Commit Graph

84819 Commits

Author SHA1 Message Date
Oleksandr Tymoshenko
234f7fd5a3 - Do not enumerate PCIe bus on CN56XX Pass 1 devices to avoid hard hang.
There is known issue with this hardware.

Submitted by:	Andrew Duane <aduane@juniper.net>
2012-01-13 02:33:55 +00:00
Justin Hibbits
82b6bd7d0e Add PWM monitoring sysctl to G4 MDD (Windtunnel) fan driver. While there, clean
up some style nits.

Approved by:	nwhitehorn (mentor)
MFC after:	3 days
2012-01-12 22:21:20 +00:00
Kenneth D. Merry
b87c6ae04b Silence some unnecessary verbosity.
Reported by:	mav
MFC after:	1 month
2012-01-12 22:08:33 +00:00
Hans Petter Selasky
4131f6fb60 - Try to fix support for USB 3.0 HUBs.
- Try to fix support for USB 3.0 suspend and resume.

MFC after:	1 week
2012-01-12 21:21:20 +00:00
Robert Watson
7983103ae6 Clarify throughout the vlan(4) code the difference between a "tag" (the
802.1q-defined 16-bit VID, CFI, and PCP field in host by order) and a
VLAN ID (VID).  Tags go in packets.  VIDs identify VLANs.

No functional change is intended, so this should be safe to MFC.  Further
cleanup with functional changes will be committed separately (for example,
renaming vlan_tag/vlan_tag_p, which modify the KPI and KBI).

Reviewed by:	bz
Sponsored by:	ADARA Networks, Inc.
MFC after:	3 days
2012-01-12 18:39:37 +00:00
Luigi Rizzo
ce9f43b467 clear the pointer after freeing the mbuf. Without that, we
risk a double free if the subsequent mbuf allocation fails.
This bug is not netmap-related and was introduced in  rev. 228387
2012-01-12 17:30:44 +00:00
Luigi Rizzo
467bd5c2cb fix the initialization of the rings when netmap is used,
to adapt it to the changes in  228387 .
Now the code is similar to the one used in other drivers.
Not applicable to stable/9 and stable/8
2012-01-12 17:28:00 +00:00
Kenneth D. Merry
8900f4b872 Fix a race condition in CAM peripheral free handling, locking
in the CAM XPT bus traversal code, and a number of other periph level
issues.

cam_periph.h,
cam_periph.c:	Modify cam_periph_acquire() to test the CAM_PERIPH_INVALID
		flag prior to allowing a reference count to be gained
		on a peripheral.  Callers of this function will receive
		CAM_REQ_CMP_ERR status in the situation of attempting to
		reference an invalidated periph.  This guarantees that
		a peripheral scheduled for a deferred free will not
		be accessed during its wait for destruction.

		Panic during attempts to drop a reference count on
		a peripheral that already has a zero reference count.

		In cam_periph_list(), use a local sbuf with SBUF_FIXEDLEN
		set so that mallocs do not occur while the xpt topology
		lock is held, regardless of the allocation policy of the
		passed in sbuf.

		Add a new routine, cam_periph_release_locked_buses(),
		that can be called when the caller already holds
		the CAM topology lock.

		Add some extra debugging for duplicate peripheral
		allocations in cam_periph_alloc().

		Treat CAM_DEV_NOT_THERE much the same as a selection
		timeout (AC_LOST_DEVICE is emitted), but forgo retries.

cam_xpt.c:      Revamp the way the EDT traversal code does locking
		and reference counting.  This was broken, since it
		assumed that the EDT would not change during
		traversal, but that assumption is no longer valid.

		So, to prevent devices from going away while we
		traverse the EDT, make sure we properly lock
		everything and hold references on devices that
		we are using.

		The two peripheral driver traversal routines should
		be examined.  xptpdperiphtraverse() holds the
		topology lock for the entire time it runs.
		xptperiphtraverse() is now locked properly, but
		only holds the topology lock while it is traversing
		the list, and not while the traversal function is
		running.

