Commit Graph

93488 Commits

Author SHA1 Message Date
Yoshihiro Takahashi
0ead4cbf9f MFi386: revision 251039
Use slightly more idiomatic expression to get the address of array.
2013-06-01 12:21:59 +00:00
Marius Strobl
0ad17e4b32 Move an assertion to the right spot; only bus_dmamap_load_mbuf(9)
requires a pkthdr being present but that's not the case for either
_bus_dmamap_load_mbuf_sg() or bus_dmamap_load_mbuf_sg(9).

Reported by:	sbruno
MFC after:	1 week
2013-06-01 11:42:47 +00:00
John Baldwin
f112d4f8b7 Remove an unused macro we originally got from BSD/OS. 2013-06-01 11:31:09 +00:00
Justin T. Gibbs
7283d23698 sys/dev/xen/blkfront/blkfront.c:
Remove dead code.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2013-06-01 04:07:56 +00:00
Justin T. Gibbs
d9fab01d7b sys/dev/xen/blkfront/blkfront.c:
Remove local, and incorrect, definition for the value of an invalid
	grant reference.

	Extract ring cleanup code into xbd_free_ring() function for
	symetry with xbd_alloc_ring().  This process also eliminated
	an initialized but unused variable.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2013-06-01 04:02:51 +00:00
Navdeep Parhar
9e4ffff197 cxgbe(4): Some more debug sysctls. These work on both T4 and T5 based
cards.

dev.t5nex.0.misc.cim_ma_la: CIM MA logic analyzer
dev.t5nex.0.misc.cim_pif_la: CIM PIF logic analyzer
dev.t5nex.0.misc.mps_tcam: MPS TCAM entries
dev.t5nex.0.misc.tp_la: TP logic analyzer
dev.t5nex.0.misc.ulprx_la: ULPRX logic analyzer

Obtained from:	Chelsio
MFC after:	1 week
2013-06-01 02:07:37 +00:00
Justin T. Gibbs
cdf5d66f2f Style changes. No intended functional changes.
o rename flush_requests => xbd_flush_requests
 o rename xbd_setup_ring => xbd_alloc_ring

Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2013-05-31 22:33:28 +00:00
Justin T. Gibbs
fac3fd8015 Style cleanups. No intended functional changes.
o Group functions by by their functionality.
 o Remove superfluous declarations.
 o Remove more unused (#ifdef'd out) code.

Sponsored by:	Spectra Logic Corporation
2013-05-31 22:21:37 +00:00
David E. O'Brien
1f4e9654bd Add a "kern.features" MIB for 32bit support under a 64bit kernel. 2013-05-31 21:43:17 +00:00
Justin T. Gibbs
33eebb6a75 Style cleanups. No intended functional changes.
o This driver is the "xbd" driver, not the "blkfront", "blkif", "xbf", or
   "xb" driver.  Use the "xbd_" naming conventions for all functions,
   structures, and constants.
 o The prevailing convention for structure fields in this driver is to
   prefix them with an abreviation of the structure type.  Update
   "recently added" fields to match this style.
 o Remove unused data structures.
 o Remove superfluous casts.
 o Make a pass over the whole driver and bring it closer to
   style(9) conformance.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2013-05-31 21:05:07 +00:00
Xin LI
cb5a918317 Explicitly use a pair of parentheses to ensure correct evaluation
ordering for bitwise operation.

Submitted by:	swildner (DragonFly)
MFC after:	2 weeks
2013-05-31 17:27:44 +00:00
John Baldwin
3d4c503cf0 Style fixes to vn_ioctl().
Suggested by:	bde
2013-05-31 16:15:22 +00:00
Alan Cox
ef5ba5a31d Simplify the definition of vm_page_lock_assert(). There is no compelling
reason to inline the implementation of vm_page_lock_assert() in the
!KLD_MODULES case.  Use the same implementation for both KLD_MODULES and
!KLD_MODULES.

Reviewed by:	kib
2013-05-31 16:00:42 +00:00
Justin T. Gibbs
e3242f9d08 Make netif_free() safe to call on a partially initialized softc.
Sponsored by:	Spectra Logic Corporation
MFC after:	1 week
2013-05-31 04:45:59 +00:00
Justin T. Gibbs
5e58295a1f Apply the ad* => ada* IDE device name transition to the Xen block
front driver.

Submitted by:	Bei Guan <gbtju85@gmail.com>
Reviewed by:	gibbs
MFC after:	1 week
2013-05-31 04:43:19 +00:00
Sean Bruno
f746997530 xpt_create_path() requires mfi_io_lock to be held, so do it.
mfi(4) doesn't panic on host startup now.

MFC this if svn 249468-242726 is shoveled back to stable/9

Obtained from:	Yahoo! Inc.
2013-05-31 03:14:49 +00:00
Jeff Roberson
22a722605d - Convert the bufobj lock to rwlock.
- Use a shared bufobj lock in getblk() and inmem().
 - Convert softdep's lk to rwlock to match the bufobj lock.
 - Move INFREECNT to b_flags and protect it with the buf lock.
 - Remove unnecessary locking around bremfree() and BKGRDINPROG.

Sponsored by:	EMC / Isilon Storage Division
Discussed with:	mckusick, kib, mdf
2013-05-31 00:43:41 +00:00
Mark Johnston
3dd2790a9f Add macros which allow one to define SDT probes with six or seven arguments;
they are needed when porting some of the Solaris providers (ip, iscsi, and
tcp in particular).

dtrace_probe() only takes five arguments from the probe site, so we need to
add the appropriate cast to allow for more than five arguments. The extra
arguments are later copied out of dtrace_probe()'s stack frame by
dtrace_getarg() (or the provider-specific getarg method) as needed.

MFC after:	1 week
2013-05-30 21:57:40 +00:00
Marius Strobl
939ce643ea - Checking for spurious interrupts is only necessary when using INTx.
Actually, this may be further optimized for controller variants
  supporting one-shot MSIs but I'm lacking the necessary hardware for
  testing.
- Add some missing synchronization of the statistics and status DMA
  maps.

MFC after:	1 week
2013-05-30 20:54:17 +00:00
Konstantin Belousov
7560005c41 After the object lock was dropped, the object' reference count could
change.  Retest the ref_count and return from the function to not
execute the further code which assumes that ref_count == 1 if it is
not.  Also, do not leak vnode lock if other thread cleared OBJ_TMPFS
flag meantime.

Reported by:	bdrewery
Tested by:	bdrewery, pho
Sponsored by:	The FreeBSD Foundation
2013-05-30 20:00:19 +00:00
Konstantin Belousov
782d4a636b Remove the capitalization in the assertion message. Print the address
of the object to get useful information from optimizated kernels dump.
2013-05-30 19:53:31 +00:00
Konstantin Belousov
67b4ed4b88 Assert that OBJ_TMPFS flag on the vm object for the tmpfs node is
cleared when the tmpfs node is going away.

