Commit Graph

173340 Commits

Author SHA1 Message Date
John Baldwin
d95dca1d08 Add optional entropy harvesting for software interrupts in swi_sched()
as controlled by kern.random.sys.harvest.swi.  SWI harvesting feeds into
the interrupt FIFO and each event is estimated as providing a single bit of
entropy.

Reviewed by:	markm, obrien
MFC after:	2 weeks
2012-09-25 14:55:46 +00:00
Gleb Smirnoff
486e090204 Fix panic introduced by me in r240835, when zero weight
was passed to wtab_alloc().

Reported by:	Kim Culhan <w8hdkim gmail.com>
2012-09-25 12:45:41 +00:00
Alexander Motin
aa91d1a85c Reduce delays in several wait loops from 10ms to 10us, same is it is done
in Linux. This substantially increases graphics performance on Ivy Bridge.

Submitted by:	avg@
Reviewed by:	kib@
2012-09-25 10:52:49 +00:00
Adrian Chadd
23f44d2b30 Call ath_tx_tid_unsched() after the node has been flushed, so the
state can be printed correctly.
2012-09-25 05:56:59 +00:00
Alan Cox
c4fc9c14c2 Eliminate an unused declaration. 2012-09-25 03:59:10 +00:00
Rick Macklem
c3f86a256c Attila Bogar reported a bug in mountd when multiple export
entries with different security flavors are in the exports(5)
file. For that case, mountd replies with the security flavors
of the last entry and not the correct one for the client host.
This patch fixes that by storing separate copies of the flavors
for each host/net case, plus a default one for the case where
no hosts/nets are specified on an entry in the exports(5) file.
Unlike the patch in the PR, it replies with the security flavors
for the entry instead of merging the security flavors for all
the entries and replying with that.

Tested by:	attila.bogar at linguamatics.com
PR:		kern/164933
MFC after:	2 weeks
2012-09-24 23:57:16 +00:00
Jim Harris
6aa3468375 Use CAM_SEL_TIMEOUT and CAM_DEV_NOT_THERE to report missing targets or
LUNs respectively.  This removes a huge number of error messages
from CAM during bus scans.

Copied almost verbatim from mav's commit r237460.

Submitted by:	Mike Tancsa <mike at sentex dot net>
MFC after:	3 days
2012-09-24 21:45:41 +00:00
Jim Harris
95161fc323 Specify MTX_RECURSE for the controller's io_lock. Without it, tws(4)
immediately panics on boot with INVARIANTS enabled.  The driver already
clearly expects to be able to recurse on this mutex - the main I/O
is always recursing on this lock.

Reported and tested by:  Mike Tancsa <mike at sentex dot net>
MFC after: 1 week
2012-09-24 21:40:22 +00:00
Adrian Chadd
0368251456 Migrate the ath(4) KTR logging to use an ATH_KTR() macro.
This should eventually be unified with ATH_DEBUG() so I can get both
from one macro; that may take some time.

Add some new probes for TX and TX completion.
2012-09-24 20:35:56 +00:00
Adrian Chadd
6d24c7dbab Debugging output fixes:
* use the correct frame status - although the completion descriptor is
  the _last_ in the frame/aggregate, the status is currently stored in
  the _first_ buffer.

* Print out ath_buf specific fields once, not per descriptor in an ath_buf.
2012-09-24 19:48:41 +00:00
Alexander V. Chernikov
26dd50684e Whitespace fixes
MFC after:	2 weeks
2012-09-24 17:34:30 +00:00
Alexander V. Chernikov
7e00325dff Permit table to be used as IPv6 address.
Reported by:	Serhiy Popov <sergiuspso@ukr.net>
MFC after:	2 weeks
2012-09-24 17:31:08 +00:00
Hans Petter Selasky
08f950a302 Make sure moused is exiting as quick as possible after that the
umsX character device returns a read error. Update devd.conf rules
to use "DEVFS" events which are generated after that the umsX
character device node has been created/destroyed, and then there
should be no need for moused to wait up to 10 seconds for umsX to
be ready. Opening umsX should not fail except if the kernel is low
on memory. In that case the user can replug the USB mouse or use
"usbconfig" to reset the device. In case of USB mouse devices,
moused should neither retry to open its character device,
once the first read error has happened. This is an indication
of device detach.