		The bus locking code in xptbustraverse() should
		also be revisited at a later time, since it is
		complex and should probably be simplified.

scsi_da.c:	Pay attention to the return value from cam_periph_acquire().

		Return 0 always from daclose() even if the disk is now gone.

		Add some rudimentary error injection support.

scsi_sg.c:	Fix reference counting in the sg(4) driver.

		The sg driver was calling cam_periph_release() on close,
		but never called cam_periph_acquire() (which increments
		the reference count) on open.

		The periph code correctly complained that the sg(4)
		driver was trying to decrement the refcount when it
		was already 0.

Sponsored by:	Spectra Logic
MFC after:	2 weeks
2012-01-12 00:41:48 +00:00
Kenneth D. Merry
130f4520cb Add the CAM Target Layer (CTL).
CTL is a disk and processor device emulation subsystem originally written
for Copan Systems under Linux starting in 2003.  It has been shipping in
Copan (now SGI) products since 2005.

It was ported to FreeBSD in 2008, and thanks to an agreement between SGI
(who acquired Copan's assets in 2010) and Spectra Logic in 2010, CTL is
available under a BSD-style license.  The intent behind the agreement was
that Spectra would work to get CTL into the FreeBSD tree.

Some CTL features:

 - Disk and processor device emulation.
 - Tagged queueing
 - SCSI task attribute support (ordered, head of queue, simple tags)
 - SCSI implicit command ordering support.  (e.g. if a read follows a mode
   select, the read will be blocked until the mode select completes.)
 - Full task management support (abort, LUN reset, target reset, etc.)
 - Support for multiple ports
 - Support for multiple simultaneous initiators
 - Support for multiple simultaneous backing stores
 - Persistent reservation support
 - Mode sense/select support
 - Error injection support
 - High Availability support (1)
 - All I/O handled in-kernel, no userland context switch overhead.

(1) HA Support is just an API stub, and needs much more to be fully
    functional.

ctl.c:			The core of CTL.  Command handlers and processing,
			character driver, and HA support are here.

ctl.h:			Basic function declarations and data structures.

ctl_backend.c,
ctl_backend.h:		The basic CTL backend API.

ctl_backend_block.c,
ctl_backend_block.h:	The block and file backend.  This allows for using
			a disk or a file as the backing store for a LUN.
			Multiple threads are started to do I/O to the
			backing device, primarily because the VFS API
			requires that to get any concurrency.

ctl_backend_ramdisk.c:	A "fake" ramdisk backend.  It only allocates a
			small amount of memory to act as a source and sink
			for reads and writes from an initiator.  Therefore
			it cannot be used for any real data, but it can be
			used to test for throughput.  It can also be used
			to test initiators' support for extremely large LUNs.

ctl_cmd_table.c:	This is a table with all 256 possible SCSI opcodes,
			and command handler functions defined for supported
			opcodes.

ctl_debug.h:		Debugging support.

ctl_error.c,
ctl_error.h:		CTL-specific wrappers around the CAM sense building
			functions.

ctl_frontend.c,
ctl_frontend.h:		These files define the basic CTL frontend port API.

ctl_frontend_cam_sim.c:	This is a CTL frontend port that is also a CAM SIM.
			This frontend allows for using CTL without any
			target-capable hardware.  So any LUNs you create in
			CTL are visible in CAM via this port.

ctl_frontend_internal.c,
ctl_frontend_internal.h:
			This is a frontend port written for Copan to do
			some system-specific tasks that required sending
			commands into CTL from inside the kernel.  This
			isn't entirely relevant to FreeBSD in general,
			but can perhaps be repurposed.

ctl_ha.h:		This is a stubbed-out High Availability API.  Much
			more is needed for full HA support.  See the
			comments in the header and the description of what
			is needed in the README.ctl.txt file for more
			details.

ctl_io.h:		This defines most of the core CTL I/O structures.
			union ctl_io is conceptually very similar to CAM's
			union ccb.

ctl_ioctl.h:		This defines all ioctls available through the CTL
			character device, and the data structures needed
			for those ioctls.

ctl_mem_pool.c,
ctl_mem_pool.h:		Generic memory pool implementation used by the
			internal frontend.

