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path: root/drivers/net/wireless/iwlwifi/mvm/scan.c
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2015-04-19iwlwifi: mvm: fix scan iteration complete notification handlingAvraham Stern
Scan iteration complete notification handling uses the wrong FW API version (version 2 instead of version 3). Fix that by removing version 2 API which is no longer used, and using only the updated version. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Reviewed-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-30iwlwifi: mvm: Clean up UMAC scan UIDs in the reset and drv_stop flowsAlexander Bondar
In the reset flow, the driver cancels ongoing scan and sends scan complete notification to mac80211. However it does not clean its UID. Add cleaning scan UID for the ongoing scan. Loop over all other UIDs to make sure there's nothing left there and warn if any is found. Signed-off-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-26iwlwifi: mvm: add delay to scheduled scanLuciano Coelho
Add support for delaying the start of a scheduled scan (or a WoWLAN net-detect scan). Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-26iwlwifi: mvm: inform mac80211 about umac scans that was aborted by restartDavid Spinadel
In nic restart flow we inform mac80211 that scan was aborted, but it was based only on scan_status which is not set by UMAC scan. Fix that. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-12Merge branch 'iwlwifi-fixes' into iwlwifi-nextEmmanuel Grumbach
2015-03-02iwlwifi: mvm: don't override passive dwell in case of fragmented scanDavid Spinadel
Currently scan params structure has only active or passive dwell time fields, passive one is used for fragmented scans too. FW needs the passive dwell time even when performing fragmented scan for calculating time between channels. Add a separate parameter for fragmented dwell time and pass both fragmented and passive to FW. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-02iwlwifi: mvm: use only 40 ms for fragmented scanDavid Spinadel
20 ms fragments are no longer required by system. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-03-01iwlwifi: mvm: remove deprecated scan API codeLuciano Coelho
The legacy scan API is deprecated and not used anymore with 10 and higher firmware versions. Since we deprecated firmware version 9, we can remove a whole lot of unused code. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-02-23iwlwifi: mvm: call ieee80211_scan_completed() even if scan abort failsLuciano Coelho
A scan abort command failure is not that unusual, since we may try to send it after the scan has actually completed but before we received the completed notification from the firmware. The scan abort can also fail for other reasons, such as a timeout. In such cases, we should clear things up so the next scans will work again. To do so, don't return immediately in case of failures, but call ieee80211_scan_completed() and clear the scan_status flags. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-02-01iwlwifi: mvm: Fix building channels in scan_config_cmdIlan Peer
Use the chanel hw_value and not the center frequency when building channel array for scan_config_cmd. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-02-01iwlwifi: mvm: Enable EBS also in single scan on umac interfaceHaim Dreyfuss
Enable EBS on one shot scans if supported by FW. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-02-01iwlwifi: mvm: Fix a few EBS error handling bugsHaim Dreyfuss
Last EBS status wasn't set to success in the initialization, which caused the first scan to be without EBS. Fix that. When EBS is not enabled by the driver, the FW still sends ebs_status success, which can override EBS failure state. Consider only EBS failures, to avoid such override. Last_ebs_success is set back to true upon disconnection. Last_ebs_success wasn't set in umac scan abort flow, fix that too. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-nextEmmanuel Grumbach
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Conflicts: drivers/net/wireless/iwlwifi/iwl-fw-file.h drivers/net/wireless/iwlwifi/mvm/scan.c
2015-01-22iwlwifi: mvm: scan dwell time correctionsDavid Spinadel
Use only basic dwell time (10 ms for active scan and 110 for passive), regardless of the number of the probes and the band, if it is supported by the FW. The FW will add 3 ms for each probe sent and 10 ms for low band channels. Add a TLV flag to indicate such support in FW. This fix is needed to fix few bugs regarding scans that take too much time. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22iwlwifi: mvm: set max_out_time equal to frag_passive_dwell in fragmented scanHaim Dreyfuss
Fragmented scan should be applied for all channels, passive and active. When scanning on passive channels the firmware uses frag_passive_dwell to define the maximum continuous scan time before returning to the operating channel. On active channels max_out_time is the parameter used by the firmware to define the maximum time allowed out of the operating channel. Since active channels' scan should also be fragmented set max_out_time equal to frag_passive_dwell. In addition: - Set max_out_time and suspend_time if the firmware doesn't support fragmented scan to avoid unexpected behavior. - Adjust max_out_time for second level of scan precedence. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-22iwlwifi: mvm: Add debugfs entry to enable scan offload notificationAlexander Bondar
