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Date: Thu, 7 Mar 2019 17:57:27 +1300 From: Brodie Greenfield <brodie.greenfield@...iedtelesis.co.nz> To: davem@...emloft.net, stephen@...workplumber.org, kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org Cc: linux-kernel@...r.kernel.org, chris.packham@...iedtelesis.co.nz, luuk.paulussen@...iedtelesis.co.nz, Brodie Greenfield <brodie.greenfield@...iedtelesis.co.nz> Subject: [PATCH 0/2] Make ipmr queue length configurable We want to have some more space in our queue for processing incoming multicast packets, so we can process more of them without dropping them prematurely. It is useful to be able to increase this limit on higher-spec platforms that can handle more items. For the particular use case here at Allied Telesis, we have linux running on our switches and routers, with support for the number of multicast groups being increased. Basically, this queue length affects the time taken to fully learn all of the multicast streams. Changes in v3: - Corrected a v4 to v6 typo. Changes in v2: - Tidy up a few unnecessary bits of code. - Put the sysctl inside ip multicast ifdef. - Included the IPv6 version. Brodie Greenfield (2): ipmr: Make cache queue length configurable ip6mr: Make cache queue length configurable Documentation/networking/ip-sysctl.txt | 16 ++++++++++++++++ include/net/netns/ipv4.h | 1 + include/net/netns/ipv6.h | 1 + net/ipv4/af_inet.c | 1 + net/ipv4/ipmr.c | 4 +++- net/ipv4/sysctl_net_ipv4.c | 7 +++++++ net/ipv6/af_inet6.c | 1 + net/ipv6/ip6mr.c | 4 +++- net/ipv6/sysctl_net_ipv6.c | 7 +++++++ 9 files changed, 40 insertions(+), 2 deletions(-) -- 2.21.0
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