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iwlwifi: mvm: allow to disable beacon filtering for AP/GO interface

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When in AP mode we need to filter in beacons from other APs to update HT
operation mode. As a power optimization the beacons are filtered out when
there are no associated stations. As a result, when there are no
associated stations, we will not update the HT operation mode until a
station connects.
Add a debugfs parameter that allows to disable this optimization.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Andrei Otcheretianski 2016-01-26 18:12:28 +02:00 committed by Emmanuel Grumbach
parent d56a7801b5
commit c89e333d5e
4 changed files with 11 additions and 1 deletions
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3
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
View File

@ -1548,6 +1548,9 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
mvm->debugfs_dir,
&mvm->scan_iter_notif_enabled))
goto err;
if (!debugfs_create_bool("drop_bcn_ap_mode", S_IRUSR | S_IWUSR,
mvm->debugfs_dir, &mvm->drop_bcn_ap_mode))
goto err;
#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {

2
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
View File

@ -744,7 +744,7 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
* wake-ups.
*/
cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
if (mvmvif->ap_assoc_sta_count) {
if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) {
cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON);
IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n");
} else {

6
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -859,6 +859,12 @@ struct iwl_mvm {
u32 ciphers[6];
struct iwl_mvm_tof_data tof_data;
/*
* Drop beacons from other APs in AP mode when there are no connected
* clients.
*/
bool drop_bcn_ap_mode;
};
/* Extract MVM priv from op_mode and _hw */

1
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -492,6 +492,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
}
mvm->sf_state = SF_UNINIT;
mvm->cur_ucode = IWL_UCODE_INIT;
mvm->drop_bcn_ap_mode = true;
mutex_init(&mvm->mutex);
mutex_init(&mvm->d0i3_suspend_mutex);