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* kernel: scale nf_conntrack_max more reasonablyVincent Pelletier2022-08-111-1/+0
| | | | | | | | | | | | | | | | | | | | Use the kernel's built-in formula for computing this value. The value applied by OpenWRT's sysctl configuration file does not scale with the available memory, under-using hardware capabilities. Also, that formula also influences net.netfilter.nf_conntrack_buckets, which should improve conntrack performance in average (fewer connections per hashtable bucket). Backport upstream commit for its effect on the number of connections per hashtable bucket. Apply a hack patch to set the RAM size divisor to a more reasonable value (2048, down from 16384) for our use case, a typical router handling several thousands of connections. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> (cherry picked from commit 15fbb916669dcdfcc706e9e75263ab63f9f27c00)
* kernel/modules: relocate teql hotplug from iproute2 to kmod-schedTony Ambardar2021-03-191-0/+23
| | | | | | | | | | | | | | The link equalizer sch_teql.ko of package kmod-sched relies on a hotplug script historically included in iproute2's tc package. In previous discussion [1], consensus was the hotplug script is best located together with the module in kmod-sched, but this change was deferred at the time. Relocate the hotplug script now. This change also simplifies adding a tc variant for minimal size with reduced functionality. [1] https://github.com/openwrt/openwrt/pull/1627#issuecomment-447923636 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
* kernel: remove obsolete kernel version switchesAdrian Schmutzler2020-01-121-5/+0
| | | | | | | | | After kernel 4.9 has been removed, this removes all (now obsolete) kernel version switches that deal with versions before 4.14. Package kmod-crypto-iv is empty now and thus removed entirely. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
* kernel: add kmod-tcp-bbrKeith Wong2018-08-252-0/+9
| | | | | | | | | | | | This adds support for BBR (Bottleneck Bandwidth and RTT) TCP congestion control. Applications (e.g. webservers, VPN client/server) which initiate connections from router side can benefit from this. This provide an easier way for users to use BBR by selecting / installing kmod-tcp-bbr instead of altering kernel config and compiling firmware by themselves. Signed-off-by: Keith Wong <keithwky@gmail.com>
* base-files: move netfilter sysctl defaults to specific kmod packagesMatthias Schiffer2018-04-132-0/+16
Avoid warnings when applying settings for uninstalled kmods. See also FS#1073. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>