Commit Graph

20887 Commits

Author SHA1 Message Date
Robert Wing
3701068b5d Add a periodic script to backup output generated from gmirror list.
Disabled by default.

PR:             86388
Submitted by:   Miroslav Lachman <000.fbsd@quip.cz>
Reviewed by:    allanjude, gbe
Approved by:    allanjude (mentor)
MFC after:      4 weeks
Event:          July 2020 Bugathon
Differential Revision:  https://reviews.freebsd.org/D25631
2020-11-07 04:15:24 +00:00
John Baldwin
ace4339468 Update copies of ioctl structures to match recent changes in head.
- Update for C99 types and void pointers.
- Update example algorithms to not use removed algorithms.
2020-11-06 23:37:59 +00:00
Robert Wing
eefe831eaf Add a periodic script to backup output generated from zfs list, zfs get,
`zpool list`, and `zpool get` commands.

Disabled by default.

PR:             86388
Submitted by:   Miroslav Lachman <000.fbsd@quip.cz>
Reviewed by:    allanjude, 0mp
Approved by:    allanjude (mentor)
MFC after:      4 weeks
Event:          July 2020 Bugathon
Differential Revision:  https://reviews.freebsd.org/D25638
2020-11-06 22:58:31 +00:00
Mark Johnston
72143e89bb Add qat(4)
This provides an OpenCrypto driver for Intel QuickAssist devices.  The
driver was initially ported from NetBSD and comes with a few
improvements:
- support for GMAC/AES-GCM, AES-CTR and AES-XTS, and support for
  SHA/HMAC-authenticated encryption
- support for detaching the driver
- various bug fixes
- DH895X support

Discussed with:	jhb
MFC after:	3 days
Sponsored by:	Rubicon Communications, LLC (Netgate)
Differential Revision:	https://reviews.freebsd.org/D26963
2020-11-05 15:55:23 +00:00
Mark Johnston
e89004612a refcount(9): Add refcount_release_if_last() and refcount_load()
The former is intended for use in vmspace_exit().  The latter is to
encourage use of explicit loads rather than relying on the volatile
qualifier.  This works better with kernel sanitizers, which can
intercept atomic(9) calls, and makes tricky lockless code easier to read
by not forcing the reader to remember which variables are declared
volatile.

Reviewed by:	kib, mjg, mmel
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D27056
2020-11-04 16:30:30 +00:00
Emmanuel Vadot
4c18532bd0 acpi_video(4): mention that acpi_video should be loaded after any drm driver
When not adhering to this order, brightness sysctl's do not show up on some
laptop.

Submitted by:	 driesm.michiels@gmail.com
Reviewed by:	uqs
Differential Revision:	https://reviews.freebsd.org/D26073
2020-11-04 13:43:34 +00:00
Dimitry Andric
9fa94e1c09 Turn on WITH_LLVM_CXXFILT by default
LLVM's demangler supports more modern C++ constructs such as lambdas and
unnamed types, and is actively maintained. The command line tool is
usable as a drop-in replacement for GNU c++filt, or elftoolchain's
cxxfilt. The latter is still available by using WITHOUT_LLVM_CXXFILT, if
needed.

PR:		250702
MFC after:	2 weeks
2020-11-04 11:23:19 +00:00
Dimitry Andric
07bab4417d Add WITH_LLVM_CXXFILT option to install llvm-cxxfilt as c++filt
Since elftoolchain's cxxfilt is rather far behind on features, and we
ran into several bugs, add an option to use llvm-cxxfilt as an drop-in
replacement.

It supports the same options as elftoolchain cxxfilt, though it doesn't
have support for old ARM (C++ Annotated Reference Manual, not the CPU)
and GNU v2 manglings. But these are irrelevant in 2020.

Note: as we already compile the required libraries as part of libllvm,
this will not add any significant build time either.

PR:		250702
Reviewed by:	emaste, yuri
Differential Revision: https://reviews.freebsd.org/D27071
MFC after:	2 weeks
2020-11-03 19:57:28 +00:00
Mateusz Piotrowski
664eefe222 build.7: Mention etcupdate(8) alongside mergemaster(8)
MFC after:	3 days
2020-11-03 18:13:42 +00:00
Mateusz Piotrowski
23788e6c4a Fix a typo in the description of WITH_DEBUG_PORTS
For each origin listed in WITH_DEBUG_PORTS, the ports framework sets
WITH_DEBUG instead of WITH_DEBUG_PORTS.

MFC after:	3 days
2020-11-03 18:02:02 +00:00
Mateusz Piotrowski
fcdfe01616 Document how to set ports options via make.conf(5)
This patch is based on:
- https://lists.freebsd.org/pipermail/freebsd-ports-announce/2013-June/000062.html
- current content of /usr/ports/Mk/bsd.options.mk

PR:		194306
Reported by:	Daan K. <daanknip__hotmail_com>
MFC after:	2 weeks
2020-11-03 13:26:00 +00:00
Conrad Meyer
2de07e4096 unix(4): Add SOL_LOCAL:LOCAL_CREDS_PERSISTENT
This option is intended to be semantically identical to Linux's
SOL_SOCKET:SO_PASSCRED.  For now, it is mutually exclusive with the
pre-existing sockopt SOL_LOCAL:LOCAL_CREDS.

Reviewed by:	markj (penultimate version)
Differential Revision:	https://reviews.freebsd.org/D27011
2020-11-03 01:17:45 +00:00
Mateusz Guzik
828afdda17 malloc: export kernel zones instead of relying on them being power-of-2
Reviewed by:	markj (previous version)
Differential Revision:	https://reviews.freebsd.org/D27026
2020-11-02 17:38:08 +00:00
Mateusz Piotrowski
758dde0614 Do not document default locations of the OpenBSD and NetBSD ports trees
Our own Ports Collection is not targeting those systems at the moment,
so let's stop documenting bits specific to OpenBSD and NetBSD in the ports
documentation. Especially, that it might bit rot one day.

MFC after:	1 week
2020-11-01 20:54:02 +00:00
Mateusz Piotrowski
76d2af50b5 Document how to use sudo for SU_CMD
It is rather common for the ports users to replace su(1) with sudo(8)
within the SU_CMD variable. Let's document it in the manual page (so far
it's been hidden in a comment within bsd.commands.mk).

MFC after:	2 weeks
2020-11-01 17:27:48 +00:00
Hans Petter Selasky
c77bfaa750 Implement the USB_GET_DEVICEINFO ioctl(2) for uhid(4).
Submitted by:		pedro martelletto <pedro@ambientworks.net>
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-31 21:53:23 +00:00
Mateusz Piotrowski
eb7f380f12 beinstall.sh: Use bectl instead of beadm by default
This patch also introduces an environment variable BE_UTILITY,
which can be used to specify the utility to use for managing
ZFS boot environments (which can be either bectl or beadm).

While here, fix some typos in the manual page and
remove beadm from section "SEE ALSO".

Reviewed by:	bcr, kevans, rpokala
Approved by:	will
Differential Revision:	https://reviews.freebsd.org/D21111
2020-10-30 09:40:55 +00:00
Warner Losh
b4e4f070ea Note that sys/systm.h is special too
If you need / want to includerd sys/systm.h, it has to be just after
param.h/types.h. Document this existing practice. Not all kernel files
include systm.h, but when you do, it should be done out of order.

Reviewed by: vangyzen, kib, emaste
Differential Review: https://reviews.freebsd.org/D26981
2020-10-28 21:09:56 +00:00
Edward Tomasz Napierala
bce7ee9d41 Drop "All rights reserved" from all my stuff. This includes
Foundation copyrights, approved by emaste@.  It does not include
files which carry other people's copyrights; if you're one
of those people, feel free to make similar change.

Reviewed by:	emaste, imp, gbe (manpages)
Differential Revision:	https://reviews.freebsd.org/D26980
2020-10-28 13:46:11 +00:00
Li-Wen Hsu
c0492b268a Add FreeBSD 12.2 2020-10-28 02:30:44 +00:00
Gordon Bergling
de7b5f1c52 Use my FreeBSD.org mail address in man pages I have written
MFC after:	3 days
2020-10-27 18:30:43 +00:00
Ryan Moeller
73577bf01d flua: Add a libjail module
libjail is pretty small, so it makes for a good proof of concept demonstrating
how a system library can be wrapped to create a loadable Lua module for flua.

* Introduce 3lua section for man pages
* Add libjail module

Reviewed by:	kevans, manpages
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D26080
2020-10-24 17:08:59 +00:00
Mark Johnston
eb3b7cece2 Add some missing nv(9) MLINKS
MFC after:	1 week
2020-10-23 14:25:48 +00:00
Mark Johnston
6660ef6e91 ntb: Add Intel Xeon Gen3 support
The NTB hardware starting with Skylake has some changes to the register
map and the doorbell interface.  Add a new NTB_XEON_GEN3 device type and
use it to conditionalize driver logic that differs from the existing
Xeon code.

Reviewed by:	vangyzen
Discussed with:	cem, Bret Ketchum <Bret.Ketchum@dell.com>
MFC after:	1 month
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26683
2020-10-23 14:16:52 +00:00
Gordon Bergling
7aebfe657a socket(9): Remove duplicate word 'is is'
MFC after:	1 week
2020-10-22 18:45:49 +00:00
Gleb Smirnoff
1f7a058f02 Fix typo 2020-10-22 18:00:07 +00:00
Hans Petter Selasky
a92c4bb62a Add support for IP over infiniband, IPoIB, to lagg(4). Currently only
the failover protocol is supported due to limitations in the IPoIB
architecture. Refer to the lagg(4) manual page for how to configure
and use this new feature. A new network interface type,
IFT_INFINIBANDLAG, has been added, similar to the existing
IFT_IEEE8023ADLAG .

ifconfig(8) has been updated to accept a new laggtype argument when
creating lagg(4) network interfaces. This new argument is used to
distinguish between ethernet and infiniband type of lagg(4) network
interface. The laggtype argument is optional and defaults to
ethernet. The lagg(4) command line syntax is backwards compatible.

Differential Revision:	https://reviews.freebsd.org/D26254
Reviewed by:		melifaro@
MFC after:		1 week
Sponsored by:		Mellanox Technologies // NVIDIA Networking
2020-10-22 09:47:12 +00:00
Andrey V. Elsukov
7ec2f6bce5 Add dtrace SDT probe ipfw:::rule-matched.
It helps to reduce complexity with debugging of large ipfw rulesets.
Also define several constants and translators, that can by used by
dtrace scripts with this probe.

Reviewed by:	gnn
Obtained from:	Yandex LLC
MFC after:	2 weeks
Sponsored by:	Yandex LLC
Differential Revision:	https://reviews.freebsd.org/D26879
2020-10-21 15:01:33 +00:00
John Baldwin
ba610be90a Add a kernel crypto driver using assembly routines from OpenSSL.
Currently, this supports SHA1 and SHA2-{224,256,384,512} both as plain
hashes and in HMAC mode on both amd64 and i386.  It uses the SHA
intrinsics when present similar to aesni(4), but uses SSE/AVX
instructions when they are not.

Note that some files from OpenSSL that normally wrap the assembly
routines have been adapted to export methods usable by 'struct
auth_xform' as is used by existing software crypto routines.

Reviewed by:	gallatin, jkim, delphij, gnn
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D26821
2020-10-20 17:50:18 +00:00
Navdeep Parhar
ae5da4e14d cxgbe(4): Updates to the drop features from r366532.
MFC after:	1 week
Sponsored by:	Chelsio Communications
2020-10-19 21:11:49 +00:00
John Baldwin
ecedef531b Mark asymmetric cryptography via OCF deprecated for 14.0.
Only one MIPS-specific driver implements support for one of the
asymmetric operations.  There are no in-kernel users besides
/dev/crypto.  The only known user of the /dev/crypto interface was the
engine in OpenSSL releases before 1.1.0.  1.1.0 includes a rewritten
engine that does not use the asymmetric operations due to lack of
documentation.

