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Helmut Schaa [Sat, 9 Oct 2010 11:35:13 +0000 (13:35 +0200)]
rt2x00: Remove superfluous initialization of qidx
There is no need to initialize qidx to zero as it will ever be
overwritten by the correct value.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Helmut Schaa [Sat, 9 Oct 2010 11:34:43 +0000 (13:34 +0200)]
rt2x00: Use unlikely for error case in rt2x00queue_write_tx_frame
This is an error condition that is not supposed to happen. Hence, it is
safe to add unlikely to this check.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Helmut Schaa [Sat, 9 Oct 2010 11:34:11 +0000 (13:34 +0200)]
rt2x00: Use proper type for rxwi_w2 in rt2800_agc_to_rssi
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Helmut Schaa [Sat, 9 Oct 2010 11:33:43 +0000 (13:33 +0200)]
rt2x00: Optimize unmapping of skbs
Since no skb will be mapped for RX and TX at the same time we can
simply shortcut the check for SKBDESC_DMA_MAPPED_TX.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Helmut Schaa [Sat, 9 Oct 2010 11:33:16 +0000 (13:33 +0200)]
rt2x00: Shortcut link state updates when not operating as STA
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Steve deRosier [Sun, 10 Oct 2010 00:23:28 +0000 (17:23 -0700)]
mac80211: Update mesh constants to approved IEEE ANA values
This patch updates IEEE802.11 mesh constants to be consistent with newly
approved values. It modifies some values, as well as adds many new constants
in preparation for updating mesh code to the current 802.11s drafts. ANA
numbers were taken from:
https://mentor.ieee.org/802.11/dcn/09/11-09-0031-12-0000-ana-database-assigned-number-authority.xls
A few notes are in order:
1. This will break backwards compatibility with existing Linux kernels as
over-the-air constants have changed.
2. Some old and obsolete constants have been retained for now as the mesh code
itself hasn't been updated yet to the new 802.11s draft. This was desired to
keep the existing mesh scheme working until it can be updated. Adding the
approved values is the first step in updating the mesh code.
3. Obsolete constants have been clearly marked.
4. All ANA approved 802.11s constants have been added.
Signed-off-by: Steve deRosier <steve@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 10 Oct 2010 16:21:52 +0000 (18:21 +0200)]
ath9k: implement channel utilization stats for survey
Results for the active channel are updated whenever a new survey dump
is requested, the old data is kept to allow multiple processes to
make their own channel utilization averages.
All other channels only contain the data for the last time that the
hardware was on the channel, i.e. the last scan result or other
off-channel activity.
Running a background scan does not clear the data for the active
channel.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sat, 9 Oct 2010 00:39:30 +0000 (02:39 +0200)]
ath9k: add compile time checking for the size of the channel list
This prevents random memory corruption if the number of channels ever gets
changed without an update to the internal channel array size.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sat, 9 Oct 2010 00:39:29 +0000 (02:39 +0200)]
cfg80211: add channel utilization stats to the survey command
Using these, user space can calculate a relative channel utilization
with arbitrary intervals by regularly taking snapshots of the survey
results.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Fri, 8 Oct 2010 20:35:09 +0000 (22:35 +0200)]
mac80211: temporarily disable reorder release timer
Several serve threading problems in the current
release reorder timer implementation have been
discovered.
A lengthy discussion - which lists some of the
pitfalls and possible solutions - can be found at:
http://marc.info/?t=
128635927000001
But due to the complicated nature of the subject and
the imminent advent of a new -rc cycle, it was
decided to disable the feature for the time being.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Christian Lamparter [Fri, 8 Oct 2010 20:27:07 +0000 (22:27 +0200)]
mac80211: fix possible null-pointer de-reference
This patch not only fixes a null-pointer de-reference
that would be triggered by a PLINK_OPEN frame with mis-
matching/incompatible mesh configuration, but also
responds correctly to non-compatible PLINK_OPEN frames
by generating a PLINK_CLOSE with the right reason code.
The original bug was detected by smatch.
