Commit Graph

88398 Commits

Author SHA1 Message Date
Ryan Stone
a916893f23 Some aac(4) adapters will always report that a direct access device is
offline in response to a INQUIRY command that does not retreive vital
product data(I personally have observed the behaviour on an Adaptec 2405
and a 5805).  Force the peripheral qualifier to "connected" so that upper
layers correctly recognize that a disk is present.

This bug was uncovered by r216236.  Prior to that fix, aac(4) was
accidentally clearing the peripheral qualifier for all inquiry commands.

This fixes an issue where passthrough devices were not created for
disks behind aac(4) controllers suffering from the bug.  I have
verified that if a disk is not present that we still properly detect
that and not create the passthrough device.

Sponsored by:	Sandvine Incorporated
MFC after:	1 week
2012-09-25 19:12:12 +00:00
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
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
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
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
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
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
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
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
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
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
Pawel Jakub Dawidek
45a1f1e1ff Add rounddown2() macro similar to the roundup2() macro. 2012-09-22 17:49:25 +00:00
Andriy Gapon
81c4584e30 zfs: allow a zvol to be used as a pool vdev, again
Do this by checking if spa_namespace_lock is already held and not taking
it again in that case.
Add a comment explaining why that is done and why it is safe.

Reviewed by:	pjd
MFC after:	24 days
2012-09-22 17:42:53 +00:00
Pawel Jakub Dawidek
a6512306ce Fix an obvious typo. 2012-09-22 17:41:56 +00:00
Pawel Jakub Dawidek
3c5a057574 As in r226967, r226987 and r232401 changes to UFS and TMPFS remove cache
entries associated with the source and the target of rename().

MFC after:	1 week
2012-09-22 17:32:40 +00:00
Michael Tuexen
2089750009 Small cleanups. No functional change.
MFC after:	10 days
2012-09-22 14:39:20 +00:00
Gleb Smirnoff
03fb709e1f Convert more M_WAITOK malloc() to M_NOWAIT.
Reported by:	Kim Culhan <w8hdkim gmail.com>
2012-09-22 12:49:36 +00:00
Pawel Jakub Dawidek
171f6b3a34 Use the topology lock to protect list of providers while withering them.
It is possible that provider is destroyed while we are iterating over the
list.

Reported by:	Brian Parkison <parkison@panzura.com>
Discussed with:	phk
MFC after:	1 week
2012-09-22 12:41:49 +00:00
Konstantin Belousov
787a64ddd2 Do not skip two elements of the tid_buffer when reusing the buffer
slot. This eventually results in exhaustion of the tid space, causing
new threads get tid -1 as identifier.

The bad effect of having the thread id equal to -1 is that
UMTX_OP_UMUTEX_WAIT returns EFAULT for a lock owned by such thread,
because casuword cannot distinguish between literal value -1 read from
the address and -1 returned as an indication of faulted
access. _thr_umutex_lock() helper from libthr does not check for
errors from _umtx_op_err(2), causing an infinite loop in
mutex_lock_sleep().

We observed the JVM processes hanging and consuming enormous amount of
system time on machines with approximately 100 days uptime.

Reported by:	Mykola Dzham <freebsd levsha org ua>
MFC after:	1 week
2012-09-22 12:17:09 +00:00
Gleb Smirnoff
29bdd62c85 When connection rate hits and we overload a source to a table,
we are actually editing table, which means editing rules,
thus we need writer access to 'em.

Fix this by offloading the update of table to the same taskqueue,
we already use for flushing. Since taskqueues major task is now
overloading, and flushing is optional, do mechanical rename
s/flush/overload/ in the code related to the taskqueue.

Since overloading tasks do unsafe referencing of rules, provide
a bandaid in pf_purge_unlinked_rules(). If the latter sees any
queued tasks, then it skips purging for this run.

In table code:
- Assert any lock in pfr_lookup_addr().
- Assert writer lock in pfr_route_kentry().
2012-09-22 10:14:47 +00:00
Gleb Smirnoff
e706fd3a3a In pfr_insert_kentry() return ENOMEM if memory allocation failed. 2012-09-22 10:04:48 +00:00
Gleb Smirnoff
7348c5240d Fix fallout from r236397 in pfr_update_stats(), that was missed
later in r237155. We need to zero sockaddr before lookup. While
here, make pfr_update_stats() panic on unknown af.
2012-09-22 10:02:44 +00:00
Hans Petter Selasky
9b42038b8a Apply some more casting. 2012-09-22 08:02:42 +00:00
Rui Paulo
5ea861555c Improve the check for p4 opened files.
Now we only search for opened files in ${SYSDIR}, which makes it
possible to use multiple source trees.
2012-09-22 07:44:36 +00:00
Hans Petter Selasky
8692ca3647 Apply correct casting. 2012-09-22 07:27:24 +00:00
Alan Cox
6b7d314db2 Since UMA_ZONE_NOFREE is specified when l2zone and l2table_zone are created,
there is no need to release and reacquire the pmap and pvh global locks
around calls to uma_zfree().  Recursion into the pmap simply won't occur.

Eliminate the use of M_USE_RESERVE.  It is deprecated and, in fact, counter-
productive, meaning that it actually makes the memory allocation request
more likely to fail.

