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path: root/drivers/net/wireless/ath/ath9k/main.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c700
1 files changed, 279 insertions, 421 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 4b148bb..2051624 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -60,8 +60,10 @@ static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
spin_lock_bh(&txq->axq_lock);
- if (txq->axq_depth)
+ if (txq->axq_depth) {
pending = true;
+ goto out;
+ }
if (txq->mac80211_qnum >= 0) {
struct list_head *list;
@@ -70,6 +72,7 @@ static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
if (!list_empty(list))
pending = true;
}
+out:
spin_unlock_bh(&txq->axq_lock);
return pending;
}
@@ -223,18 +226,12 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
unsigned long flags;
- int i;
-
- if (ath_startrecv(sc) != 0) {
- ath_err(common, "Unable to restart recv logic\n");
- return false;
- }
+ ath9k_calculate_summary_state(sc, sc->cur_chan);
+ ath_startrecv(sc);
ath9k_cmn_update_txpow(ah, sc->curtxpow,
sc->cur_chan->txpower, &sc->curtxpow);
-
clear_bit(ATH_OP_HW_RESET, &common->op_flags);
- ath9k_calculate_summary_state(sc, sc->cur_chan);
if (!sc->cur_chan->offchannel && start) {
/* restore per chanctx TSF timer */
@@ -267,22 +264,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
-
- if (!ath9k_use_chanctx)
- ieee80211_wake_queues(sc->hw);
- else {
- if (sc->cur_chan == &sc->offchannel.chan)
- ieee80211_wake_queue(sc->hw,
- sc->hw->offchannel_tx_hw_queue);
- else {
- for (i = 0; i < IEEE80211_NUM_ACS; i++)
- ieee80211_wake_queue(sc->hw,
- sc->cur_chan->hw_queue_base + i);
- }
- if (ah->opmode == NL80211_IFTYPE_AP)
- ieee80211_wake_queue(sc->hw, sc->hw->queues - 2);
- }
-
+ ieee80211_wake_queues(sc->hw);
ath9k_p2p_ps_timer(sc);
return true;
@@ -314,6 +296,9 @@ int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
if (!ath_prepare_reset(sc))
fastcc = false;
+ if (ath9k_is_chanctx_enabled())
+ fastcc = false;
+
spin_lock_bh(&sc->chan_lock);
sc->cur_chandef = sc->cur_chan->chandef;
spin_unlock_bh(&sc->chan_lock);
@@ -358,12 +343,16 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
memset(&an->key_idx, 0, sizeof(an->key_idx));
ath_tx_node_init(sc, an);
+
+ ath_dynack_node_init(sc->sc_ah, an);
}
static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
{
struct ath_node *an = (struct ath_node *)sta->drv_priv;
ath_tx_node_cleanup(sc, an);
+
+ ath_dynack_node_deinit(sc->sc_ah, an);
}
void ath9k_tasklet(unsigned long data)
@@ -822,7 +811,8 @@ static void ath9k_stop(struct ieee80211_hw *hw)
struct ath_common *common = ath9k_hw_common(ah);
bool prev_idle;
- cancel_work_sync(&sc->chanctx_work);
+ ath9k_deinit_channel_context(sc);
+
mutex_lock(&sc->mutex);
ath_cancel_work(sc);
@@ -903,9 +893,10 @@ static bool ath9k_uses_beacons(int type)
}
}
-static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+static void ath9k_vif_iter(struct ath9k_vif_iter_data *iter_data,
+ u8 *mac, struct ieee80211_vif *vif)
{
- struct ath9k_vif_iter_data *iter_data = data;
+ struct ath_vif *avp = (struct ath_vif *)vif->drv_priv;
int i;
if (iter_data->has_hw_macaddr) {
@@ -923,12 +914,10 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
switch (vif->type) {
case NL80211_IFTYPE_AP:
iter_data->naps++;
- if (vif->bss_conf.enable_beacon)
- iter_data->beacons = true;
break;
case NL80211_IFTYPE_STATION:
iter_data->nstations++;
- if (vif->bss_conf.assoc && !iter_data->primary_sta)
+ if (avp->assoc && !iter_data->primary_sta)
iter_data->primary_sta = vif;
break;
case NL80211_IFTYPE_ADHOC:
@@ -949,6 +938,34 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
}
}
