jchandra [Thu, 9 Dec 2010 06:34:28 +0000 (06:34 +0000)]
UMA_MD_SMALL_ALLOC for mips.
Implement uma_small_alloc() and uma_small_free() for mips that allocates
pages from direct mapped memory. Uses the same mechanism as the page table
page allocator, so that we allocate from KSEG0 in 32 bit, and from XKPHYS
on 64 bit.
davidxu [Thu, 9 Dec 2010 02:42:02 +0000 (02:42 +0000)]
MFp4:
It is possible a lower priority thread lending priority to higher priority
thread, in old code, it is ignored, however the lending should always be
recorded, add field td_lend_user_pri to fix the problem, if a thread does
not have borrowed priority, its value is PRI_MAX.
cperciva [Wed, 8 Dec 2010 20:20:10 +0000 (20:20 +0000)]
On amd64, we have (since r1.72, in December 2005) MAX_BPAGES=8192,
while on i386 we have MAX_BPAGES=512. Implement this difference via
'#ifdef __i386__'.
With this commit, the i386 and amd64 busdma_machdep.c files become
identical; they will soon be replaced by a single file under sys/x86.
cperciva [Wed, 8 Dec 2010 19:52:04 +0000 (19:52 +0000)]
MFi386 r1.94: If XEN, make pmap_kextract = pmap_kextract_ma. This is a
no-op currently, since FreeBSD/amd64 doesn't have (paravirtualized) Xen
support, but if/when that support is ever added we'll want this, and
until then it's harmless.
syrinx [Wed, 8 Dec 2010 17:27:59 +0000 (17:27 +0000)]
Add (disabled) sample configurations needed to enable the snmp_usm and
snmp_vacm modules and minimal user/view configurations needed to for
the modules to work properly.
Sponsored by: The FreeBSD Foundation
Reviewed by: philip@ (mostly)
Approved by: philip@
syrinx [Wed, 8 Dec 2010 14:30:25 +0000 (14:30 +0000)]
Add bsnmpd(1)'s SNMP client tools (including SNMPv3 support) to the base system.
Sponsored by: The FreeBSD Foundation (the SNMPv3 bits), Google Summer of Code 2005
Reviewed by: philip@ (mostly), bz@ (earlier version based on p4 ch124545)
Approved by: philip@
syrinx [Wed, 8 Dec 2010 13:51:38 +0000 (13:51 +0000)]
In bsnmpd(1) add support for SNMPv3 message processing model, including message authentication, packet encryption & view-based access control (RFC 3412, 3414, 3415).
Sponsored by: The FreeBSD Foundation
Reviewed by: philip@ (mostly)
Approved by: philip@
yongari [Wed, 8 Dec 2010 01:24:05 +0000 (01:24 +0000)]
r184610 changed the way how TX frames are handled on AX88178 and
AX88772 controllers. ASIX added a new feature for AX88178/AX88772
controllers which allows combining multiple TX frames into a single
big frame. This was to overcome one of USB limitation where it
can't generate more than 8k interrupts/sec which in turn means USB
ethernet controllers can not send more than 8k packets per second.
Using ASIX's feature greatly enhanced TX performance(more than 3~4
times) compared to 7.x driver. However it seems r184610 removed
boundary checking for buffered frames which in turn caused
instability issues under certain conditions. In addition, using
ASIX's feature triggered another issue which made USB controller
hang under certain conditions. Restarting ethernet controller
didn't help under this hang condition and unplugging and replugging
the controller was the only solution. I believe there is a silicon
bug in TX frame combining feature on AX88178/AX88772 controllers.
To address these issues, reintroduce the boundary checking for both
AX88178 and AX88772 after copying a frame to USB buffer and do not
use ASIX's multiple frame combining feature. Instead, use USB
controller's multi-frame transmit capability to enhance TX
performance as suggested by Hans[1].
This should fix a long standing axe(4) instability issues reported
on AX88772 and AX88178 controllers. While I'm here remove
unnecessary TX frame length check since upper stack always
guarantee the size of a frame to be less than MCLBYTES.
