rt2x00: rt2800 - Make rt30xx and rt35xx chipsets configurable.
Support for rt30xx- and rt35xx-based devices is currently not functional
in rt2800pci and rt2800usb.
In order to not confuse users we shouldn't claim the PCI and USB device
ID's for these devices. However, to allow for testing it is good to still
have them available, although disabled by default.
Make support for these device configuration options that default to off.
For rt2800usb a 3rd class of devices is added, which are the unknown
devices. For these devices it is known that they are either based on
rt28xx, rt30xx or rt35xx, but it is not known on what chipset exactly.
These devices are disabled by default as well, until it can be established
on what chipset exactly they are based.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: rework RT chipset and revision determination for PCI an SOC devices.
The recent rt2800 devices are no longer really identified by their PCI
ID's, but rather by the contents of their CSR0 register. Also for the
other chipsets is the contents of this CSR0 register important.
Change the chipset determination logic to be more aligned with the rt2800
model.
Preparation for the support of rt3070 / rt3090 based devices.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
rt2x00: Reorganize RT chipset setting for PCI/SOC devices.
Don't set the RT chipset for a device from within the generic PCI/SOC code,
but rather from the individual drivers, so that individual drivers have
more control over what RT chipset is set.
Preparation for chip handling updates for rt2800 devices.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Introduce the SoC interface type to detect SoC devices, instead of having
them mimic being PCI devices.
This allows for easier detection of SoC devices.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Randy Dunlap [Fri, 12 Feb 2010 21:02:23 +0000 (13:02 -0800)]
wireless: airo_cs build fixes
When WEXT_PRIV is not enabled, airo_cs has build errors.
It needs to include net/iw_handler.h and it should select
WEXT_PRIV, like the airo driver does.
drivers/net/wireless/airo.c:7655: error: unknown field 'num_private' specified in initializer
drivers/net/wireless/airo.c:7655: warning: initialization makes pointer from integer without a cast
drivers/net/wireless/airo.c:7656: error: unknown field 'num_private_args' specified in initializer
drivers/net/wireless/airo.c:7656: warning: excess elements in struct initializer
drivers/net/wireless/airo.c:7656: warning: (near initialization for 'airo_handler_def')
drivers/net/wireless/airo.c:7658: error: unknown field 'private' specified in initializer
drivers/net/wireless/airo.c:7658: warning: initialization makes integer from pointer without a cast
drivers/net/wireless/airo.c:7658: error: initializer element is not computable at load time
drivers/net/wireless/airo.c:7658: error: (near initialization for 'airo_handler_def.num_standard')
drivers/net/wireless/airo.c:7659: error: unknown field 'private_args' specified in initializer
drivers/net/wireless/airo.c:7659: warning: initialization from incompatible pointer type
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
nl80211: does not allow NEW_STATION and DEL_STATION for mesh
As discussed in linux-wireless mailing list, adding and removing
stations for mesh topologies is not necessary. Since doing it triggers
bugs, the sugestion was to simply disable it.
Tested using a custom iw command "station new". Works only after using
hostapd. "station del" command also works.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Simon Raffeiner <sturmflut@lieberbiber.de> Cc: Andrey Yurovsky <andrey@cozybit.com> Cc: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This manifested itself only in debug messages
and in the debugfs rename failure that would
always happen due to trying to rename the dir
over itself.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Tested-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Thu, 11 Feb 2010 17:07:19 +0000 (18:07 +0100)]
ath9k: add a workaround for ack timeout issues
Adding support for setting the coverage class in some cases broke
association and data transfer, as it overwrote the initial ACK timeout
value from the initvals with a smaller value.
I don't know why the new value works in 5 GHz (matches the initval
there), but not in 2.4 GHz (initvals use 64us here), so until the
problem is fully understood, the value should be increased again.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
iwlwifi: Monitor and recover the aggregation TX flow failure
This change monitors the tx statistics to detect the drop in throughput.