( http://repo.or.cz/w/smatch.git )
net/mac80211/mesh_plink.c +574 mesh_rx_plink_frame(168)
error: we previously assumed 'sta' could be null.
Cc: <stable@kernel.org>
Reviewed-and-Tested-by: Steve deRosier <steve@cozybit.com>
Reviewed-and-Tested-by: Javier Cardona <javier@cozybit.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Fri, 8 Oct 2010 20:13:54 +0000 (22:13 +0200)]
ath5k: use the common cycle counter / listen time implementation
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Fri, 8 Oct 2010 20:13:53 +0000 (22:13 +0200)]
ath9k_hw: move the cycle counter tracking to ath
Instead of keeping track of wraparound, clear the counters on every
access and keep separate deltas for ANI and later survey use.
Also moves the function for calculating the 'listen time' for ANI
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Fri, 8 Oct 2010 20:13:52 +0000 (22:13 +0200)]
ath5k: store the clock rate in common data on channel changes
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Fri, 8 Oct 2010 20:13:51 +0000 (22:13 +0200)]
ath9k_hw: store the clock rate in common data on channel changes
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Greear [Fri, 8 Oct 2010 19:01:15 +0000 (12:01 -0700)]
ath5k: Adjust opmode when interfaces are removed.
Otherwise, if there is an AP and a STATION, and AP
is removed, the NIC will not revert back to STATION mode.
Reported-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Greear [Fri, 8 Oct 2010 16:43:29 +0000 (09:43 -0700)]
ath5k: Print out opmode in debugfs.
Helps debug multi-VIF scenarios.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Greear [Thu, 7 Oct 2010 23:39:20 +0000 (16:39 -0700)]
wireless: Set some stats used by /proc/net/wireless (wext)
Some stats for /proc/net/wireless (and wext in general) are not
being set. This patch addresses a few of those with values easily
obtained from mac80211 core.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Greear [Thu, 7 Oct 2010 23:12:06 +0000 (16:12 -0700)]
mac80211: Improve mlme probe response log messages.
Old messages didn't mention the device in question.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Mon, 11 Oct 2010 18:46:52 +0000 (14:46 -0400)]
Revert "wireless: Use first phyX name available when registering phy devices."
This reverts commit
5a254ffe3ffdfa84fe076009bd8e88da412180d2.
The commit failed to take into account that allocated wireless devices
(wiphys) are not added into the device list upon allocation, but only
when they are registered. Therefore, it opened up a race between
allocating and registering a name, so that if two processes allocate and
register concurrently ("alloc, alloc, register, register" rather than
"alloc, register, alloc, register") the code will attempt to use the
same name twice.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
John W. Linville [Mon, 11 Oct 2010 18:43:46 +0000 (14:43 -0400)]
Merge branch 'wireless-next' of git://git./linux/kernel/git/luca/wl12xx
Ohad Ben-Cohen [Fri, 8 Oct 2010 13:16:27 +0000 (16:16 +0300)]
wl1271: sdio: add suspend/resume support
Add required suspend/resume support to prevent the SDIO
core from removing our card completely during system suspend.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Ohad Ben-Cohen [Fri, 8 Oct 2010 13:16:16 +0000 (16:16 +0300)]
wl1271: sdio: enable runtime PM
Enable runtime PM for the wl1271 SDIO device.
We request power whenever the WLAN interface is brought up,
and release it after the WLAN interface is taken down.
As a result, power is released immediately after probe returns,
since at that point power has not been explicitly requested yet
(i.e. the WLAN interface is still down).
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Shanyu Zhao [Tue, 21 Sep 2010 23:54:01 +0000 (16:54 -0700)]
iwlagn: add temperature offset calib for 6000g2
6000g2 devices need to have temperature offset calibration. The runtime
uCode needs to receive the calibration results just like BB and LO
calibration. To do this, driver reads the offset value from NVM and send
it to uCode after runtime uCode is alive.
Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Shanyu Zhao [Tue, 21 Sep 2010 19:06:18 +0000 (12:06 -0700)]
iwlagn: fix default calibration table size
iwlagn driver uses the IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
as the chain noise reset calibration index and
IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE+1 as the chain noise gain
calibration index, if not specified by the TLV value in the new
firmware format.
