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path: root/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
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2016-07-06iwlwifi: mvm: change scan timeout to a delayed workLuca Coelho1-8/+10
Some transports may sleep when writing to registers, which is done when calling iwl_force_nmi(). So we can't call iwl_force_nmi() in a timer context. To solve that, convert the scan timeout timer to a delayed work. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-06-10iwlwifi: mvm: increase scan timeout to 20 secondsLuca Coelho1-1/+1
The 16 seconds timeout we were using turned out to be too short. Recalculations by system show that the total time in both bands should be < 18.5 seconds, even in the slowest cases (e.g. DCM P2P with DTIM=2). Rounding it up to 20 seconds for a bit more safety. Fixes: 728e825f81b1 ("iwlwifi: mvm: add a scan timeout for regular scans") Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-04-12cfg80211: remove enum ieee80211_bandJohannes Berg1-18/+18
This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-03-30iwlwifi: mvm: add a scan timeout for regular scansLuca Coelho1-0/+21
If something goes wrong with the firmware and we never get a scan complete notification, we stay stuck forever. In order to avoid this situation, add a timeout and trigger an NMI if it expires before receiving the notification., so we can clean things up. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30iwlwifi: mvm: set aux STA ID in scan configDavid Spinadel1-0/+1
Auxilary station ID in flag in scan config command wasn't set although we set the station ID. Add the flag. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-27iwlwifi: mvm: handle pass all scan reportingLuca Coelho1-5/+31
The firmware doesn't send match found notifications when no matchsets are passed. This makes sense because if there are no matchsets, nothing can be matched. But the nl80211 API should report when there are results available, even if no matchsets were passed. To handle this, we can use the firmware's ITERATION_COMPLETE reporting, which will send us notifications every time it completed a scheduled scan iteration. Then we can set a flag when we received beacons and use that to report that results are available. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-27Merge tag 'iwlwifi-for-kalle-2016-02-15' into HEADEmmanuel Grumbach1-0/+4
These are a few fixes for the current cycle. 3 out of the 5 patches fix a bugzilla. * fix a race that users reported when we try to load the firmware and the hardware rfkill interrupt triggers at the same time. * Luca fixes a very visible bug in scheduled scan: our firmware doesn't support scheduled scan with no profile configured and the supplicant sometimes requests such scheduled scans. * build system fix * firmware name update for 8265 * typo fix in return value
2016-02-15iwlwifi: mvm: don't allow sched scans without matches to be startedLuca Coelho1-0/+4
The firmware can perform a scheduled scan with not matchsets passed, but it can't send notification that results were found. Since the userspace then cannot know when we got new results and the firmware wouldn't trigger a wake in case we are sleeping, it's better not to allow scans without matchsets. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=110831 Cc: <stable@vger.kernel.org> [3.17+] Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-01iwlwifi: mvm: add debug print if scan config is ignoredMax Stepanov1-1/+4
Print a debug message in iwl_mvm_config_scan() if a scan configuration data is decided not to be sent to FW. Signed-off-by: Max Stepanov <Max.Stepanov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-01iwlwifi: mvm: Do not switch to D3 image on suspendMatti Gottlieb1-2/+2
Currently when the driver is configured with wowlan parameters, and enters D3 mode, the driver switches the FW image to D3, and when it exists suspend, it reloads the D0 image. If the firmware supports the consolidation of the D0 & D3 images there is no need to load the D3 image on suspend, and no need to reload the D0 image on resume. Do not switch images on suspend / resume, for firmwares that support consolidated images. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-01-07iwlwifi: mvm: fix extended dwell timeDavid Spinadel1-6/+7
FW adds 10 msec for every dwell time in low band, so we need to set 10 msec less. Don't use extended dwell time when fragmented scan is needed because FW adds 3 msec per probe and it can easily exceed max out of channel time. Fixes: c3e230b167a9 ("iwlwifi: mvm: add extended dwell time") Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-12-20iwlwifi: mvm: add extended dwell timeDavid Spinadel1-10/+31
When doing active scan on crowded channels we are likely to miss probe responses due to collisions. To overcome this issue we use an extended dwell time on channels 1, 6 and 11; this dwell time is set to 100. In case of fragmented scan extended dwell time is the maximum out of channel time - 44 msec. Fragmented active scan will be addressed later. Extended dwell time isn't used in sched scan or p2p find. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-12-20iwlwifi: change the Intel Wireless email addressEmmanuel Grumbach1-1/+1
ilw@linux.intel.com is not available anymore. linuxwifi@intel.com should be used instead. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-12-13iwlwifi: mvm: configure scheduled scan according to traffic conditionsAvraham Stern1-22/+21
Change scan configuration (dwell time, suspend time etc.) according to traffic conditions. This is useful for scans that are managed by the FW (e.g. scheduled scan). Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-12-01iwlwifi: mvm: fix incorrect fallthrough in iwl_mvm_check_running_scans()Nicholas Krause1-1/+1
In the iwl_mvm_check_running_scans() we were mistakenly ignoring the value returned by iwl_mvm_scan_stop() for scheduled scans and falling thorugh to the next case, which caused us to always return zero. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-11-26iwlwifi: mvm: ignore LMAC scan notifications when running UMAC scansLuca Coelho1-0/+7
If the firmware sends LMAC scan notifications while a UMAC scan is running, just WARN and ignore it, otherwise the scanning state gets messed up. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-11-26iwlwifi: mvm: Configure fragmented scan for scheduled scanAvraham Stern1-1/+6
Configure the FW to use fragmented scan when the traffic load is high or low latency traffic is on. This is useful for scans that are managed by the FW (e.g. scheduled scan). Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-11-18iwlwifi: move under intel vendor directoryKalle Valo1-0/+1552
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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