Reviewed by:	cem, markj
MFC after:	1 week
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D26810
2020-10-19 18:21:41 +00:00
Warner Losh
618cdd8964 Add more explicit instructions about updating motd
Not that you can regenerate the motd by editing motd.template and
running 'service motd restart' rather than rebooting.

Small wordsmithing by me, and updated the example from FreeBSD 2.1.6.1
release to 12.1 release.

Submitted by: Dan Mack
2020-10-19 01:16:39 +00:00
Edward Tomasz Napierala
d22ff249d9 Make g_attach() return ENXIO for orphaned providers; update various
classes to add missing error checking.

Reviewed by:	imp
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26658
2020-10-18 16:24:08 +00:00
Xin LI
fa42a0bfa4 Update arcmsr(4) to 1.50.00.00:
Add support for ARC-1886, NVMe/SAS/SATA controller.

Many thanks to Areca for continuing to support FreeBSD.

Submitted by:   黃清隆 <ching2048 areca com tw>
MFC after:      2 weeks
2020-10-16 15:55:06 +00:00
Marcin Wojtas
7e89ae49db Prepare crypto framework for IPsec ESN support
This permits requests (netipsec ESP and AH protocol) to provide the
IPsec ESN (Extended Sequence Numbers) in a separate buffer.

As with separate output buffer and separate AAD buffer not all drivers
support this feature. Consumer must request use of this feature via new
session flag.

Submitted by:           Grzegorz Jaszczyk <jaz@semihalf.com>
                        Patryk Duda <pdk@semihalf.com>
Reviewed by:            jhb
Differential revision:  https://reviews.freebsd.org/D24838
Obtained from:          Semihalf
Sponsored by:           Stormshield
2020-10-16 11:06:33 +00:00
Andrey V. Elsukov
6952c3e1ac Implement SIOCGIFALIAS.
It is lightweight way to check if an IPv4 address exists.

Submitted by:	Roy Marples
Reviewed by:	gnn, melifaro
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26636
2020-10-14 09:22:54 +00:00
Brooks Davis
3f8d55c617 Remove --ld-path=* from _LDFLAGS
It makes no sense to pass --ld-path to direct ${LD} invocations.

This was missed in r366270 due to not doing a clean build.
2020-10-13 20:04:13 +00:00
John Baldwin
4ef6ea38fc Add a <machine/fpu.h> for i386 that includes <machine/npx.h>.
arm64 has a similar wrapper.  This permits defining <machine/fpu.h> as
the standard header for fpu_kern_*.

Reviewed by:	kib
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D26753
2020-10-13 17:26:12 +00:00
Alex Richardson
2cef3afd7b Stop using -O instead of -O2 for MIPS
Until clang 11 that was equivalent to -O2, but clang changed it to -O1 so
generated MIPS code will now be unnecessarily slow. It also removes a weird
special case from sys.mk.
This is similar to the D26471 change for debug kernels and should not change
anything since everything was previously building MIPS code at -O2 until the
clang 11 update.

Reviewed By:	trasz
Differential Revision: https://reviews.freebsd.org/D26749
2020-10-13 08:14:33 +00:00
Warner Losh
085e62eb4f Document /boot/config as well as /boot.config
Add a note about /boot/config being an alternative location for this
information. Correct description of -P.
2020-10-13 05:39:43 +00:00
Alex Richardson
c3d67d6cf0 Don't use install(1) for the library symlinks in the build directory
It appears this was changed from ln to use install in rS245752. I noticed
this because my buildenv was setting INSTALL=install -U -M //METALOG
and then these links fail to be created with the following error:
install: open //METALOG: Permission denied

Reviewed By:	brooks
Differential Revision: https://reviews.freebsd.org/D26618
2020-10-12 10:42:19 +00:00
Gordon Bergling
5be4c726f0 man5: Fix a few typos spotted by igor
- fstab(5): conjuction -> conjunction
- mount.conf(5): repeated 'the'
- periodic.conf(5): Partion ->  Partition

MFC after:	1 week
2020-10-10 14:20:07 +00:00
Gordon Bergling
2090cb10b3 sigevent(3): Fix a typo
- asychronous -> asynchronous

MFC after:	1 week
2020-10-10 12:06:39 +00:00
Gordon Bergling
15a478b3e8 dtrace_audit(4): Fix a typo
- asynchonously -> asynchronously

MFC after:	1 week
2020-10-10 12:05:54 +00:00
Gordon Bergling
3d265fce43 Fix a few mandoc issues
- skipping paragraph macro: Pp after Sh
- sections out of conventional order: Sh EXAMPLES
- whitespace at end of input line
- normalizing date format
2020-10-09 19:12:44 +00:00
Gordon Bergling
b56d7f9663 bpf(4): Update the man page to reflect reality
PR:		131918
Submitted by:	guy at alum dot mit dot edu
Reviewed by:	gnn, gbe
Approved by:	gnn
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25993
2020-10-09 15:50:50 +00:00
Gordon Bergling
812b09037d Fix a few mandoc issues
- whitespace at end of input line
- skipping paragraph macro: Pp at the end of Sh
- new sentence, new line
- consider using OS macro: Fx
- AUTHORS section without An macro
- skipping paragraph macro: Pp before Ss
2020-10-09 15:14:19 +00:00
Navdeep Parhar
77af2b2c85 cxgbe(4): knobs to drop various kinds of undesirable frames on ingress.
These kind of drops come for free in the sense that they do not use the
filter TCAM or any other resource that wouldn't normally be used during
rx.  Frames dropped by the hardware get counted in the MAC's rx stats
but are not delivered to the driver.

hw.cxgbe.attack_filter
Set to 1 to enable the "attack filter".  Default is 0.  The attack
filter will drop an incoming frame if any of these conditions is true:
src ip/ip6 == dst ip/ip6; tcp and src/dst ip is not unicast; src/dst ip
is loopback (127.x.y.z); src ip6 is not unicast; src/dst ip6 is loopback
(::1/128) or unspecified (::/128); tcp and src/dst ip6 is mcast
(ff00::/8).

hw.cxgbe.drop_ip_fragments
Set to 1 to drop all incoming IP fragments.  Default is 0.  Note that
this drops valid frames.

hw.cxgbe.drop_pkts_with_l2_errors
Set to 1 to drop incoming frames with Layer 2 length or checksum errors.
Default is 1.

hw.cxgbe.drop_pkts_with_l3_errors
Set to 1 to drop incoming frames with IP version, length, or checksum
errors.  Default is 0.

hw.cxgbe.drop_pkts_with_l4_errors
Set to 1 to drop incoming frames with Layer 4 length, checksum, or other
errors.  Default is 0.

MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2020-10-08 10:00:13 +00:00
John-Mark Gurney
c2ebbb5572 add the FILESYSTEMS placeholder and note that it's the default early_late_divider 2020-10-06 22:53:11 +00:00
Gordon Bergling
c52a3a8c90 intro(3): Update the list of included libraries
- Extend the list of main libraries of section 3
- Extend the library functions that are included in the libc

MFC after:	2 weeks
Submitted by:	Naga Chaitanya Vellanki <pnagato at protonmail dot com>
Approved by:	gbe
Differential Revision:	https://reviews.freebsd.org/D26476
2020-10-06 10:51:47 +00:00
Li-Wen Hsu
194d562872 Make capsicum test cases fine-grained
Add a wrapping script to use ATF to run tests written with Googletest
one by one. This helps locating and tracking the failing case in CI easier.

This is a temporarily solution while Googletest support in Kyua is developing.
We will revert this once Kyua+Googletest integration is ready.

Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25896
2020-10-06 06:45:52 +00:00
Jakub Wojciech Klama
100353cfbf Add virtio-9p (aka VirtFS) filesystem sharing to bhyve.
VirtFS allows sharing an arbitrary directory tree between bhyve virtual
machine and the host. Current implementation has a fairly complete support
for 9P2000.L protocol, except for the extended attribute support. It has
been verified to work with the qemu-kvm hypervisor.

Reviewed by:	rgrimes, emaste, jhb, trasz
Approved by:	trasz (mentor)
MFC after:	1 month
Relnotes:	yes
Sponsored by:	Conclusive Engineering (development), vStack.com (funding)
Differential Revision:	https://reviews.freebsd.org/D10335
2020-10-03 19:05:13 +00:00
Vincenzo Maffione
c97d2c8ae8 netmap: minor documentation fix
Also update date of pkt-gen.8 (not done in r366387).

Submitted by:	milosz.kaniewski@gmail.com
MFC after:	3 days
2020-10-03 09:36:33 +00:00
Emmanuel Vadot
675aae732d Add backlight subsystem
This is a simple subsystem that allow drivers to register as a backlight.
Each backlight creates a device node under /dev/backlight/backlightX and
an alias based on the name provided.

Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26250
2020-10-02 18:18:01 +00:00
Brooks Davis
78380908e5 Hoist comment on fixup of ld path
Reported by:	jrtc27
Differential Revision:	https://reviews.freebsd.org/D26591
2020-09-29 23:48:05 +00:00
Brooks Davis
17b8b8fb5f Prefer --ld-path=/path/to/ld on clang >= 12
Clang 12 warns about passing a path to -fuse-ld and -Werror makes that
an error preventing building world without this change.

Reviewed by:	arichardson, emaste
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26591
2020-09-29 22:30:15 +00:00
Ed Maste
c1aedfcbd9 add SIOCGIFDATA ioctl
For interfaces that do not support SIOCGIFMEDIA (for which there are
quite a few) the only fallback is to query the interface for
if_data->ifi_link_state.  While it's possible to get at if_data for an
interface via getifaddrs(3) or sysctl, both are heavy weight mechanisms.

SIOCGIFDATA is a simple ioctl to retrieve this fast with very little
resource use in comparison.  This implementation mirrors that of other
similar ioctls in FreeBSD.

Submitted by:	Roy Marples <roy@marples.name>
Reviewed by:	markj
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D26538
2020-09-28 16:54:39 +00:00
Gordon Bergling
f6393bcd78 tcp(4): Add a reference for tcp_bbr(4) man page 2020-09-24 19:59:29 +00:00
Gordon Bergling
fb929f78fb Add missing file (tcp_bbr.4) from r366127
Reviewed by:	bcr
Approved by:	bcr
Differential Revision:	https://reviews.freebsd.org/D24915
2020-09-24 19:35:34 +00:00
Gordon Bergling
a7869854ed Add a manual page for TCP BBR
Reviewed by:	bcr
Approved by:	bcr
Differential Revision:	https://reviews.freebsd.org/D24915
2020-09-24 19:33:48 +00:00
Gordon Bergling
194498e9b5 crypto_buffer(9): Add a HISTORY and a AUTHORS section
Reviewed by:	jhb
Approved by:	jhb
Differential Revision:	https://reviews.freebsd.org/D26487
2020-09-24 16:50:14 +00:00
Ed Maste
dbe522e6ca mgb.4: add note about experimental status
Also remove HISTORY section until it is connected to the build.
2020-09-24 14:42:22 +00:00
Stefan Eßer
192d7246a7 Add danish translations provided by GitHub user scootergriesen
These translations did already exist in the index files for "vt".

Obtained from:	https://github.com/scootergrisen/freebsd/
2020-09-24 09:06:04 +00:00
Li-Wen Hsu
ea91248c6d Regen after r365903
Sponsored by:	The FreeBSD Foundation
2020-09-24 08:51:23 +00:00
Stefan Eßer
68c8c1a705 Slightly modify wording to better match nearby entries.
MFC after:	3 days
2020-09-24 06:12:57 +00:00
Warner Losh
4d1bad3c62 Remove stray lines
I snagged the license boiler plate. Fix that. also, it's spelled .Va
not .Vn. Plus " quoting issues.

Noticed by: rgrimes, xtouqh at hotmail dot com
2020-09-23 22:49:27 +00:00
Brandon Bergren
1bdb1aa426 arch(7): PowerPC64LE architecture definition
Document the new powerpc64le arch's initial specifications.

Certain things are subject to change while this is experimental. The most
likely change is that long double may switch to quad, dependent on POWER8
emulation assistance for __float128 being set up in the compiler (as
POWER8 does not have IEEE-compatible 128-bit hardware float, unlike POWER9.)

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 03:12:58 +00:00
Brandon Bergren
b75abea4d0 [PowerPC64LE] Set up powerpc.powerpc64le architecture
This is the initial set up for PowerPC64LE.

The current plan is for this arch to remain experimental for FreeBSD 13.

This started as a weekend learning project for me and kinda snowballed from
there.

(More to follow momentarily.)

Reviewed by:	imp (earlier version), emaste
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D26399
2020-09-22 23:49:30 +00:00
Konstantin Belousov
2be2e7e549 Remove stray line 2020-09-22 23:39:14 +00:00
Warner Losh
6b1d211602 Add devctl_notify(9) man page
Document the calls to send messages to userland via devctl.
devctl_notify will create a message for the specified system,
subsystem and type, optionally adding additional information.

Reviewed by: bcr
Differential Revision: https://reviews.freebsd.org/D26520
2020-09-22 23:02:01 +00:00
Warner Losh
a5dca7c7e4 Document quoting requirements for the devctl protocol
Belatedly document the quoting requirements for the devctl protocol. I
thought they'd been previously documented.

Also, while I'm here, make igor happy.

Reviewed by: bcr
Differential Revision: https://reviews.freebsd.org/D26520
2020-09-22 23:01:57 +00:00
Warner Losh
c6d67028c7 Document devctl_safe_quote_sb
This routine centralizes the knowledge needed for properly quoting
'value' in all key="value" items that appear in devctl messages.

Reviewed by: bcr
Differential Revision: https://reviews.freebsd.org/D26520
2020-09-22 23:01:53 +00:00
Warner Losh
a329c23eb7 Add a devctl_process_running man page.
Reviewed by: bcr
Differential Revision: https://reviews.freebsd.org/D26520
2020-09-22 23:01:44 +00:00
Christian Brueffer
d458747eb2 Fix a bunch of mdoc issues found by mandoc -Tlint. 2020-09-22 21:13:26 +00:00
Navdeep Parhar
30e3f2b4ea cxgbe(4): let the PF driver use VM work requests for transmit.
This allows the PF interfaces to communicate with the VF interfaces over
the internal switch in the ASIC.  Fix the GL limits for VM work requests
while here.

MFC after:	3 days
Sponsored by:	Chelsio Communications
2020-09-22 04:16:40 +00:00
D Scott Phillips
26a3bf76c9 bitset: expand bit index type to long
An upcoming patch to use the bitset macros for tracking vm page
dump information could conceivably need more than INT_MAX bits.
Expand the bit type to long so that the extra range is available
on 64-bit platforms where it would most likely be needed.

CPUSET_COUNT and DOMAINSET_COUNT are also modified to remain of
type `int`.

Reviewed by:	kib, markj
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26190
2020-09-21 22:19:12 +00:00
Hans Petter Selasky
81a9354828 Add example to ng_bpf(4) showing how ng_bpf(4) can be used to prevent spoofing.
Differential Revision:	https://reviews.freebsd.org/D26488
MFC after:	1 week
Reviewed by:	pi, bcr (manpages)
Submitted by:	lutz_donnerhacke.de (Lutz Donnerhacke)
Sponsored by:	Mellanox Technologies // NVIDIA Networking
2020-09-21 18:17:01 +00:00
Mitchell Horne
cba446e2c2 Add getenv(9) boolean parsing functions
This adds the getenv_bool() function, to parse a boolean value from a
kernel environment variable or tunable. This works for traditional
boolean values like "0" and "1", and also "true" and "false"
(case-insensitive). These semantics do not yet apply to sysctls declared
using SYSCTL_BOOL with CTLFLAG_TUN (they still only parse 1 and 0).

Also added are two wrapper functions, getenv_is_true() and
getenv_is_false(). These are slightly simpler for callers wishing to
perform a single check of a configuration variable.

Reviewed by:	jhb (slightly earlier version)
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26270
2020-09-21 15:24:44 +00:00
Toomas Soome
e307eb94ae loader: zfs should support bootonce an nextboot
bootonce feature is temporary, one time boot, activated by
"bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag.

By default, the bootonce setting is reset on attempt to boot and the next
boot will use previously active BE.

By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will
be set permanently active.

bootonce dataset name is recorded in boot pool labels, bootenv area.

in case of nextboot, the nextboot_enable boolean variable is recorded in
freebsd:nvstore nvlist, also stored in boot pool label bootenv area.
On boot, the loader will process /boot/nextboot.conf if nextboot_enable
is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf
processing on next boot.

bootonce and nextboot features are usable in both UEFI and BIOS boot.

To use bootonce/nextboot features, the boot loader needs to be updated on disk;
if loader.efi is stored on ESP, then ESP needs to be updated and
for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated
(gpart or other tools).

At this time, only lua loader is updated.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25512
2020-09-21 09:01:10 +00:00
Gordon Bergling
918d5f5908 diskless(8): Correct Sections out of conventional order error
Event:		September 2020 Bugathon
MFC after:	1 week
2020-09-19 15:10:17 +00:00
Gordon Bergling
182ae6ca30 crypto(7): Correct Sections out of conventional order error
Event:		September 2020 Bugathon
MFC after:	1 week
2020-09-19 15:08:57 +00:00
Michal Meloun
95a85c125d Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions.
One problem with the bus_space_read_N() and bus_space_write_N() family of
functions is that they provide no protection against exceptions which can
occur when no physical hardware or device responds to the read or write
cycles. In such a situation, the system typically would panic due to a
kernel-mode bus error. The bus_space_peek_N() and bus_space_poke_N() family
of functions provide a mechanism to handle these exceptions gracefully
without the risk of crashing the system.

Typical example is access to PCI(e) configuration space in bus enumeration
function on badly implemented PCI(e) root complexes (RK3399 or Neoverse
N1 N1SDP and/or access to PCI(e) register when device is in deep sleep state.

This commit adds a real implementation for arm64 only. The remaining
architectures have bus_space_peek()/bus_space_poke() emulated by using
bus_space_read()/bus_space_write() (without exception handling).

MFC after:	1 month
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D25371
2020-09-19 11:06:41 +00:00
Mark Johnston
7afab8a67e Install library symlinks atomically.
As we do for shared library binaries, pass -S to install(1) when
installing symlinks.  Doing so helps avoid transient failures when
libraries are being reinstalled, which seems to be the root cause of
spurious libgcc_s.so link failures during CI builds.

PR:		233769
Reviewed by:	emaste
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26453
2020-09-18 19:03:34 +00:00
Kyle Evans
fe815331bb build: provide a default WARNS for all in-tree builds
The current default is provided in various Makefile.inc in some top-level
directories and covers a good portion of the tree, but doesn't cover parts
of the build a little deeper (e.g. libcasper).

Provide a default in src.sys.mk and set WARNS to it in bsd.sys.mk if that
variable is defined. This lets us relatively cleanly provide a default WARNS
no matter where you're building in the src tree without breaking things
outside of the tree.

Crunchgen has been updated as a bootstrap tool to work on this change
because it needs r365605 at a minimum to succeed. The cleanup necessary to
successfully walk over this change on WITHOUT_CLEAN builds has been added.

There is a supplemental project to this to list all of the warnings that are
encountered when the environment has WARNS=6 NO_WERROR=yes:
https://warns.kevans.dev -- this project will hopefully eventually go away
in favor of CI doing a much better job than it.

Reviewed by:	emaste, brooks, ngie (all earlier version)
Reviewed by:	emaste, arichardson (depend-cleanup.sh change)
Differential Revision:	https://reviews.freebsd.org/D26455
2020-09-18 17:17:46 +00:00
Gordon Bergling
16694347a9 crypto_buffer(9): Bring back the reference for bus_dma(9)
The reference was accidentally deleted in r365855.

Reported by:	jhb
Pointy hat to:	gbe
2020-09-18 11:04:16 +00:00
Navdeep Parhar
a4a4ad2dd9 cxgbe(4): add support for stateless offloads for VXLAN traffic.
Hardware assistance includes checksumming (tx and rx), TSO, and RSS on
the inner traffic in a VXLAN tunnel.

Relnotes:	Yes
Sponsored by:	Chelsio Communications
2020-09-18 03:01:47 +00:00
Navdeep Parhar
b092fd6c97 if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS.
This lets a VXLAN pseudo-interface take advantage of hardware checksumming (tx
and rx), TSO, and RSS if the NIC is capable of performing these operations on
inner VXLAN traffic.

A VXLAN interface inherits the capabilities of its vxlandev interface if one is
specified or of the interface that hosts the vxlanlocal address. If other
interfaces will carry traffic for that VXLAN then they must have the same
hardware capabilities.

On transmit, if_vxlan verifies that the outbound interface has the required
capabilities and then translates the CSUM_ flags to their inner equivalents.
This tells the hardware ifnet that it needs to operate on the inner frame and
not the outer VXLAN headers.

An event is generated when a VXLAN ifnet starts. This allows hardware drivers to
configure their devices to expect VXLAN traffic on the specified incoming port.

On receive, the hardware does RSS and checksum verification on the inner frame.
if_vxlan now does a direct netisr dispatch to take full advantage of RSS. It is
not very clear why it didn't do this already.

Future work:
Rx: it should be possible to avoid the first trip up the protocol stack to get
the frame to if_vxlan just so it can decapsulate and requeue for a second trip
up the stack. The hardware NIC driver could directly call an if_vxlan receive
routine for VXLAN traffic instead.

Rx: LRO. depends on what happens with the previous item. There will have to to
be a mechanism to indicate that it's time for if_vxlan to flush its LRO state.

Reviewed by:	kib@
Relnotes:	Yes
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D25873
2020-09-18 02:37:57 +00:00
Gordon Bergling
60365150ae arch(7): Some markup fixes
- no blank before trailing delimiter

MFC after:	3 days
2020-09-17 21:24:11 +00:00
Gordon Bergling
9c946dc379 man(9): Some markup fixes
- whitespace at end of input line
- skipping paragraph macro: Pp after Sh

MFC after:	3 days
2020-09-17 21:08:11 +00:00
Gordon Bergling
8713e3ccba pwmbus(9): some markup fixes
- whitespace at end of input line

MFC after:	3 days
2020-09-17 20:55:42 +00:00
Gordon Bergling
ac81581df3 mbuf(9): Some markup fixes
- whitespace at end of input line
- no blank before trailing delimiter: Dv MJUM16BYTES

MFC after:	3 days
2020-09-17 20:53:24 +00:00
Gordon Bergling
fade09c8ac crypto_buffer(9): Sort the SEE ALSO section
MFC after:	3 days
2020-09-17 20:50:02 +00:00
Gordon Bergling
d2527db87a VOP_INACTIVE(9): Remove trailing whitespace
MFC after:	3 days
2020-09-17 20:42:41 +00:00
Gordon Bergling
6f563a6f49 domainset(9): Some markup fixes
- new sentence, new line
- whitespace at end of input line

MFC after:	3 days
2020-09-17 20:37:54 +00:00
Gordon Bergling
27f21fadda rmlock(9): Some markup fixes
- new sentence, new line

MFC after:	3 days
2020-09-17 20:32:10 +00:00
Gordon Bergling
f2f6054441 bus_dma(9): Some markup fixes
- new sentence, new line
- no blank before trailing delimiter
- whitespace at end of input line

MFC after:	3 days
2020-09-17 20:25:31 +00:00
Alex Richardson
0e1e341b48 Stop using lorder and ranlib when building libraries
Use of ranlib or lorder is no longer necessary with current linkers
(probably anything newer than ~1990) and ar's ability to create an object
index and symbol table in the archive.
Currently the build system uses lorder+tsort to sort the .o files in
dependency order so that a single-pass linker can use them. However,
we can use the -s flag to ar to add an index to the .a file which makes
lorder unnecessary.
Running ar -s is equivalent to running ranlib afterwards, so we can also
skip the ranlib invocation.