Eliminate the macros pmap_{alloc,free}_l2_dtable().  They are of limited
utility, and pmap_free_l2_dtable() was inconsistently used.

Tidy up pmap_init().  In particular, change the initialization of the PV
zone so that it doesn't span the initialization of the l2 and l2table zones.

Tested by:	jmg
2012-09-22 06:54:03 +00:00
Andrew Turner
1161298251 Create a common set_stackptrs in sys/arm/machdep.c.
On single core devices set_stackptrs is only ever called with cpu = 0 in
initarm and will be identical to the existing function. On SMP this needs
to be implemented for sys/arm/mp_machdep.c, but the implementations are
identical for each SoC.
2012-09-22 06:41:56 +00:00
Andreas Tobler
bf23276b69 Remove leftover from r215163. 2012-09-21 21:27:57 +00:00
Rui Paulo
b0bf1a1836 Remove #ident macro. 2012-09-21 19:18:39 +00:00
Andreas Tobler
777813c555 Implement elfN(reloc) for powerpc. With this change the kernel is now able to
resolve dependencies of modules at boot time and load additional modules when
needed.

MFC after:	1 week
2012-09-21 18:21:31 +00:00
Dimitry Andric
f99157cced After r205013, amd64 and i386 CPU family and model IDs were printed out
in hexadecimal, but without any 0x prefix, which can be very misleading.

MFC after:	3 days
2012-09-21 10:31:19 +00:00
Hans Petter Selasky
2a4e4c6772 Fix typo. 2012-09-20 15:11:59 +00:00
Kevin Lo
26f370d011 Fix typo: s/protocl/protocol 2012-09-20 10:07:31 +00:00
Gleb Smirnoff
3b7d677b8f Convert lagg(4) to use if_transmit instead of if_start.
In collaboration with:	thompsa, sbruno, fabient
2012-09-20 10:05:10 +00:00
Konstantin Belousov
5f9c767b19 Plug the accounting leak for the wired pages when msync(MS_INVALIDATE)
is performed on the vnode mapping which is wired in other address space.

While there, explicitely assert that the page is unwired and zero the
wire_count instead of substract. The condition is rechecked later in
vm_page_free(_toq) already.

Reported and tested by:	zont
Reviewed by:	alc (previous version)
MFC after:	1 week
2012-09-20 09:52:57 +00:00
Gavin Atkinson
3cdfd8d3b2 The correct generic term for PCIS_STORAGE_NVM is "NVM" not "NVM Express".
Submitted by:	jimharris
MFC after:	6 days
2012-09-20 08:30:17 +00:00
Gleb Smirnoff
b7340ded6e Reduce copy/paste when freeing an source node. 2012-09-20 07:04:08 +00:00
Gleb Smirnoff
22c914789e Utilize Jenkins hash with random seed for source nodes storage. 2012-09-20 06:52:05 +00:00
Kevin Lo
b7e1113e8f Fix typo: s/pakcet/packet 2012-09-20 03:29:43 +00:00
Adrian Chadd
4e81f27c59 Introduce the CLRDMASK gating based on tid->clrdmask, enabling filtered
frames to occur.

* Create a new function which will set the bf_flags CLRDMASK bit
  if required.
* For raw frames, always set CLRDMASK.
* For BAR, ADDBA frames, always set CLRDMASK.
* For everything else, check if CLRDMASK needs to be set before
  calling tx_setds() or tx_setds11n().
* When unpausing a queue or drain/resetting it, set tid->clrdmask=1
  just to ensure traffic starts flowing.

What I need to do:

* Modify that function to _clear_ the CLRDMASK if it's not required,
  or retried frames may have CLRDMASK set when they don't need to.
  (Which isn't a huge deal, but..)

Whilst I'm here:

* ath_tx_normal_xmit() should really act like the AMPDU session TX
  functions - any incomplete frames will end up being assigned
  ath_tx_normal_comp() which will decrement tid->hwq_depth - but that
  won't have been incremented.

  So whilst I'm here, add a comment to do that.

* Fix the debug print function to be slightly clearer about things;
  it's not a good sign when I can't interpret my own debugging output.

I've done some testing on AR9280/AR5416/AR9160 STA and AP modes.
2012-09-20 03:13:20 +00:00
Gleb Smirnoff
7b11548469 Add missing break.
Pointy hat to:	glebius
2012-09-20 03:09:58 +00:00
Adrian Chadd
d05b576d61 Place the comment where it should be. 2012-09-20 03:04:19 +00:00
Adrian Chadd
088d8b81f3 Add a work-around for some strange net80211 BAR races in the wireless
stack.

There are unfortunately quite a few odd cases in BAR TX and BAR TX
retransmission that I haven't yet fully diagnosed.  So for now, add
this work-around so the resume() function isn't called too often,
decrementing pause to -1 (and causing things to stay paused.)
2012-09-20 03:03:01 +00:00
Rick Macklem
c52005a31d Modify the NFSv4 client so that it can handle owner
and owner_group strings that consist entirely of
digits, interpreting them as the uid/gid number.
This change was needed since new (>= 3.3) Linux
servers reply with these strings by default.
This change is mandated by the rfc3530bis draft.
Reported on freebsd-stable@ under the Subject
heading "Problem with Linux >= 3.3 as NFSv4 server"
by Norbert Aschendorff on Aug. 20, 2012.