However, this is broken if we need to add more calibrations like
the temperature offset calibration because we increased
IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE by 1.
To fix this issue, define IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
and use it as the calibration index instead. We still keep the
IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE as a sanity check for
the TLV value given by ucode.
Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Tue, 21 Sep 2010 23:15:58 +0000 (16:15 -0700)]
iwlagn: no version check for experimental uCode
For experimental uCode, it should work with the driver
if driver has experimental uCode support option enabled;
remove the API version checking.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 14:32:13 +0000 (07:32 -0700)]
iwlwifi: fix dual-mode scanning
The recent scanning code shuffle accidentally
moved the SCAN_HW bit setting _after_ the PAN
parameters are modified, which means that they
don't take the scan into account -- fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:12 +0000 (18:02 +0200)]
iwlwifi: remove iwl_check_bits
The function is used exactly once, and the caller
doesn't even need the special check, it can be
simplified to a simple bit check.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:11 +0000 (18:02 +0200)]
iwlwifi: clean up declarations
A number of declarations in iwl-core.h should
be in agn specific files, and also rename the
iwl-calib.h file to iwl-agn-calib.h to better
reflect that it belongs to agn.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:10 +0000 (18:02 +0200)]
iwlwifi: remove apm_ops.stop
Since all devices share the same operation here,
there's no need to call it indirectly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:09 +0000 (18:02 +0200)]
iwlwifi: remove set_pwr_src operation
The set_pwr_src operation is only ever used from
within the same sub-driver that it is declared
in, so it can just be called directly instead of
being an operation. Also, it is never called to
set the power source to V_aux, so change the two
functions accordingly (but keep the V_aux code
for documentation purposes in a comment).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:08 +0000 (18:02 +0200)]
iwlwifi: remove set_ct_kill operation
This operation is only ever called from set_hw_params,
which is also already based on the config/ops, so that
there's no need to have a separate set_ct_kill op and
we can just call the right ct_threshold function.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:07 +0000 (18:02 +0200)]
iwlwifi: move iwl_dump_fh to agn
The iwl_dump_fh function is only used
by the agn module, so it can be there
instead of being exported by the core.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:06 +0000 (18:02 +0200)]
iwlwifi: move iwl_dump_csr to agn
The iwl_dump_csr function is only used
within the agn module, so it can be
moved there instead of being exported
by the core.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:05 +0000 (18:02 +0200)]
iwlwifi: move iwl_toggle_rx_ant to agn
The iwl_toggle_tx_ant function is only used
by agn code, so it can be moved into the
agn module instead of being exported from
the core.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:04 +0000 (18:02 +0200)]
iwlwifi: remove agn rates info there
Code and data related to agn bitrates can be
part of the agn module rather than being in
the core module.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:03 +0000 (18:02 +0200)]
iwlwifi: remove spurious exports
A number of exports, especially related to
thermal throttling, are unnecessary because
the code lives in the same module that it
is used in, so remove them.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:02 +0000 (18:02 +0200)]
iwlwifi: move tx fail code to agn
The code to print out TX failure reasons is
AGN specific, so it can be in the AGN module.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:01 +0000 (18:02 +0200)]
iwlwifi: move agn specific station code there
By duplicating a little bit of code between 3945
and agn, we can move a lot of code into an agn
specific station management file and thus reduce
the amount of code in core that is dead to 3945.
