linux_dsm_epyc7002/include
Hangbin Liu 966c37f2d7 ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12
Similiar with ipv6 mcast commit 89225d1ce6 ("net: ipv6: mld: fix v1/v2
switchback timeout to rfc3810, 9.12.")

i) RFC3376 8.12. Older Version Querier Present Timeout says:

   The Older Version Querier Interval is the time-out for transitioning
   a host back to IGMPv3 mode once an older version query is heard.
   When an older version query is received, hosts set their Older
   Version Querier Present Timer to Older Version Querier Interval.

   This value MUST be ((the Robustness Variable) times (the Query
   Interval in the last Query received)) plus (one Query Response
   Interval).

Currently we only use a hardcode value IGMP_V1/v2_ROUTER_PRESENT_TIMEOUT.
Fix it by adding two new items mr_qi(Query Interval) and mr_qri(Query Response
Interval) in struct in_device.

Now we can calculate the switchback time via (mr_qrv * mr_qi) + mr_qri.
We need update these values when receive IGMPv3 queries.

Reported-by: Ying Xu <yinxu@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-29 20:26:06 -07:00
..
acpi pci-v4.20-changes 2018-10-25 06:50:48 -07:00
asm-generic hugetlb: introduce generic version of huge_ptep_get 2018-10-26 16:26:34 -07:00
clocksource
crypto crypto/morus(640,1280) - make crypto_...-algs static 2018-10-05 10:22:48 +08:00
drm drm pull for 4.20-rc1 2018-10-28 17:49:53 -07:00
dt-bindings ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
keys
kvm
linux ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12 2018-10-29 20:26:06 -07:00
math-emu
media media updates for v4.20-rc1 2018-10-29 14:29:58 -07:00
memory
misc
net Pull request for inclusion in 4.20 2018-10-29 09:09:47 -07:00
pcmcia
ras
rdma First merge window pull request 2018-10-26 07:38:19 -07:00
scsi
soc ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
sound ASoC: Updates for v5.0/v4.20 2018-10-22 23:26:37 +02:00
target scsi: target/core: Remove the SCF_COMPARE_AND_WRITE_POST flag 2018-10-16 01:13:35 -04:00
trace Merge branch 'akpm' (patches from Andrew) 2018-10-26 19:33:41 -07:00
uapi media updates for v4.20-rc1 2018-10-29 14:29:58 -07:00
video
xen Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 17:54:58 +01:00