Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC Broadcom 10Gb bxe driver
Merged r255736, r255861, r256299, r256341, r258187, r259928, r260113

Approved by: davidch (mentor)

MFC r252867:

Import HighPoint DC Series Data Center HBA (DC7280 and R750) driver.
This driver works for FreeBSD/i386 and FreeBSD/amd64 platforms.

Many thanks to HighPoint for providing this driver.

(This changeset have not included changes found in 249468 and 246713)

MFC r250963, r251013, r251056: Driver 'aacraid' added to support Adaptec by PMC RAID controller families Series 6, 7, 8 and upcoming products.

Approved by: emaste (co-mentor)

240618, 240621, 240633, 240671, 240672, 240697, 240700, 241433,
241434, 241657, 241658, 241659, 241660, 241661, 241662, 241663,
241664, 241665, 241689, 242420, 243951, 244410, 244411, 244413,
244549, 245136, 247963, 248729, 248730, 248731, 248732, 248733,
248734, 248735, 248736, 248737, 248738, 248739, 248740, 248741,
248746, 248747, 248748, 248749, 248754, 248755, 248756, 248757,
248758, 248759, 248760, 248761, 248762, 248763, 248764, 248765,
248766, 248767, 248768, 248769, 248770, 248771, 248772, 248773,
248780, 248834, 248835, 248913, 248977, 249067, 249416, 249417,
249418, 249419, 249420, 249421, 249422, 249432

MFC 247870:

Remove the virtio dependency entry for the VirtIO device drivers. This
will prevent the kernel from linking if the device driver are included
without the virtio module. Remove pci and scbus for the same reason.

Also explain the relationship and necessity of the virtio and virtio_pci
modules. Currently in FreeBSD, we only support VirtIO PCI, but it could
be replaced with a different interface (like MMIO) and the device
(network, block, etc) will still function.

Approved by: grehan (mentor)

partial MFC of rev=245362:
enable building virtio devices into static kernels.

I think the 'files.*' entries should be improved (also in HEAD) because
bringing up a vtnet device now requires 3 entries in your kernel config:
"device virtio, device virtio_pci, device vtnet"

but i'll leave the fix to a future commit.

This is also the reason not to enable the device in GENERIC kernels now.

MFC 239771: Fix misspelled "Infiniband".

MFC 233040,233198,233870,234183:
Add OFED and the associated options and drivers to x86 LINT builds:
- Fix build with INET6 disabled.
- Fix build of OFED bits with debugging options enabled.
- Fix build on i386.
- Mark 'sdp' as requiring 'inet'.
- Always include "opt_inet.h" and "opt_inet6.h" and modify the IB
driver Makefiles to honor WITH/WITHOUT_INET/INET6/_SUPPORT options
to determine what should be enabled during a module build.
- Fix the mlxen(4) driver and the core IB code to compile without
if INET is disabled (including when both INET and INET6 are disabled).

MFC 233872:
Add descriptions after the 'device' line for several NICs to match the
existing style.

MFC r232614:

Provide wbwd(4), a driver for the watchdog timer found on various
Winbond Super I/O chips.

MFC r233433
Disable detailed PV entry accounting by default. Add a config option
to enable it.

MFC r230843, r231134, r231136, r231137, r231296

Add isci(4) driver for amd64 and i386 targets.

The isci driver is for the integrated SAS controller in the Intel C600
(Patsburg) chipset. Source files in sys/dev/isci directory are
FreeBSD-specific, and sys/dev/isci/scil subdirectory contains
an OS-agnostic library (SCIL) published by Intel to control the SAS
controller. This library is used primarily as-is in this driver, with
some post-processing to better integrate into the kernel build
environment.

isci.4 and a README in the sys/dev/isci directory contain a few
additional details.

This driver is only built for amd64 and i386 targets.

Sponsored by: Intel
Reviewed by: scottl
Approved by: scottl

MFC r228940:

Import the first release of HighPoint RocketRAID 27xx SAS 6Gb/s HBA card
driver. This driver works for FreeBSD/i386 and FreeBSD/amd64 platforms.

Many thanks to HighPoint for providing this driver.

MFC r228431, r228502, r228802:
Add watchdog support for VIA south bridge chipset.
Tested on VT8251, VX900 but CX700, VX800, VX855 should works.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Add I2C bus driver for the AMD Geode LX series CS5536 Companion
Device.

Reviewed by: jhb (newbus bits only), adrian

Revert r216777, per jhb@

Comment out npx and isa from NOTES file. We don't need them here
since DEFAULTS already pulls them in.

Add support 'device tpm' for amd64.
Add tpm(4)'s default setting to /boot/defaults/loader.conf.
Add 'device tpm' to NOTES for amd64 and i386.

Discussed with: takawata
Approved by: imp (mentor)

Remove the acpi_aiboost driver. It has been replaced by aibs(4).

- Update 6000 firmware to 9.221.4.1
- Add 6050 firmware

MFC after: 2 weeks

Import the acpi_aibs(4) driver written by Constantine A. Murenin.
It has more features than acpi_aiboost(4) and it will eventually replace
acpi_aiboost(4).

Submitted by: Constantine A. Murenin <cnst at FreeBSD.org>
Reviewed by: freebsd-acpi, imp
MFC after: 1 month

Only enable kdtrace hook in the LINT on the architectures that implement it.

Make NKPT a kernel option on i386 so that it can be set to a non-default
value from kernel config files.

Tested by: Charles Sprickman spork of bway net
MFC after: 2 weeks

Update documentation for the iwn and iwnfw drivers: they support the 1000, 5150, 6000 and 6050 devices too, with firmware modules for the 4965, 1000, 5000, 5150 and 6000.

Add documentation for mwl and all the wireless firmware drivers.

Approved by: rrs (mentor)

Welcome drm support for VIA unichrome chips.

MFC after: 2 weeks

- Create a separate section in in the MI NOTES file for PCI wireless NIC
drivers and move bwi(4) there from the PCI Ethernet NIC section.
- Move ath(4) and ral(4) to the MI NOTES file.

Reviewed by: rpaulo

Remove comment claiming that building acpi into the kernel is deprecated.

PR: docs/141353
Submitted by: Bruce Cran
MFC after: 1 week

Fix cut'n paste on the AR9280 entry.

Submitted by: pluknet

Add missing ath_ar9* ath hal entries.

amdsbwd: new driver for AMD SB600/SB7xx watchdog timer

The hardware is compliant with WDRT specification, so I originally
considered including generic WDRT watchdog support, but decided
against it, because I couldn't find anyone to the code for me.
WDRT seems to be not very popular.
Besides, generic WDRT porbably requires a slightly different driver
approach.

Reviewed by: des, gavin, rpaulo
MFC after: 3 weeks

add amdtemp to i386 NOTES

essentially this is a MFamd64

Nod from: rpaulo

lindev(4) [1] is supposed to be a collection of linux-specific pseudo
devices that we also support, just not by default (thus only LINT or
module builds by default).

While currently there is only "/dev/full" [2], we are planning to see more
in the future. We may decide to change the module/dependency logic in the
future should the list grow too long.

This is not part of linux.ko as also non-linux binaries like kFreeBSD
userland or ports can make use of this as well.

Suggested by: rwatson [1] (name)
Submitted by: ed [2]
Discussed with: markm, ed, rwatson, kib (weeks ago)
Reviewed by: rwatson, brueffer (prev. version)
PR: kern/68961
MFC after: 6 weeks

Build x86bios only for i386/amd64 for now. More work is required
to make these functional on other architectures, and the current
code breaks sparc64 and powerpc.

Spotted by: tinderbox via des

Automatically depend on x86emu when vesa or dpms is being built into
kernel. With this change the user no longer need to remember building
this option.

Submitted by: swell.k at gmail.com

Enable s3pci on amd64 which works on top of VESA, and allow
static building it into kernel on i386 and amd64.

Submitted by: swell.k at gmail.com

- Teach vesa(4) and dpms(4) about x86emu. [1]
- Add vesa kernel options for amd64.
- Connect libvgl library and splash kernel modules to amd64 build.
- Connect manual page dpms(4) to amd64 build.
- Remove old vesa/dpms files.

Submitted by: paradox <ddkprog yahoo com> [1], swell k at gmail.com
(with some minor tweaks)

* Completely Remove the option STOP_NMI from the kernel. This option
has proven to have a good effect when entering KDB by using a NMI,
but it completely violates all the good rules about interrupts
disabled while holding a spinlock in other occasions. This can be the
cause of deadlocks on events where a normal IPI_STOP is expected.
* Adds an new IPI called IPI_STOP_HARD on all the supported architectures.
This IPI is responsible for sending a stop message among CPUs using a
privileged channel when disponible. In other cases it just does match a
normal IPI_STOP.
Right now the IPI_STOP_HARD functionality uses a NMI on ia32 and amd64
architectures, while on the other has a normal IPI_STOP effect. It is
responsibility of maintainers to eventually implement an hard stop
when necessary and possible.
* Use the new IPI facility in order to implement a new userend SMP kernel
function called stop_cpus_hard(). That is specular to stop_cpu() but
it does use the privileged channel for the stopping facility.
* Let KDB use the newly introduced function stop_cpus_hard() and leave
stop_cpus() for all the other cases
* Disable interrupts on CPU0 when starting the process of APs suspension.
* Style cleanup and comments adding

This patch should fix the reboot/shutdown deadlocks many users are
constantly reporting on mailing lists.

Please don't forget to update your config file with the STOP_NMI
option removal

Reviewed by: jhb
Tested by: pho, bz, rink
Approved by: re (kib)

* Driver for ACPI WMI (Windows Management Instrumentation)
* Driver for ACPI HP extra functionations, which required
ACPI WMI driver.

Submitted by: Michael <freebsdusb at bindone.de>
Approved by: re
MFC after: 2 weeks

Rewrite OsdSynch.c to reflect the latest ACPICA more closely:

- Implement ACPI semaphore (ACPI_SEMAPHORE) with condvar(9) and mutex(9).
- Implement ACPI mutex (ACPI_MUTEX) with mutex(9).
- Implement ACPI lock (ACPI_SPINLOCK) with spin mutex(9).

- Use "device\t" and "options \t" for consistency.