before:
text data bss dec hex filename
212886 3872 96 216854 34f16 iwlcore.ko
620542 10448 304 631294 9a1fe iwlagn.ko
314013 3264 196 317473 4d821 iwl3945.ko
after:
text data bss dec hex filename
202857 3872 92 206821 327e5 iwlcore.ko
629102 10448 308 639858 9c372 iwlagn.ko
314240 3264 196 317700 4d904 iwl3945.ko
delta:
-10029 iwlcore.ko
8560 iwlagn.ko
227 iwl3945.ko
so it's a net win even if you have both loaded,
likely because a lot of EXPORT_SYMBOLs go away.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:02:00 +0000 (18:02 +0200)]
iwlwifi: remove verify_signature eeprom operation
All drivers share the same implementation, so
there's no need to call this via a function
pointer nor to export it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:01:59 +0000 (18:01 +0200)]
iwlwifi: rename iwl_mac_beacon_update
Rename iwl_mac_beacon_update to iwlcore_beacon_update
and make the calling convention a bit different. The
old name with _mac_ indicated that it was a mac80211
callback, but that's no longer true.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:01:58 +0000 (18:01 +0200)]
iwlwifi: move chain settings to agn
The core module doesn't need to carry around
the code for chain settings that is used for
HT drivers (agn) only.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:01:57 +0000 (18:01 +0200)]
iwl3945: use iwl3945_commit_rxon
There's no need to go via the indirect function
call from within the 3945 subdriver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:01:56 +0000 (18:01 +0200)]
iwlwifi: introduce post_scan hook
The different drivers need to do different things
after a scan, so create a post_scan hook to allow
them to do this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Wed, 22 Sep 2010 16:01:55 +0000 (18:01 +0200)]
iwlagn: rename iwl_commit_rxon
iwl_commit_rxon really should be named
iwlagn_commit_rxon, so rename it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Rajkumar Manoharan [Thu, 7 Oct 2010 15:28:39 +0000 (20:58 +0530)]
ath9k_hw: Fix hw reset failure with HTC driver
The following commit removed DISABLE_REGWRITE_BUFFER ops. The unnecessary
REGWRITE_BUFFER_FLUSH was not removed properly which is causing failure on
hw reset.
Author: Felix Fietkau <nbd@openwrt.org>
Date: Tue Oct 5 12:03:42 2010 +0200
ath9k_hw: clean up register write buffering
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 7 Oct 2010 11:11:09 +0000 (13:11 +0200)]
cfg80211: constify WDS address
There's no need for the WDS peer address
to not be const, so make it const.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 7 Oct 2010 11:10:30 +0000 (13:10 +0200)]
nl80211: use new genl helpers for WDS
Bill Jordan's patch to allow setting the WDS
peer crossed with my patch removing all the
boilerplate code in nl80211, and consequently
he didn't make use of it yet. Fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 7 Oct 2010 10:55:24 +0000 (12:55 +0200)]
mac80211: fix sw scan locking
The recent scan overhaul broke locking
because now we can jump to code that
attempts to unlock, while we don't have
the mutex held. Fix this by holding the
mutex around all the relevant code.
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Juuso Oikarinen [Thu, 7 Oct 2010 07:16:42 +0000 (10:16 +0300)]
wl1271: Support FEM autodetection
In the NVS/INI-parameters for the driver/firmware there is the FEM
(front end module) selection option, which may configure the hardware FEM
via autodetection or manual selection. So far, there has been support for
manual selection only.
Add support for FEM autodetection.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Thu, 7 Oct 2010 18:40:26 +0000 (14:40 -0400)]
Merge branch 'wireless-next-2.6' of git://git./linux/kernel/git/iwlwifi/iwlwifi-2.6
John W. Linville [Thu, 7 Oct 2010 18:39:03 +0000 (14:39 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
John W. Linville [Thu, 7 Oct 2010 15:35:40 +0000 (11:35 -0400)]
Revert "mac80211: use netif_receive_skb in ieee80211_tx_status callpath"
This reverts commit
5ed3bc7288487bd4f891f420a07319e0b538b4fe.
It turns-out that not all drivers are calling ieee80211_tx_status from a
compatible context. Revert this for now and try again later...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Thu, 7 Oct 2010 15:31:56 +0000 (11:31 -0400)]
Revert "rtl8180: use NAPI for bottom-half processing"
This reverts commit
030725d2c7c1fafec7ede618647bf30ed79601f0.
