66632 Commits

Author SHA1 Message Date
Sam Leffler
dd5ac081b8 add hints to specify how NPE ports are mapped to MAC+PHY; these
could be commented out as they just duplicate the defaults that
are built into the code

Reviewed by:	imp
MFC after:	1 week
2008-03-22 16:55:51 +00:00
Sam Leffler
c7ad0d8736 Improve mac+phy configuration so that hints can be used to describe
layouts different than the defaults:
o hint.npe.0.mac="A", "B", etc. specifies the window for MAC register accesses
o hint.npe.0.mii="A", "B", etc. specifies PHY registers
o hint.npe.1.phy=%d specifies the PHY to map to a port

This allows devices like NSLU to be setup w/o code changes and will
also be used for forthcoming support for more Avila boards.

Reviewed by:	imp
MFC after	1 week
2008-03-22 16:53:28 +00:00
Poul-Henning Kamp
4218a7310b In abort2(2): Accept a NULL arg pointer if nargs == 0 2008-03-22 16:32:52 +00:00
Sam Leffler
c28953b424 (finally) add the hal status to the diagnostic generated after
a failed ath_hal_reset call

MFC after:	3 days
2008-03-22 16:27:47 +00:00
Jeff Roberson
698b1a6643 - Complete part of the unfinished bufobj work by consistently using
BO_LOCK/UNLOCK/MTX when manipulating the bufobj.
 - Create a new lock in the bufobj to lock bufobj fields independently.
   This leaves the vnode interlock as an 'identity' lock while the bufobj
   is an io lock.  The bufobj lock is ordered before the vnode interlock
   and also before the mnt ilock.
 - Exploit this new lock order to simplify softdep_check_suspend().
 - A few sync related functions are marked with a new XXX to note that
   we may not properly interlock against a non-zero bv_cnt when
   attempting to sync all vnodes on a mountlist.  I do not believe this
   race is important.  If I'm wrong this will make these locations easier
   to find.

Reviewed by:	kib (earlier diff)
Tested by:	kris, pho (earlier diff)
2008-03-22 09:15:16 +00:00
Alfred Perlstein
435cdf88ea Fix a race where timeout/untimeout could cause crashes for Giant locked
code.

The bug:

There exists a race condition for timeout/untimeout(9) due to the
way that the softclock thread dequeues timeouts.

The softclock thread sets the c_func and c_arg of the callout to
NULL while holding the callout lock but not Giant.  It then drops
the callout lock and acquires Giant.

It is at this point where untimeout(9) on another cpu/thread could
be called.

Since c_arg and c_func are cleared, untimeout(9) does not touch the
callout and returns as if the callout is canceled.

The softclock then tries to acquire Giant and likely blocks due to
the other cpu/thread holding it.

The other cpu/thread then likely deallocates the backing store that
c_arg points to and finishes working and hence drops Giant.

Softclock resumes and acquires giant and calls the function with
the now free'd c_arg and we have corruption/crash.

The fix:

We need to track curr_callout even for timeout(9) (LOCAL_ALLOC)
callouts.  We need to free the callout after the softclock processes
it to deal with the race here.

Obtained from: Juniper Networks, iedowse
Reviewed by: jhb, iedowse
MFC After: 2 weeks.
2008-03-22 07:29:45 +00:00
Doug Ambrisko
a355f43ed2 Add in a compat. mode so you can either open the card's device
node or directly open mfi0 and specify the card you want to talk to
in the ioctl.
2008-03-22 02:57:49 +00:00
Bjoern A. Zeeb
3e43d2ae25 Add ';' missed with the SYSINIT changes.
Not noticed by tb as TCP_SIGNATURE is not in LINT.

MFC after:	1 month
2008-03-21 18:31:42 +00:00
Remko Lodder
5f185dbd84 Add the i915 GME device to DRM.
PR:		kern/121808
Submitted by:	Volker Werth <volker at vwsoft dot com>
Approved by:	imp (mentor, implicit for trivial changes)
MFC after:	3 days
2008-03-21 16:38:42 +00:00
Konstantin Belousov
e7ffdf423a Reduce contention on the vnode interlock by not acquiring the BO_LOCK
around the check for the BV_BKGRDINPROG in the brelse() and bqrelse().
See the comment for the explanation why it is safe.

