Update comments to note these functions are reachable if lockstat is
enabled.
Check if the lock has any bits set before attempting unlock, which saves
an unnecessary atomic operation.
Some U-Boot versions do not initialize MT7620's Frame Engine.
Then it is not possible to receive packets from the network.
Setting GDMA1 Frames Destination Port to Port 0 (CPU) in GDM Forwarding
Configuration register solves this issue.
Submitted by: Hiroki Mori (yamori813@yahoo.co.jp)
Reviewed by: adrian mizhka (previous version)
Differential Revision: https://reviews.freebsd.org/D9301
* on the station side, only call the quiet time IE method if we have a
quiet IE - otherwise call the NULL method once, and then don't waste
time calling NULL
* on the beacon generation side - force a beacon regeneration each time
quiet time is enabled/disabled. Without this, enabling/disabling quiet
time IE would cause the beacon contents to be corrupted since none of
the "move contents around" logic (like for CSA and TIM handling) is implemented.
This changes the size of ieee80211_node so it requires a kernel recompile,
but no userland recompile.
Tested:
* AR9380, AP mode, enabling/disabling quiet time IE
* AR9380, STA mode, with upcoming driver changes.
This improves singlethreaded throughput on my test machine from ~247 mln
ops/s to ~328 mln.
It is mostly about avoiding the setup cost of lockstat.
Reviewed by: jhb (previous version)
using the ACPI C1/mwait sleep method.
Previously, the mwait instruction would return when an interrupt was
pending; however, the idle loop did not actually enable interrupts when
this occurred. This led to a situation where the idle loop could quickly
spin through the C1/mwait sleep method a number of times when an interrupt
was pending. (Eventually, the situation corrected itself when something
other than an interrupt triggered the idle loop to either enable interrupts
or schedule another thread.)
Reviewed by: kib, imp (earlier version)
Input from: jhb
MFC after: 1 week
Sponsored by: Netflix
Fix bugs found by Coverity in efipart.c.
The Issue is that efi_devpath_last_node() can return NULL pointer, and
therefore we should check for it. In real life we really do not
expect to see it to happen, so we will just error out from the test.
CID: 1371004
Reported by: Coverity
Reviewed by: allanjude
Approved by: allanjude (mentor)
Differential Revision: https://reviews.freebsd.org/D9490
The 1s delay was added in the update to version 16 fw, where Family 8000
support was added.
Obtained from: DragonflyBSD commit bb480ca679a7ea530bdca6e41082d5755e9751dc
* Add the command groups enum, and the iwm_phy_ops_subcmd_ids enum
to if_iwmreg.h definitions.
* The IWM_DTS_MEASUREMENT_NOTIF_WIDE notification will be generated by
version 17 firmware.
Taken-From: Linux iwlwifi
Obtained from: DragonflyBSD commit 4d8d6f9def2ffb60aaf2d88f72f069a96c0b4e3f
* Adds IWM_DEBUG_TEMP debug message type, for printing messages related
to temperature sensors and thermal/TDP infos.
* The firmware regularly sends us DTS measurement notifications, so just
print the temperature value as a debugging message.
(Adrian's addition):
* Eventually this can be used by the driver to limit transmit rate / power to
try and do some thermal throttling.
Obtained from: DragonflyBSD commit efb7d4eb5c3140889a8880e12fd83c7bbfd0059d
* Add iwm_pcie_set_cmd_in_flight() and iwm_pcie_clear_cmd_in_flight()
helper methods.
* Use ring->queued tracking in the command queue to set/clear the
cmd_hold_nic_awake bit at the right points.
Taken-From: Linux iwlwifi
Obtained from: DragonflyBSD commit ce43f57f5308b579ea21e8a5a29969114ba2247d
* Add IWM_FLAG_SCAN_RUNNING to sc->sc_flags to track whether the firmware
is currently running a scan, in order to decide wheter iwm_scan_end
needs to abort a running scan.
* In iwm_scan_end, if the scan is still running, we now abort it, in order
to keep the firmware scanning state in sync.
* Try to make things a bit simpler, by reacting on the
IWM_SCAN_OFFLOAD_COMPLETE and IWM_SCAN_COMPLETE_UMAC notifications,
instead of IWM_SCAN_ITERATION_COMPLETE and
IWM_SCAN_ITERATION_COMPLETE_UMAC. This should be fine since we always
only tell the firmware to do a single scan iteration anyway.
Obtained from: DragonflyBSD commit 1f249c981c4e89e7cde1836a75b61cac36dc7ac5
* Uses the notification wait api to wait for the corresponding scan
complete notification after sending the abort command.
Taken-From: Linux iwlwifi
Obtained from: DragonflyBSD commit b484d09d54301740f036ddf02008117f563960c2
* This also fixes one of many small nic lock handling bugs, and matches
iwlwifi's code.
Obtained from: DragonflyBSD git 50787d03cd0a0366c9cc4a055bb6977e5f65c85d
Don't start switcher kproc until the first GEOM is created.
Reviewed by: pjd
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D8576
In the kernel, cache the machine and flags fields from ELF header to use in
the ELF header of a core dump. For gcore, the copy these fields over from
the ELF header in the binary.
This matters for platforms which encode ABI information in the flags field
(such as o32 vs n32 on MIPS).
Reviewed by: kib
Sponsored by: DARPA / AFRL
Differential Revision: https://reviews.freebsd.org/D9392
If multiple threads emit a UDP log_in_vain message concurrently,
the IP addresses could be garbage due to concurrent usage of a
single string buffer inside inet_ntoa(). Use inet_ntoa_r() with
two stack buffers instead.
Reported by: Mark Martinec <Mark.Martinec+freebsd@ijs.si>
MFC after: 3 days
Relnotes: yes
Sponsored by: Dell EMC
Previous implementation would use a random factor to spread readers and
reduce chances of starvation. This visibly reduces effectiveness of the
mechanism.
Switch to the more traditional exponential variant. Try to limit starvation
by imposing an upper limit of spins after which spinning is half of what
other threads get. Note the mechanism is turned off by default.
Reviewed by: kib (previous version)
kern_vm_munmap(), and kern_vm_madvise(), and use them in various compats
instead of their sys_*() counterparts.
Reviewed by: ed, dchagin, kib
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9378
reasons. First is rerooting into USB-mounted device that happens
to be not yet enumerated. The second is when mounting with (non-root)
filesystem on USB device on a hub that's enumerated later than the root
mount: the rc scripts explicitly mount for the root mount holds to be
released, but each USB bus takes the hold asynchronously, and if that
happens after root mount, it would just get ignored.
Reviewed by: marcel
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9388
for mount hold release if the root device already exists. So, unless your
rootdev is not on USB - ie in the usual case - the root mount won't wait
for USB. However, the old behaviour was sometimes used as "wait until USB
is fully enumerated", and r290196 broke that.
This commit adds vfs.root_mount_always_wait tunable, to force the kernel
to always wait for root mount holds, even if the root is already there.
Reviewed by: kib
MFC after: 2 weeks
Relnotes: yes
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9387
