- 09 Apr, 2012 40 commits
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Meenakshi Venkataraman authored
In the process, make iwlagn_fw_error a non-static function, as it is used by more than one file. Signed-off-by:
Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Johannes Berg authored
No other component is accessing it any more, so it can move to the correct place in priv. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Johannes Berg authored
The queue mapping is not only dynamic, it is also dependent on the uCode, as we can already see today with the dual-mode and non-dual-mode being different. Move the queue mapping out of the transport layer and let the higher layer manage it. Part of the transport configuration is how to set up the queues. Signed-off-by:
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Johannes Berg authored
As idle is just a deep powersave mode for the device, it will easily scan while idle since that turns off powersave. This reduces the number of commands sent to the device when scanning. Signed-off-by:
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Johannes Berg authored
This is not (no longer?) used by any device so just remove it. Signed-off-by:
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Johannes Berg authored
This is used only by 2000 class devices, but they all use it so remove the configuration parameter and hard-code the programming. Signed-off-by:
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Johannes Berg authored
There's no device using this mechanism. Signed-off-by:
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Johannes Berg authored
It talks about treating different uCode APIs as different pieces of hardware which really isn't how we handle things. Signed-off-by:
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Johannes Berg authored
A whole bunch of messages, even some recent ones, didn't include a trailing newline so add it. Signed-off-by:
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Johannes Berg authored
The calibration results all come in while we're waiting for the calibration complete notification. As a consequence, there's no need to install a global RX handler for them, we can use the newly extended notification wait framework for this and make the code easier to follow. It is now quite explicit that we are processing the calibration results while waiting for the complete notification, before this was implicit and developers had to know this to understand why we wait for the calibration complete notification and what happens while we wait. Signed-off-by:
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Johannes Berg authored
Sometimes, for example when we ask the uCode for calibration, we wait for the "complete" response while we also need the results that are sent in other, interim, notifications. Currently we handle this by installing an RX handler globally, but that isn't needed as this is the only time we want to use these notifications. So in order to be able to simplify at least future code that does the same, extend the notification wait framework to allow you to wait for multiple commands and decide based on the command whether the wait finished. While at it, also fix a race that can then become relevant -- if the wait function has returned true once it shouldn't be called again, today this can happen due to races between the triggering and the wakeup. Signed-off-by:
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Johannes Berg authored
The flow handler (hardware) can put multiple frames into a single RX buffer. To handle this, walk the RX buffer and check if there are multiple valid packets in it. To let the upper layer handle this correctly introduce rxb_offset() which is needed when we pass pages to mac80211 -- we need to know the offset into the page there. Also change the page handling scheme to use refcounting. Anyone who needs a page will "steal" it, which marks it as having been used & refcounts it. The RX handler then has to free its own reference and must not reuse the page. Finally, do not set the bit asking the FH to give us each packet in a single buffer. This really enables the feature. Signed-off-by:
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Wey-Yi Guy authored
get rid of un-needed parameter Change-Id: I992741e7382a3dbced7f8413bf1d5f301029d576 Signed-off-by:
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David Spinadel authored
Add iwl_phy_db structure and API. Signed-off-by:
David Spinadel <david.spinadel@intel.com> Signed-off-by:
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Luis R. Rodriguez authored
It has happened twice now where elaborate troubleshooting has undergone on systems where CONFIG_CFG80211_INTERNAL_REGDB [0] has been set but yet net/wireless/db.txt was not updated. Despite the documentation on this it seems system integrators could use some more help with this, so throw out a kernel warning at boot time when their database is empty. This does mean that the error-prone system integrator won't likely realize the issue until they boot the machine but -- it does not seem to make sense to enable a build bug breaking random build testing. [0] http://wireless.kernel.org/en/developers/Regulatory/CRDA#CONFIG_CFG80211_INTERNAL_REGDB Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Youngsin Lee <youngsin@qualcomm.com> Cc: Raja Mani <rmani@qca.qualcomm.com> Cc: Senthil Kumar Balasubramanian <senthilb@qca.qualcomm.com> Cc: Vipin Mehta <vipimeht@qca.qualcomm.com> Cc: yahuan@qca.qualcomm.com Cc: jjan@qca.qualcomm.com Cc: vthiagar@qca.qualcomm.com Cc: henrykim@qualcomm.com Cc: jouni@qca.qualcomm.com Cc: athiruve@qca.qualcomm.com Cc: cjkim@qualcomm.com Cc: philipk@qca.qualcomm.com Cc: sunnykim@qualcomm.com Cc: sskwak@qualcomm.com Cc: kkim@qualcomm.com Cc: mattbyun@qualcomm.com Cc: ryanlee@qualcomm.com Cc: simbap@qualcomm.com Cc: krislee@qualcomm.com Cc: conner@qualcomm.com Cc: hojinkim@qualcomm.com Cc: honglee@qualcomm.com Cc: johnwkim@qualcomm.com Cc: jinyong@qca.qualcomm.com Cc: stable@vger.kernel.org Signed-off-by:
