static int
mt76_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct mt76_dev *dev = hw->priv;
struct mt76_vif *mvif = (struct mt76_vif *) vif->drv_priv;
unsigned int idx = 0;
int ret = 0;
if (vif->addr[0] & BIT(1))
idx = 1 + (((dev->macaddr[0] ^ vif->addr[0]) >> 2) & 7);
/*
* Client mode typically only has one configurable BSSID register,
* which is used for bssidx=0. This is linked to the MAC address.
* Since mac80211 allows changing interface types, and we cannot
* force the use of the primary MAC address for a station mode
* interface, we need some other way of configuring a per-interface
* remote BSSID.
* The hardware provides an AP-Client feature, where bssidx 0-7 are
* used for AP mode and bssidx 8-15 for client mode.
* We shift the station interface bss index by 8 to force the
* hardware to recognize the BSSID.
* The resulting bssidx mismatch for unicast frames is ignored by hw.
*/
if (vif->type == NL80211_IFTYPE_STATION)
idx += 8;
mvif->idx = idx;
mvif->group_wcid.idx = 254 - idx;
mvif->group_wcid.hw_key_idx = -1;
mt76_txq_init(dev, vif->txq);
return ret;
}
static int
mt76_sta_add(struct mt76_dev *dev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
int ret;
int i;
mutex_lock(&dev->mutex);
ret = dev->drv->sta_add(dev, vif, sta);
if (ret)
goto out;
for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
struct mt76_txq *mtxq;
if (!sta->txq[i])
continue;
mtxq = (struct mt76_txq *)sta->txq[i]->drv_priv;
mtxq->wcid = wcid;
mt76_txq_init(dev, sta->txq[i]);
}
ewma_signal_init(&wcid->rssi);
rcu_assign_pointer(dev->wcid[wcid->idx], wcid);
out:
mutex_unlock(&dev->mutex);
return ret;
}
static int
mt76_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt76_dev *dev = hw->priv;
struct mt76_sta *msta = (struct mt76_sta *) sta->drv_priv;
struct mt76_vif *mvif = (struct mt76_vif *) vif->drv_priv;
int ret = 0;
int idx = 0;
int i;
mutex_lock(&dev->mutex);
idx = mt76_wcid_alloc(dev);
if (idx < 0) {
ret = -ENOSPC;
goto out;
}
msta->wcid.idx = idx;
msta->wcid.hw_key_idx = -1;
mt76_mac_wcid_setup(dev, idx, mvif->idx, sta->addr);
mt76_clear(dev, MT_WCID_DROP(idx), MT_WCID_DROP_MASK(idx));
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
mt76_txq_init(dev, sta->txq[i]);
rcu_assign_pointer(dev->wcid[idx], &msta->wcid);
out:
mutex_unlock(&dev->mutex);
return ret;
}
static void
mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif,
unsigned int idx)
{
struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
struct mt76_txq *mtxq;
memset(mvif, 0, sizeof(*mvif));
mvif->idx = idx;
mvif->group_wcid.idx = MT_VIF_WCID(idx);
mvif->group_wcid.hw_key_idx = -1;
mtxq = (struct mt76_txq *) vif->txq->drv_priv;
mtxq->wcid = &mvif->group_wcid;
mt76_txq_init(&dev->mt76, vif->txq);
}
static void
mt7603_txq_init(struct mt7603_dev *dev, struct ieee80211_txq *txq)
{
struct mt76_txq *mtxq;
if (!txq)
return;
mtxq = (struct mt76_txq *) txq->drv_priv;
if (txq->sta) {
struct mt7603_sta *sta = (struct mt7603_sta *) txq->sta->drv_priv;
mtxq->wcid = &sta->wcid;
} else {
struct mt7603_vif *mvif = (struct mt7603_vif *) txq->vif->drv_priv;
mtxq->wcid = &mvif->sta.wcid;
}
mt76_txq_init(&dev->mt76, txq);
}