ctl_private.h:		Private data structres (e.g. CTL softc) and
			function prototypes.  This also includes the SCSI
			vendor and product names used by CTL.

ctl_scsi_all.c,
ctl_scsi_all.h:		CTL wrappers around CAM sense printing functions.

ctl_ser_table.c:	Command serialization table.  This defines what
			happens when one type of command is followed by
			another type of command.

ctl_util.c,
ctl_util.h:		CTL utility functions, primarily designed to be
			used from userland.  See ctladm for the primary
			consumer of these functions.  These include CDB
			building functions.

scsi_ctl.c:		CAM target peripheral driver and CTL frontend port.
			This is the path into CTL for commands from
			target-capable hardware/SIMs.

README.ctl.txt:		CTL code features, roadmap, to-do list.

usr.sbin/Makefile:	Add ctladm.

ctladm/Makefile,
ctladm/ctladm.8,
ctladm/ctladm.c,
ctladm/ctladm.h,
ctladm/util.c:		ctladm(8) is the CTL management utility.
			It fills a role similar to camcontrol(8).
			It allow configuring LUNs, issuing commands,
			injecting errors and various other control
			functions.

usr.bin/Makefile:	Add ctlstat.

ctlstat/Makefile
ctlstat/ctlstat.8,
ctlstat/ctlstat.c:	ctlstat(8) fills a role similar to iostat(8).
			It reports I/O statistics for CTL.

sys/conf/files:		Add CTL files.

sys/conf/NOTES:		Add device ctl.

sys/cam/scsi_all.h:	To conform to more recent specs, the inquiry CDB
			length field is now 2 bytes long.

			Add several mode page definitions for CTL.

sys/cam/scsi_all.c:	Handle the new 2 byte inquiry length.

sys/dev/ciss/ciss.c,
sys/dev/ata/atapi-cam.c,
sys/cam/scsi/scsi_targ_bh.c,
scsi_target/scsi_cmds.c,
mlxcontrol/interface.c:	Update for 2 byte inquiry length field.

scsi_da.h:		Add versions of the format and rigid disk pages
			that are in a more reasonable format for CTL.

amd64/conf/GENERIC,
i386/conf/GENERIC,
ia64/conf/GENERIC,
sparc64/conf/GENERIC:	Add device ctl.

i386/conf/PAE:		The CTL frontend SIM at least does not compile
			cleanly on PAE.

Sponsored by:	Copan Systems, SGI and Spectra Logic
MFC after:	1 month
2012-01-12 00:34:33 +00:00
Jung-uk Kim
ec3fc72f94 Merge ACPICA 20120111. 2012-01-11 23:06:37 +00:00
Don Lewis
930a96e4fa Pass the arguments to mtx_init() in the correct order. There should be
no change to the binary because the value of MTX_DEF is zero and there
is a visible function prototype.

MFC after:	1 week
2012-01-11 21:38:05 +00:00
Pedro F. Giffuni
70e0bbedef Replace GPL'd headers in the emu10kx snd driver code.
This uses the emuxkireg.h already used in the emu10k1
snd driver. Special thanks go to Alexander Motin as
he was able to find some errors and reverse engineer
some wrong values in the emuxkireg header.

The emu10kx driver is now free from the GPL.

PR:		153901
Tested by:	mav, joel
Approved by:	jhb (mentor)
MFC after:	2 weeks
2012-01-11 21:17:14 +00:00
Pedro F. Giffuni
7523592f91 Fix an inconsistency that crept in while replacing constants
from the new header.