Tested by:	norbert.aschendorff at yahoo.de
Reviewed by:	jhb
MFC after:	2 weeks
2012-09-20 02:49:25 +00:00
Jung-uk Kim
042ff955b5 Merge ACPICA 20120913. 2012-09-19 23:25:24 +00:00
Tijl Coosemans
303d68bc4f Fix a panic when trying to play invalid audio tracks. 2012-09-19 18:42:31 +00:00
Jim Harris
7e2fd60604 In nvme(4), set device description for BUS_PROBE_GENERIC case.
Reported by:	jhb
2012-09-19 18:25:25 +00:00
Gavin Atkinson
a5c5eaae8c Recognise NVM Express devices and pretty-print their name.
MFC after:	1 week
2012-09-19 18:22:14 +00:00
Jim Harris
d891b199bf Report nvme(4) as a generic driver for NVMe devices if PCI class, subclass
and programming interface codes match.

Sponsored by:	Intel
2012-09-19 16:21:23 +00:00
Jim Harris
6483d5a592 Add constants for programming interfaces for NVM/solid state storage
controller sub-class code.

Reference:  PCI Code and ID Assignment Specification Rev 1.2

Sponsored by:	Intel
Inspired by:	gavin
MFC after: 	1 week
X-MFC-With:	r240694
2012-09-19 15:43:30 +00:00
Gavin Atkinson
536f8fdecf Add PCI subclass for NVM Express devices.
Reference:
http://www.nvmexpress.org/index.php/download_file/view/42/1/NVM_Express_1_0b.pdf
section 2.1.5.

MFC after:	1 week
2012-09-19 12:54:25 +00:00
Gavin Atkinson
e935190a33 Switch some PCI register reads from using magic numbers to using the names
defined in pcireg.h

MFC after:	1 week
2012-09-19 12:27:23 +00:00
John Baldwin
26e76e98ef As a followup to r234501, ensure that the native ioctl path always allocates
a 4kb buffer if a request uses a buffer size of 0.  (The Linux ioctl path
already did this.)

PR:		kern/155658
Submitted by:	Andreas Longwitz
MFC after:	1 week
2012-09-19 11:54:32 +00:00
Gavin Atkinson
d11d0374ab Add entries for two USB devices I have locally.
MFC after:	1 week
2012-09-18 22:25:49 +00:00
Gavin Atkinson
389c8bd51e Align the PCI Express #defines with the style used for the PCI-X
#defines.  This also has the advantage that it makes the names more
compact, iand also allows us to correct the non-uniform naming of
the PCIM_LINK_* defines, making them all consistent amongst themselves.

This is a mostly mechanical rename:
  s/PCIR_EXPRESS_/PCIER_/g
  s/PCIM_EXP_/PCIEM_/g
  s/PCIM_LINK_/PCIEM_LINK_/g

When this is MFC'd, #defines will be added for the old names to assist
out-of-tree drivers.

Discussed with:	jhb
MFC after:	1 week
2012-09-18 22:04:59 +00:00
Adrian Chadd
0aa5c1bbf5 Oops - take a copy of ath_tx_status from the buffer before the TX processing
is done.

The aggregate path was definitely accessing 'ts' before it was actually
being assigned.

This had the side effect of over-filtering frames, since occasionally that
bit would be '1'.

Whilst here, do the same thing in the non-aggregate completion function -
as calling the filter function may also invalidate bf.

Pointy hat to: adrian, for not noticing this over many, many code reviews.
2012-09-18 20:33:04 +00:00
Gleb Smirnoff
2864dbbfc1 If caller specifies UMA_ZONE_OFFPAGE explicitly, then do not waste memory
in an allocation for a slab.

Reviewed by:	jeff
2012-09-18 20:28:55 +00:00
Jim Harris
8a382371f1 Add #if 0 around nvme_async_event_cb() until NVMe AER functionality
can be tested.

This fixes a build warning found only with clang.
2012-09-18 18:23:21 +00:00
Jim Harris
be4dcf1bfa Add __aligned(4) to NVMe defined data structures.
This fixes issue in nvmecontrol(8), where clang throws a cast-align
warning when casting a __packed structure pointer to a uint32_t
pointer as part of printing raw hex output.

Reported by: dhw
2012-09-18 18:16:52 +00:00
Alexander Motin
1123f298f3 Fix panics on attempt to dereference uninitizlized pointer, returned via
'path' argument of ofw_parsedev() if devspec refers raw device with no path.

For example, `ls /pci@1f,0/ide@d/disk@0,0:a/` works fine, while
`ls /pci@1f,0/ide@d/disk@0,0:a` panicked before this change.
2012-09-18 15:38:42 +00:00
Andriy Gapon
e67c0426bc hwpmc amd_pcpu_fini: fix a bug in code locked under DEBUG
MFC after:	16 days
2012-09-18 13:33:39 +00:00
Gleb Smirnoff
32726fe911 Do more than r236298 did in the projects/pf branch: use M_NOWAIT in
altq_add() and its descendants. Currently altq(4) in FreeBSD is configured
via pf(4) ioctls, which can't configure altq(4) w/o holding locks.
Fortunately, altq(4) code in spife of using M_WAITOK is ready to receive
NULL from malloc(9), so change is mostly mechanical. While here, utilize
M_ZERO instead of bzero().