Luis R. Rodriguez <mcgrof@frijolero.org> Signed-off-by:
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Chun-Yeow Yeoh authored
This patch is intended to solve the follwing issues in RANN propagation: [1] The interval in propagated RANN should be based on the interval of received RANN. [2] The aggregated path metric for propagated RANN is as received plus own link metric towards the transmitting mesh STA (not root mesh STA). [3] The comparison of path metric for RANN with same sequence number should be done before deciding whether to propagate or not. Signed-off-by:Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by:
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Larry Finger authored
The current version of rtlwifi for USB operations uses kmalloc to acquire a 32-bit buffer for each read of the device. When _usb_read_sync() is called with the rcu_lock held, the result is a "sleeping function called from invalid context" BUG. This is reported for two cases in https://bugzilla.kernel.org/show_bug.cgi?id=42775. The first case has the lock originating from within rtlwifi and could be fixed by rearranging the locking; however, the second originates from within mac80211. The kmalloc() call is removed from _usb_read_sync() by creating a ring buffer pointer in the private area and allocating the buffer data in the probe routine. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> [This version good for 3.3+ - different patch for 3.2 - 2.6.39] Signed-off-by:
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Chun-Yeow Yeoh authored
The HWMP sequence number of received RANN element is compared to decide whether to be propagated. The sequence number is required to covert from 32bit little endian data into CPUs endianness for comparison. The same applies to the RANN metric. Signed-off-by:
Javier Cardona <javier@cozybit.com> Signed-off-by:
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Ronald Wahl authored
When receiving DTIM we currently disable power save mode in the hardware unconditionally, i.e. also when the hardware was not sleeping. This causes trouble with at least one wireless chipset (Ralink RT3572). When the hardware is not sleeping and we send a wakeup command (e.g. this happens after a scan) then a significant decrease of the link quality or a disconnect may occur. Disabling power save mode only when it was enabled prevents this issue. Signed-off-by:
Ronald Wahl <ronald.wahl@raritan.com> Reviewed-by:
Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by:
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Felix Fietkau authored
Calling mod_timer from the rx/tx hotpath is somewhat expensive, and the timeout doesn't need to be so precise. Switch to a different strategy: Schedule the timer initially, store jiffies of all last rx/tx activity which would previously modify the timer, and let the timer re-arm itself after checking the last rx/tx timestamp. Make the session timers deferrable to avoid causing extra wakeups on systems running on battery. This visibly reduces CPU load under high network load on small embedded systems. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Felix Fietkau authored
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Felix Fietkau authored
Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by:
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Jakub Kicinski authored
With 9-letter driver names phy's number was truncated to two characters, which caused warnings when creating sysfs entries for leds on systems with multiple devices. Signed-off-by:
Jakub Kicinski <kubakici@wp.pl> Reviewed-by:
Stanislaw Gruszka <sgruszka@redhat.com> Acked-by:
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Joe Perches authored
Use a temporary to make the code a bit neater. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
Use the normal kernel facilities and use %pM to print the all zero mac address. Remove unnecessary line continuation. Signed-off-by:
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Larry Finger authored
Drivers that load firmware from their probe routine have problems with the latest versions of udev as they get timeouts while waiting for user space to start. The problem is fixed by using request_firmware_nowait() and delaying the start of mac80211 until the firmware is loaded. To prevent the possibility of the driver being unloaded while the firmware loading callback is still active, a completion queue entry is used. Also, to simplify the firmware loading procedure, this patch removes the old, unofficial and confusing fallback firmware names. However, they are still supported! So any user - who is still using them - is hereby advised to link/rename their old firmware filenames: isl3890usb to isl3886usb isl3887usb_bare to isl3887usb Signed-off-by:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
