[Buildroot] [PATCH v2 1/1] package/libteam: new package

Joachim Wiberg troglobit at gmail.com
Thu Jul 15 08:34:33 UTC 2021


This package is the userspace daemon, client tool, and library for the
team device implementation in the Linux kernel.  Team is an alternative
to the traditional bonding driver and provides more "runners", or modes,
of operation for aggregates.

Team devices require the following kernel config, the most common modes
have been included to be enabled when this package is selected:

    CONFIG_NET_TEAM=y
    CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=y
    CONFIG_NET_TEAM_MODE_LOADBALANCE=y

Other possible, but not enabled, modes are:

    CONFIG_NET_TEAM_MODE_BROADCAST=y
    CONFIG_NET_TEAM_MODE_ROUNDROBIN=y
    CONFIG_NET_TEAM_MODE_RANDOM=y

Backported the three most relevant patches to fix musl build, revert of
a fix prior to 1.31 that can cause high CPU load, and a fix to prevent
failing to stop the daemon due to too short timeout for kill command.

Reviewed-by: Yegor Yefremov <yegorslists at googlemail.com>
Signed-off-by: Joachim Wiberg <troglobit at gmail.com>
---
 DEVELOPERS                                    |  1 +
 package/Config.in                             |  1 +
 .../0001-revert-disregard-current-state.patch | 51 +++++++++++++++++++
 .../0002-fix-build-on-openwrt-musl-libc.patch | 41 +++++++++++++++
 ...3-increase-wait-time-for-daemon-kill.patch | 37 ++++++++++++++
 package/libteam/Config.in                     | 26 ++++++++++
 package/libteam/libteam.hash                  |  3 ++
 package/libteam/libteam.mk                    | 22 ++++++++
 8 files changed, 182 insertions(+)
 create mode 100644 package/libteam/0001-revert-disregard-current-state.patch
 create mode 100644 package/libteam/0002-fix-build-on-openwrt-musl-libc.patch
 create mode 100644 package/libteam/0003-increase-wait-time-for-daemon-kill.patch
 create mode 100644 package/libteam/Config.in
 create mode 100644 package/libteam/libteam.hash
 create mode 100644 package/libteam/libteam.mk