A large redesign needed to achieve M_WAITOK usage when configuring altq(4).
Or an alternative (not pf(4)) configuration interface should be implemented.

Reported by:	pluknet
2012-09-18 12:34:35 +00:00
Gleb Smirnoff
9ed8bbbdbe Fix build, pass the pointy hat please. 2012-09-18 12:21:32 +00:00
Gleb Smirnoff
7f7ef494f1 Provide kernel compile time option to make pf(4) default rule to drop.
This is important to secure a small timeframe at boot time, when
network is already configured, but pf(4) is not yet.

PR:		kern/171622
Submitted by:	Olivier Cochard-LabbИ <olivier cochard.me>
2012-09-18 11:07:19 +00:00
Gleb Smirnoff
1d6139c0e4 Make ruleset anchors in pf(4) reentrant. We've got two problems here:
1) Ruleset parser uses a global variable for anchor stack.
2) When processing a wildcard anchor, matching anchors are marked.

To fix the first one:

o Allocate anchor processing stack on stack. To make this allocation
  as small as possible, following measures taken:
  - Maximum stack size reduced from 64 to 32.
  - The struct pf_anchor_stackframe trimmed by one pointer - parent.
    We can always obtain the parent via the rule pointer.
  - When pf_test_rule() calls pf_get_translation(), the former lends
    its stack to the latter, to avoid recursive allocation 32 entries.

The second one appeared more tricky. The code, that marks anchors was
added in OpenBSD rev. 1.516 of pf.c. According to commit log, the idea
is to enable the "quick" keyword on an anchor rule. The feature isn't
documented anywhere. The most obscure part of the 1.516 was that code
examines the "match" mark on a just processed child, which couldn't be
put here by current frame. Since this wasn't documented even in the
commit message and functionality of this is not clear to me, I decided
to drop this examination for now. The rest of 1.516 is redone in a
thread safe manner - the mark isn't put on the anchor itself, but on
current stack frame. To avoid growing stack frame, we utilize LSB
from the rule pointer, relying on kernel malloc(9) returning pointer
aligned addresses.

Discussed with:		dhartmei
2012-09-18 10:54:56 +00:00
Gleb Smirnoff
9e8c4accee - Add $FreeBSD$ to allow modifications to this file.
- Move $OpenBSD$ to a more standard place.
2012-09-18 10:52:46 +00:00
Adrian Chadd
f1bc738ece Implement my first cut at filtered frames in aggregation sessions.
The hardware can optionally "filter" frames if successive transmissions
to a given node (ie, "entry in the keycache") fail.  That way the hardware
can implement a kind of early abort of all the other frames queued to
that destination, rather than simply trying to TX each frame to that
destination (and failing.)

The background:

* If a frame comes back as being filtered, the hardware didn't try to
  TX it (or it was outside the TX burst opportunity.) So, take it as a hint
  that some (but not all, see below) frames to the destination may be
  filtered.

* If the CLRDMASK bit is set in a TX descriptor, the "filter to this
  destination" bit in the keycache entry is cleared and TX to that host
  will be unconditionally retried.

* Right now everything has the CLRDMASK bit set, so filtered frames
  tend to be aggregates and frames that fall outside of the WME burst
  window. It was a bit worse in the past as I had messed up the TX
  flags and CLRDMASK wasn't being set on aggregate frames.

The annoying bits:

* It's easy (ish) to do for aggregate session frames - firstly, they
  can be retried in any order as long as they're within the BAW, and
  there's already a bunch of infrastructure tracking how many frames
  the TID has queued to the hardware (tid->hwq_depth.) However, for
  frames that bypassed the software queue, hwq_depth doesn't get
  incremented. I'll fix that in a subsequent commit.

* For non-aggregate session frames, the only retries that can occur
  are ones for sequence numbers that hvaen't successfully been TXed yet.
  Since there's no re-ordering going on in non-aggregate sessions, if any
  subsequent seqno frames make it out, any filtered frames before that
  seqno need to be dropped.

  Hence why this initially is just for aggregate session frames.

* Since there may be intermediary frames to the destination that
  have CLRDMASK set - for example, any directly dispatched management
  frames to that destination - it's possible that there will be some
  filtered frames followed up by some non filtered frames.  Thus,
  it can't be assumed that once you see a filtered frame for the given
  destination node, all subsequent frames for all TIDs will be filtered.

Ok, with that in mind:

* Create a per-TID filtered frame queue for frames that the hardware
  returns as filtered.

* Track filtered frames per-tid, rather than per-node.  It just makes
  the locking much easier.

* When a filtered frame appears in the completion function, the node
  transitions to "filtered", and all subsequent completed error frames
  (filtered or otherwise) are put on the filtered frame queue.  The TID
  is paused once (during the transition from non-filtered to filtered).

* If a filtered frame retry count exceeds SWMAX_RETRIES, a BAR should be
  sent.