Remove IFF_NEEDSGIANT, a compatibility infrastructure introduced
in FreeBSD 5.x to allow network device drivers to run with Giant
despite the network stack being Giant-free. This significantly
simplifies calls into ioctl() on network interfaces, especially
in the multicast code, as well as eliminates deferred invocation
of interface if_start routines.

Disable the build on device drivers still depending on
IFF_NEEDSGIANT as they no longer compile. They will be removed
in a few weeks if they haven't been made MPSAFE in that time.
Disabled drivers:

if_ar
if_axe
if_aue
if_cdce
if_cue
if_kue
if_ray
if_rue
if_rum
if_sr
if_udav
if_ural
if_zyd

Drivers that were already disabled because of tty changes:

if_ppp
if_sl

Discussed on: arch@

Reenable ndis in the LINT build now that it has been updated for USB. Thanks to
HPS and Weongyo.

Exclude ndis from the LINT build as it currently breaks the build, patches to
move to the new usb stack are in progress.

si(4) seems to build without a problem. However, since noone noticed lack
of this driver, put it in a comment.

Tidy NOTES a bit:
- leave pmtimer comment that is common to other architectures.
- bring pbio explanation to the block comment relating to other
drivers in the same block.

Comment about ural(4) isn't approprate here, since the driver is present in
global NOTES file.

cx(4) driver isn't present in this file, though it could be. However, cx(4)
seems to be more or less dead -- it hasn't been linked to the modules build,
and after TTY-ng transformations it doesn't compile.

Remove it until cx(4) is broken.

Fix AGP debugging code:
- correct format strings
- fill opt_agp.h if AGP_DEBUG is defined
- bring AGP_DEBUG to LINT by mentioning it in NOTES

This should hopefully fix a warning that was...

Found by: Coverity Prevent(tm)
CID: 3676
Tested on: amd64, i386

Switch to ath hal source code. Note this removes the ath_hal
module; the ath module now brings in the hal support. Kernel
config files are almost backwards compatible; supplying

device ath_hal

gives you the same chip support that the binary hal did but you
must also include

options AH_SUPPORT_AR5416

to enable the extended format descriptors used by 11n parts.
It is now possible to control the chip support included in a
build by specifying exactly which chips are to be supported
in the config file; consult ath_hal(4) for information.

Remove the entry from the i386 specific NOTES as it is in the generic
NOTES file as well. This avoids one of the warnings from

make LINT && config LINT

Resurrect the sbni(4) driver. Someone finally tested the MPSAFE patches and
the driver worked ok with them.

Tested by: friends of yar

Add a very simple dpms(4) driver that uses the VESA BIOS DPMS calls to
turn off the external display during suspend and restore it to its
original state on resume.

MFC after: 2 weeks

Add glxsb(4) driver for the Security Block in AMD Geode LX processors (as
found in Soekris hardware, for instance). The hardware supports acceleration
of AES-128-CBC accessible through crypto(4) and supplies entropy to random(4).

TODO:

o Implement rndtest(4) support
o Performance enhancements

Submitted by: Patrick Lamaizière <patfbsd -at- davenulle.org>
Reviewed by: jhb, sam
MFC after: 1 week

- Add cpuctl(4) pseudo-device driver to provide access to some low-level
features of CPUs like reading/writing machine-specific registers,
retrieving cpuid data, and updating microcode.
- Add cpucontrol(8) utility, that provides userland access to
the features of cpuctl(4).
- Add subsequent manpages.

The cpuctl(4) device operates as follows. The pseudo-device node cpuctlX
is created for each cpu present in the systems. The pseudo-device minor
number corresponds to the cpu number in the system. The cpuctl(4) pseudo-
device allows a number of ioctl to be preformed, namely RDMSR/WRMSR/CPUID
and UPDATE. The first pair alows the caller to read/write machine-specific
registers from the correspondent CPU. cpuid data could be retrieved using
the CPUID call, and microcode updates are applied via UPDATE.

The permissions are inforced based on the pseudo-device file permissions.
RDMSR/CPUID will be allowed when the caller has read access to the device
node, while WRMSR/UPDATE will be granted only when the node is opened
for writing. There're also a number of priv(9) checks.

The cpucontrol(8) utility is intened to provide userland access to
the cpuctl(4) device features. The utility also allows one to apply
cpu microcode updates.

Currently only Intel and AMD cpus are supported and were tested.

Approved by: kib
Reviewed by: rpaulo, cokane, Peter Jeremy
MFC after: 1 month

Disconnect drivers that haven't been ported to MPSAFE TTY yet.

As clearly mentioned on the mailing lists, there is a list of drivers
that have not been ported to the MPSAFE TTY layer yet. Remove them from
the kernel configuration files. This means people can now still use
these drivers if they explicitly put them in their kernel configuration
file, which is good.

People should keep in mind that after August 10, these drivers will not
work anymore. Even though owners of the hardware are capable of getting
these drivers working again, I will see if I can at least get them to a
compilable state (if time permits).

Remove the sbni(4) driver. No one responded to calls to test it on
current@ and stable@.

Remove the oltr(4) driver. No one responded to calls for testing on
current@ and stable@ for the locking patches. The driver can always be
revived if someone tests it.

This driver also sleeps in its if_init routine, so it likely doesn't really
work at all anyway in modern releases.

Remove the arl(4) driver. It is reported to not work on 6.x or later
even though the driver hasn't changed since 4.x (last known working
release).

Remove obselete PECOFF image activator support.

PRs assigned at the time of removal: kern/80742

Discussed on: freebsd-current (silence), IRC
Tested by: make universe
Approved by: cognet (mentor)

Remove ISDN4BSD (I4B) from HEAD as it is not MPSAFE and
parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.

This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation

Discussed with: rwatson, re

Intel 4965 wireless driver (derived from openbsd driver of the same name)

Back in the good old days, PC's had random pieces of rock for
frequency generation and what frequency the generated was anyones
guess.

In general the 32.768kHz RTC clock x-tal was the best, because that
was a regular wrist-watch Xtal, whereas the X-tal generating the
ISA bus frequency was much lower quality, often costing as much as
several cents a piece, so it made good sense to check the ISA bus
frequency against the RTC clock.

The other relevant property of those machines, is that they
typically had no more than 16MB RAM.

These days, CPU chips croak if their clocks are not tightly within
specs and all necessary frequencies are derived from the master
crystal by means if PLL's.

Considering that it takes on average 1.5 second to calibrate the
frequency of the i8254 counter, that more likely than not, we will
not actually use the result of the calibration, and as the final
clincher, we seldom use the i8254 for anything besides BEL in
syscons anyway, it has become time to drop the calibration code.

If you need to tell the system what frequency your i8254 runs,
you can do so from the loader using hw.i8254.freq or using the
sysctl kern.timecounter.tc.i8254.frequency.

Belatedly add BPF_JITTER in NOTES for supported architectures.

Remove the rr232x driver. It has been superceded by the hptrr driver.

Add asmc(4).

Requested by: njl (mentor)

Add the 'hptrr' driver for supporting the following Highpoint RocketRAID
cards:

o RocketRAID 172x series
o RocketRAID 174x series
o RocketRAID 2210
o RocketRAID 222x series
o RocketRAID 2240
o RocketRAID 230x series
o RocketRAID 231x series
o RocketRAID 232x series
o RocketRAID 2340
o RocketRAID 2522

Many thanks to Highpoint for their continued support of FreeBSD.

Submitted by: Highpoint

Remove XRPU driver, after asking all the users.

Link wpi(4) into the build.

This includes:
o mtree (for legal/intel_wpi)
o manpage for i386/amd64 archs
o module for i386/amd64 archs
o NOTES for i386/amd64 archs

Approved by: mlaier (comentor)

Move nvram out of DEFAULTS. There really isn't a lot of justification
for consuming the memory. The module works just fine in the unlikely
case that this is needed. It can still be compiled into a custom kernel.

Add a driver for the on-die digital thermal sensor found on Intel Core
and newer CPUs (including Core 2 and Core / Core 2 based Xeons). The
driver attaches to each cpu device and creates a sysctl node in that
device's sysctl context (dev.cpu.N.temperature). When invoked, the
handler binds to the appropriate CPU to ensure a correct reading.

Submitted by: Rui Paulo <rpaulo@fnop.net>
Sponsored by: Google Summer of Code 2007
Tested by: des, marcus, Constantine A. Murenin, Ian FREISLICH
Approved by: re (kensmith)
MFC after: 3 weeks

Temporary disconnect i4bing, i4bisppp and i4bipr from the build for
the 7.0 timeframe.

This is needed because I4B is not locked and NET_NEEDS_GIANT goes away.

The plan is to lock I4B and bring everything back for 7.1.

Approved by: re (kensmith)

Revert previous commit, retaining cpufreq.

Approved by: re (implicitly)

Add cpufreq(4) to GENERIC. It does not change the frequency by default,
so systems should be relatively unaffected. Users can then simply enable
powerd(8) in rc.conf to take advantage of it.

Approved by: re

It turns out that the hptiop driver isn't portable after all. Confine it to
amd64 and i386 for now.

Catch up with ACPI-CA 20070320 import.

Fix Typo.

Pointed out by: ru

Add conf file entries for acpi_aiboost drivers.

Move "device splash" back to MI NOTES and "files", it's MI.

Move more MD devices and options out of MI NOTES.

The VGA_DEBUG option only exists on {amd64,i386,ia64}.
Also remove 'device io' from amd64 NOTES; DEFAULTS takes care of it.

Remove references to pccard.conf

Update the ipmi(4) driver:
- Split out the communication protocols into their own files and use
a couple of function pointers in the softc that the commuication
protocols setup in their own attach routine.
- Add support for the SSIF interface (talking to IPMI over SMBus).
- Add an ACPI attachment.
- Add a PCI attachment that attaches to devices with the IPMI interface
subclass.
- Split the ISA attachment out into its own file: ipmi_isa.c.
- Change the code to probe the SMBIOS table for an IPMI entry to just use
pmap_mapbios() to map the table in rather than trying to setup a fake
resource on an isa device and then activating the resource to map in the
table.
- Make bus attachments leaner by adding attach functions for each
communication interface (ipmi_kcs_attach(), ipmi_smic_attach(), etc.)
that setup per-interface data.
- Formalize the model used by the driver to handle requests by adding an
explicit struct ipmi_request object that holds the state of a given
request and reply for the entire lifetime of the request. By bundling
the request into an object, it is easier to add retry logic to the various
communication backends (as well as eventually support BT mode which uses
a slightly different message format than KCS, SMIC, and SSIF).
- Add a per-softc lock and remove D_NEEDGIANT as the driver is now MPSAFE.
- Add 32-bit compatibility ioctl shims so you can use a 32-bit ipmitool
on FreeBSD/amd64.
- Add ipmi(4) to i386 and amd64 NOTES.