Tested by:	bdrewery, pho
2013-05-30 19:51:33 +00:00
Marius Strobl
5f8c010fd9 - Do supply arguments as pointers to bce_get_{pg,rx}_buf() that are not
altered or actually needed there any longer.
- Honor errors passed to the DMA mapping callbacks.
- In bce_get_rx_buf(), do not reserve stack space for more DMA segments
  than actually necessary.
- In bce_get_pg_buf(), take advantage of bus_dmamap_load_mbuf_sg(9).
- In bce_rx_intr(), remove a pointless check for an empty mbuf pointer
  which can only happen in case of a severe programming error. Moreover,
  recovering from that situation would require way more actions with header
  splitting enabled (which it is by default).
- Fix VLAN tagging in the RX path; do not attach the VLAN tag twice if the
  firmware has been told to keep it. [1]

Obtained from:	OpenBSD [1]
MFC after:	1 week
2013-05-30 17:24:36 +00:00
Marius Strobl
4c39437f5f - As a follow-up to r247565, make firmware images that do not require
patching at runtime actually const.
- Remove pointless softc members by employing the corresponding constants
  directly.
- Remove pointless returns.
- Remove unnecessary inclusion of opt_device_polling.h.
- Replace an outdated and now bogus comment in bce_tick() with the
  appropriate one.

MFC after:	1 week
2013-05-30 16:09:56 +00:00
Luigi Rizzo
f18be5766f Bring in a number of new features, mostly implemented by Michio Honda:
- the VALE switch now support up to 254 destinations per switch,
  unicast or broadcast (multicast goes to all ports).

- we can attach hw interfaces and the host stack to a VALE switch,
  which means we will be able to use it more or less as a native bridge
  (minor tweaks still necessary).
  A 'vale-ctl' program is supplied in tools/tools/netmap
  to attach/detach ports the switch, and list current configuration.

- the lookup function in the VALE switch can be reassigned to
  something else, similar to the pf hooks. This will enable
  attaching the firewall, or other processing functions (e.g. in-kernel
  openvswitch) directly on the netmap port.

The internal API used by device drivers does not change.

Userspace applications should be recompiled because we
bump NETMAP_API as we now use some fields in the struct nmreq
that were previously ignored -- otherwise, data structures
are the same.

Manpages will be committed separately.
2013-05-30 14:07:14 +00:00
Luigi Rizzo
27892e02fb clarify usage of NETMAP_BUF 2013-05-30 13:41:19 +00:00
Marius Strobl
2dc26832f7 - Merge from r249476: Ensure that PCI bus BUS_GET_DMA_TAG() method sees
the actual PCI device which makes the request for DMA tag, instead of
  some descendant of the PCI device, by creating a pass-through trampoline.
- Sprinkle const on tables.
- Use NULL instead of 0 for pointers.
- Take advantage of nitems().

MFC after:	1 week
2013-05-30 12:16:55 +00:00
Brooks Davis
5faf6ff4cc MFP4 @217311
Intel and Sharp flash power on with their blocks in a "locked" state.
Unlocked them before attempting to perform an erase or write action and
relock when the action is complete.
2013-05-30 01:22:50 +00:00
Brooks Davis
444e780150 MFP4 @222836
Add support for partitioning CFI disks from FDT using geom_flashmap.

Sponsored by:	DARPA, AFRL
2013-05-30 01:19:02 +00:00
Marius Strobl
8fce673c58 Allow unmapped I/O via aacd(4). It shouldn't be too hard to add the
same support for aacp(4), I'm lacking the necessary hardware for
testing, though.
2013-05-30 00:22:07 +00:00
Marius Strobl
5ba8a38ee4 - Remove pointless returns.
- Make cm_data a void pointer and cm_flags unsigned as appropriate.

MFC after:	3 days
2013-05-30 00:11:22 +00:00
Marius Strobl
db6d3d9a8c Fix a typo in r249213; the second bus_if.h should have been isa_if.h. 2013-05-29 23:56:49 +00:00
Eitan Adler
8753048d82 Add support for tethering on the iPhone 4S
PR:	usb/179078
Submitted by:	Christopher Sean Hilton <chris@vindaloo.com>
MFC After:	1 week
2013-05-29 20:36:51 +00:00
Marcel Moolenaar
cd9046df11 Don't assign the copyright to the FreeBSD foundation for the years
this file is in FreeBSD. There's formality to this that hasn't
happened and Juniper is perfectly fine with being the holder.

Discussed with: eadler, imp, jhb
2013-05-29 16:51:03 +00:00
Adrian Chadd
32da86a0f1 Turn the reassociate debug print into a DPRINTF. 2013-05-29 05:10:11 +00:00
Adrian Chadd
6ba04f0d20 Fix a false -> AH_FALSE.
Now, why this hasn't tripped _any_ tinderbox builds yet, I dunno.
It's been like this for a while.
2013-05-29 04:21:42 +00:00
Adrian Chadd
5da3fc1048 Shuffle around the cleanup unpause calls a bit. 2013-05-29 01:40:13 +00:00
Rick Macklem
4562199350 Add a patch analygous to r248567, r248581, r251079 to the
old NFS client to avoid the panic reported in the PR by
doing the vnode_pager_setsize() call after unlocking the mutex.

PR:		177335
MFC after:	2 weeks
2013-05-29 00:32:49 +00:00
Rick Macklem
734b03c38d Post-r248567, there were times when the client would return a
truncated directory for some NFS servers. This turned out to
be because the size of a directory reported by an NFS server
can be smaller that the ufs-like directory created from the
RPC XDR in the client. This patch fixes the problem by changing
r248567 so that vnode_pager_setsize() is only done for regular files.

Reported and tested by:	hartmut.brandt@dlr.de
Reviewed by:	kib
MFC after:	1 week
2013-05-28 22:36:01 +00:00
Attilio Rao
c25673ffd6 o Change the locking scheme for swp_bcount.
It can now be accessed with a write lock on the object containing it OR
  with a read lock on the object containing it along with the swhash_mtx.
o Remove some duplicate assertions for swap_pager_freespace() and
  swap_pager_unswapped() but keep the object locking references for
  documentation.

Sponsored by:	EMC / Isilon storage division
Reviewed by:	alc
2013-05-28 22:07:23 +00:00
David C Somayajulu
c7d4c9d9af Avoid reading back certain registers following a write. This is an optimization.
Submitted by: David C Somayajulu
Approved by: George Neville Neil
2013-05-28 22:00:37 +00:00
Hans Petter Selasky
8c93cb8131 Revert r251023 until a more proper solution is found
for ATI based USB controllers.

