package/kernel/mac80211/patches/308-ath10k-Fix-sending-NULL-Qos-NULL-data-frames-for-QCA.patch

   1 From: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
   2 Date: Thu, 23 Jun 2016 22:10:01 +0530
   3 Subject: [PATCH] ath10k: Fix sending NULL/ Qos NULL data frames for
   4  QCA99X0 and later
   5
   6 For chipsets like QCA99X0, IPQ4019 and later we are not getting proper
   7 NULL func status (always acked/successs !!) when hostapd does a
   8 PROBE_CLIENT via nullfunc frames when the station is powered off
   9 abruptly (inactive timer probes client via null func after the inactive
  10 time reaches beyond the threshold). Fix this by disabling the workaround
  11 (getting the ACK status of NULL func frames by sending via HTT mgmt-tx
  12  path) introduced by the change ("ath10k: fix beacon loss handling ")
  13 for QCA99X0 and later chipsets. The normal tx path provides the proper
  14 ACK status for NULL data frames. As of now disable this workaround for
  15 chipsets QCA99X0 and later, once the 10.1 firmware is obselete we can
  16 completely get rid of this workaround for all the chipsets
  17
  18 Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
  19 Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
  20 ---
  21
  22 --- a/drivers/net/wireless/ath/ath10k/core.c
  23 +++ b/drivers/net/wireless/ath/ath10k/core.c
  24 @@ -181,6 +181,7 @@ static const struct ath10k_hw_params ath
  25                         .board = QCA99X0_HW_2_0_BOARD_DATA_FILE,
  26                         .board_size = QCA99X0_BOARD_DATA_SZ,
  27                         .board_ext_size = QCA99X0_BOARD_EXT_DATA_SZ,
  28 +                       .disable_null_func_workaround = true,
  29                 },
  30         },
  31         {
  32 @@ -204,6 +205,7 @@ static const struct ath10k_hw_params ath
  33                         .board = QCA9984_HW_1_0_BOARD_DATA_FILE,
  34                         .board_size = QCA99X0_BOARD_DATA_SZ,
  35                         .board_ext_size = QCA99X0_BOARD_EXT_DATA_SZ,
  36 +                       .disable_null_func_workaround = true,
  37                 },
  38         },
  39         {
  40 @@ -262,6 +264,7 @@ static const struct ath10k_hw_params ath
  41                         .board = QCA4019_HW_1_0_BOARD_DATA_FILE,
  42                         .board_size = QCA4019_BOARD_DATA_SZ,
  43                         .board_ext_size = QCA4019_BOARD_EXT_DATA_SZ,
  44 +                       .disable_null_func_workaround = true,
  45                 },
  46         },
  47  };
  48 --- a/drivers/net/wireless/ath/ath10k/core.h
  49 +++ b/drivers/net/wireless/ath/ath10k/core.h
  50 @@ -750,6 +750,12 @@ struct ath10k {
  51                         const char *board;
  52                         size_t board_size;
  53                         size_t board_ext_size;
  54 +                       /* Workaround of sending NULL data frames via
  55 +                        * HTT mgmt TX and getting the proper ACK status does
  56 +                        * not works for chipsets QCA99X0 and later, while
  57 +                        * Tx data path reports the ACK status properly.
  58 +                        */
  59 +                       bool disable_null_func_workaround;
  60                 } fw;
  61         } hw_params;
  62
  63 --- a/drivers/net/wireless/ath/ath10k/mac.c
  64 +++ b/drivers/net/wireless/ath/ath10k/mac.c
  65 @@ -3253,6 +3253,7 @@ ath10k_mac_tx_h_get_txmode(struct ath10k
  66          * mode though because AP don't sleep.
  67          */
  68         if (ar->htt.target_version_major < 3 &&
  69 +           !ar->hw_params.fw.disable_null_func_workaround &&
  70             (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
  71             !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
  72                       ar->running_fw->fw_file.fw_features))