This commit relies on commit
5ed3bc7288487bd4f891f420a07319e0b538b4fe
("mac80211: use netif_receive_skb in ieee80211_tx_status callpath")
Unfortunately not all drivers are calling ieee80211_tx_status from a
compatible context, so that commit needs to be reverted in 2.6.36.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Wed, 6 Oct 2010 23:39:18 +0000 (16:39 -0700)]
iwlagn: add define for MODULE_FIRMWARE
Adding MODULE_FIRMWARE define for 130 series of devices
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Wed, 6 Oct 2010 23:39:17 +0000 (16:39 -0700)]
iwlagn: fix module firmware name for 130 series device
130 series device should use firmware name with 130 in it.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
John W. Linville [Wed, 6 Oct 2010 20:40:40 +0000 (16:40 -0400)]
mac80211: avoid uninitialized var warning in ieee80211_scan_cancel
net/mac80211/scan.c: In function ‘ieee80211_scan_cancel’:
net/mac80211/scan.c:794: warning: ‘finish’ may be used uninitialized in this function
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 6 Oct 2010 19:18:04 +0000 (21:18 +0200)]
cfg80211: fix BSS double-unlinking
When multiple interfaces are actively trying
to associate with the same BSS, they may both
find that the BSS isn't there and then try to
unlink it. This can cause errors since the
unlinking code can't currently deal with items
that have already been unlinked.
Normally this doesn't happen as most people
don't try to use multiple station interfaces
that associate at the same time too.
Fix this by using the list entry as a flag to
see if the item is still on a list.
Cc: stable@kernel.org
Reported-by: Ben Greear <greearb@candelatech.com>
Tested-by: Hun-Kyi Wynn <hkwynn@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bruno Randolf [Wed, 6 Oct 2010 09:34:12 +0000 (18:34 +0900)]
nl80211/mac80211: Add retry and failed transmission count to station info
This information is already available in mac80211, we just need to export it
via cfg80211 and nl80211.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:13 +0000 (11:22 +0200)]
Revert "iwlwifi: do not perferm force reset while doing scan"
This reverts commit
7acc7c683a747689aaaaad4fce1683fc3f85e552. It was
applied to avoid possible warning in ieee80211_restart_hw, however
reason of the warning were races in mac80211, currently hopefully fixed.
Not reseting device when performing scan is bad for two reasons.
When forcing reset from iwl_check_stuck_queue(), in case of fail,
reset will be repeated until scan finish. But since firmware is in bad
shape, scan only finish after scan_check work (about 7s). So we will
delay the reset, what is not good behaviour.
When forcing reset from iwl_recover_from_statistics(), we will not
repeat the reset, so we will not perform reset at all when needed.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:12 +0000 (11:22 +0200)]
mac80211: compete scan to cfg80211 if deferred scan fail to start
We nulify local->scan_req on failure in __ieee80211_start_scan, so
__ieee80211_scan_completed will not call cfg80211_scan_done. Fix that.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:11 +0000 (11:22 +0200)]
mac80211: do not requeue scan work when not needed
When performing hw scan and not abort it, __ieee80211_scan_completed()
is currently called from scan work, so does not need to reschedule work
to call drv_hw_scan().
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:10 +0000 (11:22 +0200)]
mac80211: assure we also cancel deferred scan request
This is partial revert and fix for commit
85f72bc839705294b32b6c16b491c0422f0a71b3 "mac80211: only cancel
software-based scans on suspend"
When cfg80211 request the scan and mac80211 perform some management work,
we defer the scan request. We do not canceling such requests when calling
ieee80211_scan_cancel(), because of SCAN_SW_SCANNING bit check just
before the call. So fix that problem.
Another problem, which commit
85f72bc839705294b32b6c16b491c0422f0a71b3
tries to solve, is we can not cancel HW scan. Hence patch make
ieee80211_scan_cancel() ignore HW scan (see code comments). Keeping
local->mtx lock assures that the deferred scan will not become
"working" HW scan.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:09 +0000 (11:22 +0200)]
mac80211: keep lock when calling __ieee80211_scan_completed()
We are taking local->mtx inside __ieee80211_scan_completed(), but just
before call to that function we drop the lock. Dropping/taking lock is not
good, because can lead to hard to understand race conditions.