MFC after:	1 week
2013-05-28 18:51:30 +00:00
Steven Hartland
32fe0ef7ac Added missing SCSI quirks from r241784
Re-ordered SSD quirks alphabetically so they are easier to maintain.

Removed my email and PR reference from comments on each quirk.

Added quirks for more SSDs:
* Crucial M4
* Corsair Force GT
* Intel 520 Series
* Kingston E100 Series
* Samsung 830 Series

Reviewed by:	pjd (mentor)
Approved by:	pjd (mentor)
MFC after:	1 week
2013-05-28 14:44:37 +00:00
Michael Tuexen
fb4a67d207 Remove redundant checks.
MFC after: 2 weeks
2013-05-28 09:25:58 +00:00
Konstantin Belousov
55a1911ef2 The getcontext() from the __fillcontextx() call in the
check_deferred_signal() returns twice, since handle_signal() emulates
the return from the normal signal handler by sigreturn(2)ing the
passed context.  Second return is performed on the destroyed stack
frame, because __fillcontextx() has already returned.  This causes
undefined and bad behaviour, usually the victim thread gets SIGSEGV.

Avoid nested frame and the need to return from it by doing direct call
to getcontext() in the check_deferred_signal() and using a new private
libc helper __fillcontextx2() to complement the context with the
extended CPU state if the deferred signal is still present.

The __fillcontextx() is now unused, but is kept to allow older
libthr.so to be used with the new libc.

Mark __fillcontextx() as returning twice [1].

Reported by:	pgj
Pointy hat to:	kib
Discussed with:	dim
Tested by:	pgj, dim
Suggested by:	jilles [1]
MFC after:	1 week
2013-05-28 04:54:16 +00:00
Konstantin Belousov
cb5bfd1240 Use slightly more idiomatic expression to get the address of array.
Tested by:	dim, pgj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:39:39 +00:00
Konstantin Belousov
87b94d9a92 The _MC_HASFPXSTATE and _MC_IA32_HASFPXSTATE flags have the same bit
value on purpose, but the ia32 context handling code is logically more
correct to use the _MC_IA32_HASFPXSTATE name for the flag.

Tested by:	dim, pgj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:36:46 +00:00
Konstantin Belousov
e9249a80f6 The ia32_get_mcontext() does not need to set PCB_FULL_IRET. The
usermode context state is not changed by the get operation, and
get_mcontext() does not require full iret as well.

Tested by:	dim, pgj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:31:15 +00:00
Konstantin Belousov
80b5691a76 When reporting the fault details, also print %rsp.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:29:20 +00:00
Konstantin Belousov
6806ce6ec8 When handling an exception from the attempt from loading the faulting
context on return from the trap handler, re-enable the interrupts on
i386 and amd64.  The trap return path have to disable interrupts since
the sequence of loading the machine state is not atomic.  The trap()
function which transfers the control to the special handler would
enable the interrupt, but an iret loads the previous eflags with PSL_I
clear.  Then, the special handler calls trap() on its own, which now
sees the original eflags with PSL_I set and does not enable
interrupts.

The end result is that signal delivery and process exiting code could
be executed with interrupts disabled, which is generally wrong and
triggers several assertions.

For amd64, the interrupts are enabled conditionally based on PSL_I in
the eflags of the outer frame, as it is already done for
doreti_iret_fault.  For i386, the interrupts are enabled
unconditionally, the ast loop could have opened a window with
interrupts enabled just before the iret anyway.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:26:08 +00:00
Hans Petter Selasky
6e7bc5b60d Workaround for for a problem seen with ATI Technologies EHCI
controller hardware most likely present on UHCI chipsets aswell. The
bug manifests itself when issuing isochronous transfers and bulk
transfers towards the same device simultaneously. From time to time it
happens that either the completion IRQ was missing or that the
completion IRQ was happening before the ITD/SITD was completely
written back to memory. The workaround assumes that double buffered
isochronous transfers are used, and that a second interrupt is
generated at the beginning of the next isochronous transfer to
complete the previous one. Possibly skipping the interrupt at the last
isochronous frame is possible, but will then break single buffered
isochronous transfers. For now we can live with some extra interrupts.

MFC after:	1 week
2013-05-27 06:32:07 +00:00
Grzegorz Bernacki
0242992132 Fix ONFI chip detection.
Submitted by:	Alexander Fedorov <alexander.fedorov@rtlservice.com>
2013-05-27 06:24:31 +00:00
Oleksandr Tymoshenko
b0dcf6c59c Add DTS for AM335x EVM with properly muxed PWM and LCD pins, and
LCD panel description
2013-05-27 00:26:29 +00:00
Oleksandr Tymoshenko
2389b66f69 Add PWM and LCDC nodes to base DTS for AM335x-based devices 2013-05-27 00:23:59 +00:00
Oleksandr Tymoshenko
24ca3d19a9 AM335x LCD controller driver with syscons support
Limitations:
- Raster mode only
- 24 and 32 bpp only
2013-05-27 00:23:01 +00:00
Oleksandr Tymoshenko
7747ea65a0 Add PWM module driver for AM335x. Only eCAS subsystem is supported
Export function to configure eCAS submodule from another drivers.
It's used to control LCD panel backlight on AM335x EVM.
2013-05-27 00:13:27 +00:00
Oleksandr Tymoshenko
2487319716 Add SCM registers definitions for AM335x platform 2013-05-27 00:09:04 +00:00
Oleksandr Tymoshenko
2e9f638dbb Add clock definitions for LCD controller and PWM module 2013-05-27 00:06:24 +00:00
Adrian Chadd
cd7dffd058 Migrate ath(4) to now use if_transmit instead of the legacy if_start
and if queue mechanism; also fix up (non-11n) TX fragment handling.

This may result in a bit of a performance drop for now but I plan on
debugging and resolving this at a later stage.

Whilst here, fix the transmit path so fragment transmission works.

The TX fragmentation handling is a bit more special.  In order to
correctly transmit TX fragments, there's a bunch of corner cases that
need to be handled:

* They must be transmitted back to back, in the same order..
* .. ie, you need to hold the TX lock whilst transmitting this
  set of fragments rather than interleaving it with other MSDUs
  destined to other nodes;
* The length of the next fragment is required when transmitting, in
  order to correctly set the NAV field in the current frame to the
  length of the next frame; which requires ..
* .. that we know the transmit duration of the next frame, which ..
* .. requires us to set the rate of all fragments to the same length,
  or make the decision up-front, etc.

To facilitate this, I've added a new ath_buf field to describe the
length of the next fragment.  This avoids having to keep the mbuf
chain together.  This used to work before my 11n TX path work because
the ath_tx_start() routine would be handed a single mbuf with m_nextpkt
pointing to the next frame, and that would be maintained all the way
up to when the duration calculation was done.  This doesn't hold
true any longer - the actual queuing may occur at any point in the
future (think ath_node TID software queuing) so this information
needs to be maintained.