This option enables scan offload iteration complete notification from firmware which includes the last iteration's status and the scanned channels from the current iteration. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-18iwlwifi: mvm: abort scheduled scan upon RFKILLEmmanuel Grumbach
When we have an active scheduled scan, and the RFKILL interrupt kicks in, the stack will cancel the scheduled scan as part of the down flow. But cancelling scheduled scan usually implies sending a command to the firwmare which has been killed as part of the RFKILL interrupt handling. Because of that, we returned an error to mac80211 when it asked to stop the scheduled scan and didn't notify the end of the scheduled scan. Besides a fat warning, this led to a situation in which cfg80211 would refuse any new scan request. To disentangle this, fake that the scheduled scan has been stopped without sending the command to the firwmare, return 0 after having properly let cfg80211 know that the scan has been cancelled. This is basically the same as: commit 9b520d84957d63348e87c0f2cbd21d86e1e8f2f2 Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Date: Tue Nov 4 15:54:11 2014 +0200 iwlwifi: mvm: abort scan upon RFKILL This code existed but not for all the different FW APIs we support. Fix this. but for the scheduled scan case. Link: http://permalink.gmane.org/gmane.linux.kernel.wireless.general/133232 Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-12iwlwifi: mvm: fix EBS on single scanDavid Spinadel
EBS error detection isn't supported by all FWs, so turn it on only if the FW advertises such support. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05iwlwifi: mvm: scan dwell time correctionsDavid Spinadel
Use only basic dwell time (10 ms for active scan and 110 for passive), regardless of the number of the probes and the band, if it is supported by the FW. The FW will add 3 ms for each probe sent and 10 ms for low band channels. Add a TLV flag to indicate such support in FW. This fix is needed to fix few bugs regarding scans that take too much time. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-01-05iwlwifi: mvm: add a flag to enable match found notificationDavid Spinadel
Add a flag that enables match found notification to align with FW API change. Cc: <stable@vger.kernel.org> [3.17+] Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28iwlwifi: mvm: Alter passive scan fragmentation parameters in case of multi-MACHaim Dreyfuss
Make passive scan fragmentation depends on the number of active interfaces. In case of single-MAC, make passive scan less fragmented. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28iwlwifi: mvm: Configure EBS scan ratioHaim Dreyfuss
This configuration defines the ratio between number of scan iterations where EBS is involved to those where it is not. This configuration was left unconfigured due to inaccurate documentation. Fix documentation as well. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-28iwlwifi: mvm: support LnP 1x1 antenna configurationMoshe Harel
The antenna configuration has to be read also from OTP Currently read only from FW image Guideline: An antenna exists only if appears both in FW image & NVM Signed-off-by: Moshe Harel <moshe.harel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24iwlwifi: mvm: remove warning on unknown scan completeDavid Spinadel
Remove warning on scan complete with unknown ID, since this scan could be already cleared in abort flow. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-24iwlwifi: mvm: use unsigned for ssid_bitmapJohannes Berg
The ssid_bitmap should be unsigned, though it doesn't matter much as the high bits aren't used. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23iwlwifi: mvm: support random MAC address for scanningJohannes Berg
For background and scheduled scan, using the new unified scan API, support random MAC address scanning. Unfortunately, the firmware right now doesn't support randomising itself, so for now do it on the host - we'll change this once the firmware supports randomising the address for each scan iteration using the address/mask. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23iwlwifi: mvm: go to umac scan even if lmac tlv bit is onDavid Spinadel
LMAC TLV bit may be on in FWs that support UMAC scan; so check for UMAC TLV bit first. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23iwlwifi: mvm: implement UMAC scan APIDavid Spinadel
This API uses second CPU scan commands, and can support multiple simultaneous scans. Adding the new API, and adding new mechanisms to deal with up to 8 simultaneous scans instead of the old scan status. New scan API requires scan configuration for default scan parameters, adding it in _up flow. Also updating scan configuration after updating valid scan antennas via debugfs. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-23iwlwifi: mvm: Insert DS Parameter Set placeholder in probesAndrei Otcheretianski
Since it's too complicated for the fw to insert a DS Parameter Set element in the middle of the frame, it was decided that it should be done by the host. The fw will only parse the frame and update the current channel field. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-19Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-11-11iwlwifi: mvm: abort scan upon RFKILLEmmanuel Grumbach