Patch split scan_completed() code into two functions, first must be called
with local->mtx taken and second without it.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stanislaw Gruszka [Wed, 6 Oct 2010 09:22:08 +0000 (11:22 +0200)]
mac80211: reduce number of __ieee80211_scan_completed calls
Use goto instruction to call __ieee80211_scan_completed only ones in
ieee80211_scan_work. This is prepare for the next patch.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rafał Miłecki [Wed, 6 Oct 2010 05:50:08 +0000 (07:50 +0200)]
b43: N-PHY: don't duplicate setting channel in shared memory
It's already set in PHY common code.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rafał Miłecki [Wed, 6 Oct 2010 05:50:07 +0000 (07:50 +0200)]
b43: define B43_SHM_SH_CHAN_40MHZ
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Rafał Miłecki [Wed, 6 Oct 2010 05:50:06 +0000 (07:50 +0200)]
b43: N-PHY: simplify channel switching
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Oct 2010 19:34:11 +0000 (21:34 +0200)]
nl80211: fix error in generic netif_running check
Yikes! The error return keeps a netdev reference
and the rdev mutex locked, fix that!
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Oct 2010 17:39:30 +0000 (19:39 +0200)]
cfg80211/mac80211: allow per-station GTKs
This adds API to allow adding per-station GTKs,
updates mac80211 to support it, and also allows
drivers to remove a key from hwaccel again when
this may be necessary due to multiple GTKs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Oct 2010 17:37:40 +0000 (19:37 +0200)]
mac80211: avoid transmitting delBA to old AP
When roaming while we have active BA session,
we can end up transmitting delBA frames to
the old AP while we're already on the new AP's
channel, which can cause warnings.
Simply avoid sending those frames, but still
tear down the internal session state, since
they are not really necessary anyway as we
will implicitly disassociate when sending the
association to the new AP.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Senthil Balasubramanian [Tue, 5 Oct 2010 15:06:41 +0000 (20:36 +0530)]
ath9k: Introduce a wrapper for power save disable.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Senthil Balasubramanian [Tue, 5 Oct 2010 15:06:40 +0000 (20:36 +0530)]
ath9k: remove unnecessary power save flags.
drv_config callback is called only after the ack for the nullframe
is received and so driver need not do anything special for this.
So remove NULLFUNC_COMPLETED, PS_ENABLED flags and bf_isnullfunc
flags from ath9k as mac80211 already handles them properly.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Mon, 4 Oct 2010 18:09:50 +0000 (20:09 +0200)]
ath9k_hw: merge ath9k_hw_ani_monitor_old and ath9k_hw_ani_monitor_new
After the last rounds of cleanup, these functions are now functionally
equivalent and can thus be merged.
Also get rid of some excessive (and redundant) debug messages.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Mon, 4 Oct 2010 18:09:49 +0000 (20:09 +0200)]
ath9k_hw: remove function pointer abstraction for internal ANI ops
The code gets more concise and readable when making the new ANI functions
fall back to the old ones if ANI v2 is disabled. This also makes further code
cleanup easier.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Mon, 4 Oct 2010 18:09:48 +0000 (20:09 +0200)]
ath9k_hw: remove code duplication in phy error counter handling
Split out the PHY error counter update from ath9k_hw_ani_monitor_*, reuse
it in ath9k_hw_proc_mib_event (merged from ath9k_hw_proc_mib_event_old
and ath9k_hw_proc_mib_event_new).
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Mon, 4 Oct 2010 18:09:47 +0000 (20:09 +0200)]
ath9k_hw: clean up ANI state handling
ANI state is kept per channel, so instead of keeping an array of ANI states
with an arbitrary size of 255, move the ANI state into the channel struct.
Move some config settings that are not per-channel out of
the per-channel struct to save some memory.