Right now this does work for non-11n frames but it doesn't at all
enforce the same rate control decision for all frames in the fragment.
I plan on fixing this in a followup commit.

RTS/CTS has the same issue, I'll look at fixing this in a subsequent
commit.

Finaly, 11n fragment support requires the driver to have fully
decided what the rate scenario setup is - including 20/40MHz,
short/long GI, STBC, LDPC, number of streams, etc.  Right now that
decision is (currently) made _after_ the NAV field value is updated.
I'll fix all of this in subsequent commits.

Tested:

* AR5416, STA, transmitting 11abg fragments
* AR5416, STA, 11n fragments work but the NAV field is incorrect for
  the reasons above.

TODO:

* It would be nice to be able to queue mbufs per-node and per-TID so
  we can only queue ath_buf entries when it's time to assemble frames
  to send to the hardware.

  But honestly, we should just do that level of software queue management
  in net80211 rather than ath(4), so I'm going to leave this alone for now.

* More thorough AP, mesh and adhoc testing.

* Ensure that net80211 doesn't hand us fragmented frames when A-MPDU has
  been negotiated, as we can't do software retransmission of fragments.

* .. set CLRDMASK when transmitting fragments, just to ensure.
2013-05-26 22:23:39 +00:00
Marcel Moolenaar
dceba9b506 Unbreak ia64 tinderbox: 64-bit support was made conditional upon
__amd64__, and thus limited. Eliminate 2 trivial conditionals by
casting the 64-bit integral, holding an address, via (uintptr_t)
to (void *) and replace the last remaining check for __amd64__
with a check for __LP64__ instead.
2013-05-26 22:11:13 +00:00
Hans Petter Selasky
273c749c93 Fix some statical clang analyzer warnings. 2013-05-25 17:09:58 +00:00
Ed Schouten
74b6b2bb99 Fix <uchar.h> in for C++11.
It turns out that in C++11, char16_t and char32_t are built-in types;
language keywords. Just fix this by putting traditional _*_T_DECLARED
blocks around the definitions. We'll just predefine these in
<sys/_types.h>.

This also opens up the possibility to define char16_t in other header
files, if ever needed (e.g. if we would gain a <ctype.h> for
char16_t/char32_t).
2013-05-25 16:58:12 +00:00
Adrian Chadd
8d46c25d23 Fix net80211 fragment creation.
When creating fragment frames, the header length should honour the
DATAPAD flag.

This fixes the fragments that are queued to the ath(4) driver but it
doesn't yet fix fragment transmission.  That requires further changes
to the ath(4) transmit path.  Well, strictly speaking, it requires
further changes to _all_ wifi driver transmit paths, but this is at least
a start.

Tested:

* AR5416, STA mode, w/ fragthreshold set to 256.
2013-05-25 06:28:30 +00:00
Steven Hartland
190b967447 Enforce validation on the selected delete method via sysctl.
This prevents users from selecting a delete method which may cause
corruption e.g. MPS WS16 on pre P14 firmware.

Reviewed by:	pjd (mentor)
Approved by:	pjd (mentor)
MFC after:	2 days
2013-05-24 11:27:06 +00:00
Konstantin Belousov
537cc627d7 Fix the data corruption on the swap-backed md.
Assign the rv variable a success code if the pager was not asked for
the page.  Using an error code from the previous processed page caused
zeroing of the valid page, when e.g. the previous page was not
available in the pager.

Reported by:	lstewart
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-24 09:48:42 +00:00
Achim Leubner
dce93cd06d Driver 'aacraid' added. Supports Adaptec by PMC RAID controller families Series 6, 7, 8 and upcoming products. Older Adaptec RAID controller families are supported by the 'aac' driver.
Approved by:	scottl (mentor)
2013-05-24 09:22:43 +00:00
Michael Tuexen
3f61f926ea Withdraw http://svnweb.freebsd.org/changeset/base/250809
since the real fix is in http://svnweb.freebsd.org/changeset/base/250952.
2013-05-24 09:21:18 +00:00
Mark Johnston
427bc75e19 The fasttrap provider cleans up probes asynchronously when a process with
USDT probes exits. This was previously done with a callout; however, it is
possible to sleep while holding the DTrace mutexes, so a panic will occur
on INVARIANTS kernels if the callout handler can't immediately acquire one
of these mutexes. This panic will be frequently triggered on systems where
a USDT-enabled program (perl, for instance) is often run.

This revision changes the fasttrap cleanup mechanism so that a dedicated
thread is used instead of a callout. The old behaviour is otherwise
preserved.

Reviewed by:	rpaulo
MFC after:	1 month
2013-05-24 03:29:32 +00:00
Julian Elischer
4591f0d339 Initialising the new fibnum field to a known value turns out to
be a GOOD IDEA (TM).
Apparently MOST users set this (e.g. tcp and friends) but there are a few
users that just assume that it is a sensible value but then go on to read it.
These include SCTP, pf and the FLOWTABLE option (and maybe others).
2013-05-24 02:18:37 +00:00
Lawrence Stewart
7639c9be45 Ensure alq's shutdown_pre_sync event handler is deregistered on module unload to
avoid a dangling pointer and eventual panic on system shutdown.

Reported by:	Ali <comnetboy at gmail.com>
Tested by:	Ali <comnetboy at gmail.com>
MFC after:	1 week
2013-05-24 00:49:12 +00:00
Guy Helmer
d013d9022a While waiting for the bpf hold buffer to become idle, check
the return value from mtx_sleep() and exit bpfread() on
errors such as EINTR.

Reviewed by:	jhb
2013-05-23 21:33:10 +00:00
Pawel Jakub Dawidek
92981fdf9e Use proper malloc type for ioctls white-list.
Reported by:	pho
Tested by:	pho
2013-05-23 21:07:26 +00:00
Marcel Moolenaar
459ccd1680 Change the copyright notice to a standard BSD 2-clause license and assign
ownership to the FreeBSD foundation for the years this file has been in
the FreeBSD repository.

This file was originally created by Juniper as part of upgrading to FreeBSD
4.10 (which had no MIPS support) and held functions found on other machines
It grew actual functionality over time. The functionaliy was copied from
other architectures and ported to MIPS on a as-needed basis.