Special thanks to Derrick Brashear who tried numerous patches
during last 4 months and waited real fix with patience. Without
this enthusiastic support, patience and H/W donation I couldn't fix
it since I was not able to trigger the issue on my box.
cperciva [Tue, 7 Dec 2010 23:33:20 +0000 (23:33 +0000)]
Postpone the unmasking of event channels (aka. interrupts) until after
the interrupt handlers have been registered. NULL isn't a very good
interrupt handler.
jkim [Tue, 7 Dec 2010 22:23:26 +0000 (22:23 +0000)]
Now the P-state invariant TSC is probed early enough, do not register event
handlers for CPU freqency changes when it is found P-state invariant.
Adjust a comment about non-existent tsc_freq_max() while I am here.
brucec [Tue, 7 Dec 2010 20:46:11 +0000 (20:46 +0000)]
Don't warn if a partition appears not to be aligned on a track boundary.
Modern disks use LBA and create a fake CHS geometry that doesn't have any
relation to the on-disk layout of data.
weongyo [Tue, 7 Dec 2010 20:23:47 +0000 (20:23 +0000)]
Introduces IFF_CANTCONFIG interface flag to point that the interface
isn't configurable in a meaningful way. This is for ifconfig(8) or
other tools not to change code whenever IFT_USB-like interfaces are
registered at the interface list.
jhb [Tue, 7 Dec 2010 18:49:11 +0000 (18:49 +0000)]
Use proper resource ID's for HPET IRQ resources. This mostly consists of
looking to see if there is an existing IRQ resource for a given IRQ
provided by the BIOS and using that RID if so. Otherwise, allocate a new
RID for the new IRQ.
ivoras [Tue, 7 Dec 2010 15:24:08 +0000 (15:24 +0000)]
Undo r216230: the interaction between saved ashift in metadata and
detected ashift does not support this. With this change, pools
created while stripesize=512 could not be imported when stripesize
becomes larger (on the same drive).
kib [Tue, 7 Dec 2010 12:44:33 +0000 (12:44 +0000)]
Update some comments related to use of amd64 full context switch.
In exec_linux_setregs(), use locally cached pointer to pcb to set
pcb_full_iret.
In set_regs(), note that full return is needed when code that sets
segment registers is enabled.
avg [Tue, 7 Dec 2010 12:25:26 +0000 (12:25 +0000)]
opensolaris cyclic: fix deadlock and make a little bit closer to upstream
The dealock was caused in the following way:
- thread T1 on CPU C1 holds a spin mutex, IPIs CPU C2 and waits for the
IPI to be handled
- C2 executes timer interrupt filter, thus has interrupts disabled, and
gets blocked on the spin mutex held by T1
The problem seems to have been introduced by simplifications made to
OpenSolaris code during porting.
The problem is fixed by reorganizing the code to more closely resemble
the upstream version. Interrupt filter (cyclic_fire) now doesn't
acquire any locks, all per-CPU data accesses are performed on a
target CPU with preemption and interrupts disabled thus precluding
concurrent access to the data.
cyp_mtx spin mutex is used to disable preemtion and interrupts; it's not
used for classical mutual exclusion, because xcall already serializes
calls to a CPU. It's an emulation of OpenSolaris
cyb_set_level(CY_HIGH_LEVEL) call, the spin mutexes could probably be
reduced to just a spinlock_enter()/_exit() pair.
Diff with upstream version is now reduced by ~500 lines, however it still
remains quite large - many things that are not needed (at the moment) or
are irrelevant on FreeBSD were simply ripped out during porting.
Examples of such things:
- support for CPU onlining/offlining
- support for suspend/resume
- support for running callouts at soft interrupt levels
- support for callout rebinding from CPU to CPU
- support for CPU partitions
jilles [Mon, 6 Dec 2010 23:49:27 +0000 (23:49 +0000)]
sh: Improve internal-representation-to-text code to avoid binary output.
The code to translate the internal representation to text did not know about
various additions to the internal representation since the original ash and
therefore wrote binary stuff to the terminal.
The code is used in the jobs command and similar output.
