CVS log for src/sys/arch/mips/sibyte/dev/sbmac.c

Up to [cvs.NetBSD.org] / src / sys / arch / mips / sibyte / dev

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

s/firwmare/firmware/ in comments.

Eliminate use of IFF_OACTIVE.

sbmac_start(): Replace "IF_DEQUEUE() -> IF_PREPEND() on failure" with
"IF_POLL() -> IF_DEQUEUE() on success".

s/progam/program/ in comment.

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

Sync with head.

Adopt <net/if_stats.h>.

 if_flags is neither int nor short. It's unsigned short.

Sync with HEAD

 Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

 Whitespace fix (mainly tabify).

-No functional change:
  - Simplify struct ethercom's pointer near ETHER_FIRST_MULTI().
  - Simplify MII structure initialization.
  - u_int*_t -> uint*_t.
  - KNF

 This driver does ether_ioctl() on SIOC{ADD,DEL}MULTI, SIOC{G,S}IFMEDIA and
default case in the switch statement. Only the default case didn't check the
return value with ENETRESET. Integrate them to one ether_ioctl() call with
ENETRESET test. This driver might require some additional fixes for SIOCSIFMTU
and other ioctl()s.

Allocate memory for for the ethernet DMA descriptor rings aligned to a
cache line boundary, as documented in the chip documentation.

Fixes SiByte ethernet which hasn't worked since the 8kB page size switch
(and just happened to work previously because the descriptor rings were
the same size as a page and so were allocated on a page boundary).

 Centralize ETHER_ALIGN into net/if_ether.h. Note that this commit also changes
if_upgt.c's ETHER_ALIGN from 0 to 2.

 Remove very old IFF_NOTRAILERS flag.

Sync with HEAD

 Fix build break (return type of mii_writereg).

 Change MII PHY read/write API from:

	int (*mii_readreg_t)(device_t, int, int);
	void (*mii_writereg_t)(device_t, int, int, int);
to:

	int (*mii_readreg_t)(device_t, int, int, uint16_t *);
	int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

 In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

 Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

	arm/at91/at91emac.c
	arm/ep93xx/epe.c
	arm/omap/omapl1x_emac.c
	mips/ralink/ralink_eth.c
	arch/powerpc/booke/dev/pq3etsec.c(read)
	dev/cadence/if_cemac.c <- hkenken
	dev/ic/lan9118.c


Tested with the following device:

	axe+ukphy
	axe+rgephy
	axen+rgephy	(tested by Andrius V)
	wm+atphy
	wm+ukphy
	wm+igphy
	wm+ihphy
	wm+makphy
	sk+makphy
	sk+brgphy
	sk+gentbi
	msk+makphy
	sip+icsphy
	sip+ukphy
	re+rgephy
	bge+brgphy
	bnx+brgphy
	gsip+gphyter
	rtk+rlphy
	fxp+inphy	(tested by Andrius V)
	tlp+acphy
	ex+exphy
	epic+qsphy
	vge+ciphy	(tested by Andrius V)
	vr+ukphy	(tested by Andrius V)
	vte+ukphy	(tested by Andrius V)

Not tested (MAC):
	arm:at91emac
	arm:cemac
	arm:epe
	arm:geminigmac
	arm:enet
	arm:cpsw
	arm:emac(omac)
	arm:emac(sunxi)
	arm:npe
	evbppc:temac
	macppc:bm
	macppc:gm
	mips:aumac
	mips:ae
	mips:cnmac
	mips:reth
	mips:sbmac
	playstation2:smap
	powerpc:tsec
	powerpc:emac(ibm4xx)
	sgimips:mec
	sparc:be
	sf
	ne(ax88190, dl10019)
	awge
	ep
	gem
	hme
	smsh
	mtd
	sm
	age
	alc
	ale
	bce
	cas
	et
	jme
	lii
	nfe
	pcn
	ste
	stge
	tl
	xi
	aue
	mue
	smsc
	udav
	url

Not tested (PHY):
	amhphy
	bmtphy
	dmphy
	etphy
	glxtphy
	ikphy
	iophy
	lxtphy
	nsphyter
	pnaphy
	rdcphy
	sqphy
	tlphy
	tqphy
	urlphy

Sync with HEAD

Be consistent among ethernet drivers on the convention for printing ethernet
addresses.