Approved by:	Mark Baushke (Juniper IP)
Approved by:	Megan Sugiyama (Juniper legal)
Pointed out by:	jmallett@
Requested by:	core (jhb@)
2013-05-23 19:47:37 +00:00
Konstantin Belousov
f4913884d7 Fix typo in the definition of the TWS_DATA_CCB.
Submitted by:	Andreas Turriff <maillist@turriff.net>
2013-05-23 16:37:43 +00:00
Grzegorz Bernacki
9fd7d2ddf4 Rework and organize pmap_enter_locked() function.
pmap_enter_locked() implementation was very ambiguous and confusing.
Rearrange it so that each part of the mapping creation is separated.
Avoid walking through the redundant conditions.
Extract vector_page specific PTE setup from normal PTE setting.

Submitted by:   Zbigniew Bodek <zbb@semihalf.com>
Sponsored by:   The FreeBSD Foundation, Semihalf
2013-05-23 12:24:46 +00:00
Grzegorz Bernacki
3bc567b6ad Stop using PVF_MOD, PVF_REF & PVF_EXEC flags in pv_entry, use PTE.
Using PVF_MOD, PVF_REF and PVF_EXEC is redundant as we can get the proper
info from PTE bits.
When the mapping is marked as executable and has been referenced we assume
that it has been executed. Similarly, when the mapping is set to be writable
and is referenced, it must have been due to write access to it.
PVF_MOD and PVF_REF flags are kept just for pmap_clearbit() usage,
to pass the information on which bit should be cleared.

Submitted by:   Zbigniew Bodek <zbb@semihalf.com>
Sponsored by:   The FreeBSD Foundation, Semihalf
2013-05-23 12:23:18 +00:00
Grzegorz Bernacki
2b3e821bcc Improve, optimize and clean-up ARMv6/v7 memory management related code.
Use pmap_find_pv if needed instead of multiplying its code throughout
pmap-v6.

Avoid possible NULL pointer dereference in pmap_enter_locked()
When trying to get m->md.pv_memattr, make sure that m != NULL,
in particular that vector_page is set to be NULL.

Do not set PGA_REFERENCED flag in pmap_enter_pv().
On ARM any new page reference will result in either entering the new
mapping by calling pmap_enter, etc. or fixing-up the existing mapping in
pmap_fault_fixup().
Therefore we set PGA_REFERENCED flag in the earlier mentioned cases and
setting it later in pmap_enter_pv() is just waste of cycles.

Delete unused pm_pdir pointer from the pmap structure.

Rearrange brackets in the fault cause detection in trap.c
Place the brackets correctly in order to see course of the conditions
instantaneously.

Unify naming in pmap-v6.c and improve style
Use naming common for whole pmap and compatible with other pmaps,
improve style where possible:
pm   -> pmap
pg   -> m
opg  -> om
*pt  -> *ptep
*pte -> *ptep
*pde -> *pdep

Submitted by:   Zbigniew Bodek <zbb@semihalf.com>
Sponsored by:   The FreeBSD Foundation, Semihalf
2013-05-23 12:15:23 +00:00
Grzegorz Bernacki
b8b08befd0 Switch to AP[2:1] access permissions model. Store "referenced"
bit in PTE.

Enable Access Flag in CPU control. With AF enabled each valid mapping
needs to have referenced bit in PTE set in order to be able to cache
it in the TLB.

AP[0] bit is to be used as reference flag.
All access permissions are encoded by AP[2:1] wherein AP[1] is in fact
"user enable" and AP[2](APX) is "write disable".

All mappings are always set to be valid. Reference emulation is performed
by setting/clearing reference flag in PTE.

md.pvh_attrs are no longer necessary however pv_flags are still being used
for now.

Marking vm_page as "dirty" or "referenced" is being performed on:
- page or flag fault servicing in pmap_fault_fixup(), basing on the fault
  type
- vm_fault servicing in pmap_enter() according to the desired protections
  and faulty access type
Redundant page marking has been removed as on ARM we know exactly when the
particular page is referenced or is going to be written.

Submitted by:	Zbigniew Bodek <zbb@semihalf.com>
Sponsored by:	The FreeBSD Foundation, Semihalf
2013-05-23 12:07:41 +00:00
Justin T. Gibbs
f2dc9238d7 Fix loss of the emulated keyboard on Xen PV HVM domains.
xen/xenbus/xenbusb.c:
    In xenbusb_probe_children(), do not modify the XenBus state of
    devices for which we have no PV driver support. An emulated device
    we do support may share this backend.  Hide the node from XenBus
    instead.

    This prevents closing the vkbd device, which Qemu's emulated keyboard
    device is using as the source for keyboard events.

    Tested with qemu-xen-traditional, qemu-xen and qemu stubdomains, all
    working as expected.

Submitted by:	Roger Pau Monne <roger.pau@citrix.com>
Reviewed by:	gibbs
MFC after:	1 week
2013-05-22 19:22:44 +00:00
Justin T. Gibbs
818fe953ac Correct panic on detach of Xen PV network interfaces.
dev/xen/netfront:
    In netif_free(), properly stop the interface and drain any pending
    timers prior to disconnecting from the backend device.

    Remove all media and detach our interface object from the system
    prior to deleting it.

PR:		kern/176471
Submitted by:	Roger Pau Monne <roger.pau@citrix.com>
Reviewed by:	gibbs
MFC after:	1 week
2013-05-22 17:13:03 +00:00
Luigi Rizzo
4b62214f4a Increase the (arbitrary) limit for the number of packets per tick
from 1k to 20k The previous value was good 10 years ago, but not
anymore now.

More importantly, lots of good surprises:
polling is incredibly effective under virtualization, and not only
prevents livelock but also saves most of the VM exit overhead in
receive mode.

Using polling, a FreeBSD instance under qemu-kvm remains perfectly
responsive even when bombed with 10 Mpps over an emulated e1000,
and happily processes 1.7 Mpps through ipfw.

Note that some incompatibilities still remain: e.g. polling is not
(yet) compatible with netmap, and seems to freeze the guest when
kern.polling.idle_poll=1

MFC after:	3 days
2013-05-22 16:32:18 +00:00
Attilio Rao
83b375ea16 Acquire read lock on the src object for vm_fault_copy_entry().
Sponsored by:	EMC / Isilon storage division
Reviewed by:	alc
2013-05-22 15:11:00 +00:00
Kirk McKusick
97371fa56d Properly spell sentinel (missed in 250891)
No functional changes.

Spotted by:  Navdeep Parhar and Alexey Dokuchaev
MFC after:   2 weeks
2013-05-22 05:07:55 +00:00
Alexander Motin
ee6b37b56b Fix NULL-dereference kernel panic in case of mps_attach() failure.
MFC after:	1 week
2013-05-22 02:15:07 +00:00
Kirk McKusick
b1bd9340fa Add missing buffer releases (brelse) after bread calls that return
an error. One could argue that returning a buffer even when it is
not valid is incorrect, but bread has always returned a buffer
valid or not.