When the throughput drops, the ratio of the actual_ack_count and the expected_
ack_count also drops. At the same time, the aggregated ba_timeout (the number
of ba timeout retries) also rises. If the actual_ack_count/expected_ack_count
ratio is 0 and the number of ba timeout retries rises to 16, no tx packets
(tcp, udp, or ping - icmp) can be delivered. The driver recovers from this
situation by reseting the uCode firmware. If the actual_ack_count/expected_
ack_count ratio drops below 50% (but not 0) and the aggregated ba_timeout
retries just exceed 5 (but not 16), then the driver can reset the radio to
bring the throughput up.
Wey-Yi Guy [Tue, 9 Feb 2010 16:14:11 +0000 (08:14 -0800)]
iwlwifi: clear all the stop_queue flag after load firmware
All the queues are awake and ready to use after loading firmware,
for firmware reload case, if any queues was stopped before
reload, mac80211 will wake those queues after restart hardware, so make
sure all the flag used to keep track of the queue status are
reset correctly.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
iwlwifi: Adjusting PLCP error threshold for 1000 NIC
While testing the station with the NIC 1000 family, it is found that
the plcp error can easily exceed 50 value in 100mSecs. This creates
unneccessary radio reset/tuning. This patch raises the PLCP error
threshold of the NIC 1000 from 50 to 200 error count.
Reinette Chatre [Wed, 3 Feb 2010 17:38:59 +0000 (09:38 -0800)]
iwlwifi: reset card during probe
To ensure that card is in a sane state during probe we add a reset call.
This change was prompted by users of kdump who was not able to bring up the
wireless driver in the kdump kernel. The problem here was that the primary
kernel, which is not running at the time, left the wireless card up and
running. When the kdump kernel starts it is thus possible to immediately
receive interrupts from firmware after registering interrupt, but without
being ready to deal with interrupts from firmware yet.
Reinette Chatre [Tue, 2 Feb 2010 18:57:12 +0000 (10:57 -0800)]
iwlwifi: fix scan race
There is a problem if an "internal short scan" is in progress when a
mac80211 requested scan arrives. If this new scan request arrives within
the "next_scan_jiffies" period then driver will immediately return success
and complete the scan. The problem here is that the scan has not been
fully initialized at this time (is_internal_short_scan is still set to true
because of the currently running scan), which results in the scan
completion never to be sent to mac80211. At this time also, evan though the
internal short scan is still running the state (is_internal_short_scan)
will be set to false, so when the internal scan does complete then mac80211
will receive a scan completion.
Fix this by checking right away if a scan is in progress when a scan
request arrives from mac80211.
Wey-Yi Guy [Wed, 3 Feb 2010 20:24:44 +0000 (12:24 -0800)]
iwlwifi: check for aggregation frame and queue
Error checking for aggregation frames should go into aggregation queue,
if aggregation queue not available, use legacy queue instead.
Also make sure the aggregation queue is available to activate,
if driver and mac80211 is out-of-sync, try to disable the queue and
sync-up with mac80211.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Wey-Yi Guy [Wed, 3 Feb 2010 19:47:19 +0000 (11:47 -0800)]
iwlwifi: multiple force reset mode
Provide the function to perform different type of uCode reset/reload operation.
When uCode detect error and can not fix itself, this iwl_force_reset()
function allow driver to perform the necessary reset/reload functions and help
to bring uCode back to normal operation state.
Currently only 2 type of force reset are available:
- reset radio
- reload firmware
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Sujith [Wed, 10 Feb 2010 09:22:21 +0000 (14:52 +0530)]
mac80211: Deny TX BA session requests during disassociation
In associated state, when bringing an interface down, existing
BA sessions are torn down. When this is in progress, nothing
prevents mac80211 from accepting another BA session start request.
