14 Aug, 2015
1 commit
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Instead of using the out-of-line average calculation, use the new
DECLARE_EWMA() macro to declare a signal EWMA, and use that.This actually *reduces* the code size slightly (on x86-64) while
also reducing the station info size by 80 bytes.Signed-off-by: Johannes Berg
05 May, 2015
1 commit
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Since these counters can only be read through debugfs, there's
very little point in maintaining them all the time. However,
even just making them depend on debugfs is pointless - they're
not normally used. Additionally a number of them aren't even
concurrency safe.Move them under MAC80211_DEBUG_COUNTERS so they're normally
not even compiled in.Signed-off-by: Johannes Berg
23 Apr, 2015
1 commit
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Allow debug builds to configure the station hash table maximum
size in order to run with hash collisions in limited scenarios
such as hwsim testing. The default remains 0 which effectively
means no limit.Signed-off-by: Johannes Berg
27 Jan, 2015
1 commit
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This allows mac80211 to configure GCMP and GCMP-256 to the driver and
also use software-implementation within mac80211 when the driver does
not support this with hardware accelaration.Signed-off-by: Jouni Malinen
[remove a spurious newline]
Signed-off-by: Johannes Berg
04 Nov, 2014
1 commit
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This patch adds 802.11p OCB (Outside the Context of a BSS) mode
support.When communicating in OCB mode a mandatory wildcard BSSID
(48 '1' bits) is used.The EDCA parameters handling function was changed to support
802.11p specific values.The insertion of a newly discovered STAs is done in the similar way
as in the IBSS mode -- through the deferred insertion.The OCB mode uses a periodic 'housekeeping task' for expiration of
disconnected STAs (in the similar manner as in the MESH mode).New Kconfig option for verbose OCB debugging outputs is added.
Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg
21 Oct, 2014
1 commit
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When the new CONFIG_MAC80211_RC_MINSTREL_VHT is not set (default 'N'),
there is no behavioral change including in sampling and MCS_GROUP_RATES
remains 8.
Otherwise MCS_GROUP_RATES is 10, and a module parameter *vht_only*
(default 'true'), restricts the rates selection to VHT when VHT is
supported.Regarding the debugfs stats buffer:
It is explicitly increased from 8k to 32k to fit every rates incl. when
both HT and VHT rates are enabled, as for the format, before:
type rate tpt eprob *prob ret *ok(*cum) ok( cum)
HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0( 0)
after:
type rate tpt eprob *prob ret *ok(*cum) ok( cum)
HT20/LGI ABCDP MCS0 0.0 0.0 0.0 1 0( 0) 0( 0)
VHT40/LGI MCS5/2 0.0 0.0 0.0 0 0( 0) 0( 0)Signed-off-by: Karl Beldan
Cc: Felix Fietkau
Signed-off-by: Johannes Berg
23 Jun, 2014
1 commit
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Minstrel has long since proven its worth.
Signed-off-by: John W. Linville
Signed-off-by: Johannes Berg
28 Oct, 2013
1 commit
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Process the CSA frame according to the procedures define in IEEE Std
802.11-2012 section 10.9.8.4.3 as follow:
* The mesh channel switch parameters element (MCSP) must be availabe.
* If the MCSP's TTL is 1, drop the frame but still process the CSA.
* If the MCSP's precedence value is less than or equal to the current
precedence value, drop the frame and do not process the CSA.
* The CSA frame is forwarded after TTL is decremented by 1 and the
initiator field is set to 0. Transmit restrict field and others
are maintained as is.
* No beacon or probe response frame are handled here.Also, introduce the debug message used for mesh CSA purpose.
