Commit Graph

107067 Commits

Author SHA1 Message Date
Andrew Rybchenko
48ec66b35f sfxge: cleanup: fix prefast annotation
Submitted by:   Andy Moreton <amoreton at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
2015-11-27 15:58:52 +00:00
Andrew Rybchenko
3519e25d23 sfxge: do not use unnamed union in siena_mc_combo_rom_hdr_t
GCC 4.2.1 used on FreeBSD 8 and 9 branches does not like unnamed
union member in the structure. It is not strictly required in head,
but nice to have to minimize difference with out-of-tree driver.

Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
2015-11-27 15:54:36 +00:00
Andrew Rybchenko
f765dcf98c sfxge: cleanup: error probe correction
Submitted by:   Richard Houldsworth <rhouldsworth at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
2015-11-27 15:50:17 +00:00
Alexander Motin
2d80af4f4a Fix panic when trying to sort unsupported command in OOA queue.
Handle unsupported commands as not conflicting/blocking.
2015-11-27 14:29:04 +00:00
Konstantin Belousov
f186a80d8a Remove VI_AGE vnode iflag, it is unused.
Noted by:	bde
Sponsored by:	The FreeBSD Foundation
2015-11-27 01:45:40 +00:00
Konstantin Belousov
b3162b45e1 Move the comment about resident pages preventing vnode from leaving
active list, into the header comment for vdrop(), which is the
function that decides whether to leave the vnode on the list.  Note
that dirty page write-out in vinactive() is asynchronous.

Discussed with:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-11-27 01:16:35 +00:00
Michael Tuexen
f0067f2251 When the sending of an SCTP outgoing stream reset request fails,
don't report it to the user since all stream have been marked
as pending.

MFC after:	1 week
2015-11-26 23:12:41 +00:00
Ed Maste
2e0002c18e Fix whitespace on addition of IPSEC option 2015-11-26 21:35:50 +00:00
Ed Maste
20e0b5fcce Correct arm64 gic_v3 sizeof argument
No functional change as 'struct resource *' and 'struct resource **'
have the same size, but the former is the proper type.

PR:		204768
Submitted by:	David Binderman
2015-11-26 21:05:55 +00:00
Alan Cox
67b7e4345e Correct an error in vm_reserv_reclaim_contig(). In the highly unusual
case that the reservation contained "low", the starting position in the
popmap for the free page search was incorrectly calculated.  The most
likely (and visible) symptom of this error was the assertion failure,
"vm_reserv_reclaim_contig: pa is too low".
2015-11-26 19:12:18 +00:00
Alexander Motin
e096498a0c Remove residual functions declaration left after r291365. 2015-11-26 18:56:21 +00:00
Ian Lepore
bd6b2f9bef Rename sysctl node hw.imx6 to hw.imx. Move its definition to imx_machdep.c
so that code shared between imx5 and imx6 can work with OIDs under that node.

Add last_reset_status (integer) and last_reset_reason (string) OIDs that
provide info about the last chip reset (power-on, software reset, watchdog
timeout).
2015-11-26 17:26:52 +00:00
Alexander Motin
e561aa79fb One more round of port scanner rewrite.
- Make scan aborted by event restart immediately and infinitely.
 - Improve handling of some loop events from firmware.
 - Remove loop down timer, adding its functionality to scanner thread.
 - Some more unification and simplification.
2015-11-26 13:04:58 +00:00
Michael Tuexen
52f175be70 When receiving an SCTP/UDP packet and the interface performed
the UDP checksum computation and signals that it was OK,
clear this bit when passing the packet to SCTP. Since the
bits indicating a valid UDP checksum and a valid SCTP
checksum are the same, the SCTP stack would assume
that also an SCTP checksum check has been performed.

MFC after: 1 week
2015-11-26 09:25:20 +00:00
Adrian Chadd
913565851c [net80211] decode WPA cipher config '0' as "clear cipher config".
wpa_supplicant actually calls the wpa ioctl with cipher 0 as part
of the teardown process and this returns an ioctl error.

It's required as part of the (hopefully!) upcoming encrypted
IBSS support which does indeed do the above as part of interface
setup and then exits ungracefully when it gets an ioctl error.

(I'll fix wpa_supplicant in a later commit as part of other work.)
2015-11-26 01:54:58 +00:00
Enji Cooper
766b4e4b5c Fix building sys/modules/if_enc by adding missing headers
X-MFC with: r291292, r291299 (if that ever happens)
Pointyhat to: ae
2015-11-25 21:16:10 +00:00
Bryan Drewery
b791fbe630 META MODE: Don't create .meta files when symlinking sources into the obj directory.
Tracking these leads to situations where meta mode will consider the
file to be out of date if /bin/sh or /bin/ln are newer than the source
file.  There's no reason for meta mode to do this as make is already
handling the rebuild dependency fine.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:44:43 +00:00
Bryan Drewery
8e8319a68d Stop building vers.c in include/ and only build the needed osreldate.h.
Because of how osreldate.h was being built with newvers.sh, which always
spat out a vers.c dependent on SVN or git, the meta mode build was
considering osreldate.h to depend on the current git or SVN index.  This
would lead to entire tree rebuilds when modifying git's index.  There's
no reason to be generating vers.c here so just skip it.

