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iwlwifi: mvm: revert to our old skip over dtim policy

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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 <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Avri Altman 2015-06-18 06:39:41 +03:00 committed by Emmanuel Grumbach
parent bd7fc617af
commit be681c7d10
1 changed files with 2 additions and 26 deletions
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28
drivers/net/wireless/iwlwifi/mvm/power.c
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@ -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) {