NFC

 Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

 This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.

update from HEAD

Pull up following revision(s) (requested by mrg in ticket #231):
	distrib/sets/lists/base/md.evbmips		1.3
	doc/CHANGES					1.2303-1.2304
	etc/etc.evbmips/MAKEDEV.conf			1.8
	etc/etc.evbmips/Makefile.inc			1.22
	etc/mtree/Makefile				1.37
	etc/mtree/NetBSD.dist.evbmips			1.1
	sys/arch/evbmips/Makefile			1.9
	sys/arch/evbmips/conf/SBMIPS			upto 1.2
	sys/arch/evbmips/conf/SBMIPS.MP			upto 1.2
	sys/arch/evbmips/conf/SBMIPS64			upto 1.2
	sys/arch/evbmips/conf/SBMIPS64.MP		upto 1.2
	sys/arch/evbmips/conf/files.sbmips		upto 1.2
	sys/arch/evbmips/conf/std.sbmips		upto 1.2
	sys/arch/evbmips/include/disklabel.h		1.6
	sys/arch/evbmips/include/loadfile_machdep.h
	sys/arch/evbmips/include/param.h		1.10
	sys/arch/evbmips/include/pci_machdep.h		1.3
	sys/arch/evbmips/sbmips/TODO
	sys/arch/evbmips/sbmips/autoconf.c
	sys/arch/evbmips/sbmips/autoconf.h
	sys/arch/evbmips/sbmips/console.c
	sys/arch/evbmips/sbmips/cpu.c			upto 1.3
	sys/arch/evbmips/sbmips/cpuvar.h
	sys/arch/evbmips/sbmips/disksubr.c
	sys/arch/evbmips/sbmips/leds.h
	sys/arch/evbmips/sbmips/locore_machdep.S
	sys/arch/evbmips/sbmips/machdep.c		upto 1.2
	sys/arch/evbmips/sbmips/rtc.c			upto 1.2
	sys/arch/evbmips/sbmips/sb1250_icu.c		upto 1.2
	sys/arch/evbmips/sbmips/swarm.h
	sys/arch/evbmips/sbmips/systemsw.c		upto 1.2
	sys/arch/evbmips/sbmips/systemsw.h
	sys/arch/evbmips/sbmips/zbbus.c			upto 1.2
	sys/arch/evbmips/stand/Makefile			1.1
	sys/arch/evbmips/stand/sbmips/Makefile
	sys/arch/evbmips/stand/sbmips/Makefile.bootprogs upto 1.2
	sys/arch/evbmips/stand/sbmips/Makefile.bootprogs 1.3
	sys/arch/evbmips/stand/sbmips/Makefile.bootxx
	sys/arch/evbmips/stand/sbmips/Makefile.inc	upto 1.3
	sys/arch/evbmips/stand/sbmips/boot/Makefile
	sys/arch/evbmips/stand/sbmips/boot/filesystem.c
	sys/arch/evbmips/stand/sbmips/boot/version
	sys/arch/evbmips/stand/sbmips/bootxx_cd9660/Makefile
	sys/arch/evbmips/stand/sbmips/bootxx_ffs/Makefile
	sys/arch/evbmips/stand/sbmips/bootxx_lfs/Makefile
	sys/arch/evbmips/stand/sbmips/common/bbinfo.h
	sys/arch/evbmips/stand/sbmips/common/blkdev.c	upto 1.2
	sys/arch/evbmips/stand/sbmips/common/blkdev.h
	sys/arch/evbmips/stand/sbmips/common/boot.c	upto 1.2
	sys/arch/evbmips/stand/sbmips/common/boot.ldscript
	sys/arch/evbmips/stand/sbmips/common/booted_dev.c upto 1.2
	sys/arch/evbmips/stand/sbmips/common/bootxx.c
	sys/arch/evbmips/stand/sbmips/common/cfe.c
	sys/arch/evbmips/stand/sbmips/common/cfe_api.c
	sys/arch/evbmips/stand/sbmips/common/cfe_api.h
	sys/arch/evbmips/stand/sbmips/common/cfe_api_int.h
	sys/arch/evbmips/stand/sbmips/common/cfe_error.h
	sys/arch/evbmips/stand/sbmips/common/cfe_ioctl.h
	sys/arch/evbmips/stand/sbmips/common/checksize.sh
	sys/arch/evbmips/stand/sbmips/common/common.h
	sys/arch/evbmips/stand/sbmips/common/panic_putstr.c
	sys/arch/evbmips/stand/sbmips/common/putstr.c
	sys/arch/evbmips/stand/sbmips/common/start.S
	sys/arch/evbmips/stand/sbmips/netboot/Makefile
	sys/arch/evbmips/stand/sbmips/netboot/conf.c
	sys/arch/evbmips/stand/sbmips/netboot/dev_net.c
	sys/arch/evbmips/stand/sbmips/netboot/devopen.c
	sys/arch/evbmips/stand/sbmips/netboot/getsecs.c	upto 1.2
	sys/arch/evbmips/stand/sbmips/netboot/if_cfe.c	upto 1.2
	sys/arch/evbmips/stand/sbmips/netboot/version
	sys/arch/mips/conf/files.sibyte			1.8
	sys/arch/mips/include/pmap.h			1.70
	sys/arch/mips/sibyte/dev/sbbuswatch.c		1.4
	sys/arch/mips/sibyte/dev/sbmac.c		1.49
	sys/arch/mips/sibyte/dev/sbscn.c		1.43
	sys/arch/mips/sibyte/dev/sbsmbus.c		1.17
	sys/arch/mips/sibyte/dev/sbtimer.c		1.21
	sys/arch/mips/sibyte/dev/sbwdog.c		1.15
	sys/arch/mips/sibyte/pci/sbbrz_pci.c		1.8
	usr.sbin/installboot/installboot.8		1.94

Move sys/arch/sbmips/* into sys/arch/evbmips/*/sbmips.

Sync with HEAD

mostly converted sbmips -> evbmips.  the SBMIPS kernel builds fully
sans disksubr.c.  intr.h does not need any additional fixes now,
only disklabel.h.

also test-built some other mips kernels.

Sync with HEAD

Sync with HEAD

Apply deferred if_start to more drivers...

Sync with HEAD

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
  - Where/When if_ipackets is counted up
  - Note that some drivers still update packet statistics in their own
    way (periodical update)
- Moved bpf_mtap run in softint
  - This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net

Sync with HEAD

Sync with HEAD

make this compile

Sync with HEAD

Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.

Sync with HEAD

Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!

src is too big these days to tolerate superfluous apostrophes.  It's
"its", people!

sync with head

Fix mii_statchg to take a 'struct ifnet *' instead of device_t.  This fixes
problem with a common MDIO bus used for multiple interfaces.
Some drivers converted to CFATTACL_DECL_NEW.

cleanup <machine/*.h> includes

Sync with HEAD.

sync with head

Sync with HEAD

Merge from matt-nb5-mips64.
Add pci support.
new interrupt code.
Adapt to new world order for MIPS

Sync with HEAD

Use aprint_* and misc cleanup.

Update to CFATTACH_DECL_NEW.

sync with head.

sync with head

Sync with HEAD.

Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.

Convert to using mutex instead of spl.

sync with head

Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client.  This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached.  However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff.  ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.

Merge from matt-nb5-mips64
Merge mips-specific arch files.

Use vaddr_t instead uint32_t for storing a pc since the latter won't work in
a LP64 kernel.

mips3_ld/mips3_sd need to be passed a volatile uint64_t *

kill extra whitespaces
reviewed by tsutsui@

sync with head.

mtod(m, unsigned int) makes gcc unhappy on _LP64.  Use uintptr_t instead.

Remove many magic numbers for addresses and interrupt numbers, and use
constants defined in SiByte/Broadcom standard header files.  Switch from
using offsets for locators to actual addresses.

Tested on a swarm (my rhone is dead, but should be OK there too).

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

bcopy -> memcpy

bzero -> memset

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

To fix compilation, consistently use 'cmd' instead of 'command'
for the ioctl command code.  Thanks he@.

*** Summary ***

When a link-layer address changes (e.g., ifconfig ex0 link
02:de:ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address.  (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior.  Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability.  KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR.  In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr.  That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR.  In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR.  For example, pull ..._init() out of any switch
statement that looks like this:

        switch (...->sa_family) {
        case ...:
                ..._init();
                ...
                break;
        ...
        default:
                ..._init();
                ...
                break;
        }

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

        switch (x & (IFF_UP|IFF_RUNNING)) {
        case 0:
                ...
                break;
        case IFF_RUNNING:
                ...
                break;
        case IFF_UP:
                ...
                break;
        case IFF_UP|IFF_RUNNING:
                ...
                break;
        }

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure.  Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls.  In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source.  In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively.  Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset.  Delete unnecessary casts to void *.  Use
sockaddr_in_init() and sockaddr_in6_init().  Compare pointers with
NULL instead of "testing truth".  Replace some instances of (type
*)0 with NULL.  Change some K&R prototypes to ANSI C, and join
lines.

sync with HEAD

Sync with HEAD.

sync with head.

Start patching up the kernel so that a network driver always has
the opportunity to handle an ioctl before generic ifioctl handling
occurs.  This will ease extending the kernel and sharing of code
between drivers.

First steps:  Make the signature of ifioctl_common() match struct
ifinet->if_ioctl.  Convert SIOCSIFCAP and SIOCSIFMTU to the new
ifioctl() regime, throughout the kernel.

sync with head

Sync with HEAD

Make many ethernet drivers share the common code for MII media
handling, ether_mediastatus() and ether_mediachange().  Check for
a non-ENXIO error return from mii_mediachg().  (ENXIO indicates
that a PHY is suspended.)

This patch shrinks the source code size by 979 lines.  There was
a 5100-byte savings on the NetBSD/i386 kernel configuration, ALL.

I have made a few miscellaneous changes, too:

gem(4): use LIST_EMPTY(), LIST_FOREACH().
mtd(4): handle media ioctls, for a change!
axe(4): do not track link status in sc->axe_link any longer
nfe(4), aue(4), axe(4), udav(4), url(4): do not reset all PHYs
        on a change of media

Except for the change to mtd(4), no functional changes are intended.

XXX This patch affects more architectures than I can feasibly
XXX compile and run.  I have compiled macppc, sparc64, i386.  I
XXX have run the patches on i386 boxen with bnx(4) and sip(4).
XXX Compiling and running on evbmips (MERAKI, ADM5120) is in
XXX progress.

sync with HEAD

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree.  Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches.  The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Sync with HEAD

sync with head.

Fix LP64 bug.

Sync with head.

Sync with head.

Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

Sync with HEAD.

count outgoing packets. from Markus Mayer

Fix some caddr_t rototill fallout.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

Fixes for -Wcast-qual. Add some needed const around char *'s,
__UNVOLATILE in READ/WRITE_REG and convert the rtc functions to properaly
take a volatile timeval

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

convert descriptor add/remove pointers to integer array indices.

recognize PERIPH_REV3 DMA for BCM1250, too

bump RX and TX ring sizes to 256 entries each.  would be better to make
them larger, but then i'd need to tweak the allocation mechanism so they
were *guaranteed* to be physically contiguous.

in PERIPH_REV3 DMA code, fix calculation of pkt size (not that it matters
for <= 4k packets), and also interrupt on end of pkt only.  cuts tx intrs
by a factor of >3 for simon's fave 100Mbps ttcp test.

Fix pass3 Tx DMA - when an mbuf spans a page boundary, make sure that
 it either is sitting in contiguous physical RAM or split the mbuf
 into two Tx descriptors.  Not the prettiest patch, but works well in
 practice - gets about an 8% decrease on CPU time for a simple ttcp TCP
 Tx benchmark.  Thanks to Chris Demetriou for some debugging help.
Add some event counters.
Remove some #if 0'd debug code.

Call sbmac_start() at the end of the interrupt service function to try
to send more packets.  Fixes problems with high UDP Tx rates.
Thanks to Matt Thomas for applying clue.

Wrap some long lines.

Remove some assigned-to but otherwise unused variables.

Disable pass3 DMA for now; booting a box to multi-user with root-on-nfs
reliably wedges during the dev_mkdb command in uvn_fp2.

__KERNEL_RCSID()

Update to consistently use Broadcom GPL-compatible license on all SiByte code.

Sync with HEAD.

initial support for mac features in new chip revs

Catch up to -current

fix long-standing pasto in DMA config1 register address setting

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

remove trailing \n in panic().  approved perry.

catch up with -current.

catch up with -current on kqueue branch

file sbmac.c was added on branch nathanw_sa on 2002-10-18 02:38:48 +0000

file sbmac.c was added on branch kqueue on 2002-06-23 17:38:07 +0000

KNF; make some function static; other minor cleanups.

Remove a few unneeded include files.

Add support for the on-chip peripherals on the Broadcom SiByte SB1250 CPU
and support routines for the Broadcom CFE (Common Firmware Environment).

This code is provided by the Broadband Processor Business Unit at
Broadcom Corp with minor updates by me.