Reviewed by: kib
MFC after:   2 weeks
2013-05-22 00:57:22 +00:00
Kirk McKusick
21844a3d5d Add missing 28th element to softdep types name array.
Found by:    Coverity Scan, CID 1007621
Reviewed by: kib
MFC after:   2 weeks
2013-05-22 00:48:24 +00:00
Kirk McKusick
d80dbbdb4a Null a pointer after it is freed so that when it is returned
the return value is NULL. Based on the returned flags, the
return value should never be inspected in the case where NULL
is returned, but it is good coding practice not to return a
pointer to freed memory.

Found by:    Coverity Scan, CID 1006096
Reviewed by: kib
MFC after:   2 weeks
2013-05-22 00:40:26 +00:00
Kirk McKusick
64e2b0887c Remove a bogus check for a NULL buffer pointer.
Add a KASSERT that it is not NULL.

Found by:    Coverity Scan, CID 1009114
Reviewed by: kib
MFC after:   2 weeks
2013-05-22 00:30:34 +00:00
Kirk McKusick
13e369a747 Properly spell sentinel (not sintenel or sentinal).
No functional changes.

Spotted by:  kib
MFC after:   2 weeks
2013-05-22 00:17:50 +00:00
Mateusz Guzik
ecbb2a1819 passing fd over unix socket: fix a corner case where caller
wants to pass no descriptors.

Previously the kernel would leak memory and try to free a potentially
arbitrary pointer.

Reviewed by:	pjd
2013-05-21 21:58:00 +00:00
Ed Schouten
553f17daf9 Add proper prerequisites for even two more headers.
Spotted by:   http://hacks.owlfolio.org/header-survey/
2013-05-21 21:50:11 +00:00
Ed Schouten
6ed0f50f78 Allow certain headers to be included more easily.
Spotted by:	http://hacks.owlfolio.org/header-survey/
2013-05-21 21:20:10 +00:00
Attilio Rao
bed927ee17 vm_object locking is not needed there as pages are already wired.
Sponsored by:	EMC / Isilon storage division
Submitted by:	alc
2013-05-21 20:54:03 +00:00
Attilio Rao
9af6d512f5 o Relax locking assertions for vm_page_find_least()
o Relax locking assertions for pmap_enter_object() and add them also
  to architectures that currently don't have any
o Introduce VM_OBJECT_LOCK_DOWNGRADE() which is basically a downgrade
  operation on the per-object rwlock
o Use all the mechanisms above to make vm_map_pmap_enter() to work
  mostl of the times only with readlocks.

Sponsored by:	EMC / Isilon storage division
Reviewed by:	alc
2013-05-21 20:38:19 +00:00
Ed Schouten
50c77c6e8b Add <uchar.h>.
The <uchar.h> header, part of C11, adds a small number of utility
functions for 16/32-bit "universal" characters, which may or may not be
UTF-16/32. As our wchar_t is already ISO 10646, simply add light-weight
wrappers around wcrtomb() and mbrtowc().

While there, also add (non-yet-standard) _l functions, similar to the
ones we already have for the other locale-dependent functions.

Reviewed by:	theraven
2013-05-21 19:59:37 +00:00
Jung-uk Kim
ab76bc977a Connect flex 2.5.37 to the build and bump __FreeBSD_version. 2013-05-21 19:32:35 +00:00
Jaakko Heinonen
9641a51279 Remove an extra semicolon from the DOT language output.
PR:		kern/178540
Submitted by:	Trond Endrestol
MFC after:	1 week
2013-05-21 18:40:54 +00:00
Adrian Chadd
72910f03e5 Implement a separate hardware queue threshold for aggregate and non-aggr
traffic.

When transmitting non-aggregate traffic, we need to keep the hardware
busy whilst transmitting or small bursts in txdone/tx latency will
kill us.

This restores non-aggregate iperf performance, especially when doing
TDMA.

Tested:

* AR5416<->AR5416, TDMA
* AR5416 STA <-> AR9280 AP
2013-05-21 18:13:57 +00:00
Adrian Chadd
dd6a574e09 Enable the use of TDMA on an 802.11n channel (with aggregation disabled,
of course.)

There's a few things that needed to happen:

* In case someone decides to set the beacon transmission rate to be
  at an MCS rate, use the MCS-aware version of the duration calculation
  to figure out how long the received beacon frame was.

* If TxOP enforcing is available on the hardware and we're doing TDMA,
  enable it after a reset and set the TDMA guard interval to zero.
  This seems to behave fine.

TODO:

* Although I haven't yet seen packet loss, the PHY errors that would be
  triggered (specifically Transmit-Override-Receive) aren't enabled
  by the 11n HAL.  I'll have to do some work to enable these PHY errors
  for debugging.

What broke:

* My recent changes to the TX queue handling has resulted in the driver
  not keeping the hardware queue properly filled when doing non-aggregate
  traffic.  I have a patch to commit soon which fixes this situation
  (albeit by reminding me about how my ath driver locking isn't working
  out, sigh.)

  So if you want to test this without updating to the next set of patches
  that I commit, just bump the sysctl dev.ath.X.hwq_limit from 2 to 32.

Tested:

* AR5416 <-> AR5416, with ampdu disabled, HT40, 5GHz, MCS12+Short-GI.
  I saw 30mbit/sec in both directions using a bidirectional UDP test.
2013-05-21 18:02:54 +00:00
Marcel Moolenaar
972aa49664 Fix the PowerPC Book-E register definitions used by the remote GDB
protocol.

Obtained from:	Juniper Networks, Inc.
2013-05-21 18:00:47 +00:00
Adrian Chadd
6ea069190d Fix build break - the SetCapability calls return HAL_BOOL,
not HAL_STATUS.
2013-05-21 14:28:05 +00:00
Konstantin Belousov
f85769eb75 Regenerate. 2013-05-21 11:41:08 +00:00
Konstantin Belousov
48947eccee Fix the wait6(2) on 32bit architectures and for the compat32, by using
the right type for the argument in syscalls.master.  Also fix the
posix_fallocate(2) and posix_fadvise(2) compat32 syscalls on the
architectures which require padding of the 64bit argument.

Noted and reviewed by:	jhb
Pointy hat to:	kib
MFC after:	1 week
2013-05-21 11:40:16 +00:00
Konstantin Belousov
74c7ff1a0e Do not leak the NULLV_NOUNLOCK flag from the nullfs_unlink_lowervp(),
for the case when the nullfs vnode is not reclaimed.  Otherwise, later
reclamation would not unlock the lower vnode.