Submitted by: ambrisko (large portions of 2 and 3)
Sponsored by: IronPort Systems, Yahoo!
MFC after: 6 days

document that PAE kernels needs twice the value of non-PAE kernels
for KVA_PAGES, and that it it likely needed for >4GB memory boxes..

MFC after: 3 days

Remove sio(4) and related options from MI files to amd64, i386
and pc98 MD files. Remove nodevice and nooption lines specific
to sio(4) from ia64, powerpc and sparc64 NOTES. There were no
such lines for arm yet.
sio(4) is usable on less than half the platforms, not counting
a future mips platform. Its presence in MI files is therefore
increasingly becoming a burden.

Add a pure open source nForce Ethernet driver, under BSDL.
This driver was ported from OpenBSD by Shigeaki Tagashira
<shigeaki@se.hiroshima-u.ac.jp> and posted at
http://www.se.hiroshima-u.ac.jp/~shigeaki/software/freebsd-nfe.html
It was additionally cleaned up by me.
It is still a work-in-progress and thus is purposefully not in GENERIC.
And it conflicts with nve(4), so only one should be loaded.

Enable a few more things in x86 NOTES to get broader LINT coverage:
- Turn on iwi(4), ipw(4), and ndis(4) on amd64 and i386.
- Turn on ral(4) and ural(4) on i386, pc98, and amd64.

- Add C-bus and ISA front-ends for le(4) so it can actually replace
lnc(4) on PC98 and i386. The ISA front-end supports the same non-PNP
network cards as lnc(4) did and additionally a couple of PNP ones.
Like lnc(4), the C-bus front-end of le(4) only supports C-NET(98)S
and is untested due to lack of such hardware, but given that's it's
based on the respective lnc(4) and not too different from the ISA
front-end it should be highly likely to work.
- Remove the descriptions of le(4), which where converted from lnc(4),
from sys/i386/conf/NOTES and sys/pc98/conf/NOTES as there's a common
one in sys/conf/NOTES.

Send the pcvt(4) driver off to retirement.

Prefer the le device driver for Lance (AMD7990 et al) hardware over the
older, and less capable lnc driver.

Reviewed by: imp

Add in linsysfs. A linux 2.6 like sys filesystem to pacify the Linux
LSI MegaRAID SAS utility.

Sponsored by: IronPort Systems
Man page help from: brueffer

o Add acpi_ibm to the build.

PR: kern/96940
Submitted by: Rong-En Fan

Add the rr232x driver to the default kernels.

Import ACPI Dock Station support. Note that this is still very young.
Additional detach implementaions (or maybe improvement) for other
deivce drivers is required.

Reviewed by: njl, imp
MFC after: 1 week

Take the functionality contained in the former "options TDFX_LINUX"
into a separate module. Accordingly, convert the option into a device
named similarly.

Note for MFC: Perhaps the option should stay in RELENG_6 for POLA reasons.

Suggested by: scottl
Reviewed by: cokane
MFC after: 5 days

Move asr driver from global NOTES to i386-specific NOTES. Requestor
reports it is neither endian-clean or 64-bit clean. :-)

Requested by: scottl

Attach ce(4) to the build.

MFC after: 3 days

Move device 'cs' into i386/pc98 specific NOTES. It is broken on ppc
because it uses i386 specific calls. Maybe it could be added to
amd64, but I'm not so sure it would work there so I've not added it
there.

Merge DRM CVS as of 2005-12-02, adding i915 DRM support thanks to Alexey Popov,
and a new r300 PCI ID.

Update DRM to CVS snapshot as of 2005-11-28. Notable changes:
- S3 Savage driver ported.
- Added support for ATI_fragment_shader registers for r200.
- Improved r300 support, needed for latest r300 DRI driver.
- (possibly) r300 PCIE support, needs X.Org server from CVS.
- Added support for PCI Matrox cards.
- Software fallbacks fixed for Rage 128, which used to render badly or hang.
- Some issues reported by WITNESS are fixed.
- i915 module Makefile added, as the driver may now be working, but is untested.
- Added scripts for copying and preprocessing DRM CVS for inclusion in the
kernel. Thanks to Daniel Stone for getting me started on that.

- Allow duplicate "machine" directives with the same arguments.
- Move existing "machine" directives to DEFAULTS.

Make COUNT_IPIS and COUNT_XINVLTLB_HITS real kernel options and take
them out of machine/smptests.h.

Add xbox associated options/devices to LINT.

Submitted by: Rink P.W. Springer

Remove obsolete options

Hook nve(4) up in i386 and amd64 NOTES.

MFC after: 1 week

Rename the KDB_STOP_NMI kernel option to STOP_NMI and make it apply to all
IPI_STOP IPIs.
- Change the i386 and amd64 MD IPI code to send an NMI if STOP_NMI is
enabled if an attempt is made to send an IPI_STOP IPI. If the kernel
option is enabled, there is also a sysctl to change the behavior at
runtime (debug.stop_cpus_with_nmi which defaults to enabled). This
includes removing stop_cpus_nmi() and making ipi_nmi_selected() a
private function for i386 and amd64.
- Fix ipi_all(), ipi_all_but_self(), and ipi_self() on i386 and amd64 to
properly handle bitmapped IPIs as well as IPI_STOP IPIs when STOP_NMI is
enabled.
- Fix ipi_nmi_handler() to execute the restart function on the first CPU
that is restarted making use of atomic_readandclear() rather than
assuming that the BSP is always included in the set of restarted CPUs.
Also, the NMI handler didn't clear the function pointer meaning that
subsequent stop and restarts could execute the function again.
- Define a new macro HAVE_STOPPEDPCBS on i386 and amd64 to control the use
of stoppedpcbs[] and always enable it for i386 and amd64 instead of
being dependent on KDB_STOP_NMI. It works fine in both the NMI and
non-NMI cases.

Remove the sx(4) driver at the request of the author. The author
originally wrote it for 4.x and hasn't really had the time to fully update
it to 5.x and later. Also, the author doesn't use the hardware anymore as
well. If someone does need this driver they can always resurrect it from
the Attic.

Requested by: Frank Mayhar frank at exit dot com

Sort ath_rate_* entries. Mark ath_rate_sample as the desired algorithm.

Discussed with: sam

Polling is now configured with help of ifconfig(8), not sysctl.

Prodded by: maxim

Remove the el(4) driver for 3Com 3c501 ISA NICs from HEAD as threatened
earlier as no one has stepped up to test recent changes to the driver.
Oddly, the module was actually turned on on ia64 though I'm fairly certain
that no ia64 machine has ever had or will ever have an ISA slot.

Axe borrowed from: phk

Add the latest r300 code from r300.sf.net. This is based on the patch supplied
by Vladimir Dergachev for inclusion in DRM CVS, with minor modifications for
FreeBSD CVS and the appropriate license from Nicolai Haehnle on r300_reg.h.
Fixes hangs when using r300.sf.net userland, tested on a Radeon 9600 on amd64.

Add entries for smbios, smapi and vpd drivers.

Remove the CPU_ENABLE_SSE option from the i386 and pc98 architectures,
as they are already default for I686_CPU for almost 3 years, and
CPU_DISABLE_SSE always disables it. On the other hand, CPU_ENABLE_SSE
does not work for I486_CPU and I586_CPU.

This commit has:
- Removed the option from conf/options.*
- Removed the option and comments from MD NOTES files
- Simplified the CPU_ENABLE_SSE ifdef's so they don't
deal with CPU_ENABLE_SSE from kernel configuration. (*)

For most users, this commit should be largely no-op. If you used to
place CPU_ENABLE_SSE into your kernel configuration for some reason,
it is time to remove it.

(*) The ifdef's of CPU_ENABLE_SSE are not removed at this point, since
we need to change it to !defined(CPU_DISABLE_SSE) && defined(I686_CPU),
not just !defined(CPU_DISABLE_SSE), if we really want to do so.

Discussed on: -arch
Approved by: re (scottl)

Connect reiserfs build to every platforms, not only i386 and pc98.

Reviewed by: mux (mentor)
Approved by: re (dougb)

Move IPI_PREEMPTION option from global NOTES file to i386+amd64 specific
NOTES files.

Approved by: re (scottl)

- Move the REISERFS option in the MD NOTES file for i386, it doesn't
exist on other architectures yet.
- While I'm here, fix the formatting of the options line. The keyword
"options" should be followed by a space and then a tab, not 2 tabs.

Implement an alternate method to stop CPUs when entering DDB. Normally we use
a regular IPI vector, but this vector is blocked when interrupts are disabled.
With "options KDB_STOP_NMI" and debug.kdb.stop_cpus_with_nmi set, KDB will
send an NMI to each CPU instead. The code also has a context-stuffing
feature which helps ddb extract the state of processes running on the
stopped CPUs.

KDB_STOP_NMI is only useful with SMP and complains if SMP is not defined.
This feature only applies to i386 and amd64 at the moment, but could be
used on other architectures with the appropriate MD bits.

Submitted by: ups

Remove obsolete option.

MFC after: 1 day

Revert previous commit: The hwpmc(4) driver compiles on all platforms.

Move this to the specific architectures that are supported. #ifdef foo
in sys/pmc.h precludes it from working on !i386, !amd64. When that changes,
it can be moved back into conf/NOTES.