With those changes, ath9k_ani_restart_old and ath9k_ani_restart_new can
be merged into a single function.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Mon, 4 Oct 2010 18:09:46 +0000 (20:09 +0200)]
ath9k_hw: add a helper function to check for the new ANI implementation
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Tue, 5 Oct 2010 10:03:42 +0000 (12:03 +0200)]
ath9k_hw: clean up register write buffering
Throughout the code, DISABLE_REGWRITE_BUFFER is always called right after
REGWRITE_BUFFER_FLUSH. Since that's unlikely to change any time soon, that
makes keeping those ops separate rather pointless, as it only increases
code size and line number counts.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 3 Oct 2010 17:07:17 +0000 (19:07 +0200)]
ath9k_hw: merge codepaths that access the cycle counter registers
The cycle counters are used by ANI to determine the amount of time that the
radio spent not receiving or transmitting. They're also used for debugging
purposes if the baseband watchdog on AR9003 detects a lockup.
In the future, we want to use these counters to determine the medium utilization
and export this information via survey. For that, we need to make sure that
the counter is only accessed from one place, which also ensures that
wraparounds won't occur at inconvenient points in time.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 3 Oct 2010 17:07:16 +0000 (19:07 +0200)]
ath9k_hw: clean up calibration flags
The calibration actual calibration flags are only used by the per chip family
source files, so it makes more sense to define them in those files instead
of globally. That way the code has to test for less flags.
Also instead of using a separate callback for testing whether a particular
calibration type is supported, simply adjust ah->supp_cals in the calibration
init which is called right after the hardware reset, before any of the
calibrations are run.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Wed, 6 Oct 2010 20:25:52 +0000 (16:25 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Johannes Berg [Tue, 5 Oct 2010 19:40:33 +0000 (21:40 +0200)]
mac80211: delete AddBA response timer
We never delete the addBA response timer, which
is typically fine, but if the station it belongs
to is deleted very quickly after starting the BA
session, before the peer had a chance to reply,
the timer may fire after the station struct has
been freed already. Therefore, we need to delete
the timer in a suitable spot -- best when the
session is being stopped (which will happen even
then) in which case the delete will be a no-op
most of the time.
I've reproduced the scenario and tested the fix.
This fixes the crash reported at
http://mid.gmane.org/
4CAB6F96.
6090701@candelatech.com
Cc: stable@kernel.org
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 3 Oct 2010 17:07:19 +0000 (19:07 +0200)]
ath9k_hw: fix regression in ANI listen time calculation
wireless-testing
commit
37e5bf6535a4d697fb9fa6f268a8354a612cbc00
Author: Luis R. Rodriguez <lrodriguez@atheros.com>
Date: Sat Jun 12 00:33:40 2010 -0400
ath9k_hw: fix clock rate calculations for ANI
This commit accidentally broke clock rate calculation by doubling the
calculated clock rate
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Wed, 6 Oct 2010 15:14:21 +0000 (08:14 -0700)]
iwlagn: define 130 series of WiFi/BT combo devices
add new structures and defines need to identify 130 devices.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Mon, 20 Sep 2010 16:12:33 +0000 (09:12 -0700)]
iwlagn: rename iwl5000_tx_resp
iwl5000_tx_resp really should be iwlagn_tx_resp, rename it.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Mon, 20 Sep 2010 16:12:32 +0000 (09:12 -0700)]
iwlwifi: remove uncorrect comments
some structure belong to _agn devices, not just 5000. Fix it.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Mon, 20 Sep 2010 16:12:31 +0000 (09:12 -0700)]
iwlagn: rename iwl5000_tx_power_dbm_cmd
iwl5000_tx_power_dbm_cmd really should be iwlagn_tx_power_dbm_cmd,
so rename it.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Wed, 6 Oct 2010 15:10:00 +0000 (08:10 -0700)]
iwlagn: reduce redundant parameter definitions
move paramater definitions to a device paramater structure only
leaving the device name, which antennas are used and what firmware
file to use in the iwl_cfg structure. this will not completely
remove the redundancies but greatly reduce them for devices that
only vary by name or antennas. the parameters that are more
likely to change within a given device family are left in iwl_cfg.
also separate bt param structure added to help reduce more.
Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Wey-Yi Guy [Wed, 6 Oct 2010 14:42:43 +0000 (07:42 -0700)]
iwlwifi: schedule to deprecate software scan support
Hardware scan is the prefer method for all iwlwifi devices;
especially for dual-mode functions. Schedule to deprecate the
software scan support in kernel 2.6.40
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
John W. Linville [Tue, 5 Oct 2010 17:50:27 +0000 (13:50 -0400)]
Merge branch 'wireless-next' of git://git./linux/kernel/git/luca/wl12xx
Luis R. Rodriguez [Fri, 1 Oct 2010 21:05:19 +0000 (17:05 -0400)]
mac80211: fix channel assumption for association done work
Be consistent and use the wk->chan instead of the
local->hw.conf.channel for the association done work.
This prevents any possible races against channel changes
while we run this work.
In the case that the race did happen we would be initializing
the bit rates for the new AP under the assumption of a wrong
channel and in the worst case, wrong band. This could lead
to trying to assuming we could use CCK frames on 5 GHz, for
example.
This patch has a fix for kernels >= v2.6.34
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Oct 2010 14:19:42 +0000 (16:19 +0200)]
nl80211: fix remain-on-channel documentation
The documentation for NL80211_CMD_REMAIN_ON_CHANNEL
isn't accurate, an interface index is required by
the command. Update it accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gabor Juhos [Tue, 5 Oct 2010 09:32:17 +0000 (11:32 +0200)]
ath9k: get correct tx gain type in ath9k_hw_4k_get_eeprom
The base_eep_header_4k structure contains information that the
device supports high power tx gain table or not. However the
ath9k_hw_4k_get_eeprom function does not return that value when
it is called with EEP_TXGAIN_TYPE. This leads to that the tx gain
initialization will use the init values from the original tx gain
table even if the device inidicates that the high power table
should be used.
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Shu Hwa Shen <shensh@zcomm.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bruno Randolf [Tue, 5 Oct 2010 04:27:17 +0000 (13:27 +0900)]
ath5k: Don't wake internal queues
We should only wake up queues which mac80211 knows about (queues 0-3). We have
another internal queue ("CAB", queue number 6) which we use for power-saved
frames. When transmitted frames are processed from this queue, we have to make
sure we don't bother mac80211 with waking a queue it doesn't know about.
this fixes:
WARNING: at /home/br1/ath/wireless-testing/net/mac80211/util.c:275
__ieee80211_wake_queue+0xd6/0xe0 [mac80211]()
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 5 Oct 2010 08:41:47 +0000 (10:41 +0200)]
mac80211: fix deadlock with multiple interfaces
The locking around ieee80211_recalc_smps is
buggy -- it cannot acquire another interface's
mutex while the iflist mutex is held because
another code path could be holding the iface
mutex and trying to acquire the iflist mutex.
But the locking is also unnecessary, we only
check "ifmgd->associated" as a bool, and don't
use the pointer (in check_mgd_smps).
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Mon, 4 Oct 2010 19:14:06 +0000 (21:14 +0200)]
nl80211: reduce dumping boilerplate
Consolidate boilerplate code needed for .dumpit
calls operating on netdevs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Mon, 4 Oct 2010 19:14:05 +0000 (21:14 +0200)]
nl80211: use generic check for netif_running
Use a new flag that requires the netdev to be
UP and use it to check instead of coding the
check into all functions that require it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Mon, 4 Oct 2010 19:36:35 +0000 (21:36 +0200)]
nl80211: use the new genetlink pre/post_doit hooks
This makes nl80211 use the new genetlink
pre_doit/post_doit hooks for locking and
checking the interface/wiphy index.
This significantly reduces the code size
and the likelihood of locking errors.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Mon, 4 Oct 2010 19:14:03 +0000 (21:14 +0200)]
genetlink: introduce pre_doit/post_doit hooks
Each family may have some amount of boilerplate
locking code that applies to most, or even all,
commands.
This allows a family to handle such things in
a more generic way, by allowing it to
a) include private flags in each operation
b) specify a pre_doit hook that is called,
before an operation's doit() callback and
may return an error directly,
c) specify a post_doit hook that can undo
locking or similar things done by pre_doit,
and finally
d) include two private pointers in each info
struct passed between all these operations
including doit(). (It's two because I'll
need two in nl80211 -- can be extended.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>