+# ${1} is the kernel build target
+# ${2} may contain extra rules to pass to kernelbuild macro
+#
+# We customize the kernelbuild target in order to provide our hack to disable
+# CONFIG_PTP_1588_CLOCK support should -DNO_PTP_SUPPORT be defined in the extra
+# cflags given on the command line.
+devkernelbuild = $(call kernelbuild,$(if $(filter -DNO_PTP_SUPPORT,${EXTRA_CFLAGS}),CONFIG_PTP_1588_CLOCK=n) ${2},${1})
+
+# Command to update initramfs or display a warning message
+ifeq (${cmd_initrd},)
+define cmd_initramfs
+@echo "Unable to update initramfs. You may need to do this manually."
+endef
+else
+define cmd_initramfs
+@echo "Updating initramfs..."
+-@$(call cmd_initrd)
+endef
+endif
+
+###############
+# Build rules #
+###############
+
+# Standard compilation, with regular output
+default:
+	@+$(call devkernelbuild,modules)
+
+# Noisy output, for extra debugging
+noisy:
+	@+$(call devkernelbuild,modules,V=1)
+
+# Silence any output generated
+silent:
+	@+$(call devkernelbuild,modules,>/dev/null)
+
+# Enable higher warning level
+checkwarnings: clean
+	@+$(call devkernelbuild,modules,W=1)
+
+# Run sparse static analyzer
+sparse: clean
+	@+$(call devkernelbuild,modules,C=2 CF="-D__CHECK_ENDIAN__ -Wbitwise -Wcontext")
+
+# Run coccicheck static analyzer
+ccc: clean
+	@+$(call devkernelbuild,modules,coccicheck MODE=report))
+
+# Build manfiles
+manfile:
+	@gzip -c ../${DRIVER}.${MANSECTION} > ${DRIVER}.${MANSECTION}.gz
+
+# Clean the module subdirectories
+clean:
+	@+$(call devkernelbuild,clean)
+	@-rm -rf *.${MANSECTION}.gz *.ko
+
+kylin: EXTRA_CFLAGS += -DKYLIN_KERNEL
+kylin:
+	@echo "Compile for Kylin kernel..."
+	@+$(call devkernelbuild,modules)
+
+kylin44: EXTRA_CFLAGS += -DKYLIN_KERNEL44
+kylin44:
+	@echo "Compile for Kylin4.4 kernel..."
+	@+$(call devkernelbuild,modules)
+
+uos: EXTRA_CFLAGS += -DUOS_KERNEL
+uos:
+	@echo "Compile for Uos kernel..."
+	@+$(call devkernelbuild,modules)
+
+euler: EXTRA_CFLAGS += -DEULER_KERNEL
+euler:
+	@echo "Compile for OpenEuler kernel..."
+	@+$(call devkernelbuild,modules)
+
+
+# Install the modules and manpage
+mandocs_install: manfile
+	@echo "Copying manpages..."
+	@install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
+
+# Install kernel module files. This target is called by the RPM specfile
+# when generating binary RPMs, and is not expected to modify files outside
+# of the build root. Thus, it must not update initramfs, or run depmod.
+modules_install: default
+	@echo "Installing modules..."
+	@+$(call devkernelbuild,modules_install)
+
+kylin_modules_install: kylin
+	@echo "Installing modules..."
+	@+$(call devkernelbuild,modules_install)
+
+kylin44_modules_install: kylin44
+	@echo "Installing modules..."
+	@+$(call devkernelbuild,modules_install)
+
+uos_modules_install: uos
+	@echo "Installing modules..."
+	@+$(call devkernelbuild,modules_install)
+
+euler_modules_install: euler
+	@echo "Installing modules..."
+	@+$(call devkernelbuild,modules_install)
+
+# After installing all the files, perform necessary work to ensure the
+# system will use the new modules. This includes running depmod to update
+# module dependencies and updating the initramfs image in case the module is
+# loaded during early boot.
