ed [Thu, 19 Feb 2015 18:56:39 +0000 (18:56 +0000)]
Make syslogd work in case shutdown() is POSIX-ly correct.
On POSIX conformant systems, shutdown() should return ENOTCONN when not
connected. We attempted to fix this once (kern/84761), but this change
got backed out because it 'breaks code' (r150155).
I just reapplied the patch and indeed, syslogd fails on startup. Make it
easier to re-enable this change in the future by paching up syslogd to
do the right thing.
andrew [Thu, 19 Feb 2015 16:34:48 +0000 (16:34 +0000)]
Adda function to iterate over the cpu nodes in the OFW or FDT data. This
will be used with arm64 to find which cpus to enable, and could also be
used with 32-bit arm and mips for the same purpose.
Differential Revision: https://reviews.freebsd.org/D1825
Sponsored by: The FreeBSD Foundation
andrew [Thu, 19 Feb 2015 12:47:48 +0000 (12:47 +0000)]
Add support to get the cpu ID from its device driver in a generic way.
This will be needed by arm64 to find the value to pass to the psci (Power
State Coordination Interface) driver, among other things, used to enable
cores.
Differential Revision: https://reviews.freebsd.org/D1824
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
bz [Thu, 19 Feb 2015 11:48:00 +0000 (11:48 +0000)]
Try to unbreak NOIP and NOINET6 LINT builds after r278886
by placing appropriate #ifdefs around otherwise unused variables
or sections with functions called which are not available without
IPv6 support in the kernel.
glebius [Thu, 19 Feb 2015 06:27:14 +0000 (06:27 +0000)]
Temporarily disconnect ifmcstat(8) from build, to make world buildable
ifmcstat(8) noses in kernel memory too much, and thus is very tentative
to any changes in kernel.
I will rewrite it to use some API instead of libkvm(3) and connect back
to build.
glebius [Thu, 19 Feb 2015 01:19:42 +0000 (01:19 +0000)]
Provide a set of inline functions to manage simple mbuf(9) queues, based
on queue(3)'s STAILQ. Utilize them in cxgb(4) and Xen, deleting home
grown implementations.
ken [Wed, 18 Feb 2015 18:30:19 +0000 (18:30 +0000)]
Make sure that the flags for the XPT_DEV_ADVINFO CCB are initialized
properly.
If there is garbage in the flags field, it can sometimes include a
set CDAI_FLAG_STORE flag, which may cause either an error or
perhaps result in overwriting the field that was intended to be
read.
sys/cam/cam_ccb.h:
Add a new flag to the XPT_DEV_ADVINFO CCB, CDAI_FLAG_NONE,
that callers can use to set the flags field when no store
is desired.
sys/cam/scsi/scsi_enc_ses.c:
In ses_setphyspath_callback(), explicitly set the
XPT_DEV_ADVINFO flags to CDAI_FLAG_NONE when fetching the
physical path information. Instead of ORing in the
CDAI_FLAG_STORE flag when storing the physical path, set
the flags field to CDAI_FLAG_STORE.
sys/cam/scsi/scsi_sa.c:
Set the XPT_DEV_ADVINFO flags field to CDAI_FLAG_NONE when
fetching extended inquiry information.
sys/cam/scsi/scsi_da.c:
When storing extended READ CAPACITY information, set the
XPT_DEV_ADVINFO flags field to CDAI_FLAG_STORE instead of
ORing it into a field that isn't initialized.
sys/dev/mpr/mpr_sas.c,
sys/dev/mps/mps_sas.c:
When fetching extended READ CAPACITY information, set the
XPT_DEV_ADVINFO flags field to CDAI_FLAG_NONE instead of
setting it to 0.
sbin/camcontrol/camcontrol.c:
When fetching a device ID, set the XPT_DEV_ADVINFO flags
field to CDAI_FLAG_NONE instead of 0.
sys/sys/param.h:
Bump __FreeBSD_version to 1100061 for the new XPT_DEV_ADVINFO
CCB flag, CDAI_FLAG_NONE.
imp [Wed, 18 Feb 2015 15:25:19 +0000 (15:25 +0000)]
Populate new KERN_OPTS from all the opt_*.h files in
KERNBUILDDIR. Come up with some sensible defaults (though listing them
in kmod.mk may be unwise -- we have no easy way to know what are the
best sensible defaults for everything so we just catch the big stuff).
Append SRCS.${opt} for each option in KERN_OPTS to SRCS to allow easy
conditional compilation. Append any notion of KERN_OPTS_EXTRA to the
list of kernel opts.
delphij [Wed, 18 Feb 2015 08:21:51 +0000 (08:21 +0000)]
- fortuna.c: catch up with r278927 and fix a buffer overflow by using the
temporary buffer when remaining space is not enough to hold
a whole block.
