Brooks Davis [Tue, 30 Apr 2013 18:14:22 +0000 (18:14 +0000)]
Wrap the creation of the ../include link in /usr/lib in
!defined(LIBRARIES_ONLY) so it is only created once on architectures
with 32-bit compat support.
Replace ln -fhs with ${INSTALL_SYMLINK} to the link is logged in the
METALOG.
Luigi Rizzo [Tue, 30 Apr 2013 16:08:34 +0000 (16:08 +0000)]
Partial cleanup in preparation for upcoming changes:
- netmap_rx_irq()/netmap_tx_irq() can now be called by FreeBSD drivers
hiding the logic for handling NIC interrupts in netmap mode.
This also simplifies the case of NICs attached to VALE switches.
Individual drivers will be updated with separate commits.
- use the same refcount() API for FreeBSD and linux
Davide Italiano [Tue, 30 Apr 2013 15:31:45 +0000 (15:31 +0000)]
The Intel PMC architectural events have encodings which are identical to
those of some non-architectural core events. This is not a problem in the
general case as long as there's an 1:1 mapping between the two, but there
are few exceptions. For example, 3CH_01H on Nehalem/Westmere represents
both unhalted-reference-cycles and CPU_CLK_UNHALTED.REF_P.
CPU_CLK_UNHALTED.REF_P on the aforementioned architectures does not measure
reference (i.e. bus) but TSC, so there's the need to disambiguate.
In order to avoid the namespace collision rename all the architectural
events in a way they cannot be ambigous and refactor the architectural
events handling function to reflect this change.
While here, per Jim Harris request, rename
iap_architectural_event_is_unsupported() to iap_event_is_architectural().
socket: Make shutdown() wake up a blocked accept().
A blocking accept (and some other operations) waits on &so->so_timeo. Once
it wakes up, it will detect the SBS_CANTRCVMORE bit.
The error from accept() is [ECONNABORTED] which is not the nicest one -- the
thread calling accept() needs to know out-of-band what is happening.
A spurious wakeup on so->so_timeo appears harmless (sleep retried) except
when lingering on close (SO_LINGER, and in that case there is no descriptor
to call shutdown() on) so this should be fairly safe.
A shutdown() already woke up a blocked accept() for TCP sockets, but not for
Unix domain sockets. This fix is generic for all domains.
This patch was sent to -hackers@ and -net@ on April 5.
Davide Italiano [Tue, 30 Apr 2013 08:33:38 +0000 (08:33 +0000)]
When hwpmc(4) module is unloaded it reports a double leakage. This happens
at least if FreeBSD is ran under VirtualBox. In order to avoid the leakage,
properly deallocate structures in case CPU claims that hw performance
monitoring counters are not supported.
Pass a format string to kproc_create() [1] and thus fix the build with
-DBKTR_NEW_MSP34XX_DRIVER and -Wformat-security.
This also allows to eliminates a superfluous malloc/snprintf/free on
intermediate buffer.
Carl Delsey [Mon, 29 Apr 2013 22:48:53 +0000 (22:48 +0000)]
Add a new driver to support the Intel Non-Transparent Bridge(NTB).
The NTB allows you to connect two systems with this device using a PCI-e
link. The driver is made of two modules:
- ntb_hw which is a basic hardware abstraction layer for the device.
- if_ntb which implements the ntb network device and the communication
protocol.
The driver is limited at the moment to CPU memcpy instead of using DMA, and
only Back-to-Back mode is supported. Also the network device isn't full
featured yet. These changes will be coming soon. The DMA change will also
bring in the ioat driver from the project branch it is on now.
This is an initial port of the GPL/BSD Linux driver contributed by Jon Mason
from Intel. Any bugs are my contributions.
Nick Hibma [Sun, 28 Apr 2013 22:12:40 +0000 (22:12 +0000)]
Replace a silly command sequence with a proper if-then-else.
Generate images sparsely. This saves space and time, especially when
generating images inside a VM (PR 173482).
Add a 'true' statement to last_orders to prevent some version of sh from
tripping over an empty function.