While here, in mk-osreldate.sh rename PARAM_H to proper PARAMFILE (which
newvers.sh already has a default for) and remove unneeded export.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:10:59 +00:00
Adrian Chadd
94a88508a5 [ath] listen to all beacons in IBSS and software beacon miss.
I added MYBEACON support a while ago to listen to beacons that are only
for your configured BSSID.  For AR9380 and later NICs this results in
a lot less chip wakeups in station mode as it then only shows you beacons
that are destined to you.

However in IBSS mode you really do want to hear all beacons so you can do
IBSS merges.  Oops.

So only use MYBEACON for STA + not-scanning, and just use BEACON for
the other modes it used to use BEACON for.

This doesn't completely fix IBSS merges though - there are still some
conditions to chase down and fix.
2015-11-25 18:24:49 +00:00
Adrian Chadd
75426752f5 [net80211] log the A-MPDU setup attempt count as part of debugging.
I've seen some cases where we get stuck in a loop constantly trying to
negotiate A-MPDU TX which is definitely not supposed to happen.
This will let me see if it's something funky with the retry count or
not.
2015-11-25 18:16:42 +00:00
Fabien Thomas
edd0e0b098 The r241129 description was wrong that the scenario is possible
only for read locks on pcbs. The same race can happen with write
lock semantics as well.

The race scenario:

- Two threads (1 and 2) locate pcb with writer semantics (INPLOOKUP_WLOCKPCB)
 and do in_pcbref() on it.
- 1 and 2 both drop the inp hash lock.
- Another thread (3) grabs the inp hash lock. Then it runs in_pcbfree(),
 which wlocks the pcb. They must happen faster than 1 or 2 come INP_WLOCK()!
- 1 and 2 congest in INP_WLOCK().
- 3 does in_pcbremlists(), drops hash lock, and runs in_pcbrele_wlocked(),
 which doesn't free the pcb due to two references on it.
 Then it unlocks the pcb.
- 1 (or 2) gets wlock on the pcb, runs in_pcbrele_wlocked(), which doesn't
 report inp as freed, due to 2 (or 1) still helding extra reference on it.
 The thread tries to do smth with a disconnected pcb and crashes.

Submitted by:	emeric.poupon@stormshield.eu
Reviewed by:	gleb@
MFC after:	1 week
Sponsored by: Stormshield
Tested by: Cassiano Peixoto, Stormshield
2015-11-25 14:45:43 +00:00
Andrey V. Elsukov
03b7b4bf05 Fix the build. 2015-11-25 11:31:07 +00:00
Andrey V. Elsukov
ef91a9765d Overhaul if_enc(4) and make it loadable in run-time.
Use hhook(9) framework to achieve ability of loading and unloading
if_enc(4) kernel module. INET and INET6 code on initialization registers
two helper hooks points in the kernel. if_enc(4) module uses these helper
hook points and registers its hooks. IPSEC code uses these hhook points
to call helper hooks implemented in if_enc(4).
2015-11-25 07:31:59 +00:00
Andrey V. Elsukov
0991fe0117 Check that hhk_helper pointer isn't NULL before access.
It isn't forbidden to use NULL pointer for hook_helper in hookinfo
structure when hhook_add_hook() adds new helper hook.
2015-11-25 07:14:58 +00:00
Conrad Meyer
c4492f4758 NTB: WC/WB isn't enough; set MMR region as UC
And expose vm_memattr_t of current mapping to consumers (as well as the
ability to change it to one of UC, WB, WC).

After short discussion with:	jhb (but no review)
Sponsored by:	EMC / Isilon Storage Division
2015-11-25 01:59:08 +00:00
Konstantin Belousov
2a8a46b161 Correct the number of DTLB entries reported for the CPUID Leaf 2
descriptor 0x6c.

Confirmed by:	Intel
MFC after:	3 days
2015-11-24 19:55:11 +00:00
Alexander Motin
e2929f5f91 Rename ASYNC_LIP_F8 to ASYNC_LIP_NOS_OLS_RECV.
New name better repsents its meaning for modern chips.
2015-11-24 19:20:49 +00:00
Andriy Voskoboinyk
974d2101ba urtwn(4): rework ROM reading.
- Add error handling for urtwn_(r88e_)read_rom() and
urtwn_efuse_*() functions.
- Remove code duplication between urtwn_efuse_read() and
urtwn_r88e_read_rom().
- Merge r88e_rom and (r92c_)rom structures
(only one of them can be used at the same time).
- Other minor fixes / improvements.