Similarly, we don't have to pass the .o files for shared libraries in
dependency order since both ld.bfd and ld.lld will correctly resolve
references between the .o files.

This removes many fork()+execve calls for each library so should speed up
builds a bit. Additionally lorder.sh uses a regular expression that is not
supported by the macOS libc or glibc and results in many warnings when
cross-building (see D25989).

There is one functional change: lorder.sh removed duplicated .o files
from the linker command line which now no longer happens. I fixed the duplicates
in the base system in r364649. I also checked the ports tree for uses of
bsd.lib.mk and found one duplicate source file which I fixed in r548168.
Most ports use CMake/autotools rather than bsd.lib.mk but if this breaks any
ports that I missed in my search please let me know.

Avoiding the shell script actually speeds up the linking step noticeably: I
measured how long it takes to rebuild the .a and .so files for lib/libc using a
basic benchmark: `rm $LIBC_OBJDIR/*.so* $LIBC_OBJDIR/*.a* && /usr/bin/time make -DWITHOUT_TESTS -s > /dev/null`
Without this change ~4.5 seconds and afterwards ~3.1 seconds.
Looking at truss -cf output we can see that the number fork() system
calls goes down from 27 to 12 (and the speedup while tracing is more
noticeable: 81 seconds -> 65 seconds).

See also https://www.gnu.org/software/coreutils/manual/html_node/tsort-background.html
for some more background:
This whole procedure has been obsolete since about 1980, because Unix
archives now contain a symbol table (traditionally built by ranlib, now
generally built by ar itself), and the Unix linker uses the symbol table
to effectively make multiple passes over an archive file.

Or alternatively https://www.unix.com/man-page/osf1/1/lorder/:
The lorder command is essentially obsolete.  Use the following command in
its place: % ar -ts file.a

Reviewed By:	 emaste, imp, dim
Differential Revision: https://reviews.freebsd.org/D26044
2020-09-17 15:07:25 +00:00
Baptiste Daroussin
dfe3db06bb Update to 2020.08.19
MFC after:	3 days
2020-09-16 07:30:18 +00:00
Stefan Eßer
160ea95362 src.conf.5: regen after r365753 2020-09-15 16:38:44 +00:00
Brandon Bergren
1d2a0dce33 [PowerPC] Remove obsolete MK_LOADER_FORCE_LE
In D12421, the ability to compile stand/ in little-endian was added, with the
intention to extend loader.kboot to run in Petitboot.

However, no further work was done, as the kernel then gained self-execution
capabilities as Petitboot was taught to load FreeBSD kernels directly.

The FreeBSD installer on powerpc64 (on POWER8 and POWER9) uses
/boot/etc/kboot.conf instead of loader.

As this option does nothing but cause stand/ to be miscompiled and actively
causes confusion, remove it.

(I have a functioning petitboot loader in my local tree, however, it turned
out to be quite inconvient to use due to the current petitboot plugin design
so I put it on hold.)

Reviewed by:	emaste, imp, jhibbits
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D26430
2020-09-15 04:22:28 +00:00
Andrew Turner
2a6803de1c Use MACHINE_CPUARCH when checking for arm64
Use MACHINE_CPUARCH with arm64 (aarch64) when we build code that could run
on any 64-bit Arm instruction set. This will simplify checks in downstream
consumers targeting prototype instruction sets.

The only place we check for MACHINE_ARCH == aarch64 is when building the
device tree blobs. As these are targeting current generation ISAs.

Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D26370
2020-09-14 16:12:28 +00:00
Scott Long
e18eb7b14e Update bus_dma.9 for the expanded template API. Add some
clarifying language about the operation of parent tags in templates.
2020-09-14 06:26:36 +00:00
Scott Long
d58ff30aca Improve the documenation for bus_dma templates. Also add notes to
make it clear that filters may not work correctly and that their use
is deprecated.

MFC after:	3 days
2020-09-11 19:45:26 +00:00
Gordon Bergling
e6ca69017c Improvements for the src.conf(5) and build(7) man pages
PR:		203863 (based on)
Submitted by:	Russell Haley <russ dot haley at gmail dot com>
Reviewed by:	bcr, imp
Approved by:	imp
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26343
2020-09-11 18:09:49 +00:00
Rainer Hurling
500e0f0833 Add author entity for rhurlin, part 2
Forgot to submit step 5 from procedure 1 in Chap. 6 of the Committers Guide:
Update Mentor and Mentee Information

Reviewed by:	arrowd (mentor), tcberner (mentor)
Approved by:	arrowd (mentor), tcberner (mentor)
2020-09-10 13:57:57 +00:00
Li-Wen Hsu
95407a79cb Remove vm_map_create(9) KPI's manpage according to r364302
Submitted by:	Ka Ho Ng <khng300@gmail.com>
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26372
2020-09-10 06:32:25 +00:00
Robert Wing
37d72a9177 periodic.conf(5): don't truncate interface names reported by 420.status-network.
The daily periodic script, 420.status-network uses netstat(1) to report
interface status. By default, netstat(1) truncates interface names.

Add the '-W' flag (avoid truncating interface names) as the default for
'daily_status_network_netstat_flags' in periodic.conf(5).

The default 420.status-network command is now 'netstat -i -d -W -n'.

PR:     163572
Reported by: kes-kes@yandex.ru
Reviewed by: allanjude (mentor) bcr (manpages)
Approved by: allanjude (mentor)
MFC after:  1 week
Differential Revision:  https://reviews.freebsd.org/D26023
2020-09-09 19:07:34 +00:00
Kyle Evans
a5a160704a src.conf(5): regen after r365491 2020-09-09 00:41:31 +00:00
Kyle Evans
d3980671b3 opts: FREEBSD_UPDATE no longer relies on PORTSNAP
phttpget is no longer tied to the portsnap build as of r365490.

MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26255
2020-09-09 00:40:54 +00:00
Ed Maste
f83a16e0ec src.conf.5: regen after r365439, WITH_/WITHOUT_CLEAN option 2020-09-08 00:48:18 +00:00
Ed Maste
7576679986 Add WITH_/WITHOUT_CLEAN option to replace NO_CLEAN
This allows use of the standard src.conf configuration for controlling
whether the tree is cleaned before build or not.  The default is still
to clean.

Setting either NOCLEAN or NO_CLEAN will mention the new src.conf option.
NOCLEAN remains a .warning, while for now NO_CLEAN is .info.

Reviewed by:	bdrewery (earlier version)
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22762
2020-09-08 00:44:35 +00:00
Alan Somers
5e20b96c65 nsswitch.conf.5: style fixes
Fix some whitespace, and remove the .Tn macro

Reported by:	mandoc, igor
Reviewed by:	bcr (manpages)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26345
2020-09-07 13:44:54 +00:00
Li-Wen Hsu
eddaeb2095 Slightly improve usb(4)
- Mention USB 3.0
- Update links
- Fix `mandoc -T lint` warnings

Reviewed by:	bcr, hselasky
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26349
2020-09-07 07:44:14 +00:00
Alan Somers
04bd07fd15 nsswitch.conf(5): recommend placing cache after files
When cache precedes files, and nscd is configured to allow negative caching,
commands like "pw groupadd" can fail. The sequence of events looks like:

1. A command like pkg(8) looks up the group, and finds it absent.
2. pkg invokes pw(8) to add the group
3. pkg queries the group, but nscd says it doesn't exist, since it has a
   negative cache entry for that group.

See also: https://lists.freebsd.org/pipermail/freebsd-current/2012-January/031595.html

Reviewed by:	bcr (manpages)
MFC after:	1 week
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D26184
2020-09-06 20:32:13 +00:00
Dimitry Andric
7d4374f65f Turn MALLOC_PRODUCTION into a regular src.conf(5) option
For historical reasons, defining MALLOC_PRODUCTION in /etc/make.conf has
been used to turn off potentially expensive debug checks and statistics
gathering in the implementation of malloc(3).

It seems more consistent to turn this into a regular src.conf(5) option,
e.g. WITH_MALLOC_PRODUCTION / WITHOUT_MALLOC_PRODUCTION. This can then
be toggled similar to any other source build option, and turned on or
off by default for e.g. stable branches.

Reviewed by:	imp, #manpages
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D26337
2020-09-05 23:30:17 +00:00
Mateusz Guzik
ea0a0939ef sx: fix up manpage after r363113
No date change as there is no new information.

Submitted by:	sigsys@gmail.com
Differential Revision: https://reviews.freebsd.org/D26341
2020-09-05 20:22:02 +00:00
Rick Macklem
9c4368e73c Add entries for the OID used for NFS-over-TLS "user@domain".
The NFS-over-TLS server daemon (rpc.tlsservd) can optionally replace user
credentials in the RPC header with ones derived from a username specified
by the form "user@domain", if this exists in the client's X.509 v3 certificate.
Specifically, "user@domain" needs to be in the "otherName" component of
subjectjAltName, with a unique OID as assigned by this update.

This patch adds a subtree for the "otherName" component of subjectAltName in
X.509 v3 cerificates and a value for "user@domain" as used by NFS-over-TLS.

Reviewed by:	phk, gordon
Differential Revision:	https://reviews.freebsd.org/D26225
2020-09-03 20:42:30 +00:00
John Baldwin
4d135bbd7f libifconfig now depends on libm due to usage of log10().
ld.bfd in particular requires -lm to come after libifconfig on the
command line when linking rescue.

Reviewed by:	freqlabs, adrian
Differential Revision:	https://reviews.freebsd.org/D26258
2020-09-02 22:10:08 +00:00
Ian Lepore
ac07cdf8f7 In ltc430x(4), add the ability to configure control register 2 via FDT or
hints data.  Control register 2 holds the settings a user might want to
configure, such as the timeout value for idle busses and whether to enable
the mass-writes feature.

Also add hint support for disconnecting idle busses (which was already
supported using FDT data).

Update the manpage with the new features, and also split the hints section
into separate lists of required and optional hints.
2020-09-02 19:37:47 +00:00
Mark Johnston
2d838cd867 Add the MEM_EXTRACT_PADDR ioctl to /dev/mem.
This allows privileged userspace processes to find information about the
physical page backing a given mapping.  It is useful in applications
such as DPDK which perform some of their own memory management.

Reviewed by:	kib, jhb (previous version)
MFC after:	2 weeks
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D26237
2020-09-02 18:12:47 +00:00
Andrew Turner
d14897f960 When CPUTYPE is an architecture name use -march
Allow architecture names to be passed in to the build system via CPUTYPE.
This allows the user to use values such as armv8.1-a or armv8-a+crc as
the CPUTYPE.

Sponsored by:	Innovate UK
2020-09-02 11:53:26 +00:00
John-Mark Gurney
df94ce0f90 add Xr to device_get_sysctl(9) to make this easier to find 2020-09-01 20:42:48 +00:00
Ian Lepore
e439fa62ef Document the fact that you must set an i2c slave address as well as the
upstream iicbus to configure this device using hints.
2020-09-01 19:06:08 +00:00
Ed Maste
55c9a224e2 release.7: update for current context
It's no longer unusual to be able to build a release with a single
command, so drop "actually" that hints at a surprise.  Also just use
"network install directory" instead of referencing FTP; it's more
likely to be HTTP now.