This code existed but not for all the different FW APIs we support. Fix this. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29iwlwifi: mvm: unref SCAN ref on scan completionEliad Peller
The scan reference wasn't released in case of offloaded scan, causing the refcount to go wrong and prevent the device from going into d0i3. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29iwlwifi: mvm: fix scan condition iteratorDavid Spinadel
Scan condition iterator assumes that an interface is associated if phy_ctxt is assigned, but this isn't the sutuation in P2P device. OTOH P2P device is never associated so we can simply ignore it. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-29iwlwifi: mvm: spin off a function to start scan offloadLuciano Coelho
The net-detect feature will require a scan offload to be started in the same way it is done now for scheduled scan. Spin a new function off of the sched_scan_start op code for reuse. Additionally, restructure the function a bit for more readability. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-10-23iwlwifi: mvm: BT coex - fix BT prio for probe requestsEmmanuel Grumbach
The probe requests sent during scan must get BT prio 3. Fix that. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-21iwlwifi: mvm: Refactor and fix max probe len computationAndrei Otcheretianski
Move iwl_mvm_max_scan_ie_len function to scan.c and fix the implementation to conform with the LMAC scan API. Since the correct implementation would leave us with unacceptably tiny probes, add a workaround which returns a larger value. In current implementation it's possible that unified_scan_lmac and unified_sched_scan_lmac would return -ENOBUFS. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-16iwlwifi: mvm: Set RRM_ENABLED bit in scan commandsAndrei Otcheretianski
Set RRM_ENABLED (bit 6) flag in scan commands. When this flag is set the fw will add WFA vendor-specific TPC report and DS parameter set IEs into probe requests. This bit is set for SCAN_OFFLOAD_REQUEST_CMD(0x51). Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Assaf Krauss <assaf.krauss@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14iwlwifi: mvm: reduce active dwell timeDavid Spinadel
Reduce basic active dwell time from 30 ms on 2.4 GHz and 20 on 5.2 to 20 on 2.4 and 10 on 5.2. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03iwlwifi: add Intel Mobile Communications copyrightJohannes Berg
Our legal structure changed at some point (see wikipedia), but we forgot to immediately switch over to the new copyright notice. For files that we have modified in the time since the change, add the proper copyright notice now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03iwlwifi: mvm: enable passive fragmented scan changesDavid Spinadel
Enable fragmented scan that was diabled due to a FW bug. New fixed FWs use a TLV bit to advertise fragmented scan support. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: fix endianity in scan commandDavid Spinadel
Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: init lmac scan commandDavid Spinadel
Initialize LMAC scan command. Fix EBS flag to be dependant on TLV flg and fix other bugs. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07iwlwifi: mvm: add unified LMAC scan APIDavid Spinadel
Add new scan API that uses the same command 0x51 for both regular and sched scan. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-25Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
2014-06-25mac80211: split sched scan IEsDavid Spinadel
Split sched scan IEs to band specific and not band specific blocks. Common IEs blocks may be sent to the FW once per command, instead of per band. This allows optimization of size of the command, which may be required by some drivers (eg. iwlmvm with newer firmware version). As this changes the mac80211 API, update all drivers to use the new version correctly, even if they don't (yet) make use of the split data. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-06-24iwlwifi: mvm: don't use hardcoded num of scan channelsDavid Spinadel
Use num of scan channels as advertised by fw TLV. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-nextEmmanuel Grumbach
2014-06-24iwlwifi: mvm: add back support for low-priority scanJohannes Berg
The low-priority scan feature can be useful, e.g. for OBSS scans (if those are required by the AP); add back support for it, restoring the maximum out time to the value it was for low-priority scan before that was removed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24iwlwifi: mvm: use ksize to memset scan_commandDavid Spinadel
Use ksize to get scan command size instead of calculating it, to avoid nasty bugs. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24iwlwifi: mvm: rework sched scan channel configurationEliad Peller
The current sched scan channel configuration code configures all the supported channels for scanning. However, this can result in SYSASSERT in some cases, when the configured channel is disabled. Instead, configure only the channels given in the req struct, and set the channel_count field appropriately. While on it, change the code to use channel->hw_value instead of recalculating the channel number. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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