* Once all the frames queued to the hardware for the given filtered frame
  TID, transition back from filtered frame to non-filtered frame, which
  means pre-pending all the filtered frames onto the head of the software
  queue, clearing the filtered frame state and unpausing the TID.

Things get quite hairy around handling completion (aggr, non-aggr, norm,
direct-dispatched frames to a hardware queue); whether it's an "error",
"cleanup" or "BAR" state as well as filtered, which order to do things
in (eg do filtered BEFORE checking for BAR, as the filter completion
may be needed to actually transmit a BAR frame.)

This work has definitely reminded me that I have to tidy up all the locking
and remove some of the ridiculous lock/unlock/lock/unlock going on in the
completion functions.

It's also reminded me that I should really split out TID versus hardware TXQ
locking, even if the underlying locking is still the destination hardware TXQ.

Finally, this is all pre-requisite for working on AP mode power save support
(PS-POLL, uAPSD) as well as improving performance to misbehaving nodes (as
they can transition into filter mode, stopping any TX until everything has
caught up.)

Finally (ish) - this should also be done for non-aggregate sessions as
there are still plenty of laptops and mobile devices that don't speak
802.11n but do wish for stable, useful power save AP support where packets
aren't simply dropped.  This requires software retransmission for
non-aggregate sessions to be implemented, which includes the caveats I've
mentioned above.

Finally finally - this doesn't yet do anything about the CLRDMASK bit in the
TX descriptor.  That's still unconditionally set to 1.  I'll debug the
current work (mostly ensuring I haven't busted up the hairy transitions
between BAR, filtered, error (all frames in an aggregate failing) and
cleanup (when transitioning from aggregation -> non-aggregation.))

Finally finally finally - this is all original work by yours truely, rather
than ported from the Atheros internal driver codebase or Linux ath9k.

Tested:
 * AR9280, AR5416 in STA mode
 * AR9280, AR9130 in hostap mode
 * Lots and lots of iperf testing in very marginal and non-marginal conditions,
   complete with inducing filtered frames + BAR TX conditions.
2012-09-18 10:14:17 +00:00
Gleb Smirnoff
effbcf3842 Fix DIOCNATLOOK: zero key padding before performing lookup. 2012-09-18 09:15:32 +00:00
Andriy Gapon
a80a10b13b loader/i386: replace ugly inb/outb re-implementations with cpufunc.h
Use of __builtin_constant_p in a function that is only called via
a pointer is a good example of how out-of-date it was.

Suggested by:	bde
MFC after:	1 week
2012-09-18 08:53:11 +00:00
Andriy Gapon
154fc7b6c7 acpi_cpu: explicitly notify userland about c-state changes
... after they are committed.
A notification is sent per CPU.

Reviewed by:	imp
MFC after:	3 weeks
2012-09-18 08:17:29 +00:00
Andriy Gapon
6ed9e9f32f zfs: correctly calculate dn_bonuslen for saving SAs to disk
Since all attribute values start at 8-byte aligned boundary, we would
previously incorrectly calculate dn_bonuslen if any attribute but the
last had a variable-length value with length not multiple of 8.

Reported by:	Nicolas Rachinsky <fbsd-mas-0@ml.turing-complete.org>
Tested by:	Nicolas Rachinsky <fbsd-mas-0@ml.turing-complete.org>
Reviewed by:	Matthew Ahrens <mahrens@delphix.com> (for upstream)
MFC after:	2 weeks
2012-09-18 08:02:54 +00:00
Andriy Gapon
ea559fb573 zfs: allow both DEBUG and ZFS_DEBUG to be defined on command line
Discussed with:	pjd
MFC after:	10 days
2012-09-18 08:00:56 +00:00
Kevin Lo
9f614af4cf Add missing break 2012-09-18 08:00:43 +00:00
Andriy Gapon
85f5b9aa70 g_disk_flushcache definitely should not be traced under G_T_TOPOLOGY
... use G_T_BIO instead

MFC after:	1 week
2012-09-18 07:57:34 +00:00
Kevin Lo
08466b02d4 Remove bogus break statements.
Obtained from:	DragonFly
2012-09-18 02:19:43 +00:00
Adrian Chadd
8122c3163f Add a couple of accessor inline functions for state that exists in net80211.
Obtained from:	Qualcomm Atheros
2012-09-18 01:27:24 +00:00
Attilio Rao
6a612df12c Remove namespace pollution in _rmlock.h by defining rm_queue structure
directly in _rmlock.h and then including it (and its dependencies)
in pcpu.h. This leads to few _*.h headers to be included in pcpu.h
but this is not considered a big deal.

Really pc_rm_queue should be implemented as a dynamic member with
DPCPU interface, but we really want to keep the read acquisition as
fast as possible, so even the further pc_dynamic indirection should be
avoided, and the pollution is dealt like this.

