lindev(4) was only used to provide /dev/full which is now a standard feature of
FreeBSD. /dev/full was never linux-specific and provides a generally useful
feature.
Document this in UPDATING and bump __FreeBSD_version. This will be documented
in the PH shortly.
Reported by: jkim
lindev(4) was only used to provide /dev/full which is now a standard feature of
FreeBSD. /dev/full was never linux-specific and provides a generally useful
feature.
Document this in UPDATING and bump __FreeBSD_version. This will be documented
in the PH shortly.
Reported by: jkim
Adjust the exynos and zedboard dts files to use max-frequency (the
documented standard property) instead of clock-frequency.
Submitted by: Thomas Skibo <ThomasSkibo@sbcglobal.net>
It can fail if pipe map is exhausted (as a result of too many pipes created),
but it is not fatal and could be provoked by unprivileged users. The only
consequence is worse performance with given pipe.
Reported by: ivoras
Suggested by: kib
MFC after: 1 week
The hardware can generate its own frames (eg RTS/CTS exchanges, other
kinds of 802.11 management stuff, especially when it comes to 802.11n)
and these also have PWRMGT flags. So if the VAP is asleep but the
NIC is in force-awake for some reason, ensure that the self-generated
frames have PWRMGT set to 1.
Now, this (like basically everything to do with powersave) is still
racy - the only way to guarantee that it's all actually consistent
is to pause transmit and let it finish before transitioning the VAP
to sleep, but this at least gets the basic method of tracking and
updating the state debugged.
Tested:
* AR5416, STA mode
* AR9380, STA mode
to sleep permanently by executing a HLT with interrupts disabled.
When this condition is detected the guest with be suspended with a reason of
VM_SUSPEND_HALT and the bhyve(8) process will exit.
Tested by executing "halt" inside a RHEL7-beta guest.
Discussed with: grehan@
Reviewed by: jhb@, tychon@
If time_t is 64-bit (i.e. isn't 32-bit) allow any value of year, not
just years less than 2038.
Don't bother fixing the underflow in the case of years before 1903.
MFC after: 1 week
Sponsored by: DARPA, AFRL
and geom_uncompress(4). Now, they produce an almost clean diff(1) output.
Remove a duplicated variable from g_uncompress.c and an unnecessary header
from g_uzip.c.
No functional changes.
This allows existing loader.conf files that set "console=comconsole"
to work without failing. No functional difference otherwise.
Reported by: Michael Dexter, pfSense install.
Reviewed by: neel
MFC after: 3 weeks
Nobody yet reported disk supporting I/Os less then our MAXPHYS value, but
since we any way have code to read Block Limits VPD page, that is easy.
MFC after: 2 weeks
#NO_UNIVERSE. Many of these config files are important examples, but
add little to no regresive value to the intended purpose of
UNIVERSE. We now build over 120 kernels during universe. There's
really little to no value to this over building say 60 or even 30 of
them (either is still a way too big number). This is especially true
for kernels that are nothing more than including a common base and
adding a static DTB file. Start by pruning 1/3 of the arm kernels that
add little regresion value.
kernel config file. If you also want to have a static DTB compiled
into your kernel, however, it cannot be a list. We have no mechanism
in the kernel for picking one, so that doesn't make sense and will
result in a compile-time error.
The changes how TRIM requests are generated to use ZIO_TYPE_FREE + a priority
instead of ZIO_TYPE_IOCTL, until processed by vdev_geom; only then is it
translated the required geom values. This reduces the amount of changes
required for FREE requests to be supported by the new IO scheduler. This
also eliminates the need for a specific DKIOCTRIM.
Also fixed FREE vdev child IO's from running ZIO_STAGE_VDEV_IO_DONE as part
of their schedule.
As the new IO scheduler can result in a request to execute one type of IO to
actually run a different type of IO it requires that zio_trim requests are
processed without holding the trim map lock (tm->tm_lock), as the free request
execute call may result in write request running hence triggering a
trim_map_write_start call, which takes the trim map lock and hence would result
in recused on no-recursive sx lock.
This is based off avg's original work, so credit to him.
MFC after: 1 month
Instead of rereading VPD pages on every device open, do it only on initial
device probe, and in cases when device reported via UNIT ATTENTIONs that
something has changed. Capacity is still rereaded on every open because
it is more critical for operation and more probable to change in run time.
On my tests with Intel 530 SSDs on mps(4) HBA this change reduces time
GEOM needs to retaste the device (that includes few open/close cycles)
from ~150ms to ~30ms.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
fixes and beacon programming / debugging into the ath(4) driver.
The basic power save tracking:
* Add some new code to track the current desired powersave state; and
* Add some reference count tracking so we know when the NIC is awake; then
* Add code in all the points where we're about to touch the hardware and
push it to force-wake.