Update to DRM CVS as of 2005-04-12, bringing many changes:
- Split core DRM routines back into their own module, rather than using the
nasty templated system like before.
- Development-class R300 support in radeon driver (requires userland pieces, of
course).
- Mach64 driver (haven't tested in a while -- my mach64s no longer fit in the
testbox). Covers Rage Pros, Rage Mobility P/M, Rage XL, and some others.
- i915 driver files, which just need to get drm_drv.c fixed to allow attachment
to the drmsub device. Covers i830 through i915 integrated graphics.
- savage driver files, which should require minimal changes to work. Covers the
Savage3D, Savage IX/MX, Savage 4, ProSavage.
- Support for color and texture tiling and HyperZ features of Radeon.

Thanks to: scottl (much p4 handholding)
Jung-uk Kim (helpful prodding)
PR: [1] kern/76879, [2] kern/72548
Submitted by: [1] Alex, lesha at intercaf dot ru
[2] Shaun Jurrens, shaun at shamz dot net

Really remove the last vestiges of mixed mode from all but amd64.

Oops, remove last mention of mixed mode.

Prodded by: marks

Glue the arcmsr driver into the tree.

Hook acpi_fujitsu up to the build.

Forgotten by: philip

Bring back some of the ioctl junk that was removed in rev 1.59 as a
i386-only kernel option, ASR_COMPAT, and under BURN_BRIDGES.
It is really ugly, but raidutils depends on it.

Discussed with: scottl

SampleRate rate control algorithm for the ath driver

Submitted by: John Bicket

Spell "options" correctly as "options ".

Connect "options MP_WATCHDOG" to the LINT builds.

Remove recently added note about DEVICE_POLLING not working with SMP.
Remove warning from kern_poll.c to allow DEVICE_POLLING to be built with SMP.

Discussed with: ru, glebius

Remove acpi_perf from {ARCH}/conf/NOTES, to make tinderbox happy.

Reported by: tinderbox
Inspired by: acpi_perf build structure removal commit

Also remove CPU_ENABLE_TCC from the NOTES build.

Remove CPU_ENABLE_TCC and hook the cpufreq p4tcc up to the build.

According to kern_poll.c, you cannot use DEVICE_POLLING with SMP. Add a
commen about this in every NOTES file which lists DEVICE_POLLING.

PR: 46793
MFC: 1 day

Break out obscure ISA cards into their own files, as well as ne2000
and wd80x3 support. Make the obscure ISA cards optional, and add
those options to NOTES on i386 (note: the ifdef around the whole code
is for module building). Tweak pc98 ed support to include wd80x3 too.
Add goo for alpha too.

The affected cards are the 3Com 3C503, HP LAN+ and SIC (whatever that
is). I couldn't find any of these for sale on ebay, so they are
untested. If you have one of these cards, and send it to me, I'll
ensure that you have no future problems with it...

Minor cleanups as well by using functions rather than cut and paste
code for some probing operations (where the function call overhead is
lost in the noise).

Remove use of kvtop, since they aren't required anymore. This driver
needs to get its memory mapped act together, however, and use bus
space. It doesn't right now.

This reduces the size of if_ed.ko from about 51k to 33k on my laptop.

Build cpufreq and acpi_perf on platforms that are likely to be able to
use them.

Fix a comment to match reality.

add ath rate control module(s)

Initiate deorbit burn sequence for 80386 support in FreeBSD: Remove
80386 (I386_CPU) support from the kernel.

Add acpi_sony to the list of drivers that are built.

Hook the hptmv driver up to the build.

Port pbio to HEAD.

OK'd by: dds

Kill count device support from config. I've changed the last few
remaining consumers to have the count passed as an option. This is
i4b, pc98/wdc, and coda.

Bump configvers.h from 500013 to 600000.

Remove heuristics that tried to parse "device ed5" as 5 units of the ed
device. This broke things like the snd_emu10k1 device, which required
quotes to make it parse right. The no-longer-needed quotes have been
removed from NOTES, GENERIC etc. eg, I've removed the quotes from:
device snd_maestro
device "snd_maestro3"
device snd_mss

I believe everything will still compile and work after this.

Add a section for hardware watchdog timers, initially populated by ichwd.

MFC after: 3 days

My recent measurement shows that CPU_DISABLE_CMPXCHG is no longer necessary
with VmWare 4.x. At least with VmWare version 4.5.2, i386 version of
atomic_cmpset_int() is about 30 times slower than non-i386 version. It
makes this delta a good 5.3 MFC candidate, since otherwise it will
mislead users who run FreeBSD under modern VmWare otherwise.

Unconditionally support the AMD64 GART HW.

AMD64 on-CPU GART support.
This also applies to AMD64 HW running 'i386' OS.

Submitted by: Jung-uk Kim <jkim@niksun.com>
Integration by: obrien

Break out the MI part of the /dev/[k]mem and /dev/io drivers into
their own directory and module, leaving the MD parts in the MD
area (the MD parts _are_ part of the modules). /dev/mem and /dev/io
are now loadable modules, thus taking us one step further towards
a kernel created entirely out of modules. Of course, there is nothing
preventing the kernel from having these statically compiled.

Add the ACPI Panasonic extras driver.

Submitted by: OGAWA Takaya <t-ogawa@triaez.kaisei.org> and nyan

Desupport M-Systems DiskOnChip driver "fla"

Remove stray i386 math emulator references.

As per discussion at today's developer summit, add a comment to NOTES
indicating that 80386 support is deprecated and will be removed in
6.0-RELEASE.

Ok'd by: rwatson, scottl

el(4) stopped needing to me a count device in December 2000.

Fix a couple of typos.

PR: doc/67894
Submitted by: Chris Pepper pepper at reppep dot com

Add Cronyx Tau-PCI sync WAN adapters family entry.

Spell Cronyx Tau and Sigma families correctly.

MFC after: 3 days

Switch to using the moved cy driver (adjust pathnames and remove "count"
parameter).

Keep using it only in the i386 NOTES for now. It is fairly MI, but it
doesn't use bus-space and has a couple of i386 i/o instructions in pci
intitialization.

Add the ACPI Asus extras driver. Provides support for cool ACPI-controled
gadgets (hotkeys, lcd, ...) on Asus laptops. I aim to closely track the
acpi4asus project which implements these features in the Linux kernel.

If this breaks your laptop, please let me know how it does it :-)

Approved by: njl (mentor)

Improve comment (SMB bus -> System Management Bus)

Move ENABLE_ALART to proper place.

Submitted by: bde

Add note that npx depends on isa.

Approved by: green

sx was randomly added to NOTES. Instead, place it in the misc
hardware in properly sorted order. Fix a little disorder while I'm
here.

Submitted by: bde

Enable the sx driver on i386 and pc98.

Move sx to i386/NOTES for the moment. I missed the
enable/disable_intr() in the code.

Uncomment the cy driver since it works again.

Moved 3ware 9000 driver (twa) stuff from sys/conf/NOTES to /sys/i386/conf/NOTES.

Add arl(4): driver for Aironet Arlan 655 wireless adapters.

MFC after: 2 weeks

Remove isa compat stuff.

Only cy, bs and wd in the tree still use it. I have a replacement for
cy that I need to test on ISA and PCI cards. bs and wd are pc98 only
drivers that appear to no longer be necessary. I'll be removing them
when I hear back from the pc98 people.

Comment out the cy driver until I can make sure that the new cy driver
I have for it works.

The gsc driver uses the old COMPAT_ISA api. Retire it so we can
retire the COMPAT_ISA shims. If someone were to redo this driver with
the new APIs and test it, it can return.

The rdp driver uses the COMPAT_OLD api. This is being retired, so
this driver is being retired. Remove it from the tree. If someone
wants to update it to the latest APIs and can test the hardware, it
can return to the tree.

The spigot driver uses the old COMPAT_ISA interface. Retire it since
that's going away soon. Should someone reimplement it using modern
APIs and can test the driver, it can return.

The le driver uses ISA_COMPAT, which is going away soon. Retire it
and releated files. If someone wants to fix it to use the new APIs
and test it, it can be brought back.

stl and stli use the old COMPAT_ISA api. slt also uses the really old
COMPAT_PCI api. This API is going away, so this driver is going away
also.

If users are interested in updating this, please contact the author
since he has some preliminary work to move this to newer APIs.

Remove gp driver. It uses the old COMPAT_ISA shims.

If this driver is rewritten using newer APIs it can return.

Remove ctx driver. another scanner. This one uses COMPAT_ISA shims
which is going away soon.

If someone updates this to the latest APIs and tests it, it can return.

Remove asc driver, support for GI1904 based hand scanners. This
driver uses COMPAT_ISA shims, and those shims are going away.

It can be brought back if someone updates it to the latest APIs, and
moves it to the appropriate place in the tree.

Should have committed this with other wt driver removal commit.
Remove the wt driver from LINT.

If the wt driver is updated to the new apis, it can return.

Fixed some English usage errors.

Fixed description of cx device. Use similar wording for ctau device
(NETGRAPH_CRONYX toggles NETGRAPH support for both). Fixed formatting
of description of cx device.

Discussed with: rik

Remove the phantom 'nv' driver again.

Document that ENABLE_ALART controls the alarm on Intel intpm driver.

Submitted by: peter

Add ctau (Cronyx/Tau-ISA) device driver entry.

Approved by: imp (mentor)

Finish the removal of the 'nv' device reference.

Opps, nv(4) isn't committed yet. Comment out.

Finish fixing style problems in my previous commit.

Pointed out by: bde

In the descrption of network interfaces:
- use consistent formatting (no tabs)
- improved wording for cx and oltr.

Whitespace fixes.

Add the ACPI standard video extensions driver. I've done some style cleanup
but a bit more reamins to be done. For now, it is usable.

Submitted by: Taku YAMAMOTO <taku@cent.saitama-u.ac.jp>

Fixed the latest unsortings of CPU_ENABLE_*.

Add missed CPU_ENABLE_LONGRON.

Submitted by: Jon Noack <noackjr@alumni.rice.edu>

Updates cx driver information (Cronyx-Sigma)
Approved by: imp (mentor)

Fix typos and remove whitespace at EOL.

Move LongRun support out of identcpu.c, where it hardly belongs, into its
own file and make it opt-in, not mandatory, depending on CPU_ENABLE_LONGRUN
config(8) option.

Discussed with: nate
MFC after: 2 weeks

- Move performance-controlling sysctls into hw.p4tcc.* tree;

Suggested by: nate

- get rid of "magick" values in code and make sysctl's reflecting reality
on processor versions which have one or another frequency "forbidden"
due to errata.

