adrian [Thu, 2 May 2013 07:02:23 +0000 (07:02 +0000)]
Fix this code to compile without warnings - AH_DEBUG was pulling in
ichan, but OS_MARK was not using it. It only uses it when
AH_DEBUG_ALQ is also defined.
adrian [Thu, 2 May 2013 00:59:39 +0000 (00:59 +0000)]
Add device identification and probe/attach support for the QCA9565.
The QCA9565 is a 1x1 2.4GHz 11n chip with integrated on-chip bluetooth.
The AR9300 HAL already has support for this chip; it just wasn't
included in the probe/attach path.
Tested:
* This commit brought to you over a QCA9565 wifi connection from
FreeBSD.
* .. ie, basic STA, pings, no iperf or antenna diversity checking just yet.
sjg [Wed, 1 May 2013 23:58:39 +0000 (23:58 +0000)]
Local hack to allow smooth transition for ports.
bsd.port.mk can set .MAKE.FreeBSD_UL=yes
to cause :L and :U to have their old behavior.
This should be reverted when 8.3 is EOL.
rmacklem [Wed, 1 May 2013 22:50:45 +0000 (22:50 +0000)]
Document the fact that an NFSv4 mount against a volume on the same host
can result in a hung NFS server and is not recommended.
This is a content change.
jilles [Wed, 1 May 2013 22:42:42 +0000 (22:42 +0000)]
Add pipe2() system call.
The pipe2() function is similar to pipe() but allows setting FD_CLOEXEC and
O_NONBLOCK (on both sides) as part of the function.
If p points to two writable ints, pipe2(p, 0) is equivalent to pipe(p).
If the pointer is not valid, behaviour differs: pipe2() writes into the
array from the kernel like socketpair() does, while pipe() writes into the
array from an architecture-specific assembler wrapper.
rmacklem [Wed, 1 May 2013 22:07:55 +0000 (22:07 +0000)]
Isilon reported that sec=krb5p NFS mounts had a problem when m_len == 0
for the last mbuf of the list with an encrypted message. This patch replaces
the KASSERT() with code that handles this case.
jilles [Wed, 1 May 2013 20:10:21 +0000 (20:10 +0000)]
Add accept4() system call.
The accept4() function, compared to accept(), allows setting the new file
descriptor atomically close-on-exec and explicitly controlling the
non-blocking status on the new socket. (Note that the latter point means
that accept() is not equivalent to any form of accept4().)
The linuxulator's accept4 implementation leaves a race window where the new
file descriptor is not close-on-exec because it calls sys_accept(). This
implementation leaves no such race window (by using falloc() flags). The
linuxulator could be fixed and simplified by using the new code.
Like accept(), accept4() is async-signal-safe, a cancellation point and
permitted in capability mode.
kib [Wed, 1 May 2013 20:08:33 +0000 (20:08 +0000)]
Partially saved extended state must be handled always, i.e. for both
fpu-owned context, and for pcb-saved one. More, the XSAVE could do
partial save, same as XSAVEOPT, so qualifier for the handler should be
use_xsave and not use_xsaveopt.
Since xsave_area_desc is now needed regardless of the XSAVEOPT use,
remove the write-only use_xsaveopt variable.
kib [Wed, 1 May 2013 20:03:50 +0000 (20:03 +0000)]
The check to ensure that xstate_bv always has XFEATURE_ENABLED_X87 and
XFEATURE_ENABLED_SSE bits set is not needed. CPU correctly handles
any bitmask which is subset of the enabled bits in %XCR0.
More, CPU instructions XSAVE and XSAVEOPT could write the mask without
e.g. XFEATURE_ENABLED_SSE, after the VZEROALL. The check prevents the
restoration of the otherwise valid FPU save area.
imp [Wed, 1 May 2013 06:57:46 +0000 (06:57 +0000)]
Don't include asm.h in non-asm files.
Remove #define to get kludges that asm.h used to define
Move clever macros to access assembler instructions to trap.c
Remove __ASSEMBLER__ ifdefs in regdef.h: they aren't needed anymore.
imp [Wed, 1 May 2013 05:46:54 +0000 (05:46 +0000)]
Import virgin regdef.h from 4.4 Lite 2's sys/pmax/include/regdef.h,
expand the %sccs.include.redist.c% directive with the standard
3-clause license, and add $FreeBSD$ to keep the commit script happy.
# This may break some mips stuff, which will be fixed in the next commit.
wkoszek [Wed, 1 May 2013 05:14:59 +0000 (05:14 +0000)]
Make the internal assertion correct--only fail when '\0' is found in
places other than the end of the test section. Otherwise, with kernel
compiled with Clang which happens to be setting ELF section alignment
differently config(8) was throwing assert() failure unnecessarily
Reported by: Kimmo Paasiala <kpaasial (at) gmail.com>
Tested by: Kimmo Paasiala <kpaasial (at) gmail.com>
MFC after: 10 days
Add some advice to get past the hurdle of install -l for the common, but
non-default (and unsupportable) case of setting INSTALL="install -C" in
/etc/make.conf or /etc/src.conf.
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 [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
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.
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 [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.
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.
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.
/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.
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.
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.
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