Then, how things are moved into power save:
* Only move into network-sleep during a RUN->SLEEP transition;
* Force wake the hardware up everywhere that we're about to touch
the hardware.
The net80211 stack takes care of doing RUN<->SLEEP<->(other) state
transitions so we don't have to do it in the driver.
Next, when to wake things up:
* In short - everywhere we touch the hardware.
* The hardware will take care of staying awake if things are queued
in the transmit queue(s); it'll then transit down to sleep if
there's nothing left. This way we don't have to track the
software / hardware transmit queue(s) and keep the hardware
awake for those.
Then, some transmit path fixes that aren't related but useful:
* Force EAPOL frames to go out at the lowest rate. This improves
reliability during the encryption handshake after 802.11
negotiation.
Next, some reset path fixes!
* Fix the overlap between reset and transmit pause so we don't
transmit frames during a reset.
* Some noisy environments will end up taking a lot longer to reset
than normal, so extend the reset period and drop the raise the
reset interval to be more realistic and give the hardware some
time to finish calibration.
* Skip calibration during the reset path. Tsk!
Then, beacon fixes in station mode!
* Add a _lot_ more debugging in the station beacon reset path.
This is all quite fluid right now.
* Modify the STA beacon programming code to try and take
the TU gap between desired TSF and the target TU into
account. (Lifted from QCA.)
Tested:
* AR5210
* AR5211
* AR5212
* AR5413
* AR5416
* AR9280
* AR9285
TODO:
* More AP, IBSS, mesh, TDMA testing
* Thorough AR9380 and later testing!
* AR9160 and AR9287 testing
Obtained from: QCA
Some code will appear soon that is actually setting the chip powerstate
separate from the self-generated frames power state.
* Allow the AR5416 family chips to actually have the power state changed
from the self generated state change.
Tested (STA mode):
* AR5210
* AR5211
* AR5412
* AR5413
* AR5416
* AR9285
All rtsock-initiated rte creation/modification are now
performed in route.c holding radix tree write lock.
This reduces the need for per-rte mutex.
Sponsored by: Yandex LLC
MFC after: 1 month
the 'HLT' instruction. This condition was detected by 'vm_handle_hlt()' and
converted into the SPINDOWN_CPU exitcode . The bhyve(8) process would exit
the vcpu thread in response to a SPINDOWN_CPU and when the last vcpu was
spun down it would reset the virtual machine via vm_suspend(VM_SUSPEND_RESET).
This functionality was broken in r263780 in a way that made it impossible
to kill the bhyve(8) process because it would loop forever in
vm_handle_suspend().
Unbreak this by removing the code to spindown vcpus. Thus a 'halt' from
a Linux guest will appear to be hung but this is consistent with the
behavior on bare metal. The guest can be rebooted by using the bhyvectl
options '--force-reset' or '--force-poweroff'.
Reviewed by: grehan@
into the area backed by vm_page_array wrongly compared end with
vm_page_array_size. It should be adjusted by first_page index to be
correct.
Also, the corner and incorrect case of the requested range extending
after the end of the vm_page_array was incorrectly handled by
allocating the segment.
Fix the comparision for the end of range and return EINVAL if the end
extends beyond vm_page_array.
Discussed with: royger
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
pmap pvlist locks which are scaled by MAXCPU.
This allows an amd64 system to boot with MAXCPU set
to 256, which is currently FreeBSD's hard limit without
x2apic support.
Compile-tested for other arch's.
PR: 185831
Discussed with: jhb
MFC after: 3 weeks
exists on another interface. The panic was introduced by change 264887, which
changed the fibnum parameter in the call to rtalloc1_fib() in
ifa_switch_loopback_route() from RT_DEFAULT_FIB to RT_ALL_FIBS. The solution
is to use the interface fib in that call. For the majority of users, that will
be equivalent to the legacy behavior.
PR: kern/189089
Reported by: neel
Reviewed by: neel
MFC after: 3 weeks
X-MFC with: 264887
Sponsored by: Spectra Logic
platforms which do not use loaders or kernels that want to hardcode
options or for FDT passed in by loader.
Also fix a build issue by putting the kmdp variable accessed back under
the #ifdef FDT; we may wish to revisit decision in which case more
code needs changing.
Submitted by: brooks
by adding an argument to the VM_SUSPEND ioctl that specifies how the virtual
machine should be suspended, viz. VM_SUSPEND_RESET or VM_SUSPEND_POWEROFF.
The disposition of VM_SUSPEND is also made available to the exit handler
via the 'u.suspended' member of 'struct vm_exit'.
This capability is exposed via the '--force-reset' and '--force-poweroff'
arguments to /usr/sbin/bhyvectl.
Discussed with: grehan@
