libusbx deprecated libusb_get_port_path and replaced it with
libusb_get_port_numbers. The latter omits an extra parameter which was
unused in the FreeBSD implementation anyway.
The "find node" function call will increase the node reference anyway;
so there's no reason to hold the node table lock during the MLME change.
The only reason I could think of is to stop overlapping mlme ioctls
from causing issues, but this should be fixed a different way.
This fixes a whole class of LORs that creep up when nodes are being
timed out or removed by hostapd.
Tested:
* AR5416, hostap, with nodes coming and going. No LORs or stability
issues were observed.
for the WB195 combo NIC - an AR9285 w/ an AR3011 USB bluetooth NIC.
The AR3011 is wired up using a 3-wire coexistence scheme to the AR9285.
The code in if_ath_btcoex.c sets up the initial hardware mapping
and coexistence configuration. There's nothing special about it -
it's static; it doesn't try to configure bluetooth / MAC traffic priorities
or try to figure out what's actually going on. It's enough to stop basic
bluetooth traffic from causing traffic stalls and diassociation from
the wireless network.
To use this code, you must have the above NIC. No, it won't work
for the AR9287+AR3012, nor the AR9485, AR9462 or AR955x combo cards.
Then you set a kernel hint before boot or before kldload, where 'X'
is the unit number of your AR9285 NIC:
# kenv hint.ath.X.btcoex_profile=wb195
This will then appear in your boot messages:
[100482] athX: Enabling WB195 BTCOEX
This code is going to evolve pretty quickly (well, depending upon my
spare time) so don't assume the btcoex API is going to stay stable.
In order to use the bluetooth side, you must also load in firmware using
ath3kfw and the binary firmware file (ath3k-1.fw in my case.)
Tested:
* AR9280, no interference
* WB195 - AR9285 + AR3011 combo; STA mode; basic bluetooth inquiries
were enough to cause traffic stalls and disassociations. This has
stopped with the btcoex profile code.
TODO:
* Importantly - the AR9285 needs ASPM disabled if bluetooth coexistence
is enabled. No, I don't know why. It's likely some kind of bug to do
with the AR3011 sending bluetooth coexistence signals whilst the device
is asleep. Since we don't actually sleep the MAC just yet, it shouldn't
be a problem. That said, to be totally correct:
+ ASPM should be disabled - upon attach and wakeup
+ The PCIe powersave HAL code should never be called
Look at what the ath9k driver does for inspiration.
* Add WB197 (AR9287+AR3012) support
* Add support for the AR9485, which is another combo like the AR9285
* The later NICs have a different signaling mechanism between the MAC
and the bluetooth device; I haven't even begun to experiment with
making that HAL code work. But it should be a lot more automatic.
* The hardware can do much more interesting traffic weighting with
bluetooth and wifi traffic. None of this is currently used.
Ideally someone would code up something to watch the bluetooth traffic
GPIO (via an interrupt) and then watch it go high/low; then figure out
what the bluetooth traffic is and adjust things appropriately.
* If I get the time I may add in some code to at least track this stuff
and expose statistics. But it's up to someone else to experiment with
the bluetooth coexistence support and add the interesting stuff (like
"real" detection of bulk, audio, etc bluetooth traffic patterns and
change wifi parameters appropriately - eg, maximum aggregate length,
transmit power, using quiet time to control TX duty cycle, etc.)
sockaddr_in6 structures. getnameinfo(3) does the same thing, but it is
also able to represent a scope zone id as described in the RFC 4007.
MFC after: 2 weeks
The "failok" option doesn't have any effect at all unless specified in
fstab(5) and combined with the -a flag. The "failok" option is already
documented in fstab(5).
PR: 177630
No objection: eadler
MFC after: 1 week
* Call the bluetooth setup function during the reset path, so the bluetooth
settings are actually initialised.
* Call the AR9285 diversity functions during bluetooth setup; so the AR9285
diversity and antenna configuration registers are correctly programmed
* Misc debugging info.
Tested:
* AR9285+AR3011 bluetooth combo; this code itself doesn't enable bluetooth
coexistence but it's part of what I'm currently using.
implemented as a 10 bits linear feedback shift register so only
lower 10 bits are valid.
Because this register is used to initialize random backoff interval
register only when resolved duplex is half-duplex, it wouldn't have
caused issues in these days.
Submitted by: Masanobu SAITOH <msaitoh@NetBSD.org>
Reporting link status in driver has a side-effect that makes mii(4)
check current link status. mii(4) will call link status change
callback when it sees link state change. Normally this wouldn't
have problems. However, ASF/IPMI firmware can actively access PHY
regardless of driver's running state such that reporting link
status for not-running interface can generate meaningless link
UP/DOWN messages.
This change also makes dhclient think driver got a valid link
regardless of link establishment so it will bypass dhclient's
initial link status check. I think that wouldn't be issue
though.
