net-misc/r8152: New package

r8152 is the driver for many Realtek USB Ethernet NICs.

Signed-off-by: Jay Faulkner <jay@jvf.cc>
Closes: https://github.com/gentoo/gentoo/pull/28238
Signed-off-by: Sam James <sam@gentoo.org>

4 files changed, 110 insertions, 0 deletions

diff --git a/net-misc/r8152/Manifest b/net-misc/r8152/Manifest
new file mode 100644
index 000000000000..1ea2813cb410
--- /dev/null
+++ b/net-misc/r8152/Manifest
@@ -0,0 +1 @@
+DIST r8152-2.16.3.tar.bz2 73331 BLAKE2B 9e22ee6d9d0197def782f77bfd0c88a2d8827d4f8cc0bbb1a6583ab67533cd07ba79a16cd9350272ed18c733fe809ea1ff70596627abdc65d452bdf817628bc8 SHA512 c37bf5199d3a857c9a7a12f3aa4ecfe9c04b49413aea862a053ebee24c137cd35769e5d5cc7e2bb7dd3bf9057f51ffada0b4e0c53cb3d417e05c8e3fc830705c
diff --git a/net-misc/r8152/files/r8152-2.16.3-kernel-5.19-fix.patch b/net-misc/r8152/files/r8152-2.16.3-kernel-5.19-fix.patch
new file mode 100644
index 000000000000..076d78f46062
--- /dev/null
+++ b/net-misc/r8152/files/r8152-2.16.3-kernel-5.19-fix.patch
@@ -0,0 +1,43 @@
+From: https://github.com/wget/realtek-r8152-linux/commit/6ffb3760c34a904467d70830ac9c10211e8f5d3a
+From: Hyacinthe Cartiaux <hyacinthe.cartiaux@free.fr>
+Date: Wed, 14 Sep 2022 15:13:31 +0200
+Subject: [PATCH] Fix for linux 5.19 without breaking older kernel
+ compatibility
+
+--- a/r8152.c
++++ b/r8152.c
+@@ -20458,9 +20458,13 @@ static ssize_t sg_en_store(struct device *dev, struct device_attribute *attr,
+ 		return -EINVAL;
+ 	}
+ 
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,19,0)
++/* LINUX_VERSION_CODE >= KERNEL_VERSION(5,19,0) */
++	netif_set_tso_max_size(netdev, tso_size);
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
++/* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) */
+ 	netif_set_gso_max_size(netdev, tso_size);
+-#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) */
++#endif
+ 
+ 	return count;
+ }
+@@ -20620,12 +20624,16 @@ static int rtl8152_probe(struct usb_interface *intf,
+ 	rtl_get_mapt_ver(tp);
+ 
+ 	netdev->ethtool_ops = &ops;
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,19,0)
++/* LINUX_VERSION_CODE >= KERNEL_VERSION(5,19,0) */
++	netif_set_tso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
++/* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) */
+ 	if (!tp->sg_use)
+ 		netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
+ #else
+ 	netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
+-#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) */
++#endif
+ 
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)
+ 	/* MTU range: 68 - 1500 or 9194 */
diff --git a/net-misc/r8152/metadata.xml b/net-misc/r8152/metadata.xml
new file mode 100644
index 000000000000..b840941c9ce9
--- /dev/null
+++ b/net-misc/r8152/metadata.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person" proxied="yes">
+		<email>jay@jvf.cc</email>
+		<name>Jay Faulkner</name>
+	</maintainer>
+	<maintainer type="project" proxied="proxy">
+		<email>proxy-maint@gentoo.org</email>
+		<name>Proxy Maintainers</name>
+	</maintainer>
+	<longdescription>Official Realtek r8152 linux driver. The following cards are currently supported:
+RTL8156 RTL8156B(S)(G) RTL8153 RTL8153B RTL8154 RTL8154B RTL8152B</longdescription>
+	<use>
+		<flag name="center-tap-short">Enable support for center tap short</flag>
+	</use>
+</pkgmetadata>
diff --git a/net-misc/r8152/r8152-2.16.3.ebuild b/net-misc/r8152/r8152-2.16.3.ebuild
new file mode 100644
index 000000000000..bb0eb2cef113
--- /dev/null
+++ b/net-misc/r8152/r8152-2.16.3.ebuild
@@ -0,0 +1,49 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit udev linux-info linux-mod
+
+DESCRIPTION="r8152 driver for Realtek USB FE / GBE / 2.5G Gaming Ethernet Family Controller"
+HOMEPAGE="https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software"
+
+SRC_URI="http://rtitwww.realtek.com/rtdrivers/cn/nic1/${P}.tar.bz2"
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+RDEPEND="virtual/udev"
+DEPEND="${RDEPEND}"
+
+MODULE_NAMES="r8152(net/usb:${S})"
+BUILD_TARGETS="modules"
+IUSE="+center-tap-short"
+
+# https://github.com/wget/realtek-r8152-linux/ keeps reasonably up to date
+# with kernel support patches. It appears to be used by the AUR maintainer.
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.16.3-kernel-5.19-fix.patch
+)
+
+pkg_setup() {
+	linux-mod_pkg_setup
+	BUILD_PARAMS="KERNELDIR=${KV_DIR}"
+	BUILD_PARAMS+=" CONFIG_CTAP_SHORT=$(usex center-tap-short on off)"
+}
+
+src_install() {
+	linux-mod_src_install
+	einstalldocs
+	udev_dorules 50-usb-realtek-net.rules
+}
+
+pkg_postinst() {
+	linux-mod_pkg_postinst
+	udev_reload
+}
+
+pkg_postrm() {
+	linux-mod_pkg_postrm
+	udev_reload
+}