diff --git a/DEVELOPERS b/DEVELOPERS
index 2a69f88299..e46362b6ee 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -1316,6 +1316,7 @@ F:	package/rtty/
 N:	Joachim Wiberg <troglobit at gmail.com>
 F:	configs/globalscale_espressobin_defconfig
 F:	board/globalscale/espressobin/
+F:	package/libteam/
 F:	package/mg/
 F:	package/netcalc/
 F:	package/ssdp-responder/
diff --git a/package/Config.in b/package/Config.in
index e883cf3780..f55d9f4cc2 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1809,6 +1809,7 @@ menu "Networking"
 	source "package/libsoup/Config.in"
 	source "package/libsrtp/Config.in"
 	source "package/libstrophe/Config.in"
+	source "package/libteam/Config.in"
 	source "package/libtelnet/Config.in"
 	source "package/libtirpc/Config.in"
 	source "package/libtorrent/Config.in"
diff --git a/package/libteam/0001-revert-disregard-current-state.patch b/package/libteam/0001-revert-disregard-current-state.patch
new file mode 100644
index 0000000000..339afbf416
--- /dev/null
+++ b/package/libteam/0001-revert-disregard-current-state.patch
@@ -0,0 +1,51 @@
+From 61efd6de2fbb8ee077863ee5a355ac3dfd9365b9 Mon Sep 17 00:00:00 2001
+From: Xin Long <lucien.xin at gmail.com>
+Date: Tue, 1 Sep 2020 13:59:27 +0800
+Subject: [PATCH] Revert "teamd: Disregard current state when considering port
+ enablement"
+
+This reverts commit deadb5b715227429a1879b187f5906b39151eca9.
+
+As Patrick noticed, with that commit, teamd_port_check_enable()
+would set the team port to the new state unconditionally, which
+triggers another change message from kernel to userspace, then
+teamd_port_check_enable() is called again to set the team port
+to the new state.
+
+This would go around and around to update the team port state,
+and even cause teamd to consume 100% cpu.
+
+As the issue caused by that commit is serious, it has to be
+reverted. As for the issued fixed by that commit, I would
+propose a new fix later.
+
+Signed-off-by: Jiri Pirko <jiri at nvidia.com>
+---
+ teamd/teamd_per_port.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/teamd/teamd_per_port.c b/teamd/teamd_per_port.c
+index 166da57..d429753 100644
+--- a/teamd/teamd_per_port.c
++++ b/teamd/teamd_per_port.c
+@@ -442,14 +442,18 @@ int teamd_port_check_enable(struct teamd_context *ctx,
+ 			    bool should_enable, bool should_disable)
+ {
+ 	bool new_enabled_state;
++	bool curr_enabled_state;
+ 	int err;
+ 
+ 	if (!teamd_port_present(ctx, tdport))
+ 		return 0;
++	err = teamd_port_enabled(ctx, tdport, &curr_enabled_state);
++	if (err)
++		return err;
+ 
+-	if (should_enable)
++	if (!curr_enabled_state && should_enable)
+ 		new_enabled_state = true;
+-	else if (should_disable)
++	else if (curr_enabled_state && should_disable)
+ 		new_enabled_state = false;
+ 	else
+ 		return 0;
diff --git a/package/libteam/0002-fix-build-on-openwrt-musl-libc.patch b/package/libteam/0002-fix-build-on-openwrt-musl-libc.patch
new file mode 100644
index 0000000000..f2b38a137d
--- /dev/null
+++ b/package/libteam/0002-fix-build-on-openwrt-musl-libc.patch
@@ -0,0 +1,41 @@
+From 267f24839536234ca621d4fd0466d3b57cb6dccd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Pavel=20=C5=A0imerda?= <code at simerda.eu>
+Date: Tue, 12 Jan 2021 04:41:56 +0100
+Subject: [PATCH] fix build on OpenWRT/musl-libc
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Pavel Šimerda <code at simerda.eu>
+Signed-off-by: Jiri Pirko <jiri at nvidia.com>
+---
+ teamd/teamd_runner_lacp.c | 2 --
+ utils/teamnl.c            | 1 +
+ 2 files changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/teamd/teamd_runner_lacp.c b/teamd/teamd_runner_lacp.c
+index 9437f05..f524be2 100644
+--- a/teamd/teamd_runner_lacp.c
++++ b/teamd/teamd_runner_lacp.c
+@@ -23,9 +23,7 @@
+ #include <unistd.h>
+ #include <limits.h>
+ #include <sys/ioctl.h>
+-#include <linux/if_ether.h>
+ #include <sys/socket.h>
+-#include <linux/netdevice.h>
+ #include <netinet/in.h>
+ #include <errno.h>
+ #include <team.h>
+diff --git a/utils/teamnl.c b/utils/teamnl.c
+index c53345d..ec2b435 100644
+--- a/utils/teamnl.c
++++ b/utils/teamnl.c
+@@ -24,6 +24,7 @@
+ #include <getopt.h>
+ #include <errno.h>
+ #include <sys/signalfd.h>
++#include <sys/select.h>
+ #include <signal.h>
