# Maintainer: Jake Buchholz <tomalok@gmail.com>

_name=aws-ena-driver
_flavor=${FLAVOR:-vanilla}
_kpkg=linux-$_flavor
_kver=4.19.12
_krel=0

_kpkgver="$_kver-r$_krel"
_kabi="$_kver-$_krel-$_flavor"
_kabi_virt="$_kver-$_krel-virt"

_ver=2.0.2
_rel=0

pkgname=$_name-$_flavor
pkgver=$_kver
pkgrel=$(( $_krel + $_rel ))
pkgdesc="Linux Kernel driver for Elastic Network Adapter (ENA) family ($_flavor kernel)"
url="https://github.com/amzn/amzn-drivers"
arch="x86 x86_64"
license="GPL-2.0"
# Upstream has no tests
options="!strip !check"
depends=
makedepends="linux-$_flavor-dev=$_kpkgver linux-virt-dev=$_kpkgver"
install=
source="https://github.com/amzn/amzn-drivers/archive/ena_linux_$_ver.tar.gz ena.conf"
_subdir="amzn-drivers-ena_linux_$_ver"
builddir="$srcdir/$_subdir"
subpackages="$_name-virt:virt $_name:_common:noarch"
install_if="$_name=$pkgver-r$pkgrel linux-$_flavor"

prepare() {
	local i
	cd "$builddir"
	default_prepare
	# verify the kernel version
	local _kapkbuild=../../main/linux-$_pkgver/APKBUILD
	if [ -f $_kapkbuild ]; then
		(	. $_kapkbuild
			pkgname=$_name-$_flavor
			[ "$_kver" != "$pkgver" ] && die "please update _kver to $pkgver"
			[ "$_krel" != "$pkgrel" ] && die "please update _krel to $pkgrel"
			return 0
		)
	fi
	for i in $_kabi $_kabi_virt; do
		mkdir -p "$srcdir/$i"
		tar -C "$srcdir/$i" -zxf "$srcdir/ena_linux_$_ver.tar.gz"
	done
}

build() {
	local i
	for i in $_kabi $_kabi_virt; do
		cd "$srcdir/$i/$_subdir"/kernel/linux/ena
		make BUILD_KERNEL="$i"
	done
}

package() {
	local i
	install -Dm644 "$srcdir"/ena.conf \
		"$pkgdir"/etc/modules-load.d/ena.conf
	for i in $_kabi $_kabi_virt; do
		cd "$srcdir/$i/$_subdir"/kernel/linux/ena
		install -Dm644 ena.ko \
			"$pkgdir/lib/modules/$i"/kernel/drivers/net/ethernet/amazon/ena/ena.ko
	done
}

virt() {
	pkgdesc="Linux Kernel driver for Elastic Network Adapter (ENA) family - (virt kernel)"
	install_if="$_name=$pkgver-r$pkgrel linux-virt"
	mkdir -p "$subpkgdir"/lib/modules
	mv "$pkgdir"/lib/modules/$_kabi_virt \
		"$subpkgdir"/lib/modules
}

_common() {
	pkgdesc="Elasic Network Adapter (ENA) driver common file(s)"
	install_if=
	mkdir -p "$subpkgdir"
	mv "$pkgdir"/etc/ "$subpkgdir"/
}

sha512sums="8f2dcb2a7fc957c4a845881d3abe0be5e1aa3ab12705aafce4c3bc5cd6b6055225e9b59461741c95fd85decc8aa0ef50ffa5c2b973a7ca25de674231e25b4b22  ena_linux_2.0.2.tar.gz
479a96de0284c815cb4bc60ee129be831f97424f121ede3c14c3dfead162ebb5a3f16c535cc412caf0bdcf2de70c6c3f6cc1c83ff2d4aae1f5e3848279f927d2  ena.conf"