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after: 2 weeks

Fixed misplacement and bitrot in the cy driver's configuration in
rev.1.1040. It is a miscellaneous isa+pci driver, but came back
described as a pci-only driver and placed in an i4b pci subsection
after its migration to /sys/conf/NOTES. Put it back where it used to
be, fully unsorted in the `Miscellaneous hardware' section. Reduced
nearby disorder in this section by moving configuration of the digi
driver to where it was for the old digiboard drivers, so that the
order at least matches the order in the table of contents.

Removed some garbage comments:
- references to removed math emulators for NPX_DEBUG
- header for the null set of mandatory devices
- reference to the removed (and bogus when it existed) sysctl
kern.timecounter.method.

Fixed formatting of sentence breaks. Use 2 spaces for all of them instead
of for about 3/4 of them.

FIxed unsorting in previous commit (description of CPU_ENABLE_TCC).

FIxed some nearby disorder (descriptions of CPU_BLUELIGHTNING_3X,
CPU_DIRECT_MAPPED_CACHE, CPU_DISABLE_CMPXCHG, CPU_DISABLE_SSE,
CPU_ELAN_XTAL and CPU_SOEKRIS, and options for all of these except
CPU_DIRECT_MAPPED_CACHE).

Add new CPU_ENABLE_TCC option, from NOTES:

CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some
Pentium(tm) 4 and (possibly) later CPUs. When enabled and detected,
TCC allows to restrict power consumption by using machdep.cpuperf*
sysctls. This operates independently of SpeedStep and is useful on
systems where other mechanisms such as apm(4) or acpi(4) don't work.

Given the fact that many, even modern, notebooks don't work properly
with Intel ACPI, this is indeed very useful option for notebook owners.

Obtained from: OpenBSD
MFC after: 2 weeks

Update list of device drivers that support polling.
Remove redundancy in NOTES.

PR: docs/61195
Submitted by: Xin LI <delphij@frontfree.net>
Approved by: blackend (mentor)
MFC after: 1 week

Add the ACPI Toshiba extras driver (hotkeys, LCD backlight, video output,
forced fan control, and CPU throttling).

Submitted by: Hiroyuki Aizu <aizu@navi.org>

Hook the CPU_GEODE option up.

This option is mandatory on platforms like the Soekris 4801 because the
i8254 hardware is buggy.

Garbage-collected CLK_USE_TSC_CALIBRATION.

i386/conf/NOTES, pc98/conf/NOTES:
Fixed the descriptions of the other CLK_* options.

The dgb driver is redundant with the digi driver in the tree. It uses
lots of old interfaces, and digi now supports all cards that dgb
supported. The author of the driver says that this is no longer
necessary.

Approved by: babkin@

First part of the removal of drivers for hardware that isn't relevant
or whose drivers haven't even compiled for years.

The loran hardware was very unique, and only a few copies of it ever
existed. It used the old COMPAT_ISA_DRIVER and when the author was
contacted, he indicated that he had no intention of ever updating this
driver and it was no longer relevant to the FreeBSD world and can be
removed without impact to anybody.

Approved by: phk

Fix yet an oversight in my ELAN_* to CPU_ELAN_* debrucification commit.

Approved by: re@

Connect the cx driver to its new location in the tree.
Update notes to reflect that cx is no longer a counted device
Update options for new cx option
# commented out ELAN_PPS and ELAN_XTAL since they produced errors

Submitted by: rik@cronyx.ru
Approved by: re@ <scottl>

Disable probing of HTT CPUs by default for the MP Table case. HTT CPUs
should only be used if they are enabled in the BIOS. Now that we support
enumerating CPUs using the ACPI MADT, any HTT machine using ACPI should
respect the BIOS setting. For HTT machines with ACPI disabled in the
kernel, the MPTABLE_FORCE_HTT kernel option can be used to try to probe HTT
CPUs like have done in the past for the MP Table case. This option should
only be enabled if HTT is enabled in the BIOS.

- Remove empty rogue SMP hardware section.
- Add some additional comments about 'device apic' to note that it can be
used in both UP and SMP kernels but is required for SMP kernels.

Use the same style of paragraph indention that the rest of NOTES uses in
the SMP section.

Axe rotted comment about MP Tables and PCI cards with built in bridges.
Now that we properly route PCI interrupts for the apic case, these cards
are no longer a problem.

Update a comment related to SMP and describe the NO_MIXED_MODE kernel
option.

Requested by: bde

Replace APIC_IO with 'device apic'.

Introduce new CPU_SOEKRIS option to tell soekris hardware from other
hardware based on similar chipsets.

Change the reset video option to be positive (hw.acpi.reset_video).
Requested by: jhb

Initialize the real mode stack. This is needed at least for the return
address from the lcall.
Requested by: takawata

Fix style bugs in acpi_wakecode.S
Requested by: bde

Remove the kernel option now that we have the tunable.

Alphabetical order for ACPI options broken by adding ACPI_NO_RESET_VIDEO.
Add short comment about ACPI_NO_RESET_VIDEO into NOTES.

Pointed-out by: njl

Add kernel option ACPI_NO_RESET_VIDEO as workaround for problems
(e.g. LCD white-out after resume) on some machine cased by
re-initialize video BIOS code in acpi_wakecode.

Fix style problems with new options.

Requested by: bde

Add the ACPICA_PEDANTIC option which is off by default. Enabling it will
enable strict checks of the AML. Our default behavior will be to relax
checks to work on as many platforms as possible. Also clean up and document
other ACPI options while I'm here.

add Atheros driver

Hook the SiS DRM up to the build

Sponsored by: LinuxFund

As warned: Initiate deorbit burn for the pcaudio driver.

Initiate de-orbit burn for fpu-less operation. 386+387 is still
theoretically supportable, but you'd really be happier with FreeBSD 2.1.8
on it.

add safe driver until we can verify it as machine-independent

Eliminate potential overflows by allocating softc dynamically,
removing at the same time the need for this to be a "count" config
option.

Found by: FlexeLint

Clear up that COMPAT_43 may not do the same thing on every architecture
and clear up that COMPAT_SUNOS is similarly MI, and does something
relatively similar.

Approved by: re/rwatson

Add notes about the 'ips' driver.

Update to reflect tw removal.

Update the DRM to the latest from DRI CVS. Includes some bugfixes and removal
of the infrastructure for the gamma driver which was removed a while back.
The DRM_LINUX option is removed because the handler is now provided by the
linux compat code itself.

Convert the SMP_TSC kernel option into a loader tunable. Also enable
the TSC timecounter on single-CPU systems even when they are running
an SMP kernel.

Add SMP_TSC option, which can be used on SMP systems where the TSCs
are synchronized to reduce context switch cost.

- Move driver to newbus.
- Provide identify methods for EtherExpress and 3c507 cards; this
means these cards no longer need wired configs.
- Provide a detach method.

Nuke options HTT infavor of machdep.hlt_logical_cpus tunable/sysctl.
This keeps the logical cpu's halted in the idle loop. By default
the logical cpu's are halted at startup. It is also possible to
halt any cpu in the idle loop now using machdep.hlt_cpus.

Examples of how to use this:
machdep.hlt_cpus=1 halt cpu0
machdep.hlt_cpus=2 halt cpu1
machdep.hlt_cpus=4 halt cpu2
machdep.hlt_cpus=3 halt cpu0,cpu1

Reviewed by: jhb, peter

Put a newline in between APIC_IO and HTT to try and show that HTT is not
mandatory.

Update the DRM to latest from DRI CVS. This is approximately the version
included in XFree86 4.3, but includes some fixes. Notable changes include
Radeon 8500-9100 support, PCI Radeon/Rage 128 support, transform & lighting
support for Radeons, and vblank syncing support for r128, radeon, and mga.
The gamma driver was removed due to lack of any users.

Wrap the hyperthreading support code with the HTT kernel option.
Hyperthreading support is now off unless the HTT option is added.

MFC-after: 3 days

Implemented "nooption" and "nomakeoption" config(8) tokens.
Fixed memory leak in the "nodevice" option implementation.

Use these instead of sed(1) in MD NOTES.

Use a single makefile (sys/conf/makeLINT.mk) to generate
LINT for all architectures. (Previous versions missed
the LINT dependency on Makefile, and i386 version also
missed the dependency on ${NOTES}.)

Fixed bugs in the previous NOTES conversion using the
"nodevice" token and sed(1):

- i386 LINT lost "device pst".

- pc98 LINT lost SC_*, MAXCONS and KBD_DISABLE_KEYMAP_LOAD
options, and got needless DPT_* options.

- Added nooptions PPC_DEBUG, PPC_PROBE_CHIPSET, KBD_INSTALL_CDEV
to sparc64 LINT so that it has a chance to config(8).

This basically returns us to where we were before.

Move most everything back to a MI NOTES, and use "nodevice" in MD NOTES
Where needed. Use 'sed' for now in place of "nooptions". Add a sparc64
MD NOTES.

Reviewed by: arch@

Move MD devices to <machine>/conf/NOTES.

FB_INSTALL_CDEV not usable on Alpha.

Only i386 has npx device.

add PST to i386 notes.

Fix typo in comment: inlcude -> include.

Add machdep.elan_freq sysctl which can be used to set the CPU clock
frequency in Hz. The default is still 33.333 MHz. Please notice
that the number is round to a multiple of four internally so it may
not read back exactly the same as written.

Add compile time ELAN_XTAL option to override the 33.333 MHz default.

Add compile time ELAN_PPS option to enable code for high precision
(250 nanoseconds) timestamping of external signals.

Make 3dfx i386-only. The memrange API it uses may be defined in an MI
header, but it is only implemented on i386.

Move rc(4) over to MI notes and enable it as a MI module.

Make xrpu(4) i386-only. Consumers of i386_btop() are not MI.

Move sr(4) over to i386-only as it is yet another user of kvtop().

Move firewire back to being MI.

lnc(4) uses kvtop() and is thus i386-only for now.

Make firewire i386-only for now. It doesn't quite handle machines with
64-bit address spaces yet. Pointy hat to myself for sticking it in the MI
NOTES file to begin with.

ed(4) uses kvtop() and is thus i386-only. It has several other warnings
related to sizeof(int) != sizeof(void *), but kvtop() is much harder to
fix.

