mac80211: add boilerplate code for start / stop NAN
This code doesn't do much besides allowing to start and stop the vif. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -3420,6 +3420,9 @@ enum ieee80211_reconfig_type {
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* synchronization which is needed in case driver has in its RSS queues
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* pending frames that were received prior to the control path action
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* currently taken (e.g. disassociation) but are not processed yet.
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*
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* @start_nan: join an existing NAN cluster, or create a new one.
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* @stop_nan: leave the NAN cluster.
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*/
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struct ieee80211_ops {
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void (*tx)(struct ieee80211_hw *hw,
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@ -3655,6 +3658,12 @@ struct ieee80211_ops {
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void (*wake_tx_queue)(struct ieee80211_hw *hw,
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struct ieee80211_txq *txq);
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void (*sync_rx_queues)(struct ieee80211_hw *hw);
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int (*start_nan)(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct cfg80211_nan_conf *conf);
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int (*stop_nan)(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif);
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};
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/**
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@ -3,6 +3,7 @@
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*
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* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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* Copyright 2013-2015 Intel Mobile Communications GmbH
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* Copyright (C) 2015-2016 Intel Deutschland GmbH
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*
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* This file is GPLv2 as found in COPYING.
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*/
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@ -152,6 +153,39 @@ static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
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ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
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}
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static int ieee80211_start_nan(struct wiphy *wiphy,
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struct wireless_dev *wdev,
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struct cfg80211_nan_conf *conf)
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{
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struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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int ret;
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mutex_lock(&sdata->local->chanctx_mtx);
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ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
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mutex_unlock(&sdata->local->chanctx_mtx);
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if (ret < 0)
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return ret;
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ret = ieee80211_do_open(wdev, true);
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if (ret)
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return ret;
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ret = drv_start_nan(sdata->local, sdata, conf);
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if (ret)
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ieee80211_sdata_stop(sdata);
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return ret;
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}
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static void ieee80211_stop_nan(struct wiphy *wiphy,
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struct wireless_dev *wdev)
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{
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struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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drv_stop_nan(sdata->local, sdata);
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ieee80211_sdata_stop(sdata);
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}
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static int ieee80211_set_noack_map(struct wiphy *wiphy,
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struct net_device *dev,
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u16 noack_map)
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@ -3464,4 +3498,6 @@ const struct cfg80211_ops mac80211_config_ops = {
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.set_ap_chanwidth = ieee80211_set_ap_chanwidth,
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.add_tx_ts = ieee80211_add_tx_ts,
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.del_tx_ts = ieee80211_del_tx_ts,
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.start_nan = ieee80211_start_nan,
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.stop_nan = ieee80211_stop_nan,
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};
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@ -647,6 +647,9 @@ static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
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struct ieee80211_chanctx *curr_ctx = NULL;
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int ret = 0;
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if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_NAN))
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return -ENOTSUPP;
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conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
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lockdep_is_held(&local->chanctx_mtx));
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@ -162,6 +162,7 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
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return;
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if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
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sdata->vif.type == NL80211_IFTYPE_NAN ||
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(sdata->vif.type == NL80211_IFTYPE_MONITOR &&
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!sdata->vif.mu_mimo_owner)))
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return;
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@ -1165,4 +1166,30 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
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local->ops->wake_tx_queue(&local->hw, &txq->txq);
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}
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static inline int drv_start_nan(struct ieee80211_local *local,
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struct ieee80211_sub_if_data *sdata,
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struct cfg80211_nan_conf *conf)
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{
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int ret;
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might_sleep();
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check_sdata_in_driver(sdata);
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trace_drv_start_nan(local, sdata, conf);
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ret = local->ops->start_nan(&local->hw, &sdata->vif, conf);
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trace_drv_return_int(local, ret);
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return ret;
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}
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static inline void drv_stop_nan(struct ieee80211_local *local,
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struct ieee80211_sub_if_data *sdata)
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{
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might_sleep();
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check_sdata_in_driver(sdata);
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trace_drv_stop_nan(local, sdata);
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local->ops->stop_nan(&local->hw, &sdata->vif);
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trace_drv_return_void(local);
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}
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#endif /* __MAC80211_DRIVER_OPS */
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@ -327,6 +327,9 @@ static int ieee80211_check_queues(struct ieee80211_sub_if_data *sdata,
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int n_queues = sdata->local->hw.queues;
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int i;
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if (iftype == NL80211_IFTYPE_NAN)
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return 0;
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if (iftype != NL80211_IFTYPE_P2P_DEVICE) {
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for (i = 0; i < IEEE80211_NUM_ACS; i++) {
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if (WARN_ON_ONCE(sdata->vif.hw_queue[i] ==
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@ -647,7 +650,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
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local->fif_probe_req++;
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}
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if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
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if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
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sdata->vif.type != NL80211_IFTYPE_NAN)
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changed |= ieee80211_reset_erp_info(sdata);
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ieee80211_bss_info_change_notify(sdata, changed);
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@ -1726,7 +1730,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
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ASSERT_RTNL();
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if (type == NL80211_IFTYPE_P2P_DEVICE) {
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if (type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN) {
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struct wireless_dev *wdev;
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sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size,
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@ -821,6 +821,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
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!local->ops->tdls_recv_channel_switch))
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return -EOPNOTSUPP;
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if (WARN_ON(local->hw.wiphy->interface_modes &
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BIT(NL80211_IFTYPE_NAN) &&
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(!local->ops->start_nan || !local->ops->stop_nan)))
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return -EINVAL;
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#ifdef CONFIG_PM
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if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
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return -EINVAL;
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@ -128,7 +128,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local)
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if (!ieee80211_sdata_running(sdata))
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continue;
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if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
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if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
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sdata->vif.type == NL80211_IFTYPE_NAN)
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continue;
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if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
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@ -1700,6 +1700,56 @@ TRACE_EVENT(drv_get_expected_throughput,
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)
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);
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TRACE_EVENT(drv_start_nan,
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TP_PROTO(struct ieee80211_local *local,
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struct ieee80211_sub_if_data *sdata,
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struct cfg80211_nan_conf *conf),
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TP_ARGS(local, sdata, conf),
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TP_STRUCT__entry(
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LOCAL_ENTRY
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VIF_ENTRY
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__field(u8, master_pref)
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__field(u8, dual)
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),
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TP_fast_assign(
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LOCAL_ASSIGN;
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VIF_ASSIGN;
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__entry->master_pref = conf->master_pref;
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__entry->dual = conf->dual;
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),
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TP_printk(
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LOCAL_PR_FMT VIF_PR_FMT
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", master preference: %u, dual: %d",
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LOCAL_PR_ARG, VIF_PR_ARG, __entry->master_pref,
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__entry->dual
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)
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);
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TRACE_EVENT(drv_stop_nan,
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TP_PROTO(struct ieee80211_local *local,
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struct ieee80211_sub_if_data *sdata),
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TP_ARGS(local, sdata),
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TP_STRUCT__entry(
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LOCAL_ENTRY
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VIF_ENTRY
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),
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TP_fast_assign(
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LOCAL_ASSIGN;
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VIF_ASSIGN;
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),
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TP_printk(
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LOCAL_PR_FMT VIF_PR_FMT,
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LOCAL_PR_ARG, VIF_PR_ARG
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)
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);
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/*
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* Tracing for API calls that drivers call.
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*/
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@ -1209,7 +1209,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
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}
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if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
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sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE) {
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sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
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sdata->vif.type != NL80211_IFTYPE_NAN) {
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sdata->vif.bss_conf.qos = enable_qos;
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if (bss_notify)
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ieee80211_bss_info_change_notify(sdata,
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