Reported by:	antoine
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-21 11:31:56 +00:00
Konstantin Belousov
4f493a25f4 Fix the hardware watchpoints on SMP amd64. Load the updated %dr
registers also on other CPUs, besides the CPU which happens to execute
the ddb.  The debugging registers are stored in the pcpu area,
together with the command which is executed by the IPI stop handler
upon resume.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-21 11:24:32 +00:00
Konstantin Belousov
ea38ca6ea5 Add amd64-specific ddb command 'show phys2dmap', which calculates the
address in the direct map corresponding to the given physical address.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-21 11:07:12 +00:00
Konstantin Belousov
4fab678be2 Add ddb command 'show pginfo' which provides useful information about
a vm page, denoted either by an address of the struct vm_page, or, if
the '/p' modifier is specified, by a physical address of the
corresponding frame.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-21 11:04:00 +00:00
Hans Petter Selasky
6d5ae34a44 Add new USB quirk.
MFC after:	1 week
PR:		usb/178771
2013-05-21 06:13:38 +00:00
Adrian Chadd
38aa9f3688 Extend the TXOP enforce capability to support checking whether it's
supported.
2013-05-21 05:51:49 +00:00
Marcel Moolenaar
cb34ed4434 Add basic support for FDT to i386 & amd64. This change includes:
1.  Common headers for fdt.h and ofw_machdep.h under x86/include
    with indirections under i386/include and amd64/include.
2.  New modinfo for loader provided FDT blob.
3.  Common x86_init_fdt() called from hammer_time() on amd64 and
    init386() on i386.
4.  Split-off FDT specific low-level console functions from FDT
    bus methods for the uart(4) driver. The low-level console
    logic has been moved to uart_cpu_fdt.c and is used for arm,
    mips & powerpc only. The FDT bus methods are shared across
    all architectures.
5.  Add dev/fdt/fdt_x86.c to hold the fdt_fixup_table[] and the
    fdt_pic_table[] arrays. Both are empty right now.

FDT addresses are I/O ports on x86. Since the core FDT code does
not handle different address spaces, adding support for both I/O
ports and memory addresses requires some thought and discussion.
It may be better to use a compile-time option that controls this.

Obtained from:	Juniper Networks, Inc.
2013-05-21 03:05:49 +00:00
Jung-uk Kim
a9d8d09c46 Merge ACPICA 20130517. 2013-05-20 23:52:49 +00:00
Jung-uk Kim
b3f35be0c6 - Prefer ACPI_COMPARE_NAME(a, b) macro over strncmp(a, b, ACPI_NAME_SIZE).
- Make sure the predefined name is a string type.
- Return slightly more useful errors.
2013-05-20 22:18:18 +00:00
Jung-uk Kim
ec23b5bfe7 Fix white spaces. 2013-05-20 22:10:01 +00:00
Julian Elischer
4af706f560 Remove accidentally included line..
No effect as it wasn't used but was a) wrong   b) clutter
2013-05-20 20:14:12 +00:00
Brooks Davis
54fc0ecaf7 Spell extensions correctly.
Submitted by:	dim
2013-05-20 19:41:34 +00:00
Adrian Chadd
5b66d8a5ad Make the HT rate duration calculation work for MCS rates > 15. 2013-05-20 07:10:43 +00:00
Alexander Motin
57eed4a86f Fix vdc->Secondary_Element_Count metadata field access from 16 to 8 bit.
In some cases it could cause kernel panic during failed drive replacement.

Reported by:	trasz
MFC after:	1 week
2013-05-20 00:33:54 +00:00
Pawel Jakub Dawidek
9b9ff7d390 Style nits. 2013-05-19 23:30:24 +00:00
Pawel Jakub Dawidek
9b1040a574 Use SDT_PROBE1() instead of SDT_PROBE(). 2013-05-19 23:29:22 +00:00
Pawel Jakub Dawidek
838eb8639c Protect SDT_PROBE() with do { } while (0) loop. 2013-05-19 23:28:28 +00:00
Alexander V. Chernikov
6bdfdb2c5e Really fix netmask address family this time.
MFC with:	r250813
2013-05-19 19:42:46 +00:00
Alexander V. Chernikov
346e9c9de8 Finish r85740 : Make IPv6 netmask has address family set.
This pleases routing daemons like bird.

MFC after:	2 weeks
2013-05-19 19:19:01 +00:00
Andrew Turner
0d8d860f6e Add a comment explaining why stack_capture is empty for EABI and clang.
While here add a comment pointing out that, while r11 is not the frame
pointer on EABI as there is no frame pointer, it's value is unused so is
safe.
2013-05-19 16:25:09 +00:00
Michael Tuexen
e3581df21e Initialize the fibnum for outgoing packets to 0. This avoids
crashing due to the usage of uninitialized fibnum.
This bugs became visiable after
http://svnweb.freebsd.org/changeset/base/250700

MFC after: 2 weeks
2013-05-19 16:06:43 +00:00
Ed Schouten
b8501ae829 Remove lint case for _Thread_local.
I added this block, knowing that lint does not support _Thread_local.
When linting, we could argue that we don't care about TLS (yet). It
seems, however, that external pieces of software also sometimes do a
-Dlint, regex the output and compile it again.

Reported by:	swills
2013-05-19 07:44:01 +00:00
Jamie Gritton
761d2bb5b9 Refine the "nojail" rc keyword, adding "nojailvnet" for files that don't
apply to most jails but do apply to vnet jails.  This includes adding
a new sysctl "security.jail.vnet" to identify vnet jails.

PR:		conf/149050
Submitted by:	mdodd
MFC after:	3 days
2013-05-19 04:10:34 +00:00
Sean Bruno
156860b2b3 Update snd quirks for T520, T420, X220.
Group onboard mic and headphone mic jack together.  Creates association that
will switch between microphone inputs depending on the state of the headphone
jack being connected to a live mic.

Fixes onboard mic not working at all on T520.

Tested on T520, T420.
Suspect X220 needs this too, untested on.

MFC after:	1 month
2013-05-19 01:45:29 +00:00
Adrian Chadd
6112d22c3f More non-ATH_DEBUG build fixes. 2013-05-19 01:33:17 +00:00
Adrian Chadd
bd0edcac7c Since we're now using the ah pointer, always declare it.
This fixes non-DEBUG builds.
2013-05-19 00:53:06 +00:00
Steven Hartland
6fb5c84ea2 Added output of device QUIRKS for CAM and AHCI devices during boot.
Reviewed by:	mav
Approved by:	pjd (mentor)
MFC after:	2 weeks
2013-05-18 23:36:21 +00:00
Tim Kientzle
11ee687c67 Back out r250768 until I can further investigate why it might
be causing problems with the BeagleBone Black boot.
2013-05-18 22:42:21 +00:00
Rui Paulo
132804a6c4 Add support for the second GPIO pin bank on the Wii and add support for
shutting down the system.
2013-05-18 19:30:42 +00:00
Adrian Chadd
9be82a4209 Be (very) careful about how to add more TX DMA work.
The list-based DMA engine has the following behaviour:

* When the DMA engine is in the init state, you can write the first
  descriptor address to the QCU TxDP register and it will work.