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Christian Lamparter authored
p54_unregister_common may now be called by the backend driver's remove routine, even if the ieee80211_hw device struct was never successfully registered. Signed-off-by:
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Marco Porsch authored
Signed-off-by:
Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by:
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Amitkumar Karwar authored
In this handler LOW_RSSI and HIGH_RSSI events are subscribed to FW using provided threshold value so that FW will monitor connection quality and trigger any of these events. Driver will notify cfg80211 about connection quality based on inputs from FW and provided hysteresis. Signed-off-by:
Amitkumar Karwar <akarwar@marvell.com> Signed-off-by:
Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by:
Bing Zhao <bzhao@marvell.com> Signed-off-by:
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Amitkumar Karwar authored
This patch adds the support for updating average signal information in dump_station(). Signed-off-by:
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Amitkumar Karwar authored
1) The wrapper function mwifiex_get_signal_info() is unnecessary. 2) As noise and signal vaules in private structure already get modified, we don't need to explicitly pass "struct mwifiex_ds_get_signal" to get it filled. Signed-off-by:
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Amitkumar Karwar authored
This enables user to dump station information using "iw dev <devname> station dump" command. Signed-off-by:
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Amitkumar Karwar authored
During wiphy registration signal_type is initialized to CFG80211_SIGNAL_TYPE_MBM. So convert signal strength from dBm to mBm. Also, the value is absolute. Make it negative before sending to cfg80211. Signed-off-by:
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Ben Greear authored
This lets the user know which interface has failed the check_sdata_in_driver check. Signed-off-by:
Ben Greear <greearb@candelatech.com> Signed-off-by:
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Rajkumar Manoharan authored
Signed-off-by:
Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by:
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Johannes Berg authored
Since some of the HT code pre-dates 802.11n-2009 some names are wrong. The one that bothers me most is that "HT operation" is called "HT information" in our code and that causes confusion. Rename "HT information" to "HT operation" and also the control_chan field to primary_chan to match the name used in the spec. Signed-off-by:
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Rajkumar Manoharan authored
Sometimes the probe frame (nullfunc) is stuck at the hw queue. so that the mac80211 terminates the connection as it wont see the tx status. Instead of waiting for long period for ack status, lets call flush to get nullfunc status immediately. It also helps to send the nullfunc till max tries reached. Signed-off-by:
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Rajkumar Manoharan authored
There might be latency at AP side to update TIM IE which could cause the station to send pspoll frame even after the wakeup. If the powersave is disabled, the nullfunc notification alone is sufficient to receive frames from the AP. And if the pspoll frame was already sent, no need to resend the frame till it was acked by AP. Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by:
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Rajkumar Manoharan authored
In the experiment with Azimuth ADEPT-n testbed where the APs transmit power was reduced to 25% and the signal strength was futher attenuated by 20dB and induced a path loss of ~7dB, the station was reporting beacon losses and the following issue were observed. * rx clear is stuck at low for more than 300ms * dcu chain and complete state is stuck at one of the hang signature This patch triggers the hang detection logic that recovers the chip from any of the above conditions. As the issue was originally reported in ChromeOs with AR9382 chips, this detection logic is enabled only for AR9380/2 chips. Cc: Paul Stewart <pstew@google.com> Reported-by:
Gary Morain <gmorain@google.com> Signed-off-by:
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Rajkumar Manoharan authored
This patch improves ANI operations by switching among the immunity levels based on PHY errors and beacon rssi which will adjust receiver desensitizing parameters. The changes are * Configure the Weak Signal Detection based on current immunity value. * At highest OFDM immunity level poor performance was observed with strong interference. By tuning the FIR step and spur immunity levels and not changing any weak signal detection thresholds at any level helped to improve the performance. * ANI took long time to recover back to lower immunity levels on heavy data load. As the listen time got reset to zero before reaching to the 5x of aniperiod, the immunity level is not lowering back even without any interference. This patch fix that. Cc: Paul Stewart <pstew@google.com> Cc: Susinder Gulasekaran <susinder@qca.qualcomm.com> Signed-off-by:
Suresh Chandrasekaran <csuresh@qca.qualcomm.com> Signed-off-by:
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