Note that the output is far from complete and mostly serves for recognition
purposes.
brucec [Mon, 6 Dec 2010 20:55:14 +0000 (20:55 +0000)]
Ignore any failures with the "local" distribution since it's not present
on release CDs and so will normally fail.
installCommit() returns a DITEM_ value, not a Boolean.
distExtractAll() returns a Boolean, not a DITEM_ value.
cperciva [Mon, 6 Dec 2010 20:40:15 +0000 (20:40 +0000)]
Set correct maximum I/O length. We can only handle I/O of up to
max_request_segments * PAGE_SIZE if the I/O is page-aligned; the
largest I/O we can guarantee will work is PAGE_SIZE less than that.
This unbreaks 'diskinfo -t'.
trasz [Mon, 6 Dec 2010 19:15:38 +0000 (19:15 +0000)]
Add a KASSERT to make it obvious when fork_norfproc() is to be called,
and set *procp to NULL in all cases. Previously, it was not being set
in the ERESTART case. This is effectively no-op, since its value is
ignored by callers in the error case.
bschmidt [Mon, 6 Dec 2010 19:05:44 +0000 (19:05 +0000)]
Fix scanning after loosing a connection. The firmware assumes that as long
as an association ID is set any scan is supposed to be a background scan.
This implies that the firmware will switch back to the associated channel
after a certain threshold, though, we are not notified about that. We
currently catch this case by a timer which will reset the firmware after
a 'scan timeout', though, upper layers are not notified about that and
will simply hang until manual intervention. Fix this by resetting the
firmware's knowledge about any association on RUN -> ASSOC and
!INIT -> SCAN transitions.
bschmidt [Mon, 6 Dec 2010 18:28:39 +0000 (18:28 +0000)]
Fixes for monitor mode:
- Do not call iwn_calib_reset() for monitor mode. We do not want to query
information and do runtime calibration while in monitor mode. Poking the
firmware with adjustments for calibration results in firmware asserts.
This could happened on RUN -> RUN transition only.
- Adjust blink rate for monitor mode. It's supposed to not freak out and
turn off after a while.
- While here, remove one useless assignment of calib.state, it gets
overwritten later in the function.
kib [Mon, 6 Dec 2010 15:15:27 +0000 (15:15 +0000)]
Do not leak %rdx value in the previous image to the new image after
execve(2). Note that ia32 binaries already handle this properly,
since ia32_setregs() resets td_retval[1], but not exec_setregs().
We still do not conform to the amd64 ABI specification, since %rsp
on the image startup is not aligned to 16 bytes.
PR: amd64/124134
Discussed with: Petr Salinger <Petr.Salinger seznam cz>
(who convinced me that there is indeed several bugs)
MFC after: 1 week
ivoras [Mon, 6 Dec 2010 12:18:02 +0000 (12:18 +0000)]
Use GEOM stripesize field when calculating ashift. This will enable correct
alignment on drives with large sector sizes (e.g. 4 KiB) but the
implementation might need to be revisited if devices with large stripesizes
appear (e.g. if RAID controllers or flash drives start using the field),
probably by introducing a physsectorsize field in GEOM providers.
Discussed with: mav, mostly silence on freebsd-geom@ and freebsd-fs@
jilles [Sun, 5 Dec 2010 22:37:01 +0000 (22:37 +0000)]
sh: Improve jobs output of pipelines.
If describing the status of a pipeline, write all elements of the pipeline
and show the status of the last process (which would also end up in $?).
Only write one report per job, not one for every process that exits.
To keep some earlier behaviour, if any process started by the shell in a
foreground job terminates because of a signal, write a message about the
signal (at most one message per job, however).
Also, do not write messages about signals in the wait builtin in
non-interactive shells. Only true foreground jobs now write such messages
(for example, "Terminated").
das [Sun, 5 Dec 2010 22:12:07 +0000 (22:12 +0000)]
Bump __FreeBSD_version for the addition of log2(). This is mainly for the
benefit of ports such as opencity and inkscape that have workarounds for
the lack of a log2() in the base system.
das [Sun, 5 Dec 2010 22:11:03 +0000 (22:11 +0000)]
Add a "kernel" log function, based on e_log.c, which is useful for
implementing accurate logarithms in different bases. This is based
on an approach bde coded up years ago.
