1. 05 Apr, 2017 7 commits
  2. 22 Mar, 2017 2 commits
  3. 20 Mar, 2017 30 commits
  4. 16 Mar, 2017 1 commit
    • Mohammed Shafi Shajakhan's avatar
      ath10k: fix fetching channel during potential radar detection · a28f6f27
      Mohammed Shafi Shajakhan authored
      Fetch target operating channel during potential radar detection when
      the interface is just brought up, but no channel is assigned from
      userspace. In this scenario rx_channel may not be having a valid pointer
      hence fetch the target operating channel to avoid warnings as below
      which can be triggered by the commands with DFS testing over longer run
      
      comamnds:
      iw wlan1 set type mesh
      ifconfig wlan1 up (valid tgt_oper_chan only)
      iw wlan1 cac trigger freq 5260 HT20 (valid rx_channel, tgt_oper_chan)
      iw wlan1 cac trigger freq 5280 HT20
      iw wlan1 cac trigger freq 5300 HT20
      
      Once the CAC expires, current channel context will be removed and
      we are only left with the fallback option of using 'target operating
      channel'
      
      Firmware and driver log:
      ath: phy1: DFS: radar found on freq=5300: id=1, pri=1125, count=5,
      count_false=4
      ath: phy1: DFS: radar found on freq=5260: id=5, pri=3151, count=6,
      count_false=11
      ath: phy1: DFS: radar found on freq=5280: id=1, pri=1351, count=6,
      count_false=4
      ath: phy1: DFS: radar found on freq=5300: id=1, pri=1125, count=5,
      count_false=4
      ath10k_pci 0001:01:00.0: failed to derive channel for radar pulse,
      treating as radar
      ath10k_pci 0001:01:00.0: failed to derive channel for radar pulse,
      treating as radar
      
      Call trace:
      
      WARNING: CPU: 1 PID: 2145 at
      backports-20161201-3.14.77-9ab3068/net/wireless/chan.c:265
      cfg80211_set_dfs_state+0x3c/0x88 [cfg80211]()
      
       Workqueue: phy1 ieee80211_dfs_radar_detected_work
      [mac80211]
      [<c0320770>] (warn_slowpath_null) from [<bf79b90c>]
      (cfg80211_set_dfs_state+0x3c/0x88 [cfg80211])
      [<bf79b90c>] (cfg80211_set_dfs_state [cfg80211]) from
      [<bf79697c>] (cfg80211_radar_event+0xc4/0x140 [cfg80211])
      [<bf79697c>] (cfg80211_radar_event [cfg80211]) from
      [<bf83c058>] (ieee80211_dfs_radar_detected_work+0xa8/0xb4 [mac80211])
      [<bf83c058>] (ieee80211_dfs_radar_detected_work
      [mac80211]) from [<c0339518>] (process_one_work+0x298/0x4a4)
      Signed-off-by: default avatarMohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
      a28f6f27