* Then when it hits the end of the list (ie, it either hits a NULL
  link pointer, OR it hits a descriptor with VEOL set) the QCU
  stops, and the TxDP points to the last descriptor that was transmitted.

* Then when you want to transmit a new frame, you can then either:
  + write the head of the new list into TxDP, or
  + you write the head of the new list into the link pointer of the
    last completed descriptor (ie, where TxDP points), then kick
    TxE to restart transmission on that QCU>

* The hardware then will re-read the descriptor to pick up the link
  pointer and then jump to that.

Now, the quirks:

* If you write a TxDP when there's been no previous TxDP (ie, it's 0),
  it works.

* If you write a TxDP in any other instance, the TxDP write may actually
  fail.  Thus, when you start transmission, it will re-read the last
  transmitted descriptor to get the link pointer, NOT just start a new
  transmission.

So the correct thing to do here is:

* ALWAYS use the holding descriptor (ie, the last transmitted descriptor
  that we've kept safe) and use the link pointer in _THAT_ to transmit
  the next frame.

* NEVER write to the TxDP after you've done the initial write.

* .. also, don't do this whilst you're also resetting the NIC.

With this in mind, the following patch does basically the above.

* Since this encapsulates Sam's issues with the QCU behaviour w/ TDMA,
  kill the TDMA special case and replace it with the above.

* Add a new TXQ flag - PUTRUNNING - which indicates that we've started
  DMA.

* Clear that flag when DMA has been shutdown.

* Ensure that we're not restarting DMA with PUTRUNNING enabled.

* Fix the link pointer logic during TXQ drain - we should always ensure
  the link pointer does point to something if there's a list of frames.
  Having it be NULL as an indication that DMA has finished or during
  a reset causes trouble.

Now, given all of this, i want to nuke axq_link from orbit.  There's now HAL
methods to get and set the link pointer of a descriptor, so what we
should do instead is to update the right link pointer.

* If there's a holding descriptor and an empty TXQ list, set the
  link pointer of said holding descriptor to the new frame.

* If there's a non-empty TXQ list, set the link pointer of the
  last descriptor in the list to the new frame.

* Nuke axq_link from orbit.

Note:

* The AR9380 doesn't need this.  FIFO TX writes are atomic.  As long as
  we don't append to a list of frames that we've already passed to the
  hardware, all of the above doesn't apply.  The holding descriptor stuff
  is still needed to ensure the hardware can re-read a completed
  descriptor to move onto the next one, but we restart DMA by pushing in
  a new FIFO entry into the TX QCU.  That doesn't require any real
  gymnastics.

Tested:

* AR5210, AR5211, AR5212, AR5416, AR9380 - STA mode.
2013-05-18 18:27:53 +00:00
Adrian Chadd
f2f6761490 Re-add some code to exclude transmitting if we're in reset.
This fixes some "transmitting during reset" bugs that crept in after
I messed around with this part of the transmit path.
2013-05-18 13:58:07 +00:00
Tim Kientzle
3f15ba3d2c Correct the spelling of "okay".
Add pinmux setting for the Reset GPIO pin for MMC1.
2013-05-18 12:54:37 +00:00
Tim Kientzle
b5eb012033 Label the mmc child after the parent. 2013-05-18 12:53:20 +00:00
Alexander V. Chernikov
22f8ce4335 Use separate function to update mbuf checksum flags instead of
duplicating the same code in different places.

MFC after:	2 weeks
2013-05-18 08:14:21 +00:00
Hans Petter Selasky
e5359a3bba Don't clear stall at first time use of USB MIDI endpoints.
Most likely some non-USB compliant devices will choke on it
sooner or later. Clear stall is strictly speaking not needed.
If the first MIDI command sent or transmitted is lost, this
is not a big problem for us.

MFC after:	1 week
2013-05-18 07:16:20 +00:00
Alexander V. Chernikov
d54455b0c9 Fix rte leak introduced in r248070.
MFC after:	2 weeks
2013-05-18 07:10:22 +00:00
Hans Petter Selasky
33da3daa40 Fix issue with "Logitech Webcam C525":
Set a valid alternate interface setting
when enumerating USB audio devices else
the device mentioned will not work like
expected.

PR:		usb/178722
MFC after:	1 week
2013-05-18 07:03:06 +00:00
Michael Tuexen
553bb0688c Set errno to ETIMEDOUT if an SCTP association times out during
setup.

MFC after: 1 week
2013-05-17 22:26:05 +00:00
Michael Tuexen
b05fbf171e Don't send an ABORT chunk with verification 0.
MFC after: 1 week
2013-05-17 21:45:52 +00:00
Warner Losh
8b18cb1c23 For ARM, MIPS, and PowerPC, default to 32-byte alignment, but allow it
to be as small as 8.
2013-05-17 20:53:15 +00:00
Attilio Rao
e3ed7ff03f Use readlocking now that assertions on vm_page_lookup() are relaxed.
Sponsored by:	EMC / Isilon storage division
Reviewed by:	alc
Tested by:	flo, pho
2013-05-17 20:03:55 +00:00
Gavin Atkinson
1c6951aeb6 o Retrive the part number (CP2103 etc) from the hardware on attach.
o  The CP2101 and CP2102 do not support GPIO pin use at all, enforce this.
o  Support reading the GPIO status on the second port of the CP2105.  More
   work is needed before the CP2105 GPIO pins can be used as outputs.

Hardware donated by:	Silicon Labs
MFC after:		3 weeks
2013-05-17 19:13:31 +00:00
Alan Cox
c141ae7f49 Relax the object locking in vm_fault_prefault(). A read lock suffices.
Reviewed by:	attilio
Sponsored by:	EMC / Isilon Storage Division
2013-05-17 19:02:36 +00:00
Alan Cox
658f180b3b Relax the object locking assertion in pmap_enter_locked().
Reviewed by:	attilio
Sponsored by:	EMC / Isilon Storage Division
2013-05-17 18:59:00 +00:00
Alan Cox
767a6420bc Relax the object locking assertion in vm_page_lookup(). Now that a radix
tree is used to maintain the object's collection of resident pages,
vm_page_lookup() no longer needs an exclusive lock.

Reviewed by:    attilio
Sponsored by:   EMC / Isilon Storage Division
2013-05-17 18:49:43 +00:00
Rui Paulo
613c4afd62 Revert r250692. We'll use 1 kernel config file for the BeagleBone models. 2013-05-17 15:20:45 +00:00
Konstantin Belousov
f05f3c1764 Add new capability types encodings from HyperTransport I/O Link
Specification revisions 3.00 and 3.10.

Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
MFC after:	1 week
2013-05-17 14:04:31 +00:00