Tested by:	pho
Submitted by:	jeff
2008-03-21 12:38:44 +00:00
Konstantin Belousov
0e2c6b177f Reduce the acquisition of the vnode interlock in the ffs_read() and
ffs_extread() when setting the IN_ACCESS flag by checking whether the
IN_ACCESS is already set. The possible race there is admissible.

Tested by:	pho
Submitted by:	jeff
2008-03-21 12:33:00 +00:00
Jeff Roberson
0169d126a6 - Reduce contention on the global bdonelock and bpinlock by using
a pool mutex to protect these sleep/wakeup/counter races.  This
   still is preferable to bloating each bio with a mtx.
2008-03-21 10:00:05 +00:00
Jeff Roberson
b7edba7704 - Add a new td flag TDF_NEEDSUSPCHK that is set whenever a thread needs
to enter thread_suspend_check().
 - Set TDF_ASTPENDING along with TDF_NEEDSUSPCHK so we can move the
   thread_suspend_check() to ast() rather than userret().
 - Check TDF_NEEDSUSPCHK in the sleepq_catch_signals() optimization so
   that we don't miss a suspend request.  If this is set use the
   expensive signal path.
 - Set NEEDSUSPCHK when creating a new thread in thr in case the
   creating thread is due to be suspended as well but has not yet.

Reviewed by:	davidxu (Authored original patch)
2008-03-21 08:23:25 +00:00
John Baldwin
eb2b0540e5 Explicitly use spinlock_enter/exit rather than locking the icu_lock spin
lock in the 8259A drivers as these drivers are only used on UP systems.
This slightly reduces the penalty of an SMP kernel (such as GENERIC) on
a UP x86 machine.
2008-03-20 21:53:27 +00:00
John Baldwin
dcc8106854 Implement a BUS_BIND_INTR() method in the bus interface to bind an IRQ
resource to a CPU.  The default method is to pass the request up to the
parent similar to BUS_CONFIG_INTR() so that all busses don't have to
explicitly implement bus_bind_intr.  A bus_bind_intr(9) wrapper routine
similar to bus_setup/teardown_intr() is added for device drivers to use.
Unbinding an interrupt is done by binding it to NOCPU.  The IRQ resource
must be allocated, but it can happen in any order with respect to
bus_setup_intr().  Currently it is only supported on amd64 and i386 via
nexus(4) methods that simply call the intr_bind() routine.

Tested by:	gallatin
2008-03-20 21:24:32 +00:00
Søren Schmidt
471798c310 Unbreak the last commit.
Changes from the PM WIP sneaked in and caused compile errors.
2008-03-20 21:21:31 +00:00
Kip Macy
f705d735fb pay attention to default cluster limits when sizing receive queues 2008-03-20 20:52:37 +00:00
Ed Maste
42ef13a247 Restore creation of passthrough devices with newer controller firmware by
putting the correct size in the fib header.  Presumably the older firmware
silently ignored a bad size field.

(This change tested with a 3805 controller.  Passthrough devices were
created when running firmware build 12814, but not 15323 or later.  With
this change they're created for both old and new firmware versions.)

Submitted by:	Adaptec
2008-03-20 20:33:48 +00:00
Ed Maste
f355c0e081 Add ioctls FSACTL_SEND_LARGE_FIB, FSACTL_SEND_RAW_SRB,
FSACTL_LNX_SEND_LARGE_FIB, and FSACTL_LNX_SEND_RAW_SRB, and correct size
checks on FIBs passed in from userspace.  Both changes were obtained from
Adaptec's driver build 15317.  Adaptec's commandline RAID tool arcconf uses
these ioctls when creating a RAID-10 array (and probably other operations
too).
2008-03-20 17:59:19 +00:00
Sam Leffler
ef0e4fc4f5 add usb devices and more wlan stuff now that usb is functional
MFC after:	1 month
2008-03-20 17:44:58 +00:00
Roman Divacky
6af821237d o Add stub support for some new futex operations,
so the annoying message is not printed.

	o	Don't warn about FUTEX_FD not being implemented
		and return ENOSYS instead of 0 (eg. success).

	o	Clear FUTEX_PRIVATE_FLAG as we actually implement
		only private futexes so there is no reason to
		return ENOSYS when app asks for a private futex.
		We don't reject shared futexes because they worked
		just fine with our implementation so far.

Approved by:	kib (mentor)
Tested by:	bsam
MFC after:	1 week
2008-03-20 17:03:55 +00:00
Sam Leffler
43b1161d4d Workaround design botch in usb: blindly mixing bus_dma with PIO does not
work on architectures with a write-back cache as the PIO writes end up
in the cache which the sync(BUS_DMASYNC_POSTREAD) in usb_transfer_complete
then discards; compensate in the xfer methods that do PIO by pushing the
writes out of the cache before usb_transfer_complete is called.

This fixes USB on xscale and likely other places.

Sponsored by:	hobnob
Reviewed by:	cognet, imp
MFC after:	1 month
2008-03-20 16:19:25 +00:00
Konstantin Belousov
91a35e7870 Do not dereference cdev->si_cdevsw, use the dev_refthread() to properly
obtain the reference. In particular, this fixes the panic reported in
the PR. Remove the comments stating that this needs to be done.

PR:	kern/119422
MFC after:	1 week
2008-03-20 16:08:42 +00:00
Sam Leffler
4b539f02f5 Correct cache handling for xfer requests marked URQ_REQUEST: many (if not
all uses) involve a read but usbd_start_transfer only does a PREWRITE; change
this to BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE as I'm not sure if any
users do write+read.

Reviewed by:	cognet, imp
MFC after:	1 month
2008-03-20 16:04:13 +00:00
Sam Leffler
f9f98a6a18 map device 5; the optional USB controller on Gateworks 2348 boards
shows up here instead of the minipci slot at J4

Reviewed by:	cognet, imp
MFC after:	1 week
2008-03-20 15:54:19 +00:00
Konstantin Belousov
69aa768aef Fix the leak of the vmspace on the fork when the process limits
are exceeded.

Pointy hat to:	me
MFC after:	3 days
2008-03-20 15:24:49 +00:00
Søren Schmidt
8ab1ead1c0 Fix Problem with Intel Matrix RAID.
Fix from PR/121899.
2008-03-20 11:54:26 +00:00
Kip Macy
879773c18b back out last change as Sam believes that it breaks multicast - need to revisit after following up with pyun 2008-03-20 06:19:34 +00:00
Jeff Roberson
9727e63745 - Restore runq to manipulating threads directly by putting runq links and
rqindex back in struct thread.
 - Compile kern_switch.c independently again and stop #include'ing it from
   schedulers.
 - Remove the ts_thread backpointers and convert most code to go from
   struct thread to struct td_sched.
 - Cleanup the ts_flags #define garbage that was causing us to sometimes
   do things that expanded to td->td_sched->ts_thread->td_flags in 4BSD.
 - Export the kern.sched sysctl node in sysctl.h
2008-03-20 05:51:16 +00:00
Kip Macy
83631568fe Don't re-initialize the interface if it is already running.
This one line change makes the following code found in many ethernet device drivers
(at least em, igb, ixgbe, and cxgb) gratuitous

	case SIOCSIFADDR:
		if (ifa->ifa_addr->sa_family == AF_INET) {
			/*
			 * XXX
			 * Since resetting hardware takes a very long time
			 * and results in link renegotiation we only
			 * initialize the hardware only when it is absolutely
			 * required.
			 */
			ifp->if_flags |= IFF_UP;
			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
				EM_CORE_LOCK(adapter);
				em_init_locked(adapter);
				EM_CORE_UNLOCK(adapter);
			}
			arp_ifinit(ifp, ifa);
		} else
			error = ether_ioctl(ifp, command, data);
		break;
2008-03-20 05:35:02 +00:00
Kevin Lo
77ac9b1757 - Add the Corega CG-WLUSB2GL from NetBSD
- Add the Corega CG-WLUSB2GPX
2008-03-20 05:05:37 +00:00
Alexander Nedotsukov
debf713e45 Improve VT_WAITACTIVE semantics.
- Wait for requested vty activation regardless its open state.
- Remove redundant console cleanup.