Nick Hibma [Sun, 28 Apr 2013 21:44:44 +0000 (21:44 +0000)]
Doing a cpio from /var/empty if dir was not specified or non-existent
copies its mode to the destination. This is not desirable.
Rephrase this code to be more sensible.
Sean Bruno [Sun, 28 Apr 2013 20:55:45 +0000 (20:55 +0000)]
Silence warning from clang:
/home/sbruno/bsd/head/sys/dev/hptrr/hptrr_osm_bsd.c:178:66: warning: for loop has empty body [-Wempty-body]
for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
^
/home/sbruno/bsd/head/sys/dev/hptrr/hptrr_osm_bsd.c:178:66: note: put the semicolon on a separate line to silence this warning
Rework the handling of the tmpfs node backing swap object and tmpfs
vnode v_object to avoid double-buffering. Use the same object both as
the backing store for tmpfs node and as the v_object.
Besides reducing memory use up to 2x times for situation of mapping
files from tmpfs, it also makes tmpfs read and write operations copy
twice bytes less.
VM subsystem was already slightly adapted to tolerate OBJT_SWAP object
as v_object. Now the vm_object_deallocate() is modified to not
reinstantiate OBJ_ONEMAPPING flag and help the VFS to correctly handle
VV_TEXT flag on the last dereference of the tmpfs backing object.
Make vm_object_page_clean() and vm_mmap_vnode() tolerate the vnode'
v_object of non OBJT_VNODE type.
For vm_object_page_clean(), simply do not assert that object type must
be OBJT_VNODE, and add a comment explaining how the check for
OBJ_MIGHTBEDIRTY prevents the rest of function from operating on such
objects.
For vm_mmap_vnode(), if the object type is not OBJT_VNODE, require it
to be for swap pager (or default), handle the bypass filesystems, and
correctly acquire the object reference in this case.
Assert that the object type for the vnode' non-NULL v_object, passed
to vnode_pager_setsize(), is either OBJT_VNODE, or, if vnode was
already reclaimed, OBJT_DEAD. Note that the later is only possible
due to some filesystems, in particular, nfsiods from nfs clients, call
vnode_pager_setsize() with unlocked vnode.
More, if the object is terminated, do not perform the resizing
operation.
Eliminate the layering violation in the kern_sendfile(). When quering
the file size, use VOP_GETATTR() instead of accessing vnode vm_object
un_pager.vnp.vnp_size.
Take the shared vnode lock earlier to cover the added VOP_GETATTR()
call and, as consequence, the whole internal sendfile loop. Reduce vm
object lock scope to not protect the local calculations.
Note that this is the last misuse of the vnp_size in the tree, the
others were removed from the ELF image activator by r230246.
Robert Watson [Sun, 28 Apr 2013 16:35:24 +0000 (16:35 +0000)]
Enable building string functions as part of libstand on mips; the Makefile
is a bit obfuscated here, as ia64 adds string source files elsewhere, so
simply exclude it here.
Sean Bruno [Sun, 28 Apr 2013 16:35:23 +0000 (16:35 +0000)]
Let's align correctly by setting to 17.
OpenCISS states that if the value is 0, then the driver should try a value
of 31. That's just silly. Set to 17 so that the subtraction for maxio
becomes 16 and aligns nicely.
Alan Cox [Sun, 28 Apr 2013 08:29:00 +0000 (08:29 +0000)]
Eliminate an unneeded call to vm_radix_trimkey() from vm_radix_lookup_le().
This call is clearing bits from the key that will be set again by the next
line.
Neel Natu [Sun, 28 Apr 2013 01:02:59 +0000 (01:02 +0000)]
Get rid of the 'vsc_rxpend' state - it doesn't serve any purpose because we
drop any frames that arrive while the device is starved for receive buffers.
This makes the receive path to only execute in context of the receive thread
and allows for further simplification.
Adrian Chadd [Sun, 28 Apr 2013 00:57:47 +0000 (00:57 +0000)]
Bring over my FreeBSD modifications for the AR9300 HAL to make it
work in FreeBSD.
This is still heavily a work in progress but I'd rather it start
shipping in -HEAD sooner rather than later.