- yarrow.c: add a comment that we intend to change the code and remove
memcpy's in the future. (*)
jhibbits [Wed, 18 Feb 2015 07:34:32 +0000 (07:34 +0000)]
Match the right backlight driver.
Some ATI-based PowerBooks use the string 'mnca' in the backlight controller
device tree entry, so account for this and don't use nVidia when it's not an
nVidia device.
arybchik [Wed, 18 Feb 2015 06:23:16 +0000 (06:23 +0000)]
sfxge: support variable-length response to MCDI GET_BOARD_CFG
Allocate the minimum or maximum response length for GET_BOARD_CFG as
appropriate. When looking up firmware subtypes by partition ID,
check the ID against the actual response length.
Merge of the patch made by Ben Hutchings in 2011.
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
imp [Wed, 18 Feb 2015 05:53:04 +0000 (05:53 +0000)]
On my Lenovo T400, a Atheros 2413 has a problem powering up
sometimes. It will power up wrong and identify itself badly:
cardbus0: <network, ethernet> at device 0.0 (no driver attached)
cardbus0: <simple comms, UART> at device 0.1 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.2 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.3 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.4 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.5 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.6 (no driver attached)
cardbus0: <old, non-VGA display device> at device 0.7 (no driver attached)
All the higher numbered functions (.2 and above) have a config space
of all 0's. This smells a bit like a special debug mode, but the
current atheros driver doesn't cope. It is unclear if this card is
just a flake, or if we're doing something wrong in the power-up
sequence.
Put a work around into the code that tests for this rather unusual
condition. If we power a CardBus device up, and the device says it is
multi-function, and any of the functions have a 0 device ID, try the
power-up sequence again.
markj [Wed, 18 Feb 2015 03:54:54 +0000 (03:54 +0000)]
Remove drti.o's dependency on libelf. This makes it possible to add DTrace
probes to userland programs and libraries without also needing to link
libelf.
dtrace -G places the __SUNW_dof symbol at the beginning of the DOF (DTrace
probe and provider metdata) section in the generated object file; drti.o
now just uses this symbol to locate the section. A complication occurs
when multiple dtrace-generated object files are linked together, since the
__SUNW_dof symbol defined in each file is global. This is handled by
using objcopy(1) to convert __SUNW_dof to a local symbol once drti.o has
been linked with the generated object file. Upstream, this is done using a
linker feature not present in GNU ld.
mjg [Tue, 17 Feb 2015 23:54:06 +0000 (23:54 +0000)]
filedesc: simplify fget_unlocked & friends
Introduce fget_fcntl which performs appropriate checks when needed.
This removes a branch from fget_unlocked.
Introduce fget_mmap dealing with cap_rights_to_vmprot conversion.
This removes a branch from _fget.
Modify fget_unlocked to pass sequence counter to interested callers so
that they can perform their own checks and make sure the result was
otained from stable & current state.
rpaulo [Tue, 17 Feb 2015 23:13:45 +0000 (23:13 +0000)]
release: use xz via pipe when compressing the tarballs.
libarchive(3) doesn't support the new liblzma API yet, but this change
allows us to enable multi-threaded xz compression.
``make release'' should now finish in half the time on a machine with
several cores and fast disks (our typical build server).
This behaviour only applies when building a release and it doesn't
affect buildworld/installworld. To disable threaded xz compression,
set XZ_THREADS=1.
glebius [Tue, 17 Feb 2015 20:52:51 +0000 (20:52 +0000)]
Use anonymous unions and structs to organize shared space in mbuf(9),
instead of preprocessor macros.
This will make debugger output of 'print *m' exactly match the names
we use in code, making life of a kernel hacker way more pleasant. And
this also allows to rename struct_m_ext back to m_ext.
glebius [Tue, 17 Feb 2015 19:32:11 +0000 (19:32 +0000)]
Use anonymous unions to add possibility to put mbufs into queue(3)
STAILQs and SLISTs using the same structure field as good old m_next
and m_nextpkt linkage occupy.
New code is encouraged to use queue(3) macros, instead of implementing
the wheel. However, better not to have a mixture of old style and
queue(3) in one file or subsystem.
glebius [Tue, 17 Feb 2015 19:27:14 +0000 (19:27 +0000)]
Globally enable -fms-extensions when building kernel with gcc, and remove
this option from all modules that enable it theirselves.
In C mode -fms-extensions option enables anonymous structs and unions,
allowing us to use this C11 feature in kernel. Of course, clang supports
it without any extra options.
emaste [Tue, 17 Feb 2015 18:33:17 +0000 (18:33 +0000)]
lldb: workaround to permit cross-arch core file debugging
FreeBSD core files have no section table and thus LLDB's OS and vendor
detection logic does not work. If we encounter such an ELF file, update
an unknown OS to match the host.