Use a new station flag to fix this.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bob Copeland [Tue, 9 Feb 2010 18:06:54 +0000 (13:06 -0500)]
ath5k: use correct packet type when transmitting
The hardware needs to know what type of frames are being
sent in order to fill in various fields, for example the
timestamp in probe responses (before this patch, it was
always 0). Set it correctly when initializing the TX
descriptor.
Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Vivek Natarajan [Tue, 9 Feb 2010 09:20:28 +0000 (14:50 +0530)]
mac80211: Retry null data frame for power save.
Even if the null data frame is not acked by the AP, mac80211
goes into power save. This might lead to loss of frames
from the AP.
Prevent this by restarting dynamic_ps_timer when ack is not
received for null data frames.
Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Vivek Natarajan [Mon, 8 Feb 2010 12:17:01 +0000 (17:47 +0530)]
mac80211: Reset dynamic ps timer in Rx path.
The current mac80211 implementation enables power save if there
is no Tx traffic for a specific timeout. Hence, PS is triggered
even if there is a continuous Rx only traffic(like UDP) going on.
This makes the drivers to wait on the tim bit in the next beacon
to awake which leads to redundant sleep-wake cycles.
Fix this by restarting the dynamic ps timer on receiving every
data packet.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Andres Salomon [Mon, 8 Feb 2010 02:47:50 +0000 (21:47 -0500)]
mac80211: make rate_control_alloc static
rate_control_alloc is not used by anything outside of
ieee80211_init_rate_ctrl_alg. Both are in rate.c; there's no reason to make
rate_control_alloc visible outside of it.
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes a WARN_ON which is triggered
by Poland's country code.
ath: EEPROM regdomain: 0x8268
ath: EEPROM indicates we should expect a country code
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x37
ath: Country alpha2 being used: PL
ath: Regpair used: 0x37
-----------[ cut here ]------------
WARNING: at drivers/net/wireless/ath/regd.c:155 ath_regd_init+0x30b
Pid: 12661, comm: firmware/carl91 2.6.33-rc5-wl #18
Call Trace:
[<>] ? warn_slowpath_common+0x76/0x8c
[<>] ? ar9170_reg_notifier+0x0/0x2d [carl9170usb]
[<>] ? ath_regd_init+0x30b/0x377 [ath]
[<>] ? ar9170_register+0x3b3/0x3ca [carl9170usb]
[...]
---[ end trace ]---
Note: Poland is just an example. But it is very likely
that more country codes are affected.
Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:22:01 +0000 (10:22 +0200)]
mac80211: remove get_tx_stats() driver op
get_tx_stats() driver operation is not currently used anywhere in mac80211
and there are no plans to use it in the not-so-near future. So it can go
without anyone missing it.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:21:53 +0000 (10:21 +0200)]
rt2x00: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Compile-tested only.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:21:46 +0000 (10:21 +0200)]
p54: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
p54 uses struct ieee80211_tx_queue_stats also internally, so create a new
identical struct p54_tx_queue_stats which the driver can use.
Compile-tested only.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:21:37 +0000 (10:21 +0200)]
iwlwifi: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Compile-tested only.
Cc: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 17:51:00 +0000 (19:51 +0200)]
b43legacy: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Compile-tested only.
Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 17:50:50 +0000 (19:50 +0200)]
b43: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Compile-tested only.
Cc: Stefano Brivio <stefano.brivio@polimi.it> Cc: Michael Buesch <mb@bu3sch.de> Cc: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:21:07 +0000 (10:21 +0200)]
ath5k: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Compile-tested only.
Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Nick Kossifidis <mickflemm@gmail.com> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:21:00 +0000 (10:21 +0200)]
ar9170: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
Because ar9170 uses ieee80211_tx_queue_stats internally, create a new
identical struct ar9170_tx_queue_stats which the driver can use.