+install: modules_install #mandocs_install
+	@echo "Running depmod..."
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+kylin_install: kylin_modules_install #mandocs_install
+	@echo "Running depmod..."
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+kylin44_install: kylin44_modules_install #mandocs_install
+	@echo "Running depmod..."
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+uos_install: uos_modules_install #mandocs_install
+	@echo "Running depmod..."
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+euler_install: euler_modules_install #mandocs_install
+	@echo "Running depmod..."
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+mandocs_uninstall:
+	if [ -e ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ] ; then \
+		rm -f ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ; \
+	fi;
+
+# Remove installed module files. This target is called by the RPM specfile
+# when generating binary RPMs, and is not expected to modify files outside
+# of the build root. Thus, it must not update the initramfs image or run
+# depmod.
+modules_uninstall:
+	rm -f ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko;
+
+# After uninstalling all the files, perform necessary work to restore the
+# system back to using the default kernel modules. This includes running
+# depmod to update module dependencies and updating the initramfs image.
+uninstall: modules_uninstall
+	$(call cmd_depmod)
+	$(call cmd_initramfs)
+
+########
+# Help #
+########
+help:
+	@echo 'Build targets:'
+	@echo '  default             - Build module(s) with standard verbosity'
+	@echo '  kylin           		 - Build module(s) for kylin Kernel'
+	@echo '  kylin44         		 - Build module(s) for kylin 4.4 Kernel'
+	@echo '  uos           		 	 - Build module(s) for uos Kernel'
+	@echo '  euler           		 - Build module(s) for euler Kernel'
+	@echo '  noisy               - Build module(s) with V=1 verbosity -- very noisy'
+	@echo '  silent              - Build module(s), squelching all output'
+	@echo ''
+	@echo 'Static Analysis:'
+	@echo '  checkwarnings       - Clean, then build module(s) with W=1 warnings enabled'
+	@echo '  sparse              - Clean, then check module(s) using sparse'
+	@echo '  ccc                 - Clean, then check module(s) using coccicheck'
+	@echo ''
+	@echo 'Cleaning targets:'
+	@echo '  clean               - Clean files generated by kernel module build'
+	@echo ''
+	@echo 'Other targets:'
+	@echo '  manfile             - Generate a gzipped manpage'
+	@echo '  modules_install     - Install the module(s) only'
+	@echo '  mandocs_install     - Install the manpage only'
+	@echo '  install             - Build then install the module(s) and manpage, and update initramfs'
+	@echo '  kylin_install   	   - Build then install kylin module(s) and update initramfs'
+	@echo '  kylin44_install 	   - Build then install kylin 4.4 module(s) and update initramfs'
+	@echo '  uos_install   	     - Build then install uos module(s) and update initramfs'
+	@echo '  euler_install   	   - Build then install OpenEuler module(s) and update initramfs'
+	@echo '  modules_uninstall   - Uninstall the module(s) only'
+	@echo '  mandocs_uninstall   - Uninstall the manpage only'
+	@echo '  uninstall           - Uninstall the module(s) and manpage, and update initramfs'
+	@echo '  help                - Display this help message'
+	@echo ''
+	@echo 'Variables:'
+	@echo '  LINUX_VERSION       - Debug tool to force kernel LINUX_VERSION_CODE. Use at your own risk.'
+	@echo '  W=N                 - Kernel variable for setting warning levels'
+	@echo '  V=N                 - Kernel variable for setting output verbosity'
+	@echo '  INSTALL_MOD_PATH    - Add prefix for the module and manpage installation path'
+	@echo '  INSTALL_MOD_DIR     - Use module directory other than updates/drivers/net/ethernet/intel/${DRIVER}'
+	@echo ' Other variables may be available for tuning make process, see'
+	@echo ' Kernel Kbuild documentation for more information'
+
+.PHONY: default noisy clean manfile silent sparse ccc install uninstall help
+
+endif	# ifneq($(KERNELRELEASE),)