Approved by: imp

Move the drm code to the i386 MD NOTES file. It can be added to other MD
NOTES files if desired, but this code is not MI on FreeBSD. The Alpha
support is Linux specific and does not compile on FreeBSD.

Move digi to the i386 MD NOTES until it stops using inb() and outb().
Please use bus_space functions instead.

- Move comments regarding flags for dgb(4) over to the MD NOTES file where
dgb(4) lives.
- Move dgb(4) back to where it used to be relative to other drives in the
old NOTES/LINT file.

Make the ar(4) driver i386-only for now. It has lots of sizeof(int) ==
sizeof(void *) assumptions and doesn't use busdma yet (it uses kvtop()
which is not an MI interface).

Recommended by: jake, mux

- Convert to newbus, bus_space etc.
- Move to MI space.

Tested on: i386

Merge PC98 changes.

Handle hints for the atspeaker device.
Document same.

Rename 'device acpica' to 'device acpi'.

Approved by: msmith, iwasaki

device rc no longer requires a count since jhb newbussified the rc
device driver.

npx(4) doesn't honor port hints so don't provide an example one.

- No need for pmtimer hint anymore.
- npx doesn't need an 'at' hint anymore.

Fixed the quoting of the value of SC_CUT_SEPCHARS. The double quotes
needed to be quoted (to get a C string literal), not the value itself.

Fixed the value of SC_CUT_SEPCHARS. Setting this value would have had no
effect even if it were used, since the value was the same as the default.

The above bugs had no effect except to set bad examples, since test
coverage of SC_CUT_SEPCHARS is broken by enabling a negative option.

Removed (unquoted) double quotes for all options. They were all bogus
since they had no effect except to make non-strings look like strings.
Most of the non-strings were expressions. The value of INIT_PATH is
a non-string since it is stringified later (unlike SC_CUT_SEPCHARS).

Fixed parenthesization errors inside bogus quotes (parenthesize values
if they have more than one token in them but don't parenthesize single
tokens).

Updated the CPU_DISABLE_CMPXCHG notes to warn users not to also enable
SMP with it.

Requested by: Lars Eggert <larse@ISI.EDU>

Add a knob to turn on and off the CMPXCHG instruction on > i386 IA32 systems.
This is most beneficial for vmware client os installs.

Reviewed by: jmallet, iedowse, tlambert2@mindspring.com
MFC After: never, -STABLE does not currently use this instruction

newbus & bus_space the mcd(4) driver.

Alas, poor matcd, I knew ye well.

It doesn't work.
It cannot be made to work.
Goodbye.

X-MFC after: ASAP

Move the aac driver from MI to MD NOTES. It is a long way from being
64-bit clean.

move wl (isa wavelan card, not "wi") to i386-only

move "profile 2" to i386

move ncv, nsp, stg to i386-only section (there is no pc98-specific version)

Move dgb to the i386 section

Fix LINT build on alpha by completing move of cy and apm_saver to
i386/conf/NOTES rather than the global conf/NOTES.

Suggested by: bde

Use "options " rather than "options<tab>".

Fix style(9) bugs.

Brucified by: bde

Note that 'device gzip' *requires* COMPAT_AOUT. Maybe this "device"
should be renamed to COMPAT_GZIPAOUT or something like that.

Automatically enable CPU_ENABLE_SSE (detect and enable SSE instructions)
if compiling with I686_CPU as a target. CPU_DISABLE_SSE will prevent
this from happening and will guarantee the code is not compiled in.

I am still not happy with this, but gcc is now generating code that uses
these instructions if you set CPUTYPE to p3/p4 or athlon-4/mp/xp or higher.

Add options COMPAT_AOUT to detect future bitrot.

Change the support for AMDs ElanSC520 CPU from being a device driver to
be
options CPU_ELAN
(NB: Soekris.com users!)

It is cleaner this way. We still recognize the cpu on the host-pci bridge.

Continue de-counting i4b. Devices i4bctl, i4bcapi, iavc, i4bq921,
i4bq931, i4b, isic, iwic, ifpi, ifpi2, ifpnp, ihfc, and itjc are
no longer count devices. Also remove a few other instances of N<DEVICE>
being used to control compilation of whole files.

Reviewed by: hm

Add the minimalist elan-mmcr device driver.

This driver allows a userland program to mmap the MMCR of the AMD
Elan sc520 CPU.

Catch up to rev 1.339 of src/sys/conf/options (PCI_ENABLE_IO_MODES is
now a sysctl and is enabled by default).

de-count pci

Add unit counts for the i4b stuff where it still uses NFOO etc.

Add explicit unit count on 'device pci' for ahc/ahd

The following devices do not take a static unit 'count' argument:
ar, fe, lnc, sr, wl, fpa, bktr, sbni

Add a new VM options section. Move KSTACK_PAGES there from the MI NOTES
file and better document it. Add better documentation for the DISABLE_PSE
option. Add the missing DISABLE_PG_G option and document it.

The EISA_SLOTS option appears to be i386-only.

COMPAT_OLDISA is only used on i386.

Move ACPI device and options from MI NOTES to the i386 MD NOTES file.

Move COMPAT_FREEBSD4 to arch-neutral sys/conf/NOTES.
Add COMPAT_FREEBSD4 to GENERIC for arches that existed in FreeBSD 4's time,
not just i386. (alpha and pc98)

Requested by: bde

Introduce syscall.master option 'COMPAT4' which allows one to wrap
syscalls for FreeBSD 4 compatibility.
Add kernel option COMPAT_FREEBSD4 to enable these syscalls.

s/sysctl -w/sysctl/

Revert rev 1.1018. rp(4) and dgb(4) are deemed MI, while the rest of the
drivers for simular hardware are i386-specific. That is why I did not
find the information here.

Add some NOTES on the Comtrol Rocketport and the Digiboard drivers.

Round 2 of munging the MI/MD split in NOTES. Put almost all the device
drivers with MI portions into the MI notes. Device drivers such as busses
like the isa, eisa, and pci devices are now in the MD NOTES section even
though they have some MI code. This will ensure that only the proper bits
of device drivers will be included due to the optional bits dependent on
the busses in sys/conf/files. This commit also takes the stance that since
hints are ignored in NOTES anyways, it is ok to include hints for a bus
that may not be present.

Advice from: bde

First round at trying to split up NOTES into MI and MD portions.
Unfortunately, this level doesn't really provide enough granularity. We
probably need several MI NOTES type files for things that are shared by
several architectures but not by all. For example, the PCI options could
live in a NOTES.pci.

This also updates the Makefile for i386 to generate LINT. The only changes
in the generated LINT are the order of various options.

Suggestions for improvement welcome.

Dike out a highly insecure UCONSOLE option.
TIOCCONS must be able to VOP_ACCESS() /dev/console to succeed.

Obtained from: OpenBSD

Remove references to KTR_EXTEND.

Pointy-hat to: jake

A couple of bits survived Dans nukage of CV_DEBUG in favour of INVARIANTS,
take them out with tacticals.

Uncomment GEOM in LINT

Forgot viapm in the NOTES. Fixed.

Major rework of the iicbus/smbus framework:

- VIA chipset SMBus controllers added
- alpm driver updated
- Support for dynamic modules added
- bktr FreeBSD smbus updated but not tested
- cleanup

Add a USB comm driver.

Ported from NetBSD by: akiyama

Spelling: s/guesst/guessed/

Add commented out GEOM line to NOTES

Enable DEVICE_POLLING in LINT now that it is safe to compile it there.

Note that several of the recently documented clock-related kernel options
are for debugging purposes only.

Suggested by: bde

Apply a bit more of the patch from conf/35674: document the various
clock options in more detail.

PR: conf/35674
Submitted by: Hiten Pandya <hiten@uk.FreeBSD.org>

Apply part of the patch from conf/35674 to move the PFIL_HOOKS option
to somewhere more useful, and improve documentation of it.

PR: conf/35674
Submitted by: Hiten Pandya <hiten@uk.FreeBSD.org>

Synchronize NOTES with -STABLE LINT with respects to the placement
and commenting of NETSMB, NETWMBCRYPTO, and SMBFS. In NOTES, they
had all floated to the bottom of the file with the list of seemingly
random and unclassified kernel options. This change moves them back
up to the network protocol and file system areas, and also documents
the dependencies.

Support for USB fm radio.

Submitted by: David Yeske <dyeske@yahoo.com>

Correct path to pucdata.c

Reviewed by: jhay

Add the puc (PCI "Universal" Communications) driver. The idea and some of
the structure definitions come from NetBSD to make it easier to share card
definitions. The driver only acts as a shim between the pci bus and the
sio driver. Later pci parallel ports could also be supported through this
driver. Support for most single and multiport pci serial cards should be
as simple as adding its definition to pucdata.c

Tested with the following pci cards:
Moxa Industio CP-114, 4 port RS-232,RS-422/485
Syba Tech Ltd. PCI-4S2P-550-ECP, 4 port RS-232 + 2 parallel ports
Netmos NM9835 PCI-2S-550, 2 port RS-232

Garbage-collect options ACPI_NO_ENABLE_ON_BOOT, AML_DEBUG, BLEED,
DEVICE_SYSCTLS, KEY, LOUTB, NFS_MUIDHASHSIZ, NFS_UIDHASHSIZ, PCI_QUIET
and SIMPLELOCK_DEBUG.

Garbage collect options AVM_A1_PCI, AVM_A1_PCMCIA, DEBUG_LINUX, DEV_APM,
GUS_DMA, GUS_DMA2, GUS_IRQ, OLTR_NO_BULLSEYE_MAC, OLTR_NO_HAWKEYE_MAC,
OLTR_NO_TMS_MAC and PCIC_RESUME_RESET.

Added undocumented options AAC_DEBUG, ACD_DEBUG, ACPI_MAX_THREADS,
ACPI_NO_SEMAPHORES, ASR_MEASURE_PERFORMANCE, AST_DEBUG, ATAPI_DEBUG,
ATA_DEBUG, BKTR_ALLOC_PAGES, BROOKTREE_ALLOC_PAGES, CAPABILITIES,
COMPAT_SUNOS, CV_DEBUG, MAXFILES, METEOR_TEST_VIDEO, NDEVFSINO,
NDEVFSOVERFLOW, NETGRAPH_BRIDGE, NETSMB, NETSMBCRYPTO, PFIL_HOOKS,
SIMOS, SMBFS, VESA_DEBUG, VGA_DEBUG.

