means that running out of mbuf space isn't a panic anymore, and code
which runs out of network memory will sleep to wait for it.
Submitted by: Bosko Milekic <bmilekic@dsuper.net>
Reviewed by: green, wollman
madvise().
This feature prevents the update daemon from gratuitously flushing
dirty pages associated with a mapped file-backed region of memory. The
system pager will still page the memory as necessary and the VM system
will still be fully coherent with the filesystem. Modifications made
by other means to the same area of memory, for example by write(), are
unaffected. The feature works on a page-granularity basis.
MAP_NOSYNC allows one to use mmap() to share memory between processes
without incuring any significant filesystem overhead, putting it in
the same performance category as SysV Shared memory and anonymous memory.
Reviewed by: julian, alc, dg
add support for non-pnp cards to sbc
move card identification to sbc
channel-swapping code is in sb now instead of dsp
vibra16x support is still broken, but will be fixed soon
note: sbc is now compulsory for sb cards
for pnp cards use:
device sbc0
for non-pnp cards eg:
device sbc0 at isa? port 0x240 irq 5 drq 3 flags 0x15
(hints as oldpcm)
both in addition to:
device pcm0
Reviewed by: tanimura,dfr
Said he liked it: peter
second LUN to show up.
mjacob's change (which is correct) in rev 1.21 of cam_periph.c to elminiate
infinite retries of the SCSI busy status bit seems to have broken probing
of Pioneer changers that aren't already quirked.
The right way to fix this is probably to change things around so we can
guarantee 100% sequential probing of LUN-based changers even if they aren't
quirked. This should fix things for now, though.
* lockstatus() and VOP_ISLOCKED() gets a new process argument and a new
return value: LK_EXCLOTHER, when the lock is held exclusively by another
process.
* The ASSERT_VOP_(UN)LOCKED family is extended to use what this gives them
* Extend the vnode_if.src format to allow more exact specification than
locked/unlocked.
This commit should not do any semantic changes unless you are using
DEBUG_VFS_LOCKS.
Discussed with: grog, mch, peter, phk
Reviewed by: peter
The UPAGES have not been there since Jan '96, but the hole was preserved
for BSD/OS binary compatability. This has been fixed other ways (%ebx
now has a pointer to PS_STRINGS), and the stack is nowhere near where
it used to be so this hack isn't required anymore.
maps onto the upages. We used to use this extensively, particularly
for ps and gdb. Both of these have been "fixed". ps gets the p_stats
via eproc along with all the other stats, and gdb uses the regs, fpregs
etc files.
Once apon a time the UPAGES were mapped here, but that changed back
in January '96. This essentially kills my revisions 1.16 and 1.17.
The 2-page "hole" above the stack can be reclaimed now.
by the Linux emulator (and other emulators) for syscall argument
translation. The x86 port currently seems to allow unrestricted kernel
accesses to user memory.
Reviewed by: alc, gallatin
and fixing some major bugs.
- Add support for the v5 firmware interface, used by the DAC1164P
(tested) and AcceleRAID 352 (untested but should work). We now cover
all of the Mylex family's protocols except for v2 (used by EISA and
Alpha-compatible cards).
- Fix an accounting bug which resulted in endless 'poll still busy'
messages. In situations of high controller load the count of poll
commands could be incremented without actually successfully launching
a command. This totally removes the accounting for status poll
commnads; it was its own worst enemy.
- Add some simple reentry prevention locks to processing of the waiting
and completed command queues to prevent races which could result in
I/O being done or completed twice (both are fatal). This highlights
a need for simple locking primitives in both the UP and SMP kernels.
- Streamline the handling of command completion to reduce the amount of
redundant work being done. Remove the code which tests for commands
that have gone missing in action; nobody has ever seen one of these
and it wouldn't have worked properly anyhow.
- Handle disconnection of drives from the controller in the detach,
not shutdown method. This avoids problems flushing the cache in
a panic when a drive is mounted.
- Don't call bus_generic_detach when disconnecting drives; it doesn't
actually do anything useful.
- Increment the log message index regardless of whether we actually
retrieved one or not. If we run into a message that we can't fetch,
we don't want to spin endlessly complaining about the fact.