Signed-off-by: Chun-Yeow Yeoh
Signed-off-by: Johannes Berg
11 Oct, 2013
1 commit
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Use the generic CCM aead chaining mode driver rather than a local
implementation that sits right on top of the core AES cipher.This allows the use of accelerated implementations of either
CCM as a whole or the CTR mode which it encapsulates.Signed-off-by: Ard Biesheuvel
Signed-off-by: Johannes Berg
22 Feb, 2013
1 commit
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Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:- add a new function called devm_ioremap_resource() to properly be
able to check return values.- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
05 Feb, 2013
1 commit
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Add routines to
- maintain a PS mode for each peer and a non-peer PS mode
- indicate own PS mode in transmitted frames
- track neighbor STAs power modes
- buffer frames when neighbors are in PS mode
- add TIM and Awake Window IE to beacons
- release frames in Mesh Peer Service PeriodsAdd local_pm to sta_info to represent the link-specific power
mode at this station towards the remote station. When a peer
link is established, use the default power mode stored in mesh
config. Update the PS status if the peering status of a neighbor
changes.
Maintain a mesh power mode for non-peer mesh STAs. Set the
non-peer power mode to active mode during peering. Authenticated
mesh peering is currently not working when either node is
configured to be in power save mode.Indicate the current power mode in transmitted frames. Use QoS
Nulls to indicate mesh power mode transitions.
For performance reasons, calls to the function setting the frame
flags are placed in HWMP routing routines, as there the STA
pointer is already available.Add peer_pm to sta_info to represent the peer's link-specific
power mode towards the local station. Add nonpeer_pm to
represent the peer's power mode towards all non-peer stations.
Track power modes based on received frames.Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS
neighbor counter and group-addressed frame buffer).Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame
buffering routines in the tx path. Update num_sta_ps to buffer
and release group-addressed frames after DTIM beacons.Announce the awake window duration in beacons if in light or
deep sleep mode towards any peer or non-peer. Create a TIM IE
similarly to AP mode and add it to mesh beacons. Parse received
Awake Window IEs and check TIM IEs for buffered frames.Release frames towards peers in mesh Peer Service Periods. Use
the corresponding trigger frames and monitor the MPSP status.
Append a QoS Null as trigger frame if neccessary to properly end
the MPSP. Currently, in HT channels MPSPs behave imperfectly and
show large delay spikes and frame losses.Signed-off-by: Marco Porsch
Signed-off-by: Ivan Bezyazychnyy
Signed-off-by: Mike Krinkin
Signed-off-by: Max Filippov
Signed-off-by: Johannes Berg
12 Jan, 2013
1 commit
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The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.CC: "John W. Linville"
CC: Johannes Berg
CC: "David S. Miller"
Signed-off-by: Kees Cook
Acked-by: Johannes Berg
Acked-by: David S. Miller
18 Oct, 2012
1 commit
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Signed-off-by: Marco Porsch
Signed-off-by: Johannes Berg
24 Jun, 2012
2 commits
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It can be very useful to have all debug messages
available when debugging, but hard to correlate
between different sources, so add a trace event
for all mac80211 debug messages.Signed-off-by: Johannes Berg
-
There are a few things that make the logging and
debugging in mac80211 less useful than it should
be right now:
* a lot of messages should be pr_info, not pr_debug
* wholesale use of pr_debug makes it require *both*
Kconfig and dynamic configuration
* there are still a lot of ifdefs
* the style is very inconsistent, sometimes the
sdata->name is printed in frontClean up everything, introducing new macros and
separating out the station MLME debugging into
a new Kconfig symbol.Signed-off-by: Johannes Berg
22 Jun, 2012
1 commit
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The TKIP code hasn't been changed in a very long
time, so it seems unlikely that anyone really has
a need for the TKIP debug code. Remove it.Signed-off-by: Johannes Berg
11 Apr, 2012
1 commit
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This patch adds MBSS extensible synchronization framework (Sec.