Start using #! to comment out negative options and ## to comment out
broken options.

atapi-all.c:
Fixed rotted bits that were hiding under ATAPI_DEBUG.

atapi-cd.c:
#include "opt_ata.h" so that ACD_DEBUG is actually visible.

ata/atapi-tape.c
#include "opt_ata.h" so that AST_DEBUG is actually visible.

- Added support for receive in multiple
descriptors. This simplifies code for jumbo frames.
- Cleaned up coding conventions to make code more unix-like.
- Cleaned up code in if_em_fxhw.c and if_em_phy.c.
Added relevant comments.

MFC after: 1 week

Add an option CPU_ATHLON_SSE_HACK which attempts to enable the SSE
feature bit on newer Athlon CPUs if the BIOS has forgotten to enable
it.

This patch was constructed using some info made available by John
Clemens at http://www.deater.net/john/PavilionN5430.html

Reviewed by: -audit
MFC after: 3 weeks

Add support for the Netgear GA302T 10/100/1000 adapter. Given that
it's a 32-bit card, it's quite nice for $75.

MFC after: 3 days

Add the 'iir' driver, for the Intel Integrated RAID controllers and
prior ICP Vortex models. This driver was developed by Achim Leubner
of Intel (previously with ICP Vortex) and Boji Kannanthanam of Intel.

Submitted by: "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com>
MFC after: 2 weeks

- generic Arcnet framework
- device driver for SMC COM90cx6 Arcnet network adapters

Obtained from: NetBSD

Add the nullmodem device

Add the ifpi2 driver.

MFC after: 4 weeks

Add support for the Intel 82443MX chipset

PR: kern/33032
MFC after: 1 month

Comment out DEVICE_POLLING so that LINT compiles again.

Add description of DEVICE_POLLING option.

Clarify the comments related to DUMMYNET and HZ

MFC after: 3 days

o Clarify the comments on AIO to note that yes, AIO really is unsuitable
for use on machines with untrusted local users, for security as well
as stability reasons.
o Lack of clarity pointed out by: David Rufino <dr@soniq.net> via bugtraq.

Add maxusers auto-sizing description to NOTES file for -current

PROCFS requires PSEUDOFS now.

Add the 'ciss' driver, which supports the Compaq SmartRAID 5* family of
RAID controllers (5300, 532, 5i, etc.)

Thanks to Compaq and Yahoo! for support during the development of this
driver.

MFC after: 1 week

Add driver for Granch SBNI12-xx ISA and PCI network adapters.

MFC after: 1 week

Document the atkbd flags of 0x03 and be explicit to mention this might
fit some dockingstation keyboard probing.

PR: 23681
Submitted by: yokota [PR issued by:
Claude Lefrancois <lmcclef@lmc.ericsson.se>]

Axe NFS_NOSERVER since it doesn't do anything anymore. Remove NFSSERVER
from your config file instead.

The sound drivers live in sound/driver, not sound/drivers

submitted by: Alex Kapranoff <alex@kapran.bitmcnit.bryansk.su>

Fixed misformatting of options line for COMPAQ_M610 and EICON_DIVA in
rev.1.974.

Fixed previous misformatting of options line for ACCEPT_FILTER_DATA,
ACCEPT_FILTER_HTTP, ACPI_DEBUG, COMPAT_SVR4, DEBUG_SVR4, ED_NO_MIIBUS,
IFS, PCFCLOCK_MAX_RETRIES, PCFCLOCK_VERBOSE, PECOFF_DEBUG, PECOFF_SUPPORT,
PPC_PROBE_CHIPSET, RANDOM_IP_ID, REGRESSION, SC_CUT_SEPCHARS,
SC_CUT_SPACES2TABS, SES_ENABLE_PASSTHROUGH, UFS_DIRHASH, UFS_EXTATTR
and UFS_EXTATTR_AUTOSTART.

Fixed bugs in rev.1.973. Actually enable PCI_ENABLE_IO_MODES. It
defeats the point of LINT to comment out positive options.

Fixed style bugs in rev.1.973:
- disordering of PCI options list.
- missing space after "options".
- line longer than 80 characters.
- bogus quoting of "BIOS".

add options line for Compaq Microcom 610 ISDN card.

Add PCI_ENABLE_IO_MODES option, for BIOSen that neglect this.

Submitted by: Andrew R. Reiter arr@watson.org

wx is an ex-parrot. wx doesn't exist any more, so remove it.

Remove wx.

Add entry for the PRO/1000.

Add verbage for MODULES_OVERRIDE.

Back out previous revision. TCBHASHSIZE isn't an option, despite what I'd
been misled to believe by unknown parties. It probably *should* be an option,
but the runtime value is controlled by a tunable, which Ought To Be Enough.

Document TCBHASHSIZE.

Documentation nitpick. IPFIREWALL_VERBOSE logging really has nothing
to do with "dropped packets." Any packets matching rules with the
'log' directive are logged regardless of the action, drop, pass,
divert, pipe, etc.

MFC after: 1 day

Note that this driver is soon to be deprecated and removed from FreeBSD.

Mention that ed requires miibus.

Suggested by: Eugene Grosbein <eugen@grosbein.pp.ru>

Add nmdm driver.

PR: 31027
Submitted by: Edwin Groothuis <edwin@mavetju.org>
MFC after: 1 day

Comment out RESTARTABLE_PANICS so that it is not defined in LINT. It
introduces many useless warnings obscuring the useful ones.

Add an option ED_NO_MIIBUS, which causes the `ed' driver to be
built without support for miibus PHYs. Most ed cards don't need
miibus support, so it's useful to be able to avoid the bloat of
all the mii devices for small fixed-purpose kernels.

Add device driver support for the Broadcom BCM570x family of gigabit
ethernet controllers. This adds support for the 3Com 3c996-T, the
SysKonnect SK-9D21 and SK-9D41, and the built-in gigE NICs on
Dell PowerEdge 2550 servers. The latter configuration hauls ass:
preliminary measurements show TCP speeds of over 900Mbps using
only normal size frames.

TCP/IP checksum offload, jumbo frames and VLAN tag insertion/stripping
are supported, as well as interrupt moderation.

Still need to fix autonegotiation support for 1000baseSX NICs, but
beyond that, driver is pretty solid.

Add the new ng_gif, ng_gif_demux, and ng_ip_input nodes to NOTES so they
get compiled with LINT.

Update a comment to reflect the param.c -> subr_param.c move.

PR: kern/30766
Submitted by: Kevin Way <kevin.way@overtone.org>

The number of ccd(4) devices is no longer set at compile time so stop
trying to do it in the examples and config files.

The faith(4) device is no longer a count device so don't specify a count.

Introduce new syscons(4) kernel options:
- SC_CUT_SPACES2TABS - when copying text into the cut buffer convert leading
spaces into the tabs;
- SC_CUT_SEPCHARS="XYZ" - treat supplied characters as possible words
separators when the driver searches for words boundaries when doing cut
operation.

Also unify cut code a bit to decrease amount of duplicated code. This fixes
line cut mode, so that it is no longer pads line with useless spaces.

Approved by: ru

Add some comments about KVA_PAGES and a test.

Cleanup and split of nfs client and server code.
This builds on the top of several repo-copies.

Place CPU_UPGRADE_HW_CACHE in the right section.

KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after: ha ha ha ha

Don't specify the number of vlan interfaces any more, they are created
at runtime.

Always turned on 8bit access card support for the fe driver
both i386/pc98, so options FE_8BIT_SUPPORT was deleted.

Reviewed by: nyan

note 2300/2312 support

Note that compiling ACPI into the kernel is deprecated for normal use.

Optionize UPAGES for the i386. As part of this I split some of the low
level implementation stuff out of machine/globaldata.h to avoid exposing
UPAGES to lots more places. The end result is that we can double
the kernel stack size with 'options UPAGES=4' etc.

This is mainly being done for the benefit of a MFC to RELENG_4 at some
point. -current doesn't really need this so much since each interrupt
runs on its own kstack.

Add a new kernel option RESTARTABLE_PANICS. If this option is present,
then one can restart from a panic by resetting the panicstr variable to
NULL. This commit conditionalizes the previously committed functionality
on this variable. It also removes the __dead2 attribute from the panic()
function so that when one continues from a panic() the behavior will
be predictable.

Add the screen savers for test coverage.

-Finished cleanup of old 'ThinkPad' comments that are no longer useful.

Reminded by: bde

Allow ng_split to be compiled in staticly.

MFC after: 7 weeks

You were knocked senseless by the Boomerang, spun around by the Cyclone,
blown over by the Hurricane and had a house dropped on you by the Tornado.
Now it's time to have your parade rained on by... the Typhoon!

This commit adds driver support for 3Com 3cR990 10/100 ethernet
adapters based on the Typhoon I and Typhoon II chipsets. This is actually
a port of the OpenBSD driver with many hacks by me.

No Virginia, there isn't any support for the hardware crypto yet. However
there is support for TCP/IP checksum offload and VLANs.

Special thanks go to Jason Wright, Aaron Campbell and Theo de Raadt for
squeezing enough info out of 3Com to get this written, and for doing
most of the hard work.

Manual page is included. Compiled as a module and included in GENERIC.

Note that the umass device requires scbus and da

Put a knob in the kernel config files to tweak the user max stack size.

PR: kern/28925
Reviewed by: bakul@bitblocks.com and tlambert2@mindspring.com on -arch.
MFC after: 1 week

gif isn't a count device anymore so don't put a number after it.

Pointed out by: brian

`pcn' supports AMD Am79C97x cards, not Am79C79x cards.

PR: 28946
Submitted by: Ryuichiro Imura <imura@ryu16.org>

Activate SSE/SIMD. This is the extra context switching support that
we are required to do if we let user processes use the extra 128 bit
registers etc.

This is the base part of the diff I got from:
http://www.issei.org/issei/FreeBSD/sse.html
I believe this is by: Mr. SUZUKI Issei <issei@issei.org>
SMP support apparently by: Takekazu KATO <kato@chino.it.okayama-u.ac.jp>
Test code by: NAKAMURA Kazushi <kaz@kobe1995.net>, see
http://kobe1995.net/~kaz/FreeBSD/SSE.en.html

I have fixed a couple of style(9) deviations. I have some followup
commits to fix a couple of non-style things.

Another NatSemi gigE card; the Netgear GA622T

Document additional cards supported by the nge driver: LinkSys EG1032
anf EG1064, and the Surecom EP-320G-TX.

Also fix typo in nge.4 man page: Addrton -> Addtron.

Bring in dirhash, a simple hash-based lookup optimisation for large
directories. When enabled via "options UFS_DIRHASH", in-core hash
arrays are maintained for large directories. These allow all
directory operations to take place quickly instead of requiring
long linear searches. For now anyway, dirhash is not enabled by
default.

The in-core hash arrays have a memory requirement that is approximately
half the size of the size of the on-disk directory file. A number
of new sysctl variables allow control over which directories get
hashed and over the maximum amount of memory that dirhash will use:

vfs.ufs.dirhash_minsize
The minimum on-disk directory size for which hashing should be
used. The default is 2560 (2.5k).

vfs.ufs.dirhash_maxmem
The system-wide maximum total memory to be used by dirhash data
structures. The default is 2097152 (2MB).

The current amount of memory being used by dirhash is visible
through the read-only sysctl variable vfs.ufs.dirhash_maxmem.
Finally, some extra sanity checks that are enabled by default, but
which may have an impact on performance, can be disabled by setting
vfs.ufs.dirhash_docheck to 0.

Discussed on: -fs, -hackers

A slightly more complete change to timeouts:

1. Add SA_IO_TIMEOUT as an option (4 minutes default) to cover reads,
writes, wfm, test unit ready.

2. Add internal SCSIOP_TIMEOUT (e.g., for mode sense) at 1 minute. This
should not require an option, but is cleaner to parameterize.

MFC after: 1 week

Remove dgm

Spell digi right

Don't set CONSPEED to the default and deobfuscate the comment.

PR: 28296
Submitted by: bde, Giorgos Keramidas <keramida@ceid.upatras.gr>

Actually document TCPDEBUG.

Fix punctuation in comment.

Hints overhaul:
- Replace some very poorly thought out API hacks that should have been
fixed a long while ago.
- Provide some much more flexible search functions (resource_find_*())
- Use strings for storage instead of an outgrowth of the rather
inconvenient temporary ioconf table from config(). We already had a
fallback to using strings before malloc/vm was running anyway.

Add PSEUDOFS, and note that LINPROCFS depends on it.

Document the PANIC_REBOOT_WAIT_TIME option.

PR: 22228
Submitted by: Keith Jones <keith@mithy.demon.co.uk>

Fixed missing parentheses in the definition of KTR_COMPILE. KTR_COMPILE
is usually (always?) used in expressions like (KTR_COMPILE & KTR_FOO).
Defining it as KTR_INTR|KTR_PROC gave the wrong value in approximately
8497 places according to error output for compiling LINT.

Use bitmasks of the KTR_* constants instead of hexidecimal values for
the KTR_COMPILE and KTR_MASK examples.

Add ``options RANDOM_IP_ID'' which randomizes the ID field of IP packets.
This closes a minor information leak which allows a remote observer to
determine the rate at which the machine is generating packets, since the
default behaviour is to increment a counter for each packet sent.

Reviewed by: -net
Obtained from: OpenBSD

Add device driver support for the Level 1 LXT1001 NetCellerator
gigabit ethernet controller chip. This device is used on some
fiber optic gigE cards from SMC, D-Link and Addtron. Jumbograms and
TCP/IP checksum offload on receive are supported. Hardware VLAN
filtering is not, because it doesn't play well with our existing
VLAN code. Also add manual page.

There is a 4.x version of this driver available at
http://www.freebsd.org/~wpaul/Level1/4.x if anyone feels adventurous
and wants to test it. I still need to do performance testing and
tuning with this device.

(For my next trick, I will make the 3Com 3cR990 sit up and beg.)

Remove MFS options from all example kernel configs.

Clarify that the old CD-ROM drivers are only for non-ATAPI drives.

PR: 25369
Submitted by: Matt Emmerton matt@gsicomp.on.ca
MFC after: 1 week

Update reality in the strings comment

Submitted by: Juha-Matti Liukkonen (Cubical Solutions Ltd) (jml@cubical.fi)

Add a CAPI (hardware independent) driver i4bcapi(4) and hardware driver
iavc (4) to support active CAPI-based BRI and PRI cards (currently AVM
B1 and T1 cards) to isdn4bsd.

- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file
systems were repo-copied from sys/miscfs to sys/fs.

- Renamed the following file systems and their modules:
fdesc -> fdescfs, portal -> portalfs, union -> unionfs.

- Renamed corresponding kernel options:
FDESC -> FDESCFS, PORTAL -> PORTALFS, UNION -> UNIONFS.

- Install header files for the above file systems.

- Removed bogus -I${.CURDIR}/../../sys CFLAGS from userland
Makefiles.

Convert DEVFS from an "opt-in" to an "opt-out" option.

If for some reason DEVFS is undesired, the "NODEVFS" option is
needed now.

Pending any significant issues, DEVFS will be made mandatory in
-current on july 1st so that we can start reaping the full
benefits of having it.

Add support for gigabit ethernet cards based on the NatSemi DP83820
and DP83821 gigabit ethernet MAC chips and the NatSemi DP83861 10/100/1000
copper PHY. There are a whole bunch of very low cost cards available with
this chipset selling for $150USD or less. This includes the SMC9462TX,
D-Link DGE-500T, Asante GigaNIX 1000TA and 1000TPC, and a couple cards
from Addtron.

This chip supports TCP/IP checksum offload, VLAN tagging/insertion.
2048-bit multicast filter, jumbograms and has 8K TX and 32K RX FIFOs.
I have not done serious performance testing with this driver. I know
it works, and I want it under CVS control so I can keep tabs on it.
Note that there's no serious mutex stuff in here yet either: I need
to talk more with jhb to figure out the right way to do this. That
said, I don't think there will be any problems.

This driver should also work on the alpha. It's not turned on in
GENERIC.

Add in commented out entries for NEWCARD so that they are at least
documented. They cannot be turned on by default due to conflicting
symbols at link time between OLDCARD and NEWCARD.

Approved by: imp

Add a ``digi'' driver.

This driver supports PCI Xr-based and ISA Xem Digiboard cards.
dgm will go away soon if there are no problems reported. For now,
configuring dgm into your kernel warns that you should be using
digi. This driver is probably close to supporting Xi, Xe and Xeve
cards, but I wouldn't expect them to work properly (hardware
donations welcome).

The digi_* pseudo-drivers are not drivers themselves but contain
the BIOS and FEP/OS binaries for various digiboard cards and are
auto-loaded and auto-unloaded by the digi driver at initialisation
time. They *may* be configured into the kernel, but waste a lot
of space if they are. They're intended to be left as modules.

The digictl program is (mainly) used to re-initialise cards that
have external port modules attached such as the PC/Xem.

Say goodbye to TCP_COMPAT_42

Reviewed by: wollman
Requested by: wollman

o Document UFS_ACL option
o Add link to src/sys/ufs/ufs/README.extattr for UFS_EXTATTR* options

Reviewed by: rwatson
Obtained from: TrustedBSD Project

o Introduce "options REGRESSION", a kernel option which enables
interfaces and functionality intended for use during correctness and
regression testing. Features enabled by "options REGRESSION" may
in and of themselves introduce security or correctness problems if
used improperly, and so are not intended for use in production
systems, only in testing environments.

Obtained from: TrustedBSD Project

Add function prototypes and base module for kernel side iconv library.
Add simple "xlat" converter which performs 8to8 table based conversion.
Unicode converter will be added in the near future.

Reviewed by: silence on arch@
Files placement reviewed by: bde
Obtained from: smbfs

o Two changes made elsewhere relating to recent EA commits, but not
committed to NOTES:
- s/FFS_EXTATTR/UFS_EXTATTR/
- add UFS_EXTATTR_AUTOSTART

Submitted by: bde

Axe TCP_RESTRICT_RST. It was never a particularly good idea except for a few
very specific scenarios, and now that we have had net.inet.tcp.blackhole for
quite some time there is really no reason to use it any more.

(first of three commits)

Remove the now defunct ATA_ENABLE* options

Spotted by: phk

add cnw driver to notes/lint

Move the fxp driver so it is under the miibus section.

Make md(4) and mdconfig(8) take over the role of vn(4) and vnconfig(8)
entirely as previously advertised.

md(4) adopted all assets of vn(4) some time back and has proper devfs
support and cloning abilities to boot.

Add some default hints for isp.

Back out a removal that I was far to quick to apply. The root cause
has been fixed.

No longer an option. Config(8) is whining over LINT.

Update NOTES wrt hint for fxp.

Add and document the LINPROCFS option, so that we can build linprocfs
(either as a module or in the kernel) after sys/modules/* dies.

"Document" the COMPAT_LINUX and IBCS2 ABI emulation support together
rather than in silly places like "VFS Cluster debugging". People
should really be using COMPAT_LINUX instead of the linux module on
dynamic systems like -current.

Drop the 'count' from the aha device specs

Add back in INVARIANT_SUPPORT and expand the comments in NOTES about it
to include the reasoning Eivind justifiably thwapped me over the head with.

Introduce API for sequential reads/writes (build/dissect) of mbuf chains.

Reviewed by: Ian Dowse <iedowse@maths.tcd.ie>,
Bosko Milekic <bmilekic@technokratis.com>,
Julian Elischer <julian@elischer.org> and arch@/net@
Obtained from: smbfs

Activate USER_LDT by default. The new thread libraries are going to
depend on this. The linux ABI emulator tries to use it for some linux
binaries too. VM86 had a bigger cost than this and it was made default
a while ago.

Reviewed by: jhb, imp

Now that zerror() and SPLASSERT() have been laid to rest, INVARIANT_SUPPORT
is no longer needed. R.I.P.

Reflect recently added support for SMC9432FTX cards.