- Don't assume that interrupts will work when we're flushing the
controller. We may think they are enabled, but in eg. a panic
situation the controller may not be able to deliver an interrupt.
attaching to the device via chip*, use the newbus nomatch method to report
the device. This leaves them unattached so that a driver can be easily
loaded to grab them later.
o be more careful about clearing addresses (this isn't a kludge)
o For AF_INET interfaces, call SIOCDIFFADDR to remove last(?) bit
of cruft.
Special cases for AF_INET shouldn't be here, but I didn't see a good
generic way of doing this. If I missed something, please let me know.
This gross hack makes pccard ejection stable for ethernet cards.
Submitted by: Atushi Onoe-san
These drivers were cloned from the ed and ep drivers back in 1994
when PCMCIA cards were a very new thing and we had no other support
for such devices. They treated the PCIC (the chip which controls the
PCCARD slot) as part of their device and generally hacked their way
to success. They have significantly bit-rotted relative to their
ancestor drivers (ed & ep) and they were a dead-end on the evolution
path to proper PCCARD support in FreeBSD.
They have been terminally broken since August 18 where mdodd forgot
them and nobody seems to have missed them enough to fix them since.
I found no outstanding PRs against these drivers.
o fix return type of sio_pccard_detach
o don't free softc in deatch, since that is done by newbus
o disconnect interrupt we used to have. Add cookie to com so that we can
tear down the interrupt on unload
o Set gone earlier, but likely doesn't matter
This makes sio pccards work again. Cards that are active when ejects may
not work (but they might, softc goes away quickly).
These changes are unreviewed by bde. I'll make any style changes he wants.
o Expose ed_stop and call it early to shutdown the hardware.
o When releasing the interrupt, pass the cookie for the irq, not
a pointer to the cookie (this is the base problem).
o Release other resources used, just like the ep driver
the activate method to the setup_intr, and turn it off to
teardown_intr.
This makes the ed driver not enter its interrupt routine during the
probe. Apparently, an interrupt happens when you disable the
interrupts. There are other problems with ed still.
ralta. These keys combine shift/ctrl/alt function and the AltLock
function. When these keys pressed together with another key, they act
just like the ordinary shift/ctrl/alt keys. When these keys are
pressed and released alone, Alt lock state is toggled.
PR: kern/12475
keymap and pressed, the system panic will be forced.
This feature must be specifically enabled by a new sysctl variable:
machdep.enable_panic_key. Its default value is 0. The panic key
won't do anything unless this variable is set to non-zero.
To use the panic key, add a keyword 'panic' to a key in your
keymap file. The following example assigns the panic function
to SysReq (Alt-PrintScreen) key (keycode 84).
083 del '.' '.' '.' '.' '.' boot boot N
084 panic nop nop nop panic nop nop nop O
085 nop nop nop nop nop nop nop nop O
PR: kern/13721
possible for ro->ro_rt to be non-NULL even though the RTF_UP flag
is cleared. (Example: a routing daemon or the "route" command
deletes a cloned route in active use by a TCP connection.) In that
case, the code was clobbering a reference to the routing table
entry without decrementing the entry's reference count.
The splnet() call probably isn't needed, but I haven't been able
to prove that yet. It isn't significant from a performance standpoint
since it is executed very rarely.
Reviewed by: wollman and others in the freebsd-current mailing list
background ]
Rename sys/pci/pci_ioctl.h to sys/sys/pciio.h to make it easier for
userland programs to use this interface. Reformat the file, and add a
BSD-style copyright to it.
Add a new man page for pci(4). The PCIOCGETCONF, PCIOCREAD, and PCIOCWRITE
ioctls are documented, but the PCIOCATTACHED ioctl is not documented
because it is not implemented.
Change includes of <pci/pci_ioctl.h> to <sys/pciio.h> or remove them
altogether. In many cases, pci_ioctl.h was unused.
Reviewed by: steve
There seems to be some problem with the new rgb_vbi_prog() RISC
code not working for NTSC users.
This means that European teletext users will need to start
Alevt (or open /dev/vbi0) BEFORE starting FXTV (or opening /dev/bktr0)
if they want to capture VBI data for Teletext/Videotext or WaveTop
Reported by: Chris Csanady <cc@137.org>, Kenneth D. Merry <ken@kdm.org>,
Randy Bush <randy@psg.com>
opt_global.h and opt_svr4.h, instead of from the command line. This
brings them in-line with most of the rest of the kernel.
svr4_ioctl.c has also failed to compile with debugging for a while
now; fixed by adding systm.h and socketvar.