Reviewed by:	gjb
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26260
2020-09-01 15:30:40 +00:00
John Baldwin
73fd212c81 Suppress -Wempty-body warnings in GCC 6.x and later.
libc++ in LLVM 11 uses an empty else clause in
include/c++/v1/__thread_support which triggers this warning.

Reviewed by:	dim, emaste
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26257
2020-08-31 21:57:01 +00:00
Warner Losh
8df7e154a2 Add deprecation notice for apm BIOS
Add deprecation notice for apm bios, aka the apm(4) device. The apm(8)
command will remain, at least for a while, since ACPI emulates the apm
ioctl interface.

Discussed on: arch@
Relnotes: yes
MFC After: 3 days
2020-08-31 21:04:00 +00:00
Gordon Bergling
8214b194ad vtnet(4): improve the wording
PR:		247936
Submitted by:	PauAmma <pauamma at gundo dot com>
Reported by:	PauAmma <pauamma at gundo dot com>
MFC after:	7 days
Differential Revision:	https://reviews.freebsd.org/D26244
2020-08-31 20:02:32 +00:00
Marko Zec
bd36872867 Driver for 4x10Gb Ethernet reference NIC FPGA design for NetFPGA SUME
development board.

Submitted by:	Denis Salopek <denis.salopek AT fer.hr>
Reported by:	zec, bz (src); rgrimes, bcr (manpages)
MFC after:	7 days
Sponsored by:	Google Summer of Code 2020
Differential Revision:	https://reviews.freebsd.org/D26074
2020-08-30 07:34:32 +00:00
Vladimir Kondratyev
5d4bf0578f LinuxKPI: Implement ksize() function.
In Linux, ksize() gets the actual amount of memory allocated for a given
object. This commit adds malloc_usable_size() to FreeBSD KPI which does
the same. It also maps LinuxKPI ksize() to newly created function.

ksize() function is used by drm-kmod.

Reviewed by:	hselasky, kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26215
2020-08-29 19:26:31 +00:00
Vincenzo Maffione
5c4f8d801c lib: add libnetmap
This changeset introduces the new libnetmap library for writing
netmap applications.
Before libnetmap, applications could either use the kernel API
directly (e.g. NIOCREGIF/NIOCCTRL) or the simple header-only-library
netmap_user.h (e.g. nm_open(), nm_close(), nm_mmap() etc.)

The new library offers more functionalities than netmap_user.h:
  - Support for complex netmap options, such as external memory
    allocators or per-buffer offsets. This opens the way to future
    extensions.
  - More flexibility in the netmap port bind options, such as
    non-numeric names for pipes, or the ability to specify the netmap
    allocator that must be used for a given port.
  - Automatic tracking of the netmap memory regions in use across the
    open ports.

At the moment there is no man page, but the libnetmap.h header file
has in-depth documentation.

Reviewed by:	hrs
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26171
2020-08-28 20:03:54 +00:00
Ryan Moeller
40d0fd2875 libzfs: Add missing crypto dependency
libzfs_crypto.c uses PKCS5_PBKDF2_HMAC_SHA1 from libcrypto.

Reported by:	John Kennedy
Sponsored by:	iXsystems, Inc.
2020-08-27 13:05:41 +00:00
Warner Losh
513575d446 Make sbuf_setpos match the implementation.
sbuf_setpos can only be used to truncate the buffer, never to make it
longer. Update the documentation to reflect this.

Reviewed By: allanjude, phk
Differential Revision: https://reviews.freebsd.org/D26198
2020-08-26 17:06:16 +00:00
Alex Richardson
489377c0a4 Avoid recomputing COMPILER_/LINKER_ variables when set explicitly
I noticed that when we build libraries for a different ABI (in CheriBSD) we
were calling ${XCC}/${LD} --version for every directory. It turns out that
this was caused by bsd.compat.mk explicitly setting (X_)COMPILER variables
for that build stage and this stops the _can_export logic from working.
To fix this, we change the check to only set _can_export=no if the variable
is set and it is set to a different value than the cached value.
This noticeably speeds up the tree walk while building compat libraries.
During an upstream amd64 buildworld this also removes 8 --version calls.

Obtained from:	CheriBSD
Reviewed By:	brooks, emaste
Differential Revision: https://reviews.freebsd.org/D25986
2020-08-26 10:21:38 +00:00
Alex Richardson
2d6bee8f00 Fix builds that set LD=ld.lld after r364761
When using relative paths for the linker we have to transform the name
since clang does not like -fuse-ld=ld.lld and instead requires -fuse-ld=lld
(the same also applies for ld.bfd).
2020-08-26 09:19:44 +00:00
Alan Somers
e6f6d0c9bc crypto(9): add CRYPTO_BUF_VMPAGE
crypto(9) functions can now be used on buffers composed of an array of
vm_page_t structures, such as those stored in an unmapped struct bio.  It
requires the running to kernel to support the direct memory map, so not all
architectures can use it.

Reviewed by:	markj, kib, jhb, mjg, mat, bcr (manpages)
MFC after:	1 week
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D25671
2020-08-26 02:37:42 +00:00
D Scott Phillips
f878200180 bitset: add BIT_FFS_AT() for finding the first bit set greater than a start bit
Reviewed by:	kib
Approved by:	scottl (implicit)
MFC after:	1 week
Sponsored by:	Ampere Computing, Inc.
Differential Revision:	https://reviews.freebsd.org/D26128
2020-08-26 02:07:46 +00:00
Mark Johnston
e38788f06c sdhci(4): Recognize the Texas Instruments PCIxx12 card reader.
PR:		248650
Submitted by:	Lars Herschke <lhersch@dssgmbh.de>
MFC after:	1 week
2020-08-25 18:32:43 +00:00
Alex Richardson
6b3a148c52 style.Makefile: list CSTD between WARNS and CFLAGS
This was suggested by emaste in https://reviews.freebsd.org/D25928 and
matches most uses in the tree.
2020-08-25 13:30:29 +00:00
Alex Richardson
2b6ee34cf6 Pass -fuse-ld=/path/to/ld if ${LD} != "ld"
This is needed so that setting LD/XLD is not ignored when linking with $CC
instead of directly using $LD. Currently only clang accepts an absolute
path for -fuse-ld= (Clang 12+ will add a new --ld-path flag), so we now
warn when building with GCC and $LD != "ld" since that might result in the
wrong linker being used.

We have been setting XLD=/path/to/cheri/ld.lld in CheriBSD for a long time and
used a similar version of this patch to avoid linking with /usr/bin/ld.
This change is also required when building FreeBSD on an Ubuntu with Clang:
In that case we set XCC=/usr/lib/llvm-10/bin/clang and since
/usr/lib/llvm-10/bin/ does not contain a "ld" binary the build fails with
`clang: error: unable to execute command: Executable "ld" doesn't exist!`
unless we pass -fuse-ld=/usr/lib/llvm-10/bin/ld.lld.

This change passes -fuse-ld instead of copying ${XLD} to WOLRDTMP/bin/ld
since then we would have to ensure that this file does not exist while
building the bootstrap tools. The cross-linker might not be compatible with
the host linker (e.g. when building on macos: host-linker= Mach-O /usr/bin/ld,
cross-linker=LLVM ld.lld).

Reviewed By:	brooks, emaste
Differential Revision: https://reviews.freebsd.org/D26055
2020-08-25 13:30:03 +00:00
Hans Petter Selasky
d141d1cc5f Add mlx5en(4) to the list of supported netdump network drivers.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2020-08-25 13:21:49 +00:00
Matt Macy
9e5787d228 Merge OpenZFS support in to HEAD.
The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
  project quotas, encrypted datasets,
  allocation classes, vectorized raidz,
  vectorized checksums, various command line
  improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25872
2020-08-25 02:21:27 +00:00
Dimitry Andric
2a5220e12e After r364732, we can now enable MK_OPENMP for aarch64 by default.
PR:		248864
MFC after:	2 weeks
2020-08-24 20:40:26 +00:00
Mateusz Piotrowski
e378129ea6 Reference spi(8) from spigen.4
MFC after:	2 weeks
2020-08-21 09:50:03 +00:00
Gordon Bergling
cb9cbce235 gre(4): Mention sysctl for nesting gre tunnels
PR:		228465
Submitted by:	Sergey Akhmatov <sergey at akhmatov dot ru>
Reviewed by:	bcr
Approved by:	bcr
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26097
2020-08-21 07:03:54 +00:00
Warner Losh
422809e1b1 Remove ufm.4 from the Makefile 2020-08-20 18:31:50 +00:00
Warner Losh
209d3fb41f Remove the long obsolete ufm driver.
It was a driver for a USB FM tuner that was available in the market in 2002. I
wrote the driver in 2003. I've not used it since 2005 or so, so it's time to
retire this driver. No userland code ever interfaced to the special device it
created. There's no user base: the last bug I received on this driver was in
2004.

Relnotes: Yes
2020-08-20 17:35:47 +00:00
Warner Losh
e0d14216c1 Tag pccard drivers with gone in 13.
MFC After: 3 days
Reviewed by: emaste, brooks, adrian (on twitter)
Differential Revision: https://reviews.freebsd.org/D26095
2020-08-20 17:19:40 +00:00
Warner Losh
a418d47b79 Fix function name in zone.9
uma_zone_prealloc -> uma_prealloc. There's no uma_zone_prealloc defined and the
docs for it describe uma_prealloc exactly.
2020-08-20 16:52:34 +00:00
Mark Johnston
7d604fb5f3 Add a KCOV man page.
Reviewed by:	andrew, gbe, tuexen
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26108
2020-08-19 18:52:22 +00:00
Ed Maste
697718b9b6 ipfirewall(4): remove Cuseeme from supported list
Submitted by:	Dries Michiels
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26075
2020-08-19 17:52:06 +00:00
Mateusz Piotrowski
0dfb59ab75 Cross-reference development.7 and tests.7
MFC after:	7 days
2020-08-19 13:09:31 +00:00
Marko Zec
502305f04a Fix ber parameter description. 2020-08-18 22:15:51 +00:00
Gordon Bergling
30a85ff3c0 pf.conf(5): Assorted fixes
- new sentence new line
- blank lines in fill mode
2020-08-18 17:30:51 +00:00
Warner Losh
0c8e22687c bt(4) has already been removed. Add a deprecation notice.
MFC After: 1 day
2020-08-18 17:29:01 +00:00
Mateusz Piotrowski
09f515da61 Use complete OIDs to avoid confusion
Submitted by:	otis_sk.freebsd.org
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26098
2020-08-18 10:30:55 +00:00
Warner Losh
c9234752b0 Document that PC Card will likely be removed before 13.
This was discussed in arch@ a while ago. Most of the 16-bit drivers that it
relied on have been removed. There's only a few other drivers remaining that
support it, and those are very rare the days (even the once ubiquitious wi(1)
is now quite rare).

Indvidual drivers will be handled separately before pccard itself is removed.
2020-08-18 06:18:18 +00:00
John Baldwin
e2ec07432d Move -L${LIBCOMPATTMP}/usr/lib${libcompat} from CFLAGS to LDFLAGS.
This is only needed when linking and fixes various "unused command
line argument" warnings during the lib32 build.

Reviewed by:	bdrewery
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26068
2020-08-17 17:17:33 +00:00
Mariusz Zaborski
832dc76b63 libcasper: Introduce cap_net a network service for Casper.
Reviewed by:	emaste, markj (previous version), bcr (man page)
Differential Revision:	https://reviews.freebsd.org/D24688
2020-08-16 18:12:21 +00:00
Conrad Meyer
8a0edc914f Add prng(9) API
Add prng(9) as a replacement for random(9) in the kernel.