MFC after:	1 week
2012-09-24 17:13:33 +00:00
Hans Petter Selasky
391d3f18dc DWC OTG host mode improvements:
- Make HSIC selection dynamic.
 - Make LOW speed USB devices work through HIGH speed USB HUB.
2012-09-24 16:34:13 +00:00
Benjamin Kaduk
5ac3118a32 Minor man page cleanup -- fix grammar, markup fixes, and start each
sentence on a new line.

Approved by:	hrs (mentor)
2012-09-24 15:02:31 +00:00
Alexander Motin
9e2e2b9c3e Document ipv6 hook, present there for ages.
Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
2012-09-24 08:32:19 +00:00
Alexander Motin
076b76e871 Fix panic caused by wrong pointer dereference, left after pin sense rewrite
at r230551.

Also while there, make sense polling use reported for each node separately
instead of reporting accumulated total status.

Submitted by:	Barbara <barbara.freebsd@gmail.com> (1)
MFC after:	3 days
2012-09-24 08:23:05 +00:00
Adrian Chadd
0c54de88e6 Prepare for software retransmission of non-aggregate frames but ensure
it's disabled.

The previous commit to enable CLRDMASK setting didn't do it at all
correctly for non-aggregate sessions - so the CLRDMASK bit would be
cleared and never re-set.

* move ath_tx_update_clrdmask() to be called by functions that setup
  descriptors and queue frames to the hardware, rather than scattered
  everywhere.

* Force CLRDMASK to be set on all non-aggregate session frames being
  transmitted.

* Use ath_tx_normal_comp() now on non-aggregate sessoin frames
  that are queued via ath_tx_xmit_normal().  That way the TID hwq is
  updated and they can trigger (eventual) filter frame queue resets
  and software retransmits.

There's still a bit more work to do in this area to reverse the silly
short-sightedness on my part, however it's likely going to be better
to fix this now than just reverting the patch.

Thanks to people on the freebsd-wireless@ mailing list for promptly
pointing this out.
2012-09-24 06:42:20 +00:00
Adrian Chadd
94eefcf1dc In (eventual) preparation for supporting disabling the whole 11n/software
retry path - add some code to make it obvious (to me!) how to disable
the software tx path.
2012-09-24 06:00:51 +00:00
Kevin Lo
b7b6a643aa Revert r240850 and remove redundant NULL check before free(3).
free(3) handles NULL parameter fine.

Reviewed by:	kib, Garrett Cooper
2012-09-24 05:24:10 +00:00
Pedro F. Giffuni
c148237d44 Partial revert of r239963:
The following change caused rpc.lockd to exit after startup:
____

libtirpc: be sure to free cl_netid and cl_tp

When creating a client with clnt_tli_create, it uses strdup to copy
strings for these fields if nconf is passed in. clnt_dg_destroy frees
these strings already. Make sure clnt_vc_destroy frees them in the
same way.
____

MFC after:	3 days
Reported by:	David Wolfskill
Tested by:	David Wolfskill
2012-09-24 03:14:17 +00:00
Sean Bruno
126a39ce60 This patch fixes a nit in the em, lem, and igb driver statistics. Increment
adapter->dropped_pkts instead of if_ierrors because if_ierrors is
overwritten by hw stats collection.

Submitted by:	Andrew Boyer <aboyer@averesystems.com>
Reviewed by:	Jack F Vogel <jfv@freebsd.org>
MFC after:	2 weeks
2012-09-23 22:53:39 +00:00
Pawel Jakub Dawidek
c622f88dd2 It is possible to recursively destroy snapshots even if the snapshot
doesn't exist on a dataset we are starting from. For example if we
have the following configuration:

	tank
	tank/foo
	tank/foo@snap
	tank/bar
	tank/bar@snap

We can execute:

	# zfs destroy -t tank@snap

eventhough tank@snap doesn't exit.

Unfortunately it is not possible to do the same with recursive rename:

	# zfs rename -r tank@snap tank@pans
	cannot open 'tank@snap': dataset does not exist

...until now. This change allows to recursively rename snapshots even if
snapshot doesn't exist on the starting dataset.