13.13.2 of IEEE Std. 802.11-2012).The framework is implemented via an ops table which defines the
following functions:rx_bcn_presp() - this is called every time a mesh beacon is
received.
adjust_tbtt() - this is called immediately before a beacon is about
to be transmitted.The default neighbor offset synchronization defined in the standard is
implemented. We also provide template functions for vendor specific
methods.When neighbor offset synchronization is active (which is the default)
mesh neighbors in the same MBSS will track timing offsets to each other
and compensate clock drift.In our tests we observed that this mesh synchronization implementation
successfully corrected drifts between stations of ~2PPM while
introducing a jitter of ~20us.It is also possible to test this framework on mac80211_hwsim simulated
phys to see how it behaves under different topologies, over poor links,
etc.Signed-off-by: Marco Porsch
Signed-off-by: Pavel Zubarev
Signed-off-by: Javier Cardona
Signed-off-by: John W. Linville
29 Nov, 2011
1 commit
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There's little point in this config symbol, if
tracing is disabled the overhead is negligible
and if you think it's too bad you can always
turn off tracing completely.Also remove the part where we don't have sparse
check the tracing code -- it seems that it can
now deal with it (or the code changed).Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
01 Oct, 2011
1 commit
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Register and implement the TDLS cfg80211 callback functions.
Internally prepare and send TDLS management frames. We incorporate
local STA capabilities and supported rates with extra IEs given by
usermode. The resulting packet is either encapsulated in a data frame,
or assembled as an action frame. It is transmitted either directly or
through the AP, as mandated by the TDLS specification.Declare support for the TDLS external setup wiphy capability. This
tells usermode to handle link setup and discovery on its own, and use the
kernel driver for sending TDLS mgmt packets.Signed-off-by: Arik Nemtsov
Cc: Kalyan C Gaddam
Signed-off-by: John W. Linville
25 Aug, 2011
1 commit
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make hwmp_dbg print the relevant sdata->name by default and improve
formatting. Also add mpath_dbg macro for debugging of mesh path
operations.Signed-off-by: Javier Cardona
Signed-off-by: John W. Linville
05 Apr, 2011
1 commit
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The only thing that using crypto_blkcipher with ecb does over just using
arc4 directly is wrapping the encrypt/decrypt function into a for loop,
looping over each individual character.
To be able to do this, it pulls in around 40 kb worth of unnecessary
kernel modules (at least on a MIPS embedded device).
Using arc4 directly not only eliminates those dependencies, it also makes
the code smaller.Signed-off-by: Felix Fietkau
Signed-off-by: John W. Linville
05 Mar, 2011
1 commit
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…wireless-next-2.6 into for-davem
02 Mar, 2011
1 commit
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... Otherwise it is displayed when mac80211 isn't
even turned on, which is completely pointless.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
23 Feb, 2011
1 commit
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…wireless-next-2.6 into for-davem
19 Feb, 2011
1 commit
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"def_bool n" without prompt is pointless, this should be just "bool".
Signed-off-by: Jan Beulich
Signed-off-by: John W. Linville
21 Jan, 2011
1 commit
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The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel. A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.Reviewed-by: Ingo Molnar
Acked-by: David Woodhouse
Signed-off-by: David Rientjes
Cc: Greg KH
Cc: "David S. Miller"
Cc: Jens Axboe
Cc: Arnd Bergmann
Cc: Robin Holt
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Dec, 2010
1 commit
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Conflicts:
net/ipv4/fib_frontend.c
08 Dec, 2010
1 commit
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Extend nl80211 to report an exponential weighted moving average (EWMA) of the
signal value. Since the signal value usually fluctuates between different
packets, an average can be more useful than the value of the last packet.This uses the recently added generic EWMA library function.
--
v2: fix ABI breakage and change factor to be a power of 2.Signed-off-by: Bruno Randolf
Signed-off-by: John W. Linville
03 Dec, 2010
1 commit
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It's not useful to build LED triggers when there's no LEDs that can be
triggered by them. Therefore, fix up the dependencies so that this
cannot happen, and fix a few users that select triggers to depend on
LEDS_CLASS as well (there is also one user that also selects LEDS_CLASS,
which is OK).Signed-off-by: Johannes Berg
Reported-by: Randy Dunlap
Acked-by: Randy Dunlap
Tested-by: Ingo Molnar
Cc: Arnd Hannemann
Cc: Michal Hocko
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Nov, 2010
1 commit
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This reverts commit 86107fd170bc379869250eb7e1bd393a3a70e8ae.