Discussed with:	jhb
MFC after:	1 week
2012-09-18 00:43:15 +00:00
Adrian Chadd
d94f2d7f34 Rename AH_MIMO_MAX_CHAINS to AH_MAX_CHAINS, for compatibility with
internal atheros HAL code.
2012-09-17 23:24:45 +00:00
Jim Harris
978b27047d Add nvme(4) and nvd(4) Makefiles to the tree.
Noticed by:	pluknet
Pointy-hat to:  jimharris
2012-09-17 19:58:02 +00:00
Jim Harris
eb85d44f06 Integrate nvme(4) and nvd(4) into the amd64 and i386 builds.
Sponsored by:	Intel
2012-09-17 19:26:33 +00:00
Jim Harris
bb0ec6b359 This is the first of several commits which will add NVM Express (NVMe)
support to FreeBSD.  A full description of the overall functionality
being added is below.  nvmexpress.org defines NVM Express as "an optimized
register interface, command set and feature set fo PCI Express (PCIe)-based
Solid-State Drives (SSDs)."

This commit adds nvme(4) and nvd(4) driver source code and Makefiles
to the tree.

Full NVMe functionality description:
Add nvme(4) and nvd(4) drivers and nvmecontrol(8) for NVM Express (NVMe)
device support.

There will continue to be ongoing work on NVM Express support, but there
is more than enough to allow for evaluation of pre-production NVM Express
devices as well as soliciting feedback.  Questions and feedback are welcome.

nvme(4) implements NVMe hardware abstraction and is a provider of NVMe
namespaces.  The closest equivalent of an NVMe namespace is a SCSI LUN.
nvd(4) is an NVMe consumer, surfacing NVMe namespaces as GEOM disks.
nvmecontrol(8) is used for NVMe configuration and management.

The following are currently supported:
nvme(4)
- full mandatory NVM command set support
- per-CPU IO queues (enabled by default but configurable)
- per-queue sysctls for statistics and full command/completion queue
     dumps for debugging
- registration API for NVMe namespace consumers
- I/O error handling (except for timeoutsee below)
- compilation switches for support back to stable-7

nvd(4)
- BIO_DELETE and BIO_FLUSH (if supported by controller)
- proper BIO_ORDERED handling

nvmecontrol(8)
- devlist: list NVMe controllers and their namespaces
- identify: display controller or namespace identify data in
      human-readable or hex format
- perftest: quick and dirty performance test to measure raw
      performance of NVMe device without userspace/physio/GEOM
      overhead

The following are still work in progress and will be completed over the
next 3-6 months in rough priority order:
- complete man pages
- firmware download and activation
- asynchronous error requests
- command timeout error handling
- controller resets
- nvmecontrol(8) log page retrieval

This has been primarily tested on amd64, with light testing on i386.  I
would be happy to provide assistance to anyone interested in porting
this to other architectures, but am not currently planning to do this
work myself.  Big-endian and dmamap sync for command/completion queues
are the main areas that would need to be addressed.

The nvme(4) driver currently has references to Chatham, which is an
Intel-developed prototype board which is not fully spec compliant.
These references will all be removed over time.

Sponsored by:        Intel
Contributions from:  Joe Golio/EMC <joseph dot golio at emc dot com>
2012-09-17 19:23:01 +00:00
Hans Petter Selasky
d7dd13419e Add UQ_UMS_IGNORE quirk.
Wrap two long lines.
Some minor spelling correction.

PR:	usb/171721
2012-09-17 19:06:35 +00:00
Hans Petter Selasky
e2524b2ec9 Implement support for USB Audio v2.0. Remove some redundant
USB audio v1.0 debug data, hence userspace tools like lsusb
exist to show this information properly.
2012-09-17 15:43:57 +00:00
John Baldwin
0fca6f8bf5 Add locking to mlx(4) to make it MPSAFE along with some other fixes:
- Use callout(9) rather than timeout(9).
- Add a mutex as an I/O lock that protects the adapter and is used
  for the I/O path.
- Add an sx lock as a configuration lock that protects the relationship
  of configured volumes.
- Freeze the request queue when a DMA load is deferred with EINPROGRESS
  and unfreeze the queue when the DMA callback is invoked.
- Explicitly poll the hardware while waiting to submit a command to
  allow completed commands to free up slots in the command ring.
- Remove driver-wide 'initted' variable from mlx_*_fw_handshake() routines.
  That state should be per-controller instead.  Add it as an argument
  since the first caller knows when it is the first caller.
- Remove explicit bus_space tag/handle and use bus_*() rather than
  bus_space_*().
- Move duplicated PCI device ID probing into a  mlx_pci_match() routine.
- Don't check for PCIM_CMD_MEMEN (the PCI bus will enable that when
  allocating the resource) and use pci_enable_busmaster() rather than
  manipulating the register directly.

Tested by:	no one despite multiple requests (hope it works)
2012-09-17 15:27:30 +00:00
Gavin Atkinson
058ede33bf - Add #defines for the bits within the iPCI Express PCIR_EXPRESS_LINK_CTL
register
- Add missing register PCIR_EXPRESS_ROOT_CAP
- Correct a spelling mistake (SLAT -> SLOT) [1]

Reviewed by:	jhb [1]
2012-09-17 12:51:48 +00:00
Kevin Lo
4e4eb12038 Remove unused variable cd.
This variable is initialized but not used.
2012-09-17 09:32:11 +00:00
Andrew Turner
71f5a44d88 Add a kernel config for the Toshiba AC100. The AC100 is an ARM laptop with
an NVidia Tegra 2 CPU.