Sponsored by:	rsync.net
MFC after:	2 weeks
2012-09-23 20:12:10 +00:00
Andrew Turner
c2257f93ba Clean up the bcm2835 initarm. It is now identical to the other ARMv6 copies
Tested by:	Alexander Yerenkow
2012-09-23 19:48:29 +00:00
Pawel Jakub Dawidek
bcb77be2b7 Add TRIM support.
The code builds a map of regions that were freed. On every write the
code consults the map and eventually removes ranges that were freed
before, but are now overwritten.

Freed blocks are not TRIMed immediately. There is a tunable that defines
how many txg we should wait with TRIMming freed blocks (64 by default).

There is a low priority thread that TRIMs ranges when the time comes.
During TRIM we keep in-flight ranges on a list to detect colliding
writes - we have to delay writes that collide with in-flight TRIMs in
case something will be reordered and write will reached the disk before
the TRIM. We don't have to do the same for in-flight writes, as
colliding writes just remove ranges to TRIM.

Sponsored by:	multiplay.co.uk

This work includes some important fixes and some improvements obtained
from the zfsonlinux project, including TRIMming entire vdevs on pool
create/add/attach and on pool import for spare and cache vdevs.

Obtained from:	zfsonlinux
Submitted by:	Etienne Dechamps <etienne.dechamps@ovh.net>
2012-09-23 19:40:58 +00:00
Steve Kargl
dba466c344 * ld80/s_expl.c:
. Fix the threshold for expl(x) where |x| is small.
  . Also update the previously incorrect comment to match the
    new threshold.

* ld128/s_expl.c:
  . Re-order logic in exceptional cases to match the logic used in
    other long double functions.
  . Fix the threshold for expl(x) where is |x| is small.
  . Also update the previously incorrect comment to match the
    new threshold.

Submitted by:	bde
Approved by:	das (mentor)
2012-09-23 18:32:03 +00:00
Steve Kargl
724c1ee29f Fix whitespace issue.
Approved by:	das (mentor, implicit)
2012-09-23 18:13:46 +00:00
Steve Kargl
8f647ffd7f * ld80/s_expl.c:
. Guard a comment from reformatting by indent(1).
  . Re-order variables in declarations to alphabetical order.
  . Remove a banal comment.

* ld128/s_expl.c:
  . Add a comment to point to ld80/s_expl.c for implementation details.
  . Move the #define of INTERVAL to reduce the diff with ld80/s_expl.c.
  . twom10000 does not need to be volatile, so move its declaration.
  . Re-order variables in declarations to alphabetical order.
  . Add a comment that describes the argument reduction.
  . Remove the same banal comment found in ld80/s_expl.c.

Reviewed by:	bde
Approved by:	das (mentor)
2012-09-23 18:06:27 +00:00
Devin Teske
0ad5179dee Always use RC_CONFS when set, even if NULL. Previously only used if non-NULL.
Reviewed by:	jilles, adrian (co-mentor)
Approved by:	adrian (co-mentor)
2012-09-23 17:47:01 +00:00
Alan Cox
1f11f2bff4 Address a race condition that was introduced in r238212. Unless the page
queues lock is acquired before the page lock is released, there is no
guarantee that the page will still be in that same page queue when
vm_page_requeue() is called.

Reported by:		pho
In collaboration with:	kib
MFC after:	3 days
2012-09-23 17:42:39 +00:00
Steve Kargl
c1a077829a * Update the lookup table to use 53-bit high and low values.
Also, update the comment to describe the choice of using
  a high and low decomposition of 2^(i/INTERNVAL) for
  0 <= i <= INTERVAL in preparation for an implementation of
  expm1l.

* Move the #define of INTERVAL above the comment, because the
  comment refers to INTERVAL.

Reviewed by:	bde
Approved by:	das (mentor)
2012-09-23 17:36:01 +00:00
Nathan Whitehorn
2383d92ae8 Move the prototype for savectx from cpu.h to pcb.h, as it is on other
platforms, as well as putting it in an #ifdef KERNEL block.