This patch inadvertantly changed the userland ABI.
Signed-off-by: John W. Linville
19 Nov, 2010
1 commit
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Extend nl80211 to report an exponential weighted moving average (EWMA) of the
signal value. Since the signal value usually fluctuates between different
packets, an average can be more useful than the value of the last packet.This uses the recently added generic EWMA library function.
Signed-off-by: Bruno Randolf
Signed-off-by: John W. Linville
01 Jul, 2010
1 commit
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Allow selection of minstrel_ht as default rate control algorithm. At
the moment minstrel_ht can only be requested by the driver code but
not selected as default in make menuconfig. Fix this by using
minstrel_ht when minstrel was selected as default and minstrel_ht
is available.This change won't affect legacy devices as minstrel_ht falls back to
minstrel in that case.Signed-off-by: Helmut Schaa
Signed-off-by: John W. Linville
03 Jun, 2010
1 commit
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Signed-off-by: Felix Fietkau
Signed-off-by: John W. Linville
09 Apr, 2010
1 commit
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Enhance tracing by adding tracing for a variety of
callbacks that the drivers call, and also for
internal calls (currently limited to queue status).
This can aid debugging what is going on in mac80211
in interaction with drivers, since we can now see
what drivers call and not just what mac80211 calls
in the driver.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
11 Mar, 2010
1 commit
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I discovered that if EMBEDDED=y, one can accidentally build a mac80211 stack
and drivers w/ no rate control algorithm. For drivers like RTL8187 that don't
supply their own RC algorithms, this will cause ieee80211_register_hw to
fail (making the driver unusable).This will tell kconfig to provide a warning if no rate control algorithms
have been selected. That'll at least warn the user; users that know that
their drivers supply a rate control algorithm can safely ignore the
warning, and those who don't know (or who expect to be using multiple
drivers) can select a default RC algorithm.Signed-off-by: Andres Salomon
Cc: stable@kernel.org
Signed-off-by: John W. Linville
22 Dec, 2009
1 commit
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The payload alignment warning enabled by MAC80211_DEBUG_PACKET_ALIGNMENT is
difficult. To fix it, a firmware change is needed but in most cases that's
very difficult. So the benefit from the warning is low and most probably
it just creates more confusion for people who just enable all warnings
(like it did for me).Remove the unaligned IP payload warning and the kconfig option. But
leave the unaligned packet warning, it will be enabled with
MAC80211_VERBOSE_DEBUG.Signed-off-by: Kalle Valo
Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
12 Nov, 2009
1 commit
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Add MAC80211_VERBOSE_MHWMP_DEBUG, a debugging option for HWMP
frame processing.Signed-off-by: Rui Paulo
Signed-off-by: Javier Cardona
Reviewed-by: Andrey Yurovsky
Tested-by: Brian Cavagnolo
Signed-off-by: John W. Linville
03 Sep, 2009
1 commit
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We can just display this upon enabling mac80211 with an
'if MAC80211 != n' check.Cc: Johannes Berg
Signed-off-by: Luis R. Rodriguez
Signed-off-by: John W. Linville
14 Aug, 2009
1 commit
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This prevents calling rcu_synchronize from within the tx path by moving the
table growth code to the mesh workqueue.Move mesh_table_free and mesh_table_grow from mesh.c to mesh_pathtbl.c and
declare them static.Also, re-enable mesh in Kconfig and update the configuration description.
Signed-off-by: Javier Cardona
Tested-by: Andrey Yurovsky
Signed-off-by: John W. Linville
30 Jul, 2009
1 commit
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Finally! This is what you've all been waiting for!
This patch makes cfg80211 take care of wext emulation
_completely_ by itself, drivers that don't need things
cfg80211 doesn't do yet don't even need to be aware of
wireless extensions.
This means we can also clean up mac80211's and iwm's
Kconfig and make it possible to build them w/o wext
now!RIP wext.
Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville