From be681c7d103c4b3df5c51acaba5a578002a16488 Mon Sep 17 00:00:00 2001 From: Avri Altman Date: Thu, 18 Jun 2015 06:39:41 +0300 Subject: [PATCH] iwlwifi: mvm: revert to our old skip over dtim policy Our firmware scheduler used to suffer from false wake-up on 500 time units. We had to came up with a formula to address this buggy behavior. Now that our firmware is fixed, we can go back to our old policy. Signed-off-by: Avri Altman Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/power.c | 28 ++---------------------- 1 file changed, 2 insertions(+), 26 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c index 506294fc2f87..c4e08903366c 100644 --- a/drivers/net/wireless/iwlwifi/mvm/power.c +++ b/drivers/net/wireless/iwlwifi/mvm/power.c @@ -288,27 +288,6 @@ static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm, return true; } -static int iwl_mvm_power_get_skip_over_dtim(int dtimper, int bi) -{ - int numerator; - int dtim_interval = dtimper * bi; - - if (WARN_ON(!dtim_interval)) - return 0; - - if (dtimper == 1) { - if (bi > 100) - numerator = 408; - else - numerator = 510; - } else if (dtimper < 10) { - numerator = 612; - } else { - return 0; - } - return max(1, (numerator / dtim_interval)); -} - static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif) { struct ieee80211_chanctx_conf *chanctx_conf; @@ -378,11 +357,8 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, if (!radar_detect && (dtimper < 10) && (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP || mvm->cur_ucode == IWL_UCODE_WOWLAN)) { - cmd->skip_dtim_periods = - iwl_mvm_power_get_skip_over_dtim(dtimper, bi); - if (cmd->skip_dtim_periods) - cmd->flags |= - cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); + cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); + cmd->skip_dtim_periods = 3; } if (mvm->cur_ucode != IWL_UCODE_WOWLAN) { -- 2.20.1