+ #include <unistd.h>
+ #include <team.h>
diff --git a/package/libteam/0003-increase-wait-time-for-daemon-kill.patch b/package/libteam/0003-increase-wait-time-for-daemon-kill.patch
new file mode 100644
index 0000000000..7827a654ef
--- /dev/null
+++ b/package/libteam/0003-increase-wait-time-for-daemon-kill.patch
@@ -0,0 +1,37 @@
+From 6875e6c8efb0fe86766b3d4f1d0db390af6998b7 Mon Sep 17 00:00:00 2001
+From: Hangbin Liu <liuhangbin at gmail.com>
+Date: Tue, 15 Dec 2020 19:33:17 +0800
+Subject: [PATCH] teamd: increase the waitting time for daemon killing
+
+In the current code, we wait for at most 5s when kill the daemon pid.
+But in some environment, it may need more time. Then the teamd -k will
+failed and return error "Failed to kill daemon: Timer expired".
+
+Let's increase the value to have enough time. Here is the reuslt with
+this patch:
+
+$ time libteam/teamd/teamd -k -t team0
+
+real    0m10.442s
+user    0m0.017s
+sys     0m0.016s
+
+Signed-off-by: Hangbin Liu <liuhangbin at gmail.com>
+Signed-off-by: Jiri Pirko <jiri at nvidia.com>
+---
+ teamd/teamd.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/teamd/teamd.c b/teamd/teamd.c
+index 9360cbf..b310140 100644
+--- a/teamd/teamd.c
++++ b/teamd/teamd.c
+@@ -1858,7 +1858,7 @@ int main(int argc, char **argv)
+ 		break;
+ 	case DAEMON_CMD_KILL:
+ 		if (daemon_pid_file_is_running() > 0) {
+-			err = daemon_pid_file_kill_wait(SIGTERM, 5);
++			err = daemon_pid_file_kill_wait(SIGTERM, 30);
+ 			if (err)
+ 				teamd_log_warn("Failed to kill daemon: %s",
+ 					       strerror(errno));
diff --git a/package/libteam/Config.in b/package/libteam/Config.in
new file mode 100644
index 0000000000..e44bdeeba8
--- /dev/null
+++ b/package/libteam/Config.in
@@ -0,0 +1,26 @@
+config BR2_PACKAGE_LIBTEAM
+	bool "libteam"
+	depends on BR2_USE_MMU # fork()
+	select BR2_PACKAGE_JANSSON
+	select BR2_PACKAGE_LIBDAEMON
+	select BR2_PACKAGE_LIBNL
+	select BR2_PACKAGE_LIBNL_TOOLS
+	help
+	  The purpose of the Team driver is to provide a mechanism to
+	  team multiple NICs (ports) into one logical one (teamdev) at
+	  L2 layer. The process is called "channel bonding", "Ethernet
+	  bonding", "channel teaming", "link aggregation", etc.
+
+	  Team tries to provide similar functionality as the bonding
+	  driver, however architecturally it is quite different. Team is
+	  modular, userspace driven, very lean and efficient, and it
+	  does have some distinct advantages over bonding. The way Team
+	  is configured differs dramatically from the way bonding is.
+
+	  https://github.com/jpirko/libteam
+
+comment "libnl tools needs a toolchain w/ dynamic library"
+	depends on BR2_STATIC_LIBS
+
+comment "libnl needs a toolchain w/ threads"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS
diff --git a/package/libteam/libteam.hash b/package/libteam/libteam.hash
new file mode 100644
index 0000000000..39d29425d3
--- /dev/null
+++ b/package/libteam/libteam.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  c69f7cf5a98203d66db10e67b396fe325b77a5a9491d1e07e8a07cba3ba841bb  libteam-1.31.tar.gz
+sha256  dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING
diff --git a/package/libteam/libteam.mk b/package/libteam/libteam.mk
new file mode 100644
index 0000000000..2a66345192
--- /dev/null
+++ b/package/libteam/libteam.mk
@@ -0,0 +1,22 @@
+################################################################################
+#
+# libteam
+#
+################################################################################
+
+LIBTEAM_VERSION = 1.31
+LIBTEAM_SITE = $(call github,jpirko,libteam,v$(LIBTEAM_VERSION))
+LIBTEAM_AUTORECONF = YES
+LIBTEAM_LICENSE = LGPL-2.1+
+LIBTEAM_LICENSE_FILES = COPYING
+LIBTEAM_INSTALL_STAGING = YES
+LIBTEAM_DEPENDENCIES = host-pkgconf jansson libdaemon libnl
+
+# The most common team modes, use a custom kernel config to enable more.
+define LIBTEAM_LINUX_CONFIG_FIXUPS
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NET_TEAM)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NET_TEAM_MODE_ACTIVEBACKUP)
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NET_TEAM_MODE_LOADBALANCE)
+endef
+
+$(eval $(autotools-package))
-- 
2.25.1




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