This doesn't (yet) link it into the build system either for a static
kernel or as a module; that will come later (after many, many make universe
tests.)
Ed Schouten [Sat, 27 Apr 2013 21:18:34 +0000 (21:18 +0000)]
Enable improved <tgmath.h> for Clang even when not using C11.
By using __has_extension(c_generic_selections), we can explicitly test
whether we're dealing with a version of Clang that supports _Generic().
That way we can use the improved <tgmath.h> code, even when not using
-std=c11. This massively reduces the compilation time when invoking
these functions.
* Don't call the _fast version of the TLS accessor in terminate() or
unexpected().
1) TLS may not have been set up yet.
2) When we're in one of these functions, Really Bad Stuff has
happened and potentially saving a few cycles really isn't
important.
* Merge in fixes from FreeBSD trunk to make atomics work with recent
clang.
* Fix a copy-and-paste error when setting the unexpected exception handler
(actually set the terminate handler by mistake).
* Fix some warnings.
Patch by Joerg Sonnenberger!
* Don't call the _fast version of the TLS accessor in terminate() or unexpected().
1) TLS may not have been set up yet.
2) When we're in one of these functions, Really Bad Stuff has happened and potentially saving a few cycles really isn't important.
* Merge in fixes from FreeBSD trunk to make atomics work with recent clang.
syslogd: Use closefrom() instead of getdtablesize()/close() loop.
When syslogd forks a process for '|' destinations, it closes all file
descriptors greater than 2.
Use closefrom() for this instead of a getdtablesize()/close() loop because
it is both faster and avoids leaving file descriptors open because the limit
was lowered after they were opened.
Alexander Motin [Sat, 27 Apr 2013 12:46:04 +0000 (12:46 +0000)]
MFprojects/camlock r249542:
Remove ADA_FLAG_PACK_INVALID flag. Since ATA disks have no concept of media
change it only duplicates CAM_PERIPH_INVALID flag, so we can use last one.
Alexander Motin [Sat, 27 Apr 2013 12:39:28 +0000 (12:39 +0000)]
MFprojects/camlock r249541:
Give periph validity flag own periph reference. That slightly simplifies
the release logic and covers hypothetical case if lock is dropped inside
the periph_oninval() method.
Sean Bruno [Sat, 27 Apr 2013 08:40:37 +0000 (08:40 +0000)]
Change maxio to reflect variable hardware configurations.
If max_sg_length is 0, then we default to 16
If max_sg_length is less than CISS_MAX_SG_ELEMENTS, then
we will set round the value of max_sg_length to the nearest
power of 2 and use it to align maxio.
Else, we will use CISS_MAX_SG_ELEMENTS for our calculations.
Thanks to scottl for working me through the history and providing
the basis for this patch.
Submitted by: scott
Obtained from: Yahoo! Inc.
MFC after: 2 weeks
Ed Schouten [Sat, 27 Apr 2013 05:44:39 +0000 (05:44 +0000)]
Remove references to MK_IDEA.
As of r249959, we want to build with IDEA support enabled
unconditionally. As this change removed the MK_IDEA flag, update these
Makefiles accordingly.
Ed Schouten [Sat, 27 Apr 2013 04:56:02 +0000 (04:56 +0000)]
Unbreak <stdatomic.h> on ARM + Clang.
Clang only supports atomic operations for ARMv6. For non-ARMv6, we still
need to emit these functions.
Clang's prototype for these functions slightly differs, as it is truly
based on GCC's documentation. It requires the use of signed types, but
also requires varargs. Still, we are not allowed to simply implement
this function directly. Cleverly work around this by implementing it
under a different name and using __strong_reference().
Rui Paulo [Sat, 27 Apr 2013 01:57:45 +0000 (01:57 +0000)]
Fix the frambuffer issues by calling pmap_mapdev() in the attach routine. This
will make the framebuffer region uncacheable and it will create a proper
KVA -> RAM mapping.
Remove the WITH_IDEA option and build it unconditionally.
The European version of the patent expired in 2011.
The US version of the patent expired in 2012 or prior.
Reviewed by: des
No objection from: cperciva, ehaupt
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