History log of /freebsd/sys/net/route/nhgrp.c (Results 76 – 78 of 78)
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Revision tags: vendor/acpica/20210730, vendor/llvm-project/llvmorg-13-init-16854-g6b2e4c5a58d7, vendor/llvm-project/llvmorg-12.0.1-0-gfed41342a82f, vendor/llvm-project/llvmorg-12.0.1-rc2-0-ge7dac564cd0e, vendor/llvm-project/llvmorg-13-init-16847-g88e66fa60ae5, vendor/less/v590, llvmorg-12.0.1-0-gfed41342a82f, vendor/one-true-awk/1e4bc42c53a1, vendor/device-tree/5.13, vendor/device-tree/5.12, vendor/NetBSD/bmake/20210621, vendor/ena-com/2.4.0, vendor/NetBSD/vis/20210621, llvmorg-12.0.1-rc2-0-ge7dac564cd0e, vendor/acpica/20210604, vendor/nvi/2.2.0-3bbdfe4, vendor/tcsh/6.22.04, vendor/bc/4.0.2, vendor/sqlite3/sqlite-3350500, vendor/less/v581.2, vendor/bc/4.0.1, vendor/openssh/8.6p1, vendor/openssh/8.5p1, vendor/llvm-project/llvmorg-12.0.0-0-gd28af7c654d8, vendor/less/v581, vendor/google/capsicum-test/ea66424d921bb393539b298c108a46edee5c3051, release/13.0.0, upstream/13.0.0, vendor/bc/4.0.0, vendor/acpica/20210331
# 0f30a36d 29-Mar-2021 Alexander V. Chernikov <melifaro@FreeBSD.org>

Rename variables inside nexhtop group consider_resize() code.

No functional changes.

MFC after: 3 days


# 9095dc7d 29-Mar-2021 Alexander V. Chernikov <melifaro@FreeBSD.org>

Fix nexhtop group index array scaling.

The current code has the limit of 127 nexthop groups due to the
wrongly-checked bitmask_copy() return value.

PR: 254303
Reported by: Aleks <a.ivanov at veesp

Fix nexhtop group index array scaling.

The current code has the limit of 127 nexthop groups due to the
wrongly-checked bitmask_copy() return value.

PR: 254303
Reported by: Aleks <a.ivanov at veesp.com>
MFC after: 1 day

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Revision tags: vendor/NetBSD/libedit/2021-03-28, vendor/openssl/1.1.1k, vendor/device-tree/5.11, vendor/NetBSD/libedit/2020-07-10, vendor/libucl/20210314, vendor/bc/3.3.4, vendor/wpa/g9d9b42306541, vendor/tcsh/6.22.03-ceccc7f, bc/3.3.3, vendor/google/capsicum-test/20210302, vendor/dialog/1.3-20210117, vendor/ncurses/6.2-20210220, vendor/arm-optimized-routines/v21.02, vendor/libcxxrt/2021-02-18-8049924686b8414d8e652cbd2a52c763b48e8456, vendor/bc/bc-3.3.0, vendor/llvm-project/llvmorg-12.0.0-rc1-109-gd5d089bf08c9, vendor/llvm-project/llvmorg-12-init-17869-g8e464dd76bef, vendor/openssl/1.1.1j, vendor/google/capsicum-test/7707222b46abe52d18fd4fbb76115ffdb3e6f74b, vendor/openssh/8.4p1, vendor/openssh/8.3p1, vendor/openssh/8.2p1, vendor/openssh/8.1p1, vendor/openzfs/20210210, vendor/subversion/subversion-1.14.1, vendor/NetBSD/bmake/20210206, vendor/unbound/1.13.1, vendor/bc/3.2.6, vendor/atf/20210128, vendor/sqlite3/sqlite-3340100, vendor/tzdata/tzdata2021a, vendor/device-tree/5.10, vendor/device-tree/5.9, vendor/NetBSD/bmake/20210110, vendor/openzfs/20210107, vendor/acpica/20210105, vendor/acpica/20201217, vendor/llvm-project/llvmorg-11.0.1-0-g43ff75f2c3fe, vendor/llvm-project/llvmorg-11.0.1-rc2-0-g43ff75f2c3f, vendor/pnglite/20130820, vendor/terminus/terminus-font-4.48, vendor/tzdata/tzdata2020f, vendor/libarchive/3.5.1, vendor/bc/3.2.4, vendor/lua/5.4.2, vendor/zstd/1.4.8, vendor/tzdata/tzdata2020e, vendor/unbound/1.13.0, vendor/openssl/1.1.1i, vendor/bc/3.2.3, vendor/libarchive/3.5.0, vendor/bc/3.2.0, vendor/NetBSD/bmake/20201117, vendor/ena-com/2.3.0, vendor/ena-com/2.2.1, vendor/acpica/20201113, vendor/NetBSD/bmake/20201101, vendor/unbound/1.12.0, vendor/less/v563, release/12.2.0, upstream/12.2.0, vendor/tzdata/tzdata2020d, vendor/tzdata/tzdata2020c, vendor/openzfs/2.0.0-rc3-gfc5966, vendor/lua/5.3.6, vendor/llvm-project/llvmorg-11.0.0-0-g176249bd673, vendor/acpica/20200925, vendor/tzdata/tzdata2020b
# fedeb08b 03-Oct-2020 Alexander V. Chernikov <melifaro@FreeBSD.org>

Introduce scalable route multipath.

This change is based on the nexthop objects landed in D24232.

The change introduces the concept of nexthop groups.
Each group contains the collection of nexthops

Introduce scalable route multipath.

This change is based on the nexthop objects landed in D24232.

The change introduces the concept of nexthop groups.
Each group contains the collection of nexthops with their
relative weights and a dataplane-optimized structure to enable
efficient nexthop selection.

Simular to the nexthops, nexthop groups are immutable. Dataplane part
gets compiled during group creation and is basically an array of
nexthop pointers, compiled w.r.t their weights.

With this change, `rt_nhop` field of `struct rtentry` contains either
nexthop or nexthop group. They are distinguished by the presense of
NHF_MULTIPATH flag.
All dataplane lookup functions returns pointer to the nexthop object,
leaving nexhop groups details inside routing subsystem.

User-visible changes:

The change is intended to be backward-compatible: all non-mpath operations
should work as before with ROUTE_MPATH and net.route.multipath=1.

All routes now comes with weight, default weight is 1, maximum is 2^24-1.

Current maximum multipath group width is statically set to 64.
This will become sysctl-tunable in the followup changes.

Using functionality:
* Recompile kernel with ROUTE_MPATH
* set net.route.multipath to 1

route add -6 2001:db8::/32 2001:db8::2 -weight 10
route add -6 2001:db8::/32 2001:db8::3 -weight 20

netstat -6On

Nexthop groups data

Internet6:
GrpIdx NhIdx Weight Slots Gateway Netif Refcnt
1 ------- ------- ------- --------------------------------------- --------- 1
13 10 1 2001:db8::2 vlan2
14 20 2 2001:db8::3 vlan2

Next steps:
* Land outbound hashing for locally-originated routes ( D26523 ).
* Fix net/bird multipath (net/frr seems to work fine)
* Add ROUTE_MPATH to GENERIC
* Set net.route.multipath=1 by default

Tested by: olivier
Reviewed by: glebius
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D26449

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