Approved by:	jhb (mentor)
MFC after:	3 days
2012-01-11 21:03:54 +00:00
Gleb Smirnoff
b4f66a1781 Redo r226660:
- Define schednetisr() to swi_sched.
 - In the swi handler check if there is some data prepared,
   and if true, then call pfsync_sendout(), however tell it
   not to schedule swi again.
 - Since now we don't obtain the pfsync lock in the swi handler,
   don't use ifqueue mutex to synchronize queue access.
2012-01-11 18:34:57 +00:00
Konstantin Belousov
f5793e6f84 Add PCI Id for the AMT SOL UART on 5 series Intel chipsets.
MFC after:	1 week
2012-01-11 17:46:08 +00:00
Adrian Chadd
04d1980289 Introduce wtap, the beginnings of a net80211 wlan simulator.
This introduces:

* a basic wtap interface
* a HAL, which implements an abstraction layer for implementing
  different device behavious;
* A visibility plugin, which allows for control over which nodes
  see other nodes (useful for mesh work.)

It doesn't yet implement sta/adhoc/hostap modes but these are quite
feasible to implement.

Monthadar uses it to do 802.11s mesh verification.

The userland tools will be committed in a follow-up commit.

Submitted by:	Monthadar Al Jaberi <monthadar@gmail.com>
2012-01-11 17:41:14 +00:00
Adrian Chadd
136cb2223f Add the ability to kick an existing mesh node without waiting for it
to time out.

Submitted by:	Monthadar Al Jaberi <monthadar@gmail.com>
2012-01-11 17:10:27 +00:00
Nathan Whitehorn
f5d125c53d Add a memory barrier to bus_dmamap_sync(), as should have always been
present. We need a sync instead of eieio, as eieio does not enforce storage
ordering between main and device memory.
2012-01-11 16:53:51 +00:00
George V. Neville-Neil
844d43d94b Fix for PR 138526.
Add the ability for /dev/null and /dev/zero to accept
being set into non blocking mode via fcntl().  This
brings the code into compliance with IEEE Std 1003.1-2001
as referenced in another PR, 94729.

Reviewed by:	jhb
MFC after:	1 week
2012-01-11 15:00:16 +00:00
Gleb Smirnoff
122d395f85 Fix some spacing in code under __FreeBSD__. 2012-01-11 14:24:03 +00:00
Gleb Smirnoff
c4f01d2d34 Add necessary locking in pfsync_in_ureq(). 2012-01-11 14:19:04 +00:00
Gleb Smirnoff
0744a28a79 Move PF_LOCK_ASSERT() under __FreeBSD__. 2012-01-11 14:13:42 +00:00
Gleb Smirnoff
3488c2786e Merge from OpenBSD:
revision 1.128
  date: 2009/08/16 13:01:57;  author: jsg;  state: Exp;  lines: +1 -5
  remove prototypes of a bunch of functions that had their implementations
  removed in pfsync v5.
2012-01-11 14:11:10 +00:00
Gleb Smirnoff
686cb93667 When running with INVARIANTS the mutex(9) code does all necessary
asserts for non-recursive mutexes.
2012-01-11 13:57:48 +00:00
Rick Macklem
a16cd9c05e jwd@ reported via email that the "CacheSize" field reported by "nfsstat -e -s"
would go negative after using the "-z" option to zero out the stats.
This patch fixes that by not zeroing out the srvcache_size field
for "-z", since it is the size of the cache and not a counter.

MFC after:	2 weeks
2012-01-11 02:46:42 +00:00
Adrian Chadd
d8f609a98e Add the MCS radiotype entry. 2012-01-11 01:09:08 +00:00
Adrian Chadd
fad901eb2b Re-enable the PHY radar error frames if sc_dodfs is set.
This was messing up a local port of the atheros reference radar detection
code; I'll fix the port instead.
2012-01-11 00:18:33 +00:00
Adrian Chadd
d4365d165b style(9) changes. This shouldn't change functionality. 2012-01-11 00:16:44 +00:00
Adrian Chadd
504f7cf5bb Add in the vendor extension bit in the radiotap header. 2012-01-10 23:37:32 +00:00
Luigi Rizzo
446ee30192 other simplifications in the internal interfaces to the
memory allocator.
2012-01-10 23:02:01 +00:00
Pyun YongHyeon
0b69904450 style. No functional changes. 2012-01-10 20:52:02 +00:00
Luigi Rizzo
6e10c8b8c5 small code cleanup in preparation for future modifications in
the memory allocator used by netmap. No functional change,
two small bug fixes:
- in if_re.c add a missing bus_dmamap_sync()
- in netmap.c comment out a spurious free() in an error handling block
2012-01-10 19:57:23 +00:00
Konstantin Belousov
5dda2db9c8 Change the type of the paging_in_progress refcounter from u_short to
u_int. With the auto-sized buffer cache on the modern machines, UFS
metadata can generate more the 65535 pages belonging to the buffers
undergoing i/o, overflowing the counter.