Some svr4 source files are automatically generated from syscalls.master;
these have been committed as consequential changes, otherwise everyone
will have to "make svr4_sysent.c".
Changes:
sys/svr4/svr4.h include opt_global.h and opt_svr4.h
sys/svr4/svr4_ioctl.c include svr4.h, sys/systm.h and sys/socketvar.h
sys/svr4/svr4_ipc.c include svr4.h
sys/svr4/svr4_resource.c include svr4.h
sys/svr4/svr4_socket.c include svr4.h
sys/svr4/svr4_ttold.c include svr4.h
sys/svr4/syscalls.master include svr4.h
sys/svr4/svr4_syscallnames.c dependent on syscalls.master
sys/svr4/svr4_sysent.c dependent on syscalls.master
sys/svr4/svr4_syscall.h dependent on syscalls.master
sys/svr4/svr4_proto.h dependent on syscalls.master
sys/modules/svr4/Makefile create opt_global.h and opt_svr4.h
Should have no effect, but does make things a little cleaner. I
thought this was the race that was causing problems, but it turned out
to be in pccardd waking up after the empty/insert events had happened
and being confused.
Minor cleanup:
o Remove isahd from pccard_devinfo
o remove extra from controller
o formatting nits
o use PCCARD_DEVINFO(d) rather than a bare device_get_ivars(d)
as the unit argument instead of 0. disable_slot() calls
devclass_get_device() correctly, however because alloc_driver() does
it wrong, disable_slot() is unable to locate the child devices
attached to the pccard bus and thus fails to call device_delete_child()
on them. The end result is that when a card is removed, its detach
routine is never called, and re-insertion always fails.
With this fix (and the previous one to if_wi.c), I can now insert,
remove and re-insert my WaveLAN/IEEE card and things behave correctly.
kldunloading the if_wi.ko module also seems to work properly now.
Ok'ed by: imp
The same goes for CD drivers and tape drivers. In systems with mixed IDE
and SCSI, devices in the same priority class will be sorted in attach
order.
Also, the 'CCD' priority is now the 'ARRAY' priority, and a number of
drivers have been modified to use that priority.
This includes the necessary changes to all drivers, except the ATA drivers.
Soren will modify those separately.
This does not include and does not require any change in the devstat
version number, since no known userland applications use the priority
enumerations.
Reviewed by: msmith, sos, phk, jlemon, mjacob, bde
per discussions on -arch. This is different than -current's pccard
code, but shouldn't have any real difference.
o More code cleanup.
Next step: convert bus_space_* mapping stuff to newbus.
- Convert to using TX descritor polling similar to the xl driver (the
ST201 is a clone of the 3c90xB chipset and offers the same transmit
polling scheme). This should reduce TX overhad a little.
- Make sure to reset PHY when switching mode, as in the starfire driver.
- Fix instances of free() that should be contigfree().
- Remove dead code.
case. The idea is to reduce how often we call mii_tick(), however currently
it may not be called often enough, which prevents autonegotiation from
being driven correctly.
This should improve the chances of successfully autonegotiating media
settings on non-MII 21143 NICs. (Still waiting for confirmation from
some testers, but the code is clearly wrong in any case.)
packet divert at kernel for IPv6/IPv4 translater daemon
This includes queue related patch submitted by jburkhol@home.com.
Submitted by: queue related patch from jburkhol@home.com
Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
xxx_query_mode() in the vga and vesa drivers.
- xxx_query_mode() returns 0 (success) and a positive error number.
- Copy mode information on success.
- Remove redundant structure copy.
The bug first found in -STABLE by jmg.
o Implement memory and I/O activation/deactivation. irq not handled.
o switch pcic_chip functions around to use more convenient types.
o kill __P and most of the old K&R prototypes just to be mean.
o minor other nits
adequate for the IDE disks that I have available for testing. Most seem
to wait between 1 and 3 seconds before flushing their caches.
Add the ability to override the delay at compile time via the
undocumented option POWEROFF_DELAY. The delay can still be set via
sysctl as it was originally implemented.
boots I try in vain to remember which month or even year this system
was last booted in.
Print out the uptime before rebooting, and give people like me
less (or more as it may be) to think about while the systems boots.