Compile-tested only.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Sun, 7 Feb 2010 08:20:52 +0000 (10:20 +0200)]
mwl8k: remove get_tx_stats() mac80211 op
get_tx_stats() will be removed from mac80211.
mwl8k used struct ieee80211_tx_queue_stats internally to track the queue
lenght. Replace struct ieee80211_tx_queue_stats with a simple len field
in struct mwl8k_tx_queue. Limit and count fields seemed to be unused.
Compile-tested only.
Cc: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Sat, 6 Feb 2010 14:20:13 +0000 (15:20 +0100)]
mac80211: fix deauth race
When userspace requests a deauth while the
authentication work is pending in the auth
(not probe) state, we do not properly abort
the work and then things get confused.
Fix that and also improve the checks here
to include the correct virtual interface,
just in case two virtual interfaces would
ever try to connect to the same BSS.
Also fix a bug -- need to use list_del_rcu
instead of just list_del to free a work
item.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Samuel Ortiz [Fri, 5 Feb 2010 19:33:48 +0000 (11:33 -0800)]
iwlwifi: Send broadcast probe request only when asked to
When running directed active scans we currently end up sending both the SSID
probe requests and an additional broadcast one.
This is due to the fact that we always leave the probe request template SSID IE
length to 0. Instead we should set it to the first SSID to scan, and fill the
direct_scan array with the remaining SSIDs to scan for. This way we only send
what we've been asked to: a broadcast probe request when no directed scan is
requested, and directed probe requests otherwise.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 5 Feb 2010 19:33:47 +0000 (11:33 -0800)]
iwlwifi: Add chain_noise support for 6050
Existing iwl6050_ops->iwl6050_hcmd_utils structure had no pointers to chain
noise functions (gain_computation and chain_noise_reset). As it turns out,
by adding chain_noise_scale (see related patch), there is no need for separate
chain noise function, so simply use iwl6000_ops->iwl5000_hcmd_utils, and
remove those for 6050.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Cahill [Fri, 5 Feb 2010 19:33:46 +0000 (11:33 -0800)]
iwlwifi: Add chain noise scaling factor
6x50 device requires a different scaling factor for Rx gain values sent to
device via PHY_CALIBRATION_CMD (CHAIN_NOISE_GAIN_CMD). Rather than create
a new iwlXXXX_gain_computation() function, add new chain_noise_scale member
to struct iwl_cfg, and keep using iwl5000_gain_computation().
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Fri, 5 Feb 2010 10:45:06 +0000 (11:45 +0100)]
mac80211: fix bss_conf.dtim_period
In AP mode, the only mode where the parameter
is supposed to be valid, we never assign it!
Fix that to allow drivers to avoid parsing
the TIM IE for the value.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Holger Schurig [Thu, 4 Feb 2010 13:37:45 +0000 (14:37 +0100)]
libertas: don't retry commands
Retrying commands seldomly works, most often the firmware is in a
weird state anyway and needs the device to reset. So it's better
to report the broken state back to user-space.
Also rename command_timer_fn() into lbs_cmd_timeout_handler(),
which better reflect it's usage.
Signed-off-by: Holger Schurig <holgerschurig@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kalle Valo [Thu, 4 Feb 2010 13:33:25 +0000 (15:33 +0200)]
wl1251: fix txop unit
mac80211 uses unit units of 32 usec with txop but wl1251_acx_ac_cfg()
expects it to be usecs. This fortunately didn't cause any severe problems,
only that firmware was using incorrect WMM settings.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Randy Dunlap [Wed, 3 Feb 2010 23:31:07 +0000 (15:31 -0800)]
libertas/if_spi: needs linux/semaphore.h
libertas/if_spi.c needs to #include linux/semaphore.h to fix build errors:
drivers/net/wireless/libertas/if_spi.c:59: error: field 'spi_ready' has incomplete type
drivers/net/wireless/libertas/if_spi.c:60: error: field 'spi_thread_terminated' has incomplete type
drivers/net/wireless/libertas/if_spi.c:785: error: implicit declaration of function 'down_interruptible'
drivers/net/wireless/libertas/if_spi.c:787: error: implicit declaration of function 'up'
drivers/net/wireless/libertas/if_spi.c:834: error: implicit declaration of function 'down'
drivers/net/wireless/libertas/if_spi.c:943: error: implicit declaration of function 'sema_init'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Explicitely enable shared interrupt 2 for any core that didn't get a dedicated IRQ
anymore (fallthrough case) and for EXTIF cores to make gpio interrupts work.