There are two major differences from random(9) and random(3):

- General prng(9) APIs (prng32(9), etc) do not guarantee an
  implementation or particular sequence; they should not be used for
  repeatable simulations.

- However, specific named API families are also exposed (for now: PCG),
  and those are expected to be repeatable (when so-guaranteed by the named
  algorithm).

Some minor differences from random(3) and earlier random(9):

- PRNG state for the general prng(9) APIs is per-CPU; this eliminates
  contention on PRNG state in SMP workloads.  Each PCPU generator in an
  SMP system produces a unique sequence.

- Better statistical properties than the Park-Miller ("minstd") PRNG
  (longer period, uniform distribution in all bits, passes
  BigCrush/PractRand analysis).

- Faster than Park-Miller ("minstd") PRNG -- no division is required to
  step PCG-family PRNGs.

For now, random(9) becomes a thin shim around prng32().  Eventually I
would like to mechanically switch consumers over to the explicit API.

Reviewed by:	kib, markj (previous version both)
Discussed with:	markm
Differential Revision:	https://reviews.freebsd.org/D25916
2020-08-13 20:48:14 +00:00
Alex Richardson
01c4f3a763 Make bsd.linker.mk work with the MacOS linker
This is not strictly required for crossbuilding but having lots of warnings
from bsd.linker.mk in the output was making it hard to see the actual
warning messages.

Reviewed By:	imp
Differential Revision: https://reviews.freebsd.org/D14318
2020-08-13 14:14:51 +00:00
Andriy Gapon
a089fa298d hook cp2112.4 to the build
Reported by:	0mp
MFC after:	1 week
X-MFC with:	r364144
2020-08-12 11:37:28 +00:00
Andriy Gapon
758fac8f87 hook gpiokeys.4 to the build
Reported by:	0mp
MFC after:	3 days
X-MFC with:	r363905
2020-08-12 11:36:09 +00:00
Andriy Gapon
470d07d417 add a manual page for cp2112
MFC after:	1 week
2020-08-12 09:42:05 +00:00
Alex Richardson
91b31c100b Allow linking the kernel with a linker that doesn't support -z ifunc-noplt
This can happen when linking with upstream LLD < 9.0.

Reviewed By:	markj
Differential Revision: https://reviews.freebsd.org/D25985
2020-08-11 16:47:00 +00:00
Alex Richardson
14267d398f Add CLANG/LLD/LLD to BROKEN_OPTIONS when building on non-FreeBSD
These tools require a bootstrap llvm-tblgen/clang-tblgen and that cannot
be built with the current make infrastructure: the config header is not
correct for Linux/macOS and we don't include the CMakeLists.txt in contrib
so we can't generate one that would be correct.

Reviewed By:	emaste, imp, dim
Differential Revision: https://reviews.freebsd.org/D14245
2020-08-11 16:46:43 +00:00
Alex Richardson
1a18ab420b Allow overriding the tool used for stripping binaries
Since the make variable STRIP is already used for other purposes, this
uses STRIPBIN (which is also used for the same purpose by install(1).
This allows using LLVM objcopy to strip binaries instead of the in-tree
elftoolchain objcopy. We make use of this in CheriBSD since passing
binaries generated by our toolchain to elftoolchain strip sometimes results
in assertion failures.

This allows working around https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248516
by specifying STRIPBIN=/path/to/llvm-strip

Obtained from:	CheriBSD
Reviewed By:	emaste, brooks
Differential Revision: https://reviews.freebsd.org/D25988
2020-08-11 16:46:27 +00:00
Mateusz Guzik
51ea7bea91 vfs: add VOP_STAT
The current scheme of calling VOP_GETATTR adds avoidable overhead.

An example with tmpfs doing fstat (ops/s):
before: 7488958
after:  7913833

Reviewed by:	kib (previous version)
Differential Revision:	https://reviews.freebsd.org/D25910
2020-08-07 23:06:40 +00:00
Bjoern A. Zeeb
7d1d4407f5 net80211/ifconfig: print hardware device name for wlan interfaces
Add IEEE80211_IOC_IC_NAME to query the ic_name field and in ifconfig
to print the parent interface again. This functionality was lost
around r287197. It helps in case of multiple wlan interfaces and
multiple underlying hardware devices to keep track which wlan
interface belongs to which physical device.

Sponsored by:	Rubicon Communications, LLC (d/b/a "Netgate")
Reviewed by:	adrian, Idwer Vollering
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D25832
2020-08-07 12:24:23 +00:00
Li-Wen Hsu
da34299940 Add a .Pp to separate description and sample code for readability. 2020-08-07 08:57:31 +00:00
Andrey V. Elsukov
a134ebd6e6 Synchronize definitions in mbuf.d with values from mbuf.h
Obtained from:	Yandex LLC
Sponsored by:	Yandex LLC
2020-08-05 11:54:02 +00:00
Gordon Bergling
6d34415f67 environ(7): Update the description and include some more environment variables
- Add a better introduction to the DESCRIPTION section
- Add a description for MANPATH and POSIXLY_CORRECT
- Asorted improvements for the usage of some macros

PR:		43823
Submitted by:	Lyndon Nerenberg <lyndon at orthanc dot ab dot ca>
Reviewed by:	0mp, bcr
Approved by:	0mp, bcr
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25912
2020-08-05 11:41:41 +00:00
Andriy Gapon
75050aa9af gpiokeys: add a basic manual page
Reviewed by:	manu, bjk, 0mp
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D25939
2020-08-05 11:38:33 +00:00
Mateusz Piotrowski
b9615c3c00 Do not describe portsnap(8) as a way to manage /usr/ports 2020-08-05 11:26:14 +00:00
John Baldwin
776b260ae2 Disable errors for -Wsystem-headers for GCC on aarch64.
GCC's own arm_neon.h triggers multiple warnings on both GCC 6 and
GCC 9.

Differential Revision:	https://reviews.freebsd.org/D25729
2020-08-04 18:24:46 +00:00
John Baldwin
0ea6e5109d Disable errors for -Wredundant-decls for GCC 6+.
GCC triggers warnings for this that clang does not for duplicate
declarations of yylex().

Differential Revision:	https://reviews.freebsd.org/D25727
2020-08-04 18:20:39 +00:00
John Baldwin
a02fb76280 Turn off errors for -Wmaybe-uninitialized in GCC 6+.
Recent changes to <sys/tree.h> trigger this warning and seem like a
false positive.

Differential Revision:	https://reviews.freebsd.org/D25726
2020-08-04 18:19:29 +00:00
Emmanuel Vadot
dd8c2fa31b pkgbase: Remove the last users of the FreeBSD-example package
Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D24176
2020-08-04 14:48:45 +00:00
Mark Johnston
96ad26eefb Remove free_domain() and uma_zfree_domain().
These functions were introduced before UMA started ensuring that freed
memory gets placed in domain-local caches.  They no longer serve any
purpose since UMA now provides their functionality by default.  Remove
them to simplyify the kernel memory allocator interfaces a bit.

Reviewed by:	cem, kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25937
2020-08-04 13:58:36 +00:00
Kyle Evans
b4af4f93c6 gtest: link against libregex for GNU extensions
gtest tests want to use \w ([[:alnum:]]) at the very least, which was
causing them to fail after r363679.

Start linking against libregex so that this shorthand is implemented.

PR:		248452
2020-08-04 02:18:24 +00:00
Konstantin Belousov
6e0c8e1ae2 Add SOL_LOCAL symbolic constant for unix socket option level.
The constant seems to exists on MacOS X >= 10.8.

Requested by:	swills
Reviewed by:	allanjude, kevans
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25933
2020-08-03 22:13:02 +00:00
Mateusz Piotrowski
8c72577900 Do not mention portsnap(8) in ports.7
As we are moving away from portsnap,
let's not recommend it in the manual page.

Reviewed by:	bcr (manpages), mat (portmgr)
Differential Revision:	https://reviews.freebsd.org/D25847
2020-08-03 13:12:07 +00:00
Mateusz Piotrowski
c7b00f0071 core(5) appeared in Version 1 AT&T UNIX
Based on the scans of manual pages available at
https://www.bell-labs.com/usr/dmr/www/man51.pdf,
which are a part of the following collection:
https://www.bell-labs.com/usr/dmr/www/1stEdman.html.

Obtained from:	NetBSD
Differential Revision:	https://reviews.freebsd.org/D25849
2020-08-02 16:59:14 +00:00
Gregory Neil Shapiro
c5112a4e2d Mirror recommendation from Handbook to avoid linking conflicts when
pulling in SASL libraries.

PR:		247959
Reported by:	Scott Allendorf
MFC after:	3 days
2020-08-01 04:57:30 +00:00
Mateusz Piotrowski
0b87619ffe Point to rc(8) for more details about the autoboot variable
Reviewed by:	bcr, imp
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25904
2020-07-31 14:13:26 +00:00
Mark Johnston
370b7cc904 ng_iface(4): Remove unsupported protocols.
Update the ng_iface documentation and hooks to reflect the fact that the
node currently only supports IPv4 and v6 packets.

Reviewed by:	Lutz Donnerhacke
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25862
2020-07-31 14:08:54 +00:00
John-Mark Gurney
aa6ea9b6ce remove some long abandonded serial drivers (cy, rc, rp) since 2008
Reviewed by:	phk (earlier version)
Reviewed by:	emaste (earlier version)
Reviewed by:	bcr (earlier version)
Reviewed by:	zeising (earlier version)
Differential Revision:	https://reviews.freebsd.org/D25874
2020-07-30 00:53:56 +00:00
John-Mark Gurney
40326c1718 add link to crypto(7) page, and drop a link to unrelated crypt(3) page.. 2020-07-29 21:15:06 +00:00
Daniel Ebdrup Jensen
eb83321d44 Outline mentorship
As part of onboarding and while listening to Holy Ghost by The Bar-Kays, outline
my mentorship. 0mp is mentor, with allanjude and bcr as co-mentor.

Reviewed by:	0mp, allanjude, bcr
Approved by:	0mp (mentor), allanjude (mentor), bcr (mentor)
Differential Revision:	D25855
2020-07-29 11:17:44 +00:00
Robert Wing
055f269472 Add myself (rew) as src committer.
Reviewed by:    kevans (mentor), allanjude (mentor)
Approved by:    kevans (mentor), allanjude (mentor)
Differential Revision: https://reviews.freebsd.org/D25837
2020-07-29 05:27:19 +00:00
John Baldwin
b027b6637a Add further clarification on si_addr and si_trapno.
- In the initial description of si_addr, do not claim that it is
  always the faulting instruction.

- For si_addr, document that it is generally set to the PC for
  synchronous signals, but that it can be set to the the address of
  the faulting memory reference for some signals including SIGSEGV and
  SIGBUS.  In particular, while SIGSEGV generally sets si_addr to the
  faulting memory reference, SIGBUS can vary.  On some platforms, some
  SIGBUS signals set si_addr to the PC and other SIGBUS signals set
  si_addr to the faulting address depending on the specific hardware
  exception.

- For si_trapno, synchronous signals should set this to some value.

Reviewed by:	kib
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D25777
2020-07-28 17:09:15 +00:00
Mateusz Piotrowski
58f5de0d8a tree.3: Bump date after 363450 (WAVL)
While here:
- Address whitespace warnings.
- Start sentences on a new line.
2020-07-27 11:42:22 +00:00
Alexander Motin
aba10e131f Allow swi_sched() to be called from NMI context.
For purposes of handling hardware error reported via NMIs I need a way to
escape NMI context, being too restrictive to do something significant.

