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iwlwifi: mvm: BT Coex - set low latency vif as primary

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If a vif is in low latency mode, it should be in primary
channel.
Also tell BT Coex about the change when a vif enters or
exits low latency mode.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-01-15 16:57:54 +02:00
parent 1fb184b4a4
commit 0ee5bcdd77
2 changed files with 27 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/net/wireless/iwlwifi/mvm/bt-coex.c
View File

@ -542,6 +542,7 @@ struct iwl_bt_iterator_data {
bool reduced_tx_power;
struct ieee80211_chanctx_conf *primary;
struct ieee80211_chanctx_conf *secondary;
bool primary_ll;
};
static inline
@ -590,7 +591,14 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
return;
}
/* SoftAP / GO will always be primary */
/* low latency is always primary */
if (iwl_mvm_vif_low_latency(mvmvif)) {
data->primary_ll = true;
data->secondary = data->primary;
data->primary = chanctx_conf;
}
if (vif->type == NL80211_IFTYPE_AP) {
if (!mvmvif->ap_ibss_active)
return;
@ -601,9 +609,17 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
if (chanctx_conf == data->primary)
return;
/* downgrade the current primary no matter what its type is */
data->secondary = data->primary;
data->primary = chanctx_conf;
if (!data->primary_ll) {
/*
* downgrade the current primary no matter what its
* type is.
*/
data->secondary = data->primary;
data->primary = chanctx_conf;
} else {
/* there is low latency vif - we will be secondary */
data->secondary = chanctx_conf;
}
return;
}
@ -613,7 +629,10 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
if (!vif->bss_conf.assoc)
return;
/* STA / P2P Client, try to be primary if first vif */
/*
* STA / P2P Client, try to be primary if first vif. If we are in low
* latency mode, we are already in primary and just don't do much
*/
if (!data->primary || data->primary == chanctx_conf)
data->primary = chanctx_conf;
else if (!data->secondary)

3
drivers/net/wireless/iwlwifi/mvm/utils.c
View File

@ -550,5 +550,8 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
res = iwl_mvm_update_quotas(mvm, NULL);
if (res)
return res;
iwl_mvm_bt_coex_vif_change(mvm);
return iwl_mvm_power_update_mode(mvm, vif);
}