Reported and tested by:	jimharris
Reviewed by:	alc
MFC after:	1 week
2012-01-10 18:05:44 +00:00
Lawrence Stewart
9a7e6bac47 Consumers of bpfdetach() expect it to remove all bpf_if structs from the
bpf_iflist list which reference the specified ifnet. The existing implementation
only removes the first matching bpf_if found in the list, effectively leaking
list entries if an ifnet has been bpfattach()ed multiple times with different
DLTs.

Fix the leak by performing the detach logic in a loop, stopping when all bpf_if
structs referencing the specified ifnet have been detached and removed from the
bpf_iflist list.

Whilst here, also:

- Remove the unnecessary "bp->bif_ifp == NULL" check, as a bpf_if should never
  exist in the list with a NULL ifnet pointer.

- Except when INVARIANTS is in the kernel config, silently ignore the case where
  no bpf_if referencing the specified ifnet is found, as it is harmless and does
  not require user attention.

Reviewed by:	csjp
MFC after:	1 week
2012-01-10 00:48:29 +00:00
Jung-uk Kim
ee5f87f458 Enable hardware RNG for VIA Nano processors.
PR:		kern/163974
2012-01-09 23:20:30 +00:00
Jim Harris
c1ad3fcf6a Add support for >2TB disks in GEOM RAID for Intel metadata format.
Reviewed by: mav
Approved by: scottl
MFC after: 1 week
2012-01-09 23:01:42 +00:00
Sergey Kandaurov
6791e4f442 Get rid of a spurious warning on the console when booting the kernel
from the interactive loader(8) prompt and beastie_disable="YES" is set
in loader.conf(5). In this case menu.rc is not evaluated and consequently
menu-unset does not have a body yet. This results in the ficl warning
"menu-unset not found" when try-menu-unset invokes menu-unset.

Check for beastie_disable="YES" explicitly, so that the try-menu-unset
word will not attempt to invoke menu-unset because the menu will have
never been configured. [1]
Use the sfind primitive as a last resort as an additional safer approach
conjuring a foreign word safely. [2]

PR:		kern/163938
Submitted by:	Devin Teske [1]
Reviewed by:	Devin Teske [2]
Reported and tested by:	dim
MFC after:	1 week
X-MFC with:	r228985
2012-01-09 20:25:14 +00:00
John Baldwin
fbcebf7f71 Convert the per-interface address list lock from a mutex to a reader/writer
lock.

Reviewed by:	bz
2012-01-09 19:34:12 +00:00
Gleb Smirnoff
1d89f286c4 Can't pass MSIZE to m_cljget(), an mbuf can't be attached as external storage
to another mbuf.
2012-01-09 14:35:05 +00:00
Andriy Gapon
90d8265326 enable stop_scheduler_on_panic by default
My plan is to make this behavior unconditional before 10.0 release.

X-MFC after:	r228424 (if ever)
2012-01-09 12:06:09 +00:00
Gleb Smirnoff
317ebc3d0d Backout of backout: we need SI_SUB_PROTO_DOMAIN for pfsync, since
it needs existing inetdomain on startup.
2012-01-09 12:06:02 +00:00
Gleb Smirnoff
101881ef42 Revert sub argument of MODULE_DECLARE back to r226532.
Noticed by:	bz
2012-01-09 09:19:00 +00:00
Gleb Smirnoff
151ceaa22c In FreeBSD we determine presence of pfsync(4) at run-time, not
at compile time, so define NPFSYNC to 1 always. While here, remove
unused defines.
2012-01-09 08:55:23 +00:00
Gleb Smirnoff
5c39f7bdeb Bunch of fixes to pfsync(4) module load/unload:
o Make the pfsync.ko actually usable. Before this change loading it
  didn't register protosw, so was a nop. However, a module /boot/kernel
  did confused users.
o Rewrite the way we are joining multicast group:
  - Move multicast initialization/destruction to separate functions.
  - Don't allocate memory if we aren't going to join a multicast group.
  - Use modern API for joining/leaving multicast group.
  - Now the utterly wrong pfsync_ifdetach() isn't needed.
o Move module initialization from SYSINIT(9) to moduledata_t method.
o Refuse to unload module, unless asked forcibly.
o Improve a bit some FreeBSD porting code:
  - Use separate malloc type.
  - Simplify swi sheduling.

