DKMS makefile for E810 driver intel/ethernet-linux-ice

Makefile

# Makefile to add the Intel ice driver (E810) as a DKMS module to Debian
#
# Check out the repository https://github.com/intel/ethernet-linux-ice
# into a directory. Put this Makefile into the root of that directory.
# Run `make` as root, which should add the module to DKMS and build it.
# Use `make install` to install, or just `dkms install ice/2.4.5` directly.
# `make clean` to restore the initial state.
#
# When the driver is updated, `git pull` and then just `make` again. It
# should automatically update the version number, as long as the format
# of `src/ice_main.c` remains.
#
# Use and distribute freely at your own risk, absolutely no warranty.
#
# - Kimmo Kulovesi https://github.com/arkku/

MODULE := ice
VERSION := $(shell awk '/^\s*#define DRV_VERSION\s*"[0-9.]+"/ { gsub(/"/, "", $$3); print $$3; exit 0 }' src/$(MODULE)_main.c)
SRC_DIR := /usr/src/$(MODULE)-$(VERSION)
KERNEL_VERSION := $(shell uname -r)
ARCH := $(shell uname -m)
DKMS_DIR := /var/lib/dkms/$(MODULE)/$(VERSION)
DKMS_ADDED := $(DKMS_DIR)/source
DKMS_BUILT := $(DKMS_DIR)/$(KERNEL_VERSION)/$(ARCH)/module/$(MODULE).ko.xz

all: $(DKMS_BUILT)

dkms.conf: src/$(MODULE)_main.c Makefile
	@echo 'PACKAGE_NAME="$(MODULE)"' > $@
	@echo 'PACKAGE_VERSION="$(VERSION)"' >> $@
	@echo 'BUILT_MODULE_NAME[0]="$(MODULE)"' >> $@
	@echo 'BUILT_MODULE_LOCATION[0]="src/"' >> $@
	@echo "MAKE[0]=\"'make' -j\$$(nproc) -C src/\"" >> $@
	@echo 'CLEAN="make -C src/ clean"' >> $@
	@echo 'DEST_MODULE_LOCATION[0]="/kernel/drivers/net/ethernet/intel/$(MODULE)/"' >> $@
	@echo 'AUTOINSTALL="yes"' >> $@

$(SRC_DIR): dkms.conf $(wildcard src/*)
	mkdir -p $@
	rsync -a --exclude='.git' --exclude='*.o' --exclude='*.ko' ./ $@/
	@touch $@

$(DKMS_ADDED): $(SRC_DIR)
	-dkms add -m $(MODULE) -v $(VERSION)

$(DKMS_BUILT): $(DKMS_ADDED)
	dkms build -m $(MODULE) -v $(VERSION) -k $(KERNEL_VERSION) --force

build: $(DKMS_BUILT)

add: $(DKMS_ADDED)

install: $(DKMS_BUILT)
	dkms install -m $(MODULE) -v $(VERSION)

clean: uninstall
	-rm -rf $(SRC_DIR)

uninstall:
	-dkms uninstall -m $(MODULE) -v $(VERSION)
	-dkms remove -m $(MODULE) -v $(VERSION) --all

.PHONY: all add install clean uninstall build

Tested with version 2.4.5, the most recent one at the time of writing in intel/ethernet-linux-ice:

…/ethernet-linux-ice# make
mkdir -p /usr/src/ice-2.4.5
rsync -a --exclude='.git' --exclude='*.o' --exclude='*.ko' ./ /usr/src/ice-2.4.5/
dkms add -m ice -v 2.4.5
Creating symlink /var/lib/dkms/ice/2.4.5/source -> /usr/src/ice-2.4.5
dkms build -m ice -v 2.4.5 -k 6.12.57+deb13-amd64 --force
Sign command: /lib/modules/6.12.57+deb13-amd64/build/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub

Building module(s)........ done.
Signing module /var/lib/dkms/ice/2.4.5/build/src/ice.ko

The Makefile creates a dkms.conf like:

PACKAGE_NAME="ice"
PACKAGE_VERSION="2.4.5"
BUILT_MODULE_NAME[0]="ice"
BUILT_MODULE_LOCATION[0]="src/"
MAKE[0]="'make' -j$(nproc) -C src/"
CLEAN="make -C src/ clean"
DEST_MODULE_LOCATION[0]="/kernel/drivers/net/ethernet/intel/ice/"
AUTOINSTALL="yes"

The version number is extracted from the sources automatically.

(BTW, currently the Gist looks wrong in the syntax highlighted version, but copypasting from the raw file works.)