Tegra 2 needs an external patch to pmap for atomic operations to work. Even
with this the Kernel only gets to the mount root prompt. As such Tegra
support is considered experimental, however adding the kernel config will
help ensure the Tegra code builds.
2012-09-17 09:22:59 +00:00
Andrew Turner
a7dc3573ca Add the Tegra2 DTS files. Now our dtc supports including other files use
this support to pull out the SoC specific parts of the dts file.
2012-09-17 07:14:07 +00:00
Adrian Chadd
c6e9cee205 Take credit for the work I've done in this source file. 2012-09-17 03:17:42 +00:00
Matt Jacob
6f7aeb5fe3 Minor correction.
MFC after:	1 day
2012-09-17 02:50:16 +00:00
Matt Jacob
8b382bc2b5 Add some edits to the changed comments so that they make more sense.
MFC after:	1 day
2012-09-17 02:49:02 +00:00
Adrian Chadd
de8e4d6436 Add a per-TID filter queue and filter state bits.
These are intended for software TX filtering support, where the NIC
decides there has been too many successive failues to a destination
and will filter it.

Although the filtering is done per-destination (via the keycache),
the state and queue is kept per-TID for now.  It simplifies the overall
architecture design and locking.

Whilst here, add ATH_TID_UNLOCK_ASSERT().
2012-09-17 01:21:55 +00:00
Adrian Chadd
355cae39e9 Add a debug bit for TX destination filtering. 2012-09-17 01:18:47 +00:00
Adrian Chadd
e69db8df7d Improve performance of the Sample rate algorithm on 802.11n networks.
* Don't treat high percentage failures as "sucessive failures" - high
  MCS rates are very picky and will quite happily "fade" from low
  to high failure % and back again within a few seconds.  If they really
  don't work, the aggregate will just plain fail.

* Only sample MCS rates +/- 3 from the current MCS.  Sample will back off
  quite quickly, so there's no need to sample _all_ MCS rates between
  a high MCS rate and MCS0; there may be a lot of them.

* Modify the smoothing rate to be 75% rather than 95% - it's more adaptive
  but it comes with a cost of being slightly less stable at times.
  A per-node, hysterisis behaviour would be nicer.
2012-09-17 01:09:17 +00:00
Adrian Chadd
7b5a343596 Fix a crash bug introduced in the iterate node work recently done.
When resuming, the first VAP is checked for max_aid; however if there
is no VAP, this results in a NULL pointer dereference and kernel
panic.
2012-09-16 22:45:00 +00:00
John-Mark Gurney
3dad5721a6 fix the kernel files to match our standard "option<space><tab>" format
such that when commenting/uncommentting lines, horizontal spacing is
maintained...

Also fix some minor comment formatting to line things up, etc...

Reviewed by:	gnn, imp
MFC after:	1 week
2012-09-16 19:48:48 +00:00
John-Mark Gurney
2b539bdcb3 remove some unnecessary debugging statements, dead code and incorrect
comment...

Reviewed by:	gnn, imp
2012-09-16 19:42:27 +00:00
Andrew Turner
4f06dcbd80 Start to clean up ARMv6 initarm implementations by making the Tegra 2
version similar to the Ti version.
2012-09-16 08:09:10 +00:00
Andrew Turner
7b0aff3920 In the Tegra 2 standard config:
* Remove an unneeded makeoption
 * Set machine correctly
 * Properly indent the include of files.tegra2
2012-09-16 08:00:29 +00:00
Andrew Turner
5be63cab1c The cpu_reset function is noreturn, make sure this is true on Tegra 2.
While here fix a typo.
2012-09-16 07:55:49 +00:00
Rui Paulo
878a25dbbf Add Perforce support. 2012-09-16 06:01:34 +00:00
Ed Schouten
7cbef24e1a Prefer __containerof() above member2struct().
The first does proper checking of the argument types, while the latter
does not.
2012-09-15 19:28:54 +00:00
Alan Cox
1913678b8d Eliminate an unused malloc type. 2012-09-15 17:32:19 +00:00
Eitan Adler
0af1b47258 s/ is is / is /g
s/ a a / a /g

Approved by:	cperciva
MFC after:	3 days
2012-09-14 22:00:03 +00:00
Eitan Adler
582212fa04 s/teh/the/g
Approved by:	cperciva
MFC after:	3 days
2012-09-14 21:59:55 +00:00
Eitan Adler
96240c89f0 Correct double "the the"
Approved by:	cperciva
MFC after:	3 days
2012-09-14 21:28:56 +00:00
Jim Harris
cc31866200 isci(4): Fix SCSI/ATA translation for SCSI_WRITE_BUFFER w/ mode==0x7
(download microcode with offsets, save, and activate).

SATI translation layer was incorrectly using allocation length instead
of blocks, and was constructing the ATA command incorrectly.

Also change #define to specify that the 512 block size here is
specific for DOWNLOAD_MICROCODE, and does not relate to the device's
logical block size.

