commit r30917 ("kernel: bypass all netfilter hooks if the sysctls for that
functionality have been disabled - eliminates the overhead of enabling
CONFIG_BRIDGE_NETFILTER in the kernel config") introduced an optimization
which should reduce/eliminate the overhead for traffic send over bridges on
kernels compiled with CONFIG_BRIDGE_NETFILTER=y. But this optimization
breaks the nf_call_iptables per bridge setting which is more fine grained
than the global sysctl net.bridge.bridge-nf-call-iptables setting.
A test reflecting a real world setup was created to identify if this really
eliminates the overhead and if per-bridge nf_call_iptables could be used in
some setups to increase the throughput. A Qualcomm Atheros QCA9558 based
system with one ethernet and an ath9k wifi 3x3 in HT40 mode was used.
Cables from the AP to the wifi station were used to reduce interference
problems during the tests.
The wlan interface was put in one bridge interface called br-wlan. This
bridge usually contains some more wlan interfaces. The eth0 was put in a
second bridge called br-lan. This usually contains some other privileged
wlan or mesh interfaces. Routing was added between br-lan and br-wlan.
Three kernels were tested:
* (default) OpenWrt kernel for this device
* (brfilter-global) OpenWrt kernel with CONFIG_BRIDGE_NETFILTER=y
* (brfilter-local) OpenWrt kernel with CONFIG_BRIDGE_NETFILTER=y and
without 644-bridge_optimize_netfilter_hooks.patch
The changes to the the netfilter settings of the bridge were done via:
* (brfilter-global) /sbin/sysctl -w net.bridge.bridge-nf-call-iptables=1
* (brfilter-lobal) echo 1 > /sys/class/net/br-lan/bridge/nf_call_iptables
and/or echo 1 > /sys/class/net/br-wan/bridge/nf_call_iptables
A station connected to the wlan0 (AP) interface was used to send traffic to
a PC connected via ethernet. iperf with 3 concurrent transmissions was used
to generate the traffic.
| kernel | br-nf-* global | nf-call* iface | download | upload |
|-----------------|----------------|----------------|----------|----------|
| default | 0 | - | 209 | 268 |
| brfilter-global | 0 | - | 185 | 243 |
| brfilter-local | 0 | - | 187 | 243 |
| brfilter-local | 0 | br-lan | 157 | 226 |
| brfilter-local | 0 | br-lan br-wlan | 139 | 161 |
| brfilter-global | 1 | - | 136 | 162 |
Download/upload results in Mibit/s
It can be seen that the patch doesn't eliminate the overhead. It can also
be seen that the throughput of brfilter-global and brfilter-local with
disabled filtering is the roughly the same. Also the throughput for
brfilter-global and brfilter-local for enabled filtering on all bridges is
roughly the same.
But also the brfilter-local throughput is higher when only br-lan requires
the filtering. This setting would not be possible with
644-bridge_optimize_netfilter_hooks.patch applied and thus can only be
compared with brfilter-global and filtering enabled for all interfaces.
Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
SVN-Revision: 46835
It was corrupted in r38528. The most obvious symptom is repeated messages like this:
Tue Sep 8 08:25:18 2015 kern.warn kernel: [77141.972226] br-lan: received packet on wlan0 with own address as source address
Signed-off-by: Dmitry Ivanov <dima@ubnt.com>
SVN-Revision: 46821
Everything except for blkcipher was already built-in, so make blkcipher
built-in as well.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 46820
Add support for the Netgear Nighthawk X4 R7500 and build
appropariate sysupgrade and factory images.
Known issues:
* 5 GHz wifi not working - there is no quantenna driver
* One of the USB ports is not working
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46796
To use gpio leds as ide leds, we need to enable the trigger to be
included in the kernel.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46795
Add full ubi and sysupgrade images for AP148 and add sysupgrade support
for ipq806x to allow updating the current installation.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46789
Currently, multicast packets from an STA are sent to any according
multicast listener directly through the bridge multicast-to-unicast
feature. Unfortunately, so far this includes the originating STA, too,
resulting in multicast packets being echo'ed back to the originating STA
if it itself is a multicast listener for that group.
This behaviour breaks IPv6 duplicate address detection: An IPv6 Neighbor
Solicitation for IPv6 Duplicate Address Detection is being echo'ed back,
resulting in the host falsely detecting an address collision, which
makes the node unable to claim an IPv6 address and use IPv6 in general.
Mac80211 unfortunately only prevents the echoes for us for multicast
frames. For the multicast frames cast to a unicast destination we'll
need to take care of excluding the originator ourselves.
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
SVN-Revision: 46765
Support for lantiq_svip_be has been removed a while ago, so EASY33016
images weren't buildable anymore. Remove the recipes as well as gzip
compressed kernel support, as EASY33016 was the last user of it.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46760
We register all gpio buttons and leds through DT, so no need to keep
fixes/additions for the platform data based bay.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46753
Add support for Comtrend VR-3026e v1.
The device is almost identical to the Comtrend VR-3025un.
Signed-off-by: Martin Tesar <tesarmar@gmail.com>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46752
/etc/uci-defaults/02_network had a typo, making it generate the wrong
network config.
Closes#20407.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46727
Add an upstream fix for /proc/net/route causing missing routes doing
several continued reads from it.
Only 4.1+ is affected.
Closes#20403.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46726
should improve flash access times. Should be harmless to gnerally
enable regardless if a flash supporting dual reads is attached. In
doubt, spi-nor will just fall back to serial reads.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46725
A call to pskb_may_pull() might reallocate skb->data. Therefore we
should only assign the src-pointer after any potential reallocations.
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 46721
This reverts commit a080e8e1943156168913d0353a2e99d1151102aa.
It did not fix the problem but just hid some symptom. The real issue was
that IGMP/MLD report suppression was not considered for the
multicast-to-unicast feature. A recent netifd which isolates IGMP/MLD
reports between STAs by utilizing AP-isolation and bridge-hairpinning
should have fixed this.
It is perfectly fine to apply multicast-to-unicast to IPv6 Neighbor
Solicitations, too (once that feature is configured correctly).
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 46720
Remove 131-MIPS-export-get_c0_perfcount_int.patch which was already applied
in 4.1.6. This fixes the following build error:
arch/mips/ath79/setup.c:217:77: error: redefinition of '__kstrtab_get_c0_perfcount_int'
arch/mips/ath79/setup.c:211:77: note: previous definition of '__kstrtab_get_c0_perfcount_int' was here
arch/mips/ath79/setup.c:217:350: error: redefinition of '__ksymtab_get_c0_perfcount_int'
arch/mips/ath79/setup.c:211:350: note: previous definition of '__ksymtab_get_c0_perfcount_int' was here
scripts/Makefile.build:258: recipe for target 'arch/mips/ath79/setup.o' failed
Reported-by: swalker
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 46715