Also remove a bogus comment.
Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Larry Finger [Wed, 3 Feb 2010 19:33:44 +0000 (13:33 -0600)]
b43/b43legacy: Wake queues in wireless_core_start
If b43 or b43legacy are deauthenticated or disconnected, there is a
possibility that a reconnection is tried with the queues stopped in
mac80211. To prevent this, start the queues before setting
STAT_INITIALIZED.
In b43, a similar change has been in place (twice) in the
wireless_core_init() routine. Remove the duplicate and add similar
code to b43legacy.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Wed, 3 Feb 2010 17:28:55 +0000 (09:28 -0800)]
mac80211: tear down all agg queues when restart/reconfig hw
When there is a need to restart/reconfig hw, tear down all the
aggregation queues and let the mac80211 and driver get in-sync to have
the opportunity to re-establish the aggregation queues again.
Need to wait until driver re-establish all the station information before tear
down the aggregation queues, driver(at least iwlwifi driver) will reject the
stop aggregation queue request if station is not ready. But also need to make
sure the aggregation queues are tear down before waking up the queues, so
mac80211 will not sending frames with aggregation bit set.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 3 Feb 2010 12:59:58 +0000 (13:59 +0100)]
mac80211: allow station add/remove to sleep
Many drivers would like to sleep during station
addition and removal, and currently have a high
complexity there from not being able to.
This introduces two new callbacks sta_add() and
sta_remove() that drivers can implement instead
of using sta_notify() and that can sleep, and
the new sta_add() callback is also allowed to
fail.
The reason we didn't do this previously is that
the IBSS code wants to insert stations from the
RX path, which is a tasklet, so cannot sleep.
This patch will keep the station allocation in
that path, but moves adding the station to the
driver out of line. Since the addition can now
fail, we can have IBSS peer structs the driver
rejected -- in that case we still talk to the
station but never tell the driver about it in
the control.sta pointer. If there will ever be
a driver that has a low limit on the number of
stations and that cannot talk to any stations
that are not known to it, we need to do come up
with a new strategy of handling larger IBSSs,
maybe quicker expiry or rejecting peers.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 3 Feb 2010 12:57:46 +0000 (13:57 +0100)]
mac80211: don't probe if we have probe response
We can now easily determine whether we already
have probe response information for the BSS we
are asked to connect to, in which case there's
little point in probing the BSS again.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 3 Feb 2010 09:24:30 +0000 (10:24 +0100)]
wireless: update radiotap parser
Upstream radiotap has adopted the namespace
proposal David Young made and I then took care
of, for which I had adapted the radiotap parser
as a library outside the kernel. This brings
the in-kernel parser up to speed.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 3 Feb 2010 09:47:55 +0000 (10:47 +0100)]
mac80211_hwsim: add fake hw scan handler
For debugging hardware scan trigger/complete
functionality, it was useful to have code in
hwsim that pretends to do a hardware scan.
This code could be extended to actually do the
scan, but for now it was sufficient for me to
only pretend. Since hwsim was written to ease
debugging, it only makes sense to add it to it
permanently.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 3 Feb 2010 09:22:31 +0000 (10:22 +0100)]
mac80211: fix deferred hardware scan requests
Reinette found the reason for the warnings that
happened occasionally when a hw-offloaded scan
finished; her description of the problem:
mac80211 will defer the handling of scan requests if it is
busy with management work at the time. The scan requests
are deferred and run after the work has completed. When
this occurs there are currently two problems.