MFC after:	2 weeks
2012-09-23 17:33:16 +00:00
Hans Petter Selasky
3eabad2587 DWC OTG host mode improvements. Add support for the 3-strikes and you are
gone rule. Optimise use of channels so that when a channel
is not ready another channel is used. Instead of using the SOF interrupt
use the system timer to drive the host statemachine. This might
give lower throughput and higher latency, but reduces the CPU usage
significantly. The DWC OTG host mode support should not be considered
for serious USB host controller applications. Some problems are still
seen with LOW speed USB devices.
2012-09-23 12:19:19 +00:00
Hans Petter Selasky
3c12706c5e Correct driver name.
MFC after:	1 weeks
2012-09-23 09:39:04 +00:00
Yoshihiro Takahashi
47c6c015ff MFi386: revision 237445
Commit changes missed from r237435.  Properly calculate the signal
  trampoline addresses after the shared page is enabled.  Handle FreeBSD
  ABIs without shared page support too.

MFi386: revision 238792

  Introduce curpcb magic variable.
2012-09-23 09:13:57 +00:00
Yoshihiro Takahashi
a112b2d0e4 MFi386: revision 240637
loader/i386: replace ugly inb/outb re-implementations with cpufunc.h
2012-09-23 08:50:54 +00:00
Andrew Turner
610ba83a97 Fix a typo in a Broadcom initarm debug printf 2012-09-23 08:49:41 +00:00
Yoshihiro Takahashi
4794983d3e Cosmetic changes. 2012-09-23 08:46:44 +00:00
Kevin Lo
cecaa4738c Remove unused variable ma. 2012-09-23 08:44:12 +00:00
Kevin Lo
6e427123e2 Avoid NULL dereference 2012-09-23 08:38:06 +00:00
Michael Tuexen
e06f3469e0 Whitespace change.
MFC after:	3 days
2012-09-23 07:43:10 +00:00
Michael Tuexen
a98809db78 Declare a static function as such.
MFC after:	3 days
2012-09-23 07:23:18 +00:00
Andrew Turner
1f008b99cc Pull out the SoC specific parts of initarm into separate functions 2012-09-23 03:46:03 +00:00
Andrew Turner
70203625fb Update different versions of physmap_init to be identical in preparation
for merging them.
2012-09-23 02:01:59 +00:00
Andrew Turner
d98d8a1e83 Reduce the diff between the FDT implementations of initarm.
This only touches whitespace and comments.
2012-09-22 22:41:38 +00:00
Devin Teske
437f652038 jilles accurately advises that, in the context of shell redirection, the `:'
builtin is processed specially and thus the `: > file' syntax for example
will cause premature termination of the current shell on redirection-error.

The `true' builtin on the other-hand is not included in this special
processing (for compatibility reasons to satisfy legacy scripts programmed
for systems where `true' is not a builtin).

Change bare `: > file' syntax into `true > file' syntax to prevent premature
shell termination in the event of redirection-error.

NOTE: Instances of `: > file' that appear within a sub-shell have been left
unmodified as these will not cause premature termination of the main script.

Reviewed by:	jilles, adrian (co-mentor)
Approved by:	adrian (co-mentor)
2012-09-22 22:16:07 +00:00
Michael Tuexen
efb0814c24 Fix a bug related to handling Re-config chunks. It is not true that
the association can be removed if the socket is gone.

MFC after:	3 days
2012-09-22 22:04:17 +00:00
Eitan Adler
7cc324f8bd Remove some duplicated advice.
While here increase the suggested sizes for the
partition as "make universe" takes a lot more
space than mentioned.

Reviewed by:	gavin
Approved by:	gjb
MFC after:	3 days
X-MFC-With:	r240728
2012-09-22 21:34:46 +00:00
Gleb Smirnoff
51e02a31d0 EBUSY is a better reply for refusing to unload pf(4) or pfsync(4).
Submitted by:	pluknet
2012-09-22 19:03:11 +00:00
Gleb Smirnoff
e9e4cb7345 Use M_NOWAIT in wtab_alloc(), too. Convert panic() to
a soft failure here. wtab_alloc() is used by red_alloc(),
which can fail.

Reported by:	Kim Culhan <w8hdkim gmail.com>
2012-09-22 18:47:14 +00:00