To do it this change introduces new swi_sched() flag SWI_FROMNMI, making
it careful about used KPIs.  On platforms allowing IPI sending from NMI
context (x86 for now) it immediately wakes clk_intr_event via new IPI_SWI,
otherwise it works just like SWI_DELAY.  To handle the delayed SWIs this
patch calls clk_intr_event on every hardclock() tick.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25754
2020-07-25 15:19:38 +00:00
Mateusz Piotrowski
d6dade0002 Fix grammar issues and typos
Reported by:	ian
MFC after:	1 week
2020-07-24 15:04:34 +00:00
Mateusz Piotrowski
5ccb7079f8 Document that force_depend() supports only /etc/rc.d scripts
Currently, force_depend() from rc.subr(8) does not support depending on
scripts outside of /etc/rc.d (like /usr/local/etc/rc.d). The /etc/rc.d path
is hard-coded into force_depend().

MFC after:	1 week
2020-07-24 14:17:37 +00:00
John-Mark Gurney
b6dd8b71d1 fix up docs for m_getjcl as well.. 2020-07-24 00:47:14 +00:00
John-Mark Gurney
92b56ebaf7 document that m_get2 only accepts up to MJUMPAGESIZE.. 2020-07-24 00:35:21 +00:00
John Baldwin
3c0e568505 Add support for KTLS RX via software decryption.
Allow TLS records to be decrypted in the kernel after being received
by a NIC.  At a high level this is somewhat similar to software KTLS
for the transmit path except in reverse.  Protocols enqueue mbufs
containing encrypted TLS records (or portions of records) into the
tail of a socket buffer and the KTLS layer decrypts those records
before returning them to userland applications.  However, there is an
important difference:

- In the transmit case, the socket buffer is always a single "record"
  holding a chain of mbufs.  Not-yet-encrypted mbufs are marked not
  ready (M_NOTREADY) and released to protocols for transmit by marking
  mbufs ready once their data is encrypted.

- In the receive case, incoming (encrypted) data appended to the
  socket buffer is still a single stream of data from the protocol,
  but decrypted TLS records are stored as separate records in the
  socket buffer and read individually via recvmsg().

Initially I tried to make this work by marking incoming mbufs as
M_NOTREADY, but there didn't seemed to be a non-gross way to deal with
picking a portion of the mbuf chain and turning it into a new record
in the socket buffer after decrypting the TLS record it contained
(along with prepending a control message).  Also, such mbufs would
also need to be "pinned" in some way while they are being decrypted
such that a concurrent sbcut() wouldn't free them out from under the
thread performing decryption.

As such, I settled on the following solution:

- Socket buffers now contain an additional chain of mbufs (sb_mtls,
  sb_mtlstail, and sb_tlscc) containing encrypted mbufs appended by
  the protocol layer.  These mbufs are still marked M_NOTREADY, but
  soreceive*() generally don't know about them (except that they will
  block waiting for data to be decrypted for a blocking read).

- Each time a new mbuf is appended to this TLS mbuf chain, the socket
  buffer peeks at the TLS record header at the head of the chain to
  determine the encrypted record's length.  If enough data is queued
  for the TLS record, the socket is placed on a per-CPU TLS workqueue
  (reusing the existing KTLS workqueues and worker threads).

- The worker thread loops over the TLS mbuf chain decrypting records
  until it runs out of data.  Each record is detached from the TLS
  mbuf chain while it is being decrypted to keep the mbufs "pinned".
  However, a new sb_dtlscc field tracks the character count of the
  detached record and sbcut()/sbdrop() is updated to account for the
  detached record.  After the record is decrypted, the worker thread
  first checks to see if sbcut() dropped the record.  If so, it is
  freed (can happen when a socket is closed with pending data).
  Otherwise, the header and trailer are stripped from the original
  mbufs, a control message is created holding the decrypted TLS
  header, and the decrypted TLS record is appended to the "normal"
  socket buffer chain.

(Side note: the SBCHECK() infrastucture was very useful as I was
 able to add assertions there about the TLS chain that caught several
 bugs during development.)

Tested by:	rmacklem (various versions)
Relnotes:	yes
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D24628
2020-07-23 23:48:18 +00:00
Doug Moore
e605dcc939 Rank balanced (RB) trees are a class of balanced trees that includes
AVL trees, red-black trees, and others. Weak AVL (wavl) trees are a
recently discovered member of that class. This change replaces
red-black rebalancing with weak AVL rebalancing in the RB tree macros.

Wavl trees sit between AVL and red-black trees in terms of how
strictly balance is enforced. They have the stricter balance of AVL
trees as the tree is built - a wavl tree is an AVL tree until the
first deletion. Once removals start, wavl trees are lazier about
rebalancing than AVL trees, so that removals can be fast, but the
balance of the tree can decay to that of a red-black tree. Subsequent
insertions can push balance back toward the stricter AVL conditions.

Removing a node from a wavl tree never requires more than two
rotations, which is better than either red-black or AVL
trees. Inserting a node into a wavl tree never requires more than two
rotations, which matches red-black and AVL trees. The only
disadvantage of wavl trees to red-black trees is that more insertions
are likely to adjust the tree a bit. That's the cost of keeping the
tree more balanced.

Testing has shown that for the cases where red-black trees do worst,
wavl trees better balance leads to faster lookups, so that if lookups
outnumber insertions by a nontrivial amount, lookup time saved exceeds
the extra cost of balancing.

Reviewed by:	alc, gbe, markj
Tested by:	pho
Discussed with:	emaste
Differential Revision:	https://reviews.freebsd.org/D25480
2020-07-23 17:16:20 +00:00
Edward Tomasz Napierala
55ec696d42 Add missing bitset(9) MLINKS.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25713
2020-07-19 12:22:32 +00:00
Gordon Bergling
d8fd37e1e1 devstat(9): Update the man page to reflect the current implementation
- Rename devstat_add_entry to devstat_new_entry
- Update the description of devstat_trans_flags
- Add manpage aliases for devstat_start_transaction_bio and devstat_end_transaction_bio

PR:		157316
Submitted by:	novel
Reviewed by:	cem, bcr (mentor)
Approved by:	bcr (mentor)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25677
2020-07-17 22:15:02 +00:00
Gordon Bergling
0550be0273 iwm(4): Document limitations of the driver
Document that iwm(4) currently doesn't support 802.11n and 802.11ac.

PR:		247874
Submitted by:	Charles Ross <cwr at sdf dot org>
Reviewed by:	brueffer, markj
Approved by:	brueffer
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25666
2020-07-17 21:47:06 +00:00
Piotr Pawel Stefaniak
c6a2e9a7ae Promote use of unprivileged users for building ports by documenting SU_CMD.
Phrasing by Daniel O'Connor.

Reviewed by:	0mp
MFC after:	14 days
Differential Revision:	https://reviews.freebsd.org/D25433
2020-07-17 06:33:20 +00:00
John Baldwin
946b8f6fb0 Add crypto_initreq() and crypto_destroyreq().
These routines are similar to crypto_getreq() and crypto_freereq() but
operate on caller-supplied storage instead of allocating crypto
requests from a UMA zone.

Reviewed by:	markj
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D25691
2020-07-16 21:30:46 +00:00
Warner Losh
34a8e7368f Relax the rule against declaring variables in nested scopes and for
initializations.

Relax some overly perscriptive rules against declarations: they may be at the
start of any blocks, even if things aren't super complicated. Allow more
initializations (those that call simple functions, like accessor functions for
newbus are fine). Allow the common idiom of declaring the loop variable in a for
loop.

This tries to codify what common exceptions are today, as well as give
some guidance on when it's best to do these things.

Reviewed by: tsoome, kp, markm, allanjude, jiles, cem, rpokala
	(earlier versions: seanc, melifaro, bapt, pjd, bz, pstef, arichards,
	 jhibits, vangyzen, jmallet, ian, glebius, jhb, dab, adrian,
	 sef, gnn)
Differential Revision: https://reviews.freebsd.org/D25312
2020-07-16 14:12:54 +00:00
Allan Jude
0fd4ac1ec4 vlan(4): Minor grammar corrections
Note: date not bumped because "content" was not changed, just inserted some
missing words.

PR:		248001
Submitted by:	Jose Luis Duran <jlduran@gmail.com>
MFC after:	2 weeks
Sponsored by:	Klara Inc.
2020-07-15 14:27:23 +00:00
Mark Johnston
b356ddf076 Add a driver for the SafeXcel EIP-97.
The EIP-97 is a packet processing module found on the ESPRESSObin.  This
commit adds a crypto(9) driver for the crypto and hash engine in this
device.  An initial skeleton driver that could attach and submit
requests was written by loos and others at Netgate, and the driver was
finished by me.

Support for separate AAD and output buffers will be added in a separate
commit, to simplify merging to stable/12 (where those features don't
exist).

Reviewed by:	gnn, jhb
Feedback from:	andrew, cem, manu
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC (Netgate)
Differential Revision:	https://reviews.freebsd.org/D25417
2020-07-14 14:09:29 +00:00
Allan Jude
cdfea68b44 periodic.conf: correct capitailization in the middle of a sentence
Reported by:	yuripv
Event:		July 2020 Bugathon
2020-07-11 22:14:44 +00:00
Mateusz Guzik
bd3cbfd26f sx: remove SX_NOADAPTIVE from the man page
The flag itself was removed in r341593
2020-07-11 21:57:43 +00:00
Allan Jude
463b8ebdcb Add cross references betwen ttys(5) and related drivers
nmdm(4), ucom(4), and uart(4)

PR:		247638
Submitted by:	Pau Amma <pauamma@gundo.com>
Reported by:	0mp
MFC after:	4 weeks
Sponsored by:	Klara Inc.
Event:		July 2020 Bugathon
2020-07-11 20:56:57 +00:00
Allan Jude
ce2fe5b109 Add a periodic script to backup the partition table and boot code
Optionally, alert you if the contents change from the previous backup

PR:		86388
Submitted by:	Rob Fairbanks <rob.fx907@gmail.com>, Miroslav Lachman <000.fbsd@quip.cz> (Original Version)
MFC after:	4 weeks
Relnotes:	yes
Sponsored by:	Klara Inc.
Event:		July 2020 Bugathon
Differential Revision:	https://reviews.freebsd.org/D25628
2020-07-11 20:53:31 +00:00
Sergio Carlavilla Delgado
45b34f2cce Add orders man page
PR:		239020
Submitted by:	gbe@
Approved by:	imp@
Obtained from:	NetBSD
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D24293
2020-07-11 18:27:05 +00:00
Allan Jude
d36485a5c8 defaults/rc.conf: note that the default is ppp_nat="YES"
PR:		243062
Submitted by:	Evilham <contact@evilham.com>
MFC after:	2 weeks
Sponsored by:	Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25621
2020-07-11 16:57:44 +00:00
Mark Johnston
052c5ec4d0 Provide support for building SCTP as a loadable module.
With this change, a kernel compiled with "options SCTP_SUPPORT" and
without "options SCTP" supports dynamic loading of the SCTP stack.

Currently sctp.ko cannot be unloaded since some prerequisite teardown
logic is not yet implemented.  Attempts to unload the module will return
EOPNOTSUPP.

Discussed with:	tuexen
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21997
2020-07-10 14:56:05 +00:00
Gleb Smirnoff
91ddfec2d7 Fixup for r360574: install new mlinks for sglist(9) and remove old ones. 2020-07-07 02:41:51 +00:00
Mitchell Horne
d3112319ac src.conf.5: regen after r362972, r362973, RISC-V EFI support 2020-07-06 18:43:00 +00:00
Mitchell Horne
2192efc03b RISC-V boot1.efi and loader.efi support
This implementation doesn't have any major deviations from the other EFI
ports. I've copied the boilerplate from arm and arm64.