* The scan request for hardware scan is not fully populated
with the band and channels to scan not initialized.
* When the scan is queued the state is not correctly updated
to reflect that a scan is in progress. The problem here is
that when the driver completes the scan and calls
ieee80211_scan_completed() a warning will be triggered
since mac80211 was not aware that a scan was in progress.
The reason is that the queued scan work will start
the hw scan right away when the hw_scan_req struct
has already been allocated. However, in the first
pass it will not have been filled, which happens
at the same time as setting the bits. To fix this,
simply move the allocation after the pending work
test as well, so that the first iteration of the
scan work will call __ieee80211_start_scan() even
in the hardware scan case.
Bug-identified-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Fri, 5 Feb 2010 19:40:00 +0000 (11:40 -0800)]
iwlwifi: Fix to set correct ht configuration
iwl_set_rxon_ht() only get called in iwl_post_associate(); which cause
possible incorrect ht configuration. Adding the call in iwl_mac_config() if
IEEE80211_CONF_CHANGE_CHANNEL flag is set to re-configure and send rxon
command.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211: Fix probe request filtering in IBSS mode
We only reply to probe request if either the requested SSID is the
broadcast SSID or if the requested SSID matches our own SSID. This
latter case was not properly handled since we were replying to different
SSID with the same length as our own SSID.
Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Wed, 3 Feb 2010 17:24:35 +0000 (18:24 +0100)]
ssb: Fix CONFIG_SSB_SDIOHOST typo
This fixes a CONFIG_SSB_SDIOHOST typo.
Signed-off-by: Michael Buesch <mb@bu3sch.de> Reported-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Tested-By: Albert Herranz <albert_herranz@yahoo.es> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Larry Finger [Tue, 2 Feb 2010 16:08:19 +0000 (10:08 -0600)]
b43: Fix throughput regression
Commit c7ab5ef9bcd281135c21b4732c9be779585181be entitled "b43: implement
short slot and basic rate handling" reduced the transmit throughput for
my BCM4311 device from 18 Mb/s to 0.7 Mb/s. The basic rate handling
portion is OK, the problem is in the short slot handling.
Prior to this change, the short slot enable/disable routines were never
called. Experimentation showed that the critical part was changing the
value at offset 0x0010 in the shared memory. This is supposed to contain
the 802.11 Slot Time in usec, but if it is changed from its initial value
of zero, performance is destroyed. On the other hand, changing the value
in the MMIO register corresponding to the Interframe Slot Time increased
performance from 18 to 22 Mb/s. A BCM4306/3 also shows dramatic
improvement of the transmit rate from 5.3 to 19.0 Mb/s.
Other changes in the patch include removal of the magic number for the
MMIO register, and allowing the slot time to be set for any PHY operating
in the 2.4 GHz band. Previously, the routine was executed only for G PHYs.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> [Any stable version back through 2.6.28] Signed-off-by: John W. Linville <linville@tuxdriver.com>
Some single chip family devices are sold in the market with
802.11n bonded out, these have no hardware capability for
802.11n but ath9k can still support them. These are called
AR2427.
Cc: stable@kernel.org Reported-by: Rolf Leggewie <bugzilla.kernel.org@rolf.leggewie.biz> Tested-by: Bernhard Reiter <ockham@raz.or.at> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Patch prevents call set_wep_key() with zero key length. That fix long
standing regression since commit c0380693520b1a1e4f756799a0edc379378b462a
"airo: clean up WEP key operations". Additionally print call trace when
someone will try to use improper parameters, and remove key.len = 0
assignment, because it is in not possible code path.