Submitted by: scottl (with small modifications)
MFC after: 3 days
2012-09-14 20:05:38 +00:00
Andriy Gapon
e87fc7cf7b sched_ule: fix inverted condition in reporting of priority lending via ktr
Reviewed by:	kan
MFC after:	1 week
2012-09-14 19:55:28 +00:00
Michael Tuexen
dcb68fba2d Small cleanups. No functional change.
MFC after:	10 days
2012-09-14 18:32:20 +00:00
Gleb Smirnoff
3b3a8eb937 o Create directory sys/netpfil, where all packet filters should
reside, and move there ipfw(4) and pf(4).

o Move most modified parts of pf out of contrib.

Actual movements:

sys/contrib/pf/net/*.c		-> sys/netpfil/pf/
sys/contrib/pf/net/*.h		-> sys/net/
contrib/pf/pfctl/*.c		-> sbin/pfctl
contrib/pf/pfctl/*.h		-> sbin/pfctl
contrib/pf/pfctl/pfctl.8	-> sbin/pfctl
contrib/pf/pfctl/*.4		-> share/man/man4
contrib/pf/pfctl/*.5		-> share/man/man5

sys/netinet/ipfw		-> sys/netpfil/ipfw

The arguable movement is pf/net/*.h -> sys/net. There are
future plans to refactor pf includes, so I decided not to
break things twice.

Not modified bits of pf left in contrib: authpf, ftp-proxy,
tftp-proxy, pflogd.

The ipfw(4) movement is planned to be merged to stable/9,
to make head and stable match.

Discussed with:		bz, luigi
2012-09-14 11:51:49 +00:00
Grzegorz Bernacki
64dc1cf395 Implement MSI support.
MSI are implemented via Inbound Shared Doorbell 1 interrupts. Interrupts
are triggered by writing to Software Triggered Interrupt registeri (PCIe
card using physical address of this register in BAR0 space). There are 32
interrupts available. It can be increased by using Doorbell 2 and
Doorbell 3 registers to 96 interrupts.

Obtained from:	Marvell, Semihalf
2012-09-14 10:06:56 +00:00
Grzegorz Bernacki
aa0ea9d07a Add support for MSI in interrupt controlller.
MSI are implemented via software interrupt. PCIe cards will write
into software interrupt register which will cause inbound shared
interrupt which will be interpreted as a MSI.

Obtained from:	Marvell, Semihalf
2012-09-14 10:05:01 +00:00
Grzegorz Bernacki
373bc54ab1 Remove unused structure fields
Obtained from:	Semihalf
2012-09-14 10:01:52 +00:00
Grzegorz Bernacki
4c641b9a6a Enable PCI for Armada XP
Obtained from:	Semihalf
2012-09-14 09:59:27 +00:00
Grzegorz Bernacki
e3ac97538c pci: Implement new memory and io space allocator for PCI.
Cleanup code and move initializing bridge into separate function.
Add checking of PCI mode (RC or endpoint).

Obtained from:	Semihalf
2012-09-14 09:57:41 +00:00
Grzegorz Bernacki
d65cdf4b9d Add support for Armada XP A0.
- Add functions to calculate clocks instead using hardcoded values
- Update reset and timers functions
- Update number of interrupts
- Change name of platform from db88f78100 to db78460
- Correct DRAM size and PCI IRQ routing in dts file.

Obtained from:	Semihalf
2012-09-14 09:55:19 +00:00
Grzegorz Bernacki
68b7bd0469 If virtual addresses are not set use one to one mapping.
Do not map memory and IO space at address 0.

Obtained from: Semihalf
2012-09-14 09:45:13 +00:00
Grzegorz Bernacki
f3d01034bc Support identification of new PJ4B cores.
Obtained from:	Semihalf
2012-09-14 09:38:54 +00:00
Grzegorz Bernacki
2c99056488 Add fdt_get_unit() function.
Obtained from:	Semihalf
2012-09-14 09:36:35 +00:00
Grzegorz Bernacki
2f0da24b47 Set busaddr and bussize to 0 when fdt_get_range() fails.
Obtained from:	Semihalf
2012-09-14 09:33:35 +00:00
Hans Petter Selasky
db18ca3677 Add basic USB support to Raspberry PI target. 2012-09-14 08:11:59 +00:00
Hans Petter Selasky
b792f659e3 DWC OTG improvements. Implement full support for SPLIT transactions, in other
words FULL/LOW speed devices through HIGH speed HUBs. Improve support for
suspend and resume in host mode.
2012-09-14 07:52:57 +00:00
Tim Kientzle
181abccb96 The MBR data is not necessarily aligned. This is a problem on ARM. 2012-09-14 05:24:06 +00:00
Attilio Rao
0a15e5d30d Remove all the checks on curthread != NULL with the exception of some MD
trap checks (eg. printtrap()).

Generally this check is not needed anymore, as there is not a legitimate
case where curthread != NULL, after pcpu 0 area has been properly
initialized.

Reviewed by:	bde, jhb
MFC after:	1 week
2012-09-13 22:26:22 +00:00
John Baldwin
2cfd0c4638 - Add some registers defined in PCI 3.0 including new AER bits.
- Add constants for the rest of the fields in the PCI-express device
  capability and control registers.
- Tweak some of the recently added PCI-e capability constants (always
  use hex for offsets in config space, and include a shortened
  version of the relevant register in the name of field constants).

MFC after:	1 week
2012-09-13 19:05:24 +00:00