This is not really the correct way to handle this, but more extensive
rework of ObjectFileELF will be needed and this change restores cross-
arch core debugging until that can be completed.
jmg [Tue, 17 Feb 2015 17:37:00 +0000 (17:37 +0000)]
When the new random adaptor code was brought it in r273872, a call to
randomdev_init_reader to change read_random over to the newly installed
adaptor was missed. This means both read_random and arc4random (seeded
from read_random) were not returning very random data. This also
effects userland arc4random as it is seeded from kernel arc4random.
The random devices are uneffected and have returned good randomness
since the change.
All keys generated with a kernel of r273872 must be regenerated with
a kernel with this patch. Keys generated may be predictable.
Remove the warning as log is too early to print anything, and it would
always get printed due to early use of arc4random...
Reviewed by: delphij, markm
Approved by: so (delphij)
andrew [Tue, 17 Feb 2015 13:09:20 +0000 (13:09 +0000)]
Pull the ARM ddb unwind code out to a new file. This will allow it to be
used by other places that expect to unwind the stack, e.g. dtrace and
stack(9).
As I have written most of this code I'm changing the license to the
standard FreeBSD license. I have received approval from the other
developers who have changed any of the affected code.
hselasky [Tue, 17 Feb 2015 10:00:15 +0000 (10:00 +0000)]
Fix compilation of the SDP driver and a compile warning after r278886.
Also fix the kernel build rule for mlx4_exp.c.
This fixes the LINT kernel target for amd64.
hselasky [Tue, 17 Feb 2015 07:52:50 +0000 (07:52 +0000)]
Try to resolve infinite interrupts by clearing an undocumented
interrupt status bit. According to the UHCI controller specification
the host controller halted interrupt is non-maskable.
adrian [Tue, 17 Feb 2015 02:35:06 +0000 (02:35 +0000)]
Implement taskqueue_start_threads_cpuset().
This is a more generic version of taskqueue_start_threads_pinned()
which only supports a single cpuid.
This originally came from John Baldwin <jhb@> who implemented it
as part of a push towards NUMA awareness in drivers. I started implementing
something similar for RSS and NUMA, then found he already did it.
I'd like to axe taskqueue_start_threads_pinned() so it doesn't become
part of a longer-term API. (Read: hps@ wants to MFC things, and
if I don't do this soon, he'll MFC what's here. :-)
I have a follow-up commit which converts the intel drivers over
to using the cpuset version of this function, so we can eventually
nuke the the pinned version.
kib [Mon, 16 Feb 2015 22:18:43 +0000 (22:18 +0000)]
Array cannot be NULL, remove always true comparision. ACPI spec
identifies the tested condition for _PRT as "BYTE value of 0", so the
remaining part of the conditionals is sufficient.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
kib [Mon, 16 Feb 2015 21:56:19 +0000 (21:56 +0000)]
Initialize x2APIC mode on the resume path before accessing LAPIC.
Remove unneeded disable of LAPIC in the native_lapic_xapic_mode(). We
attempt to send wakeup IPI on the resume path right after BSP wakeup,
so disabling is wrong.
Reported and tested by: glebius, "Ranjan1018 ." <214748mv@gmail.com>
Sponsored by: The FreeBSD Foundation
MFC after: 2 months
hselasky [Mon, 16 Feb 2015 21:22:56 +0000 (21:22 +0000)]
The kasprintf() function cannot be inlined due to using a variable
number of arguments. Move it to a C-file in the linuxapi module to
make the function usable.
Sponsored by: Mellanox Technologies
MFC after: 3 days
royger [Mon, 16 Feb 2015 16:37:59 +0000 (16:37 +0000)]
xen/intr: improve handling of legacy IRQs
Devices that use ISA IRQs expect them to be already configured, and don't
call bus_config_intr, which prevents those IRQs from working on Xen. In
order to solve it pre-register all the legacy IRQs with the default values
(edge triggered, low polarity) if no override is found.
While there add a panic if the registration of an interrupt override fails.
royger [Mon, 16 Feb 2015 16:30:42 +0000 (16:30 +0000)]
xen/intr: improve PIRQ handling
Improve and cleanup the Xen PIRQ event channel code:
- Remove the xi_shared field as it is unused.
- Clean the "pending" bit in the EOI handler, this is more similar to how
native interrupts are handled.
- Don't mask edge triggered PIRQs, edge trigger interrupts cannot be
masked.
- Panic if PHYSDEVOP_eoi fails.
- Remove the usage of the PHYSDEVOP_alloc_irq_vector hypercall because
it's just a no-op in the Xen versions that are supported by FreeBSD Dom0.