Tested with RTL8188EU, STA mode
(URTWN_DEBUG + USB_DEBUG, hw.usb.urtwn.debug=3, no visual differences).

Reviewed by:	kevlo
Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D4253
2015-11-24 19:20:45 +00:00
Conrad Meyer
e7f64f2e33 ntb: Add MW tunable for MMR Xeon errata workaround
Adds a new tunable, ntb.hw.b2b_mw_idx, which specifies the offset (from the
total number of memory windows) to use for register access on hardware with
the SDOORBELL_LOCKUP errata.  The default is -1, i.e., the last memory
window.

We map BARs before the b2b_mw_idx is selected, so map them all as memory
windows initially.  The register memory window should not be write-combined,
so we explicitly disable WC on the selected MW later.

This introduces a layer of abstraction between consumer memory window
indices, which exclude any exclusive errata-workaround BARs, and internal
memory window indices, which include such BARs.  An internal routine,
ntb_user_mw_to_idx(), converts the former to the latter.  Public APIs have
been updated to use this instead of assuming the exclusive workaround BAR is
the last available MW.

Sponsored by:	EMC / Isilon Storage Division
2015-11-24 18:51:17 +00:00
Nathan Whitehorn
8accb33404 Use what we really mean (powerpc_lwsync()) rather than the Linux-compat
mb() here and provide some more documentation on what, exactly, makes this
code safe.

Requested by and discussed with:	kib, alc
2015-11-24 16:10:21 +00:00
Svatopluk Kraus
b09e6b5c6e Flush all kernel mappings from TLB(s) in time when they are cleared.
Replace tlb_flush_local() by tlb_flush() as even not global mappings
could be fetched to TLB(s) on other cores by speculative table walk.

From OS point of view, it was not a problem as either such mappings
were not used anymore or they were flushed from TLB(s) when reused.
However, from hardware point of view, it was a problem. Not flushed
mappings could be a target for speculative reads or prefetches (which
might be quite aggresive on ARM cores). As speculative read can fill
cacheline, it can cause a real problem, when physical page is reused,
but mapped with different memory attributes.

Anyhow, it's good to have only valid mappings in TLB(s).

Approved by:	kib (mentor)
2015-11-24 13:57:41 +00:00
Hans Petter Selasky
3884ff1831 Add some defines needed by the coming mlx5 infiniband support.
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2015-11-24 12:11:56 +00:00
Andrew Turner
ac4dad9e2f Add support for moving the DMAP range. This is needed as some AMD SoCs
place physical memory at an address outside the old DMAP range. This is an
issue as we rely on being able to move from PA -> VA using this range.

Obtained from:	Patrick Wildt <patrick@bitrig.org> (earlier version)
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D3885
2015-11-24 11:01:43 +00:00
Konstantin Belousov
547831b6fd Rework the vnode cache recycling to meet free and unused vnodes
targets.  See the comment above wantfreevnodes variable for the
description of the algorithm.

The vfs.vlru_alloc_cache_src sysctl is removed.  New code frees
namecache sources as the last chance to satisfy the highest watermark,
instead of selecting the source vnodes randomly. This provides good
enough behaviour to keep vn_fullpath() working in most situations.
The filesystem layout with deep trees, where the removed knob was
required, is thus handled automatically.

Submitted by:	bde
Discussed with:	mckusick
Tested by:	pho
MFC after:	1 month
2015-11-24 09:45:36 +00:00
Konstantin Belousov
0b39ffb35f On PowerPC 64bit, the linux-compat mb() definition is implemented with
lwsync instruction, which does not provide Store/Load barrier.  Fix
this by using "full" sync barrier for mb().

atomic_store_rel() does not need full barrier, change mb() call there
to the lwsync instruction if not hitting the known CPU erratas
(i.e. on 32bit).  Provide powerpc_lwsync() helper to isolate the
lwsync/sync compile time selection, and use it in atomic_store_rel()
and several other places which duplicate the code.

Noted by:	alc
Reviewed and tested by:	nwhitehorn
Sponsored by:	The FreeBSD Foundation
2015-11-24 09:13:21 +00:00
Kevin Lo
ff6b30b9fa Add dependency to uether.
Reviewed by:	hselasky
2015-11-24 08:34:48 +00:00
Adrian Chadd
b45de1ebcd [ath] migrate ioctl and busdma memory operations out into separate source files.
This should be a big no-op pass; and reduces the size of if_ath.c.