This change is probably wrong from VIMAGE viewpoint, however pfsync
wasn't VIMAGE-correct before this change, too.

Glanced at by:	bz
2012-01-09 08:50:22 +00:00
Gleb Smirnoff
98a38f5b1d o Fix panic on module unload, that happened due to mutex being
destroyed prior to pfsync_uninit(). To do this, move all the
  initialization to the module_t method, instead of SYSINIT(9).
o Fix another panic after module unload, due to not clearing the
  m_addr_chg_pf_p pointer.
o Refuse to unload module, unless being unloaded forcibly.
o Revert the sub argument to MODULE_DECLARE, to the stable/8 value.

This change probably isn't correct from viewpoint of VIMAGE, but
the module wasn't VIMAGE-correct before the change, as well.

Glanced at by:	bz
2012-01-09 08:36:12 +00:00
Konstantin Belousov
3ab0160340 Avoid LOR between vfs_busy() lock and covered vnode lock on quotaon().
The vfs_busy() is after covered vnode lock in the global lock order, but
since quotaon() does recursive VFS call to open quota file, we usually
end up locking covered vnode after mp is busied in sys_quotactl().

Change the interface of VFS_QUOTACTL(), requiring that mp was unbusied
by fs code, and do not try to pick up vfs_busy() reference in ufs quotaon,
esp. if vfs_busy cannot succeed due to unmount being performed.

Reported and tested by:	pho
MFC after:	1 week
2012-01-08 23:06:53 +00:00
Alan Cox
2971897d51 Correct an error of omission in the implementation of the truncation
operation on POSIX shared memory objects and tmpfs.  Previously, neither of
these modules correctly handled the case in which the new size of the object
or file was not a multiple of the page size.  Specifically, they did not
handle partial page truncation of data stored on swap.  As a result, stale
data might later be returned to an application.

Interestingly, a data inconsistency was less likely to occur under tmpfs
than POSIX shared memory objects.  The reason being that a different mistake
by the tmpfs truncation operation helped avoid a data inconsistency.  If the
data was still resident in memory in a PG_CACHED page, then the tmpfs
truncation operation would reactivate that page, zero the truncated portion,
and leave the page pinned in memory.  More precisely, the benevolent error
was that the truncation operation didn't add the reactivated page to any of
the paging queues, effectively pinning the page.  This page would remain
pinned until the file was destroyed or the page was read or written.  With
this change, the page is now added to the inactive queue.

Discussed with:	jhb
Reviewed by:	kib (an earlier version)
MFC after:	3 weeks
2012-01-08 20:09:26 +00:00
Hiroki Sato
ca54e1aee3 Fix a typo. (s/nessesary/necessary/) 2012-01-08 18:48:36 +00:00
Gleb Smirnoff
aa24ae3c5e Make it possible to use alternative source hardware address
in the ARP datagram generated by arprequest(). If caller doesn't
supply the address, then it is either picked from CARP or hardware
address of the interface is taken.

While here, make several minor fixes:

- Hold IF_ADDR_RLOCK(ifp) while traversing address list.
- Remove not true comment.
- Access internet address and mask via in_ifaddr fields,
  rather than ifaddr.
2012-01-08 17:25:15 +00:00
Gleb Smirnoff
d294536082 Provide IA_MASKSIN() macro similar to IA_SIN() and IA_DSTSIN(). 2012-01-08 17:20:29 +00:00