Reported-by: Chris Siebenmann <cks-rhbugzilla@cs.toronto.edu> Bisected-by: Chris Siebenmann <cks-rhbugzilla@cs.toronto.edu> Tested-by: Chris Siebenmann <cks@cs.toronto.edu> Cc: Dan Williams <dcbw@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pavel Roskin [Sun, 31 Jan 2010 02:37:24 +0000 (21:37 -0500)]
ath9k: fix access to freed data on unload
Calling ath_bus_cleanup() after ieee80211_free_hw() resulted in access
to common->bus_ops, which is already freed as part of the device data.
Remove the cleanup field in struct ath_bus_ops, as it was never used
properly. Remove ath_bus_cleanup(). Merge cleanup functions in place
of the ath_bus_cleanup() calls. Take care not to use any device data
after ieee80211_free_hw().
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 31 Jan 2010 22:25:24 +0000 (23:25 +0100)]
mac80211: fix sta lookup with AP VLAN interfaces and injected frames
When injecting frames, mac80211 currently looks for the first AP
interface that matches the source address of the injected frame.
This breaks when such a frame is directed at a STA that has been moved
to a VLAN. This patch fixes it by using sta_info_get_bss instead of
sta_info_get, which also finds stations belonging to a VLAN interface
of the same BSS as the AP interface.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
When an injected frame gets buffered for a powersave STA or filtered
and retransmitted, mac80211 attempts to parse the radiotap header
again, which doesn't work because it's gone at that point.
This patch adds a new flag for checking the availability of a radiotap
header, so that it only attempts to parse it once, reusing the tx info
on the next call to ieee80211_tx().
This fixes severe issues with rekeying in AP mode.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 31 Jan 2010 20:50:12 +0000 (21:50 +0100)]
mac80211: fix sta lookup for received action frames on an AP VLAN
When looking for a matching interface, __ieee80211_rx_handle_packet
loops over all active interfaces, looking for matching stations.
Because AP VLAN interfaces are not processed as part of this loop, it
needs to use sta_info_get_bss instead of sta_info_get in order to find
a STA that has been moved to a VLAN.
This fixes issues with aggregation setup/teardown.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pavel Roskin [Sun, 31 Jan 2010 00:55:09 +0000 (19:55 -0500)]
mac80211: reduce stack usage in sta_ht_capa_read()
The maximal size of the "ht_capa" file is 430 bytes. In most cases,
it's much shorter. Use a 512 byte long buffer. 1024 bytes is too much
and causes a warning with CONFIG_FRAME_WARN=1024.
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This adds a new regulatory hint to be used when we know all
devices have been disconnected and idle. This can happen
when we suspend, for instance. When we disconnect we can
no longer assume the same regulatory rules learned from
a country IE or beacon hints are applicable so restore
regulatory settings to an initial state.
Since driver hints are cached on the wiphy that called
the hint, those hints are not reproduced onto cfg80211
as the wiphy will respect its own wiphy->regd regardless.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
cfg80211: avoid flushing the global workqueue for core reg hints
When cfg80211 starts it will send a core regulatory hint. This is
sent to the global workqueue but we force processing of it by
flushing the global workqueue. The flushing was done since
cfg80211 needs last_request to always be populated.
Avoid flushing the global workqueue by processing the work
required immediately instead of putting it into a linked
list and processing it after the flush.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reinette Chatre [Thu, 21 Jan 2010 19:52:28 +0000 (11:52 -0800)]
iwlwifi: iwl_power_update_mode always hold mutex
iwl_power_update_mode expects to be called with mutex held, for example to
protect priv->vif. Only one caller currently does not do this, fix this.
Also, add a comment to iwl_power_update_mode to indicate this requirement.
Johannes Berg [Thu, 21 Jan 2010 19:47:59 +0000 (11:47 -0800)]
iwlwifi: fix typo in IWL_CCK_RATES_MASK
Due to a typo, the variable contains OFDM
rates as well. The only user doesn't care,
so this change doesn't really do anything
but fix up my confusion.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
projects / mv-sheeva.git / log