I've tested this with the following boot flows:
OpenSBI (M-mode) -> u-boot (S-mode) -> loader.efi -> FreeBSD
OpenSBI (M-mode) -> u-boot (S-mode) -> boot1.efi -> loader.efi -> FreeBSD

Due to the way that u-boot handles secondary CPUs, OpenSBI >= v0.7 is required,
as the HSM extension is needed to bring them up explicitly. Because of this,
using BBL as the SBI implementation will not be possible. Additionally, there
are a few recent u-boot changes that are required as well, all of which will be
present in the upcoming v2020.07 release.

Looks good:	emaste
Differential Revision:	https://reviews.freebsd.org/D25135
2020-07-06 18:19:42 +00:00
Edward Tomasz Napierala
6bc927360c Make linux(4) man page also mention /compat/linux/dev.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2020-07-05 13:15:13 +00:00
Edward Tomasz Napierala
6ef8f9d28a Make the linux rc script use linrdlnk by default.
This fixes Linux gettyname(3), with caveats (see PR).

PR:		kern/240767
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25558
2020-07-04 18:01:29 +00:00
Muhammad Moinur Rahman
f6c03fc6d0 Update with the members of the 11th core team, core.xi
- Update the core-secretary role.
- Update the comment to mention that the sorting is done based on FreeBSD
  login name

Reported by:		bofh (with core-secretary@ hat on)
Reviewed by:		bcr
Approved by:		bcr
Differential Revision:	https://reviews.freebsd.org/D25526
2020-07-01 15:30:27 +00:00
Mateusz Piotrowski
6d33315d2f Cross-reference style(9) and style.mdoc(5)
Suggested by:	yuripv
MFC after:	3 days
2020-06-30 16:23:51 +00:00
Alan Somers
81884a247c savecore: accept device names without the /dev/ prefix
dumpon has accepted device names without the prefix ever since r291207.
Since dumpon and savecore are always paired, they ought to accept the same
arguments. Prior to this change, specifying 'dumpdev="da3"' in
/etc/rc.conf, for example, would result in dumpon working just fine but
savecore complaining that "Dump device does not exist".

PR:		247618
Reviewed by:	cem, bcr
MFC after:	2 weeks
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D25500
2020-06-29 22:12:23 +00:00
Gordon Bergling
2bb049e6a7 gre(4): Add a STANDARDS section
Expand the mentioned RFC in the SEE ALSO section
and reference RFC1701 and RFC1702.

PR:	240250
Reviewed by:	bcr (mentor)
Approved by:	bcr (mentor)
Obtained from:	OpenBSD
MFC after:	7 days
Differential Revision:	https://reviews.freebsd.org/D25504
2020-06-29 10:30:43 +00:00
Hiroki Sato
fa9012aef1 Fix CTYPE for ja_JP.eucJP and ja_JP.SJIS.
PR:		163168
MFC after:	3 days
2020-06-29 03:23:13 +00:00
Mateusz Piotrowski
e4c248eb1b Document that Intel Dual Band Wireless AC 8265 is supported by iwm(4)
MFC after:	2 weeks
2020-06-28 21:48:56 +00:00
Michael Gmelin
041ec79e64 Adapt documentation of kern.tty_info_kstacks.
s/stack/kernel stack/, as this feature only shows kernel stacks.

Reported by:	jhb
Reviewed by:	jhb
Differential Revision:	https://reviews.freebsd.org/D25488
2020-06-28 17:28:11 +00:00
Rick Macklem
1eb2246444 Update VFS_CHECKEXP.9 to reflect how it is currently used by the NFS server.
Reported by:	pluknet
Reviewed by:	bcr
Differential Revision:	https://reviews.freebsd.org/D25333
2020-06-27 21:37:48 +00:00
Michael Gmelin
2dcf8c4593 Document new kern.tty_info_kstacks tunable.
Reviewed by:	manpages (imp), 0mp
Differential Revision:	https://reviews.freebsd.org/D25488
2020-06-27 16:31:04 +00:00
Mateusz Piotrowski
f15efe26bb ixl.4: Use a -bullet list instead of -item
Now the list looks like a list. Using -item only makes sense if the list is
meant to be a list of terms and definitions.

MFC after:	3 days
2020-06-27 13:33:31 +00:00
Stefan Eßer
252884ae7e Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:

- They do not depend on external large number functions (i.e. no dependency
  on OpenSSL or any other large number library)

- They implements all features found in GNU bc/dc (with the exception of
  the forking of sub-processes, which the author of this version considers
  as a security issue).

- They are significantly faster than the current code in base (more than
  2 orders of magnitude in some of my tests, e.g. for 12345^100000).

- They should be fully compatible with all features and the behavior of the
  current implementations in FreeBSD (not formally verified).

- They support POSIX message catalogs and come with localized messages in
  Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
  and Russian.

- They offer very detailed man-pages that provide far more information than
  the current ones.

The upstream sources contain a large number of tests, which are not
imported with this commit. They could be integrated into our test
framework at a latter time.

Installation of this version is controlled by the option "MK_GH_BC=yes".
This option will be set to yes by default in 13-CURRENT, but will be off
by default in 12-STABLE.

Approved by:	imp
Obtained from:	https://git.yzena.com/gavin/bc
MFC after:	4 weeks
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D19982
2020-06-27 12:02:01 +00:00
Mateusz Piotrowski
24b0977b88 Fix a typo, use Lk for links and use HTTPS where applicable
MFC after:	3 days
2020-06-27 11:03:18 +00:00
Li-Wen Hsu
18db3c616f rtwn: Add a USB ID for Buffalo WI-U2-433DHP
PR:		247573
Submitted by:	HATANO Tomomi <hatanou@infolab.ne.jp>
MFC after:	1 week
2020-06-27 07:34:15 +00:00
Li-Wen Hsu
97a4bf8062 Update tests(7) as kyua(1) was imported to base in r359260
PR:		247151
Reported by:	0mp
Reviewed by:	0mp, asomers, bcr, emaste, markj
Suggested from:	brooks, ngie
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25339
2020-06-25 11:41:28 +00:00
Mark Johnston
ddf1843203 acpi_ibm(4): Rename disengaged mode to unthrottled mode.
This mode was added in r362496.  Rename it to make the meaning more
clear.

PR:		247306
Suggested by:	rpokala
Submitted by:	Ali Abdallah <ali.abdallah@suse.com>
MFC with:	r362496
2020-06-24 19:51:03 +00:00
Conrad Meyer
1926765670 Regenerate src.conf.5 after r362587 2020-06-24 17:31:21 +00:00
Conrad Meyer
0a9ab9f549 Add WITH_CLANG_FORMAT option
clang-format is enabled conditional on either WITH_CLANG_EXTRAS or
WITH_CLANG_FORMAT.  Some sources in libclang are build conditional on
either rule, and obviously the clang-format binary itself depends on the
rule.

clang-format could still use a manual page.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D25427
2020-06-24 17:03:42 +00:00
Mateusz Piotrowski
4287cc440c Update documentation after dropping support for i386 aout from ldconfig
The i386 aout invocation was removed from rc.d/ldconfig in r362543.
2020-06-23 18:24:15 +00:00
Mitchell Horne
c4ef7cdb4d arch(7): small corrections for RISC-V
Document that RISC-V supports multiple page sizes: 4K, 2M, and 1G.

RISC-V's long double is always 128-bits wide, therefore quad precision.

Mention __riscv_float_abi_soft, which can be used to differentiate between
riscv64 and riscv64sf in userland code.

MFC after:	3 days
2020-06-23 17:17:13 +00:00
Li-Wen Hsu
5af5819d29 Mention CI system information in development(7)
Approved by:	0mp, bcr
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25340
2020-06-23 11:40:11 +00:00
John Baldwin
9b774dc0c5 Add support to the crypto framework for separate AAD buffers.
This permits requests to provide the AAD in a separate side buffer
instead of as a region in the crypto request input buffer.  This is
useful when the main data buffer might not contain the full AAD
(e.g. for TLS or IPsec with ESN).

Unlike separate IVs which are constrained in size and stored in an
array in struct cryptop, separate AAD is provided by the caller
setting a new crp_aad pointer to the buffer.  The caller must ensure
the pointer remains valid and the buffer contents static until the
request is completed (e.g. when the callback routine is invoked).

As with separate output buffers, not all drivers support this feature.
Consumers must request use of this feature via a new session flag.

To aid in driver testing, kern.crypto.cryptodev_separate_aad can be
set to force /dev/crypto requests to use a separate AAD buffer.

Discussed with:	cem
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D25288
2020-06-22 23:20:43 +00:00
Eugene Grosbein
8e47856b2f Followup to r362502: rc.conf(5): unobsolete gif_interfaces
There are cases when gif_interfaces cannot be replaced
with cloned_interfaces, such as tunnels with external IPv6 addresses
and internal IPv4 or vice versa. Such configuration requires
extra invocation of ifconfig(8) and supported with gif_interfaces only.

Fix manual page and provide some examples.

MFC after:	1 week
X-MFC-With:	362502
2020-06-22 17:52:13 +00:00
Mark Johnston
9f763f0092 acpi_ibm(4): Add support for putting fans in disengaged mode.
PR:		247306
Submitted by:	Ali Abdallah <ali.abdallah@suse.com>
MFC after:	2 weeks
2020-06-22 12:36:05 +00:00
Xin LI
65422c964a liblzma: Make liblzma use libmd implementation of SHA256.
MFC after:	2 weeks
PR:		200142
2020-06-20 21:32:07 +00:00
Warner Losh
c15320b6d9 Correct 1BSD release date.
The Quarter Century of Unix book said that 1BSD was released March 1979.
However, the 1BSD tape image that's on Kirk's historical unix collection has an
earlier date.

It was common practice, at the time, to create a new copy of the tape from the
master system when a new tape was to go out, so several different versions of
1BSD, etc were shipped from Berkerely. The date on the 1BSD tape in the Berkeley
archives on Kirk's DVD is dated in January 16 1979 on the label, and has dates
as late as Jan 29 (there's an UPDATE file that says this includes updates
through this date). Note this date as well.
2020-06-20 04:07:44 +00:00
Brandon Bergren
37f530582d [PowerPC] De-giant powermac_nvram, update documentation
* Remove the giant lock requirement from powermac_nvram.
* Update manual pages to reflect current state.

Reviewed by:	bcr (manpages), jhibbits
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D24812
2020-06-19 18:36:10 +00:00
Tom Jones
135a55149a Fix typo in apic.4
Reviewed by:	bcr (manpages)
Approved by:	jtl (co-mentor)
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D25357
2020-06-19 13:09:00 +00:00
Warner Losh
73a8c90026 The actual name for MMCCAM sd block devices is sdda.
Pointed out by: kibab@
2020-06-19 04:09:35 +00:00
Mark Johnston
95033af923 Add the SCTP_SUPPORT kernel option.
This is in preparation for enabling a loadable SCTP stack.  Analogous to
IPSEC/IPSEC_SUPPORT, the SCTP_SUPPORT kernel option must be configured
in order to support a loadable SCTP implementation.

Discussed with:	tuexen
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2020-06-18 19:32:34 +00:00
Adrian Chadd
70c8948af8 [ath] Mention DWDS, expresscard and minipcie.
I use all of these..
2020-06-17 03:16:20 +00:00
Adrian Chadd
dd1d42a94f [run] mention that some 11n functionality is now available.
A-MPDU, short-gi and 40MHz mode is currently not supported, but hey,
it supports enough 11n to be useful.
2020-06-17 03:12:43 +00:00
Sergey Kandaurov
6f5b118fe1 Complete a function block with Fc, no content change.
Notably, unbreaks rendering with groff.
2020-06-16 21:07:51 +00:00