Tested by: Daniel Braniss <danny@cs.huji.ac.il>
* Illumos zfs issue #3137 L2ARC compression
Whether or not to compress buffers entering the L2ARC is
controlled by "compression" setting on the dataset, when
compression is not "off", L2ARC compression is enabled.
The compress method is always LZ4 for L2ARC when enabled
because it works best for the scenario.
MFC after: 2 weeks
Avoid to busy/unbusy a page in cases where there is no need to drop the
vm_obj lock, more nominally when the page is full valid after
vm_page_grab().
Sponsored by: EMC / Isilon storage division
Reviewed by: alc
the mask of a cpuset. Also, change the cpuset's mask before updating the
masks of all children. Previously changing a cpuset's mask first required
setting the mask to a super-set of both the old and new masks and then
changing it a second time to the new mask.
- Split the bqlock into bqclean and bqdirty locks.
- Only acquire the wakeup synchronization locks when we cross a
threshold requiring them.
- Restructure the way flushbufqueues() targets work so they are more
smp friendly and sane.
Reviewed by: kib
Discussed with: mckusick, attilio
Sponsored by: EMC / Isilon Storage Division
M vfs_bio.c
with diagnosis of kerberized NFS mount problems. When set,
messages are sent to syslog() (or fprintf(stderr,...) if
"-d" is also specified) to indicate activity/results of
kgssapi upcalls.
Reviewed by: jhb
MFC after: 2 weeks
For example, WITHOUT_SHAREDOCS= in src.conf creates an empty doc
distribution.
Submitted by: Kurt Lidl
Tested by: Kurt Lidl
Discussed with: gjb
MFC after: 1 week
Now that I understand what's going on - and the RX antenna array maps
to what the receive LNA configuration actually is - I feel comfortable
in enabling this.
If people do have issues with this, there's enough debugging now available
that we have a chance to diagnose it without writing it up as 'weird
crap.'
Tested:
* AR9285 STA w/ diversity combining enabled in EEPROM
TODO:
* (More) testing in hostap mode
and controlling this form of antenna diversity) - print out the AR9285
antenna diversity configuration at attach time.
This will help track down and diagose if/when people have connectivity
issues on cards (eg if they connect a single antenna to LNA1, yet the
card has RX configured to only occur on LNA2.)
Tested:
* AR9285 w/ antenna diversity enabled in EEPROM;
* AR9285 w/ antenna diversity disabled in EEPROM; mapping only to a
single antenna (LNA1.)
PR15662: Optimized debug info produces out of order function
parameters
When a function is inlined we lazily construct the variables
representing the function's parameters. After that, we add any
remaining unused parameters.
If the function doesn't use all the parameters, or uses them out of
order, then the DWARF would produce them in that order, producing a
parameter order that doesn't match the source.
This fix causes us to always keep the arg variables at the start of
the variable list & in the original order from the source.
Reported by: avg
MFC after: 1 week
This is required by POSIX, at least for pids that are not known child
processes.
Other problems with job specifications still cause wait to abort with
exit status 2.
PR: 176916
This is only part of the PR; the behaviour for unknown/invalid pids/jobs
remains unchanged (aborts the builtin with status 2).
PR: 176916
Submitted by: Vadim Goncharov
+ pkt-gen -f rx now remains active even when traffic stops
Previous behaviour (exit after 1 second of silence) can be
restored with the -W option
+ the -X option does a hexdump of the content of a packet (both tx and rx).
This can be useful to check what goes in and out.
+ the -I option instructs the sender to use indirect buffers
(not really useful other than to test the kernel module in the
VALE switch)
from each batch flowing on the VALE switch
- feature: add glue for 'indirect' buffers on the sender side:
if a slot has NS_INDIRECT set, the netmap buffer contains pointer(s)
to the actual userspace buffers, which are accessed with copyin().
The feature is not finalised yet, as it will likely need to deal
with some iovec variant for proper scatter/gather support.
This will save one copy for clients (e.g. qemu) that cannot
use the netmap buffer directly.
A curiosity: on amd64 copyin() appears to be 10-15% faster than pkt_copy()
or bcopy() at least for sizes of 256 and greater.
the RX antenna field.
The AR9285/AR9485 use an LNA mixer to determine how to combine the signals
from the two antennas. This is encoded in the RSSI fields (ctl/ext) for
chain 2. So, let's use that here.
This maps RX antennas 0->3 to the RX mixer configuration used to
receive a frame. There's more that can be done but this is good enough
to diagnose if the hardware is doing "odd" things like trying to
receive frames on LNA2 (ie, antenna 2 or "alt" antenna) when there's
only one antenna connected.
Tested:
* AR9285, STA mode
for the RX path.
This is different to the div comb HAL flag, that says it actually
can use this for RX diversity (the "slow" diversity path implemented
but disabled in the AR9285 HAL code.)
Tested:
* AR9285, STA operation