This function should always be inlined; it will be used in only a few
places, and rudimentary tests show a 40% performance improvement in
implementations of log2() and log10() on amd64.
The kernel takes a reduced argument x and returns the same polynomial
approximation as e_log.c, but omitting the low-order term. The low-order
term is much larger than the rest of the approximation, so the caller of
the kernel function can scale it to the appropriate base in extra precision
and obtain a much more accurate answer than by using log(x)/log(b).
jilles [Sun, 5 Dec 2010 21:53:29 +0000 (21:53 +0000)]
sh: Avoid marking a job as done before it is fully created.
In r208489, I added code to reap zombies when forking new processes, to
limit the amount of zombies. However, this can lead to marking a job as done
or stopped if it consists of multiple processes and the first process ends
very quickly. Fix this by only checking for zombies before forking the first
process of a job and not marking any jobs without processes as done or
stopped.
dougb [Sun, 5 Dec 2010 21:11:45 +0000 (21:11 +0000)]
Bring in a new feature, adding a -f option to readlink to print the path
of the target, similar to realpath(1). See the discussion at:
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=34662
This brings in the following changes:
1.24
"PR/34662: martijnb at atlas dot ipv6 dot stack dot nl: readlink doesn't
grok -f, and there's no alternative (+fix)
Patch applied with minor tweak (%y -> %R, as it was already taken) plus
some nits from myself. Thanks!"
Obtained from: elad@NetBSD.org
1.25
"Fix a segfault when doing 'stat -f %R' on the stdin file handle, instead
fake the filename '(stdin)' like the %N format."
Obtained from: mlelstv@NetBSD.org
1.27
"The ofmt variable is actually a bit mask (not the character that was
in the format string) so that we can "or" it with the bits in the
formats variable. This fixes the missing " -> " in front of the real
path (when you use %SR).
Also, the ?: needs another space."
Obtained from: atatat@NetBSD.org
I am purposely omitting the following changes:
1.23 A humanize_number(3) clone that should better be implemented by
actually using humanize_number(3)
1.26 This is the removal of license clause 3 and 4, already handled
by imp in r203971
dougb [Sun, 5 Dec 2010 20:47:53 +0000 (20:47 +0000)]
Bring in the change from NetBSD 1.22:
"Fix a trivial truncation case, and eliminate a corner case that might
print a nul character."
I am purposely bypassing the following versions:
1.19 A build infrastructure change that does not apply to us
1.20 A feature I am not interested in, but don't object if someone else
wants to pick it up
1.21 A build infrastructure change that does not apply to us
dougb [Sun, 5 Dec 2010 09:33:04 +0000 (09:33 +0000)]
Bring in the change from NetBSD 1.18:
"If using stat (the -L flag) and it fails, fall back to lstat(). It
may be the case that we're examining a broken symlink, and anything is
better than nothing."
The changes in 1.14 through 1.17 were not relevant to us.
bschmidt [Sun, 5 Dec 2010 09:00:32 +0000 (09:00 +0000)]
For 6000 series and newer devices the DC calibration results are no
longer requested of the boot firmware. Instead of sending those results
to the runtime firmware the firmware is told to do the DC calibration
itself.
cperciva [Sun, 5 Dec 2010 03:20:55 +0000 (03:20 +0000)]
MFamd64 r204214: Enforce stronger alignment semantics (require that the
end of segments be aligned, not just the start of segments) in order to
allow Xen's blkfront driver to operate correctly.
nwhitehorn [Sun, 5 Dec 2010 01:17:53 +0000 (01:17 +0000)]
Switch which software-reserved bit is used to designate a locked PTE
to correspond to the definition used by the PAPR spec so that its PTE
insertion algorithm will properly respect it.
Use correct field to track statistics counting error as bad header length.
This assimilates the code to what ip_input has been doing since r1.1 in
this case.
Submitted by: Rozhuk Ivan (rozhuk.im gmail.com)
MFC after: 4 days