Document KERN_PROC_KQUEUE

Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D49163

sysctl.3: document missing oids from kern.proc. node

Reviewed by: olce
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D46823

sysctl.3: document missing fixed oids from the kern. node

Reviewed by: olce
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D46823

sysctl.3: Remove KERN_QUANTUM

It is not present in the sources and 'git log -S KERN_QUANTUM main'
returns nothing.

Reviewed by: olce
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Different

sysctl.3: Remove KERN_QUANTUM

It is not present in the sources and 'git log -S KERN_QUANTUM main'
returns nothing.

Reviewed by: olce
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D46823

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lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

vfs: retire KERN_VNODE

It got disabled in 2003:

commit acb18acfec97aa7fe26ff48f80a5c3f89c9b542d
Author: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Sun Feb 23 18:09:05 2003 +0000

Bracket the k

vfs: retire KERN_VNODE

It got disabled in 2003:

commit acb18acfec97aa7fe26ff48f80a5c3f89c9b542d
Author: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Sun Feb 23 18:09:05 2003 +0000

Bracket the kern.vnode sysctl in #ifdef notyet because it results
in massive locking issues on diskless systems.

It is also not clear that this sysctl is non-dangerous in its
requirements for locked down memory on large RAM systems.

There does not seem to be practical use for it and the disabled routine
does not work anyway.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D39127

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prof: Remove sysctl docs for sysctls that are now gone.

GRPOF based kernel profiling was removed in aa3ea612be36. However, the
docs for the sysctls were not. Remove them belatedly.

Sponsored by: N

prof: Remove sysctl docs for sysctls that are now gone.

GRPOF based kernel profiling was removed in aa3ea612be36. However, the
docs for the sysctls were not. Remove them belatedly.

Sponsored by: Netflix

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sysctl.3: sys/types.h no longer needs to be explicitly included

Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32562

Update man-pages to describe the user.localbase variable added in r367179.

MFC after: 3 days

Introduce nexthop objects and new routing KPI.

This is the foundational change for the routing subsytem rearchitecture.
More details and goals are available in https://reviews.freebsd.org/D24141 .

Introduce nexthop objects and new routing KPI.

This is the foundational change for the routing subsytem rearchitecture.
More details and goals are available in https://reviews.freebsd.org/D24141 .

This patch introduces concept of nexthop objects and new nexthop-based
routing KPI.

Nexthops are objects, containing all necessary information for performing
the packet output decision. Output interface, mtu, flags, gw address goes
there. For most of the cases, these objects will serve the same role as
the struct rtentry is currently serving.
Typically there will be low tens of such objects for the router even with
multiple BGP full-views, as these objects will be shared between routing
entries. This allows to store more information in the nexthop.

New KPI:

struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
uint32_t scopeid, uint32_t flags, uint32_t flowid);
struct nhop_object *fib6_lookup(uint32_t fibnum, const struct in6_addr *dst6,
uint32_t scopeid, uint32_t flags, uint32_t flowid);

These 2 function are intended to replace all all flavours of
<in_|in6_>rtalloc[1]<_ign><_fib>, mpath functions and the previous
fib[46]-generation functions.

Upon successful lookup, they return nexthop object which is guaranteed to
exist within current NET_EPOCH. If longer lifetime is desired, one can
specify NHR_REF as a flag and get a referenced version of the nexthop.
Reference semantic closely resembles rtentry one, allowing sed-style conversion.

Additionally, another 2 functions are introduced to support uRPF functionality
inside variety of our firewalls. Their primary goal is to hide the multipath
implementation details inside the routing subsystem, greatly simplifying
firewalls implementation:

int fib4_lookup_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
uint32_t flags, const struct ifnet *src_if);
int fib6_lookup_urpf(uint32_t fibnum, const struct in6_addr *dst6, uint32_t scopeid,
uint32_t flags, const struct ifnet *src_if);

All functions have a separate scopeid argument, paving way to eliminating IPv6 scope
embedding and allowing to support IPv4 link-locals in the future.

Structure changes:
* rtentry gets new 'rt_nhop' pointer, slightly growing the overall size.
* rib_head gets new 'rnh_preadd' callback pointer, slightly growing overall sz.

Old KPI:
During the transition state old and new KPI will coexists. As there are another 4-5
decent-sized conversion patches, it will probably take a couple of weeks.
To support both KPIs, fields not required by the new KPI (most of rtentry) has to be
kept, resulting in the temporary size increase.
Once conversion is finished, rtentry will notably shrink.

More details:
* architectural overview: https://reviews.freebsd.org/D24141
* list of the next changes: https://reviews.freebsd.org/D24232

Reviewed by: ae,glebius(initial version)
Differential Revision: https://reviews.freebsd.org/D24232

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MFHead@r345677

Add descriptions for sysctls in kern_mib.c and sysctl.3 which lack them.

r343532 noted the difference between "hw.realmem" and "hw.physmem", which I
was previously unaware of. I discovered that neit

Add descriptions for sysctls in kern_mib.c and sysctl.3 which lack them.

r343532 noted the difference between "hw.realmem" and "hw.physmem", which I
was previously unaware of. I discovered that neither sysctl had a
description visible via `sysctl -d', so I found where they were defined and
added suitable descriptions. While in the file, I went ahead and added
descriptions for all the others which lacked them. I also updated sysctl.3
accordingly

Reviewed by: kib, bcr
MFC after: 1 weeks
Sponsored by: Panasas
Differential Revision: https://reviews.freebsd.org/D19007

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Merge ^/head r323559 through r325504.

MFhead@r324884

Add OID for the vm.overcommit sysctl. This makes it possible to remove
one call to sysctl(2) from jemalloc startup code. (That also requires
changes to jemalloc, but I plan to push those to upstream

Add OID for the vm.overcommit sysctl. This makes it possible to remove
one call to sysctl(2) from jemalloc startup code. (That also requires
changes to jemalloc, but I plan to push those to upstream first.)

Reviewed by: kib
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D12745

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Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge ^/head r307736 through r308146.

Fix formatting of tables.

Specifically, use .Ta instead of tabs to separate column entries. While
here fix a few other things:
- Use .Sy for all column headers (previously only the first column hea

Fix formatting of tables.

Specifically, use .Ta instead of tabs to separate column entries. While
here fix a few other things:
- Use .Sy for all column headers (previously only the first column header
was bold)
- Use .Dv to markup constants used for MIB names.
- Use "1234" and "4321" for the byte order descriptions without
thousands separators.
- Mark up header files in the first table with .In.

MFC after: 2 weeks

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Merge from head

Sponsored by: Gandi.net

Merge from head

Sync up with head (up to r288341).

Finish merging from head, messed up in previous attempt

Merge ^/head r287527 through r287679.