I'm hopefully soon going to take a whack at the USB support for ath(4)
and this'll require some reuse of the busdma memory code.
2015-11-24 03:42:58 +00:00
John Baldwin
15d107308f Add a new -B flag for use with list mode (-l) that lists details about
bridges.  Currently this includes information about what resources a
bridge decodes on the upstream side for use by downstream devices including
bus numbers, I/O port resources, and memory resources.  Windows and bus
ranges are enumerated for both PCI-PCI bridges and PCI-CardBus bridges.

To simplify the implementation, all enumeration is done by reading the
appropriate config space registers directly rather than querying the
bridge driver in the kernel via new ioctls.  This does result in a few
limitations.

First, an unimplemented window in a PCI-PCI bridge cannot be accurately
detected as accurate detection requires writing to the window base
register.  That is not safe for pciconf(8).  Instead, this assumes that
any window where both the base and limit read as all zeroes is
unimplemented.

Second, the PCI-PCI bridge driver in a tree has a few quirks for
PCI-PCI bridges that use subtractive decoding but do not indicate that
via the progif config register.  The list of quirks is duplicated in
pciconf's source.

Reviewed by:	imp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D4171
2015-11-23 23:48:07 +00:00
Andrey V. Elsukov
1cf09efe5d Add destroy_object callback to object rewriting framework.
It is called when last reference to named object is going to be released
and allows to do additional cleanup for implementation of named objects.

Obtained from:	Yandex LLC
Sponsored by:	Yandex LLC
2015-11-23 22:06:55 +00:00
Alexander Motin
e3a0bc583b Remove "disable" hint, which duplicates system-wide "disabled". 2015-11-23 20:44:49 +00:00
Mark Johnston
1155462e3a The buffer passed to an sbuf drain callback is not necessarily
null-terminated, so don't assume that it is.

Reported by:	pho
X-MFC-With:	r291059
2015-11-23 18:45:35 +00:00
Andrew Turner
46e3a1113e Use #ifdef to get the file compiling without errors 2015-11-23 18:20:32 +00:00
Nathan Whitehorn
fd6820bbc8 Provide support for userland binaries using the new ELFv2 ABI. This is a
new, simplified, ELF ABI that avoids some of the stranger aspects of the
existing 64-bit PowerPC ABI (function descriptors, in particular). Actually
generating such executables requires a new version of binutils and a newer
compiler (either GCC or clang) than GCC 4.2.1.
2015-11-23 17:07:51 +00:00
Andrew Turner
c2c58185e5 Only enable the first interrupt for now, we don't correctly configure or
route interrupts to the needed cpu.

Sponsored by:	ABT Systems Ltd
2015-11-23 17:05:28 +00:00
Alexander Motin
a4ccb5d682 Fix target mode support for Qlogic 2200 FC adapters.
Now target mode works for all supported FC adapters except ancient 2100,
which is not tested.
2015-11-23 15:49:50 +00:00
Svatopluk Kraus
477f6d2e17 Fix inconsistent use of malloc type for cdev private data.
Remove M_VCHIQ malloc type, now not used anywhere.

Reviewed by:	gonzo
Approved by:	kib (mentor)
2015-11-23 13:23:53 +00:00
Hans Petter Selasky
db8409e00a Fix compile warning about shifting signed negative constant.
MFC after:	3 days
2015-11-23 12:55:37 +00:00
Svatopluk Kraus
eae22c4430 Revert r291142.
The not quite consistent logic for bounce pages allocation is utilizited
by re(4) interface which can hang now.

Approved by:	kib (mentor)
2015-11-23 11:19:00 +00:00
Alexander Motin
3e6deb330e Rip off target mode support for parallel SCSI QLogic adapters.
Hacks to enable target mode there complicated code, while didn't really
work.  And for outdated hardware fixing it is not really interesting.

Initiator mode tested with Qlogic 1080 adapter is still working fine.
2015-11-23 10:06:19 +00:00
Konstantin Belousov
5e27d79314 Split kerne timekeep ABI structure vdso_sv_tk out of the struct
sysentvec.  This allows the timekeep data to be shared between similar
ABIs which cannot share sysentvec.

Make the timekeep_push_vdso() tick callback to the timekeep structures
instead of sysentvecs.  If several sysentvec share the vdso_sv_tk
structure, we would update the userspace data several times on each
tick, without the change.

Only allocate vdso_sv_tk in the exec_sysvec_init() sysinit when
sysentvec is marked with the new SV_TIMEKEEP flag.  This saves
allocation and update of unneeded vdso_sv_tk for ABIs which do not
provide userspace gettimeofday yet, which are PowerPCs arches right
now.

Make vdso_sv_tk allocator public, namely split out and export
alloc_sv_tk() and alloc_sv_tk_compat32().  ABIs which share timekeep
data now can allocate it manually and share as appropriate.

Requested by:	nwhitehorn
Tested by:	nwhitehorn, pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-11-23 07:09:35 +00:00