Approved by:	kib
MFC after:	1 week
2008-03-20 04:10:52 +00:00
Sam Leffler
ca4a3a4088 add some debug msgs for tracking xfers 2008-03-20 03:11:07 +00:00
Sam Leffler
9f55d2bb94 add support for %b printing of request + xfer flags 2008-03-20 03:09:59 +00:00
Jeff Roberson
52e95411f8 - Remove the unused and redundant sched_newproc() function.
- Remove the unused and redundant sched_newthread() which peaks into scheduler
   private structures.
2008-03-20 03:09:15 +00:00
Jeff Roberson
79813875ab - There is no sense in calling sched_newthread() at thread_init() and
thread_fini().  The schedulers initialize themselves properly during
   sched_fork_thread() anyhow.  fini is only called when we're returning
   the memory to the allocator which surely doesn't care what state the
   memory is in.
2008-03-20 03:07:57 +00:00
Jeff Roberson
8b16c208e6 - ULE and 4BSD share only one line of code from sched_newthread() so implement
the required pieces in sched_fork_thread().  The td_sched pointer is already
   setup by thread_init anyway.
2008-03-20 03:06:33 +00:00
Jeff Roberson
0ac213ef80 - Don't call the empty sched_newproc() function. sched_newproc() already
existed as sched_fork() which is a non empty function in both schedulers.
2008-03-20 03:05:17 +00:00
Jeff Roberson
a90f3f2547 - Move maybe_preempt() from kern_switch.c to sched_4bsd.c. This is function
is only used by 4bsd.
 - Create a new runq_choose_fuzz() function rather than polluting runq_choose()
   with 4BSD specific code.
 - Move the fuzz sysctl into sched_4bsd.c
 - Remove some dead code from kern_switch.c
2008-03-20 02:14:02 +00:00
Jeff Roberson
a564bfc7fa - Directly include opt_sched.h in sched_4bsd. 2008-03-20 01:32:48 +00:00
Jeff Roberson
75a66a92c9 - Add an option to compile in SCHED_STATS.
- Add some more information about SLEEPQUEUE_PROFILING to NOTES.
2008-03-20 01:30:49 +00:00
Julian Elischer
29481f8846 Replace really convoluted code that simplifies to "a ^= 0x01;" 2008-03-19 22:29:11 +00:00
Kip Macy
ef027c528c fix link management bug and conditionally allow the PHY to be kept on at all times for allowing non-conformant link state checks 2008-03-19 20:56:51 +00:00
Alan Cox
e5b006ffca Rename vm_pageq_requeue() to vm_page_requeue() on account of its recent
migration to vm/vm_page.c.
2008-03-19 20:24:35 +00:00
Doug Rabson
0d8563d31e Fix a regression from the last revision - don't edit the ns_rec list while
not holding the lock.
2008-03-19 12:33:25 +00:00
Paolo Pisati
63bea44682 Explicitate the newpacket size.
Bug pointed out by: many
Pointy hat to: me :(
2008-03-19 11:28:13 +00:00
Maxim Sobolev
073d8ba485 Revert previous change - it appears that the limit I was hitting was a
maxsockets limit, not maxfiles limit. The question remains why those
limits are handled differently (with error code for maxfiles but with
sleep for maxsokets), but those would be addressed in a separate commit
if necessary.

Requested by:   rwhatson, jeff
2008-03-19 09:58:25 +00:00
Pawel Jakub Dawidek
4682cd0b7d Remove extra uihold() call that accidentally sneak in during perforce
change @125544.
2008-03-19 07:52:07 +00:00
Jeff Roberson
6d55b3ec9c - Remove some dead code and comments related to KSE.
- Don't set tdq_lowpri on every switch, it should be precisely maintained now.
 - Add some comments to sched_thread_priority().
2008-03-19 07:36:37 +00:00
Jeff Roberson
241fbd3d13 - At the top of sleepq_catch_signals() lock the thread and check TDF_NEEDSIGCHK
before doing the very expensive cursig() and related locking.  NEEDSIGCHK
   is updated whenever our signal mask change or when a signal is delivered and
   should be sufficient to avoid the more expensive tests.  This eliminates
   another source of PROC_LOCK contention in multithreaded programs.
2008-03-19 07:35:14 +00:00