+static void ath9k_update_bssid_mask(struct ath_softc *sc,
+ struct ath_chanctx *ctx,
+ struct ath9k_vif_iter_data *iter_data)
+{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_vif *avp;
+ int i;
+
+ if (!ath9k_is_chanctx_enabled())
+ return;
+
+ list_for_each_entry(avp, &ctx->vifs, list) {
+ if (ctx->nvifs_assigned != 1)
+ continue;
+
+ if (!avp->vif->p2p || !iter_data->has_hw_macaddr)
+ continue;
+
+ ether_addr_copy(common->curbssid, avp->bssid);
+
+ /* perm_addr will be used as the p2p device address. */
+ for (i = 0; i < ETH_ALEN; i++)
+ iter_data->mask[i] &=
+ ~(iter_data->hw_macaddr[i] ^
+ sc->hw->wiphy->perm_addr[i]);
+ }
+}
+
/* Called with sc->mutex held. */
void ath9k_calculate_iter_data(struct ath_softc *sc,
struct ath_chanctx *ctx,
@@ -968,38 +985,20 @@ void ath9k_calculate_iter_data(struct ath_softc *sc,
list_for_each_entry(avp, &ctx->vifs, list)
ath9k_vif_iter(iter_data, avp->vif->addr, avp->vif);
- if (ctx == &sc->offchannel.chan) {
- struct ieee80211_vif *vif;
-
- if (sc->offchannel.state < ATH_OFFCHANNEL_ROC_START)
- vif = sc->offchannel.scan_vif;
- else
- vif = sc->offchannel.roc_vif;
-
- if (vif)
- ath9k_vif_iter(iter_data, vif->addr, vif);
- iter_data->beacons = false;
- }
+ ath9k_update_bssid_mask(sc, ctx, iter_data);
}
static void ath9k_set_assoc_state(struct ath_softc *sc,
struct ieee80211_vif *vif, bool changed)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+ struct ath_vif *avp = (struct ath_vif *)vif->drv_priv;
unsigned long flags;
set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
- /* Set the AID, BSSID and do beacon-sync only when
- * the HW opmode is STATION.
- *
- * But the primary bit is set above in any case.
- */
- if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
- return;
- ether_addr_copy(common->curbssid, bss_conf->bssid);
- common->curaid = bss_conf->aid;
+ ether_addr_copy(common->curbssid, avp->bssid);
+ common->curaid = avp->aid;
ath9k_hw_write_associd(sc->sc_ah);
if (changed) {
@@ -1019,6 +1018,43 @@ static void ath9k_set_assoc_state(struct ath_softc *sc,
vif->addr, common->curbssid);
}
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+static void ath9k_set_offchannel_state(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ieee80211_vif *vif = NULL;
+
+ ath9k_ps_wakeup(sc);
+
+ if (sc->offchannel.state < ATH_OFFCHANNEL_ROC_START)
+ vif = sc->offchannel.scan_vif;
+ else
+ vif = sc->offchannel.roc_vif;
+
+ if (WARN_ON(!vif))
+ goto exit;
+
+ eth_zero_addr(common->curbssid);
+ eth_broadcast_addr(common->bssidmask);
+ ether_addr_copy(common->macaddr, vif->addr);
+ common->curaid = 0;
+ ah->opmode = vif->type;
+ ah->imask &= ~ATH9K_INT_SWBA;
+ ah->imask &= ~ATH9K_INT_TSFOOR;
+ ah->slottime = ATH9K_SLOT_TIME_9;
+
+ ath_hw_setbssidmask(common);
+ ath9k_hw_setopmode(ah);
+ ath9k_hw_write_associd(sc->sc_ah);
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_init_global_settings(ah);
+
+exit:
+ ath9k_ps_restore(sc);
+}
+#endif
+
/* Called with sc->mutex held. */
void ath9k_calculate_summary_state(struct ath_softc *sc,
struct ath_chanctx *ctx)
@@ -1026,12 +1062,18 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_vif_iter_data iter_data;
+ struct ath_beacon_config *cur_conf;
ath_chanctx_check_active(sc, ctx);
if (ctx != sc->cur_chan)
return;
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+ if (ctx == &sc->offchannel.chan)
+ return ath9k_set_offchannel_state(sc);
+#endif
+
ath9k_ps_wakeup(sc);
ath9k_calculate_iter_data(sc, ctx, &iter_data);
@@ -1042,8 +1084,11 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
ath_hw_setbssidmask(common);
if (iter_data.naps > 0) {
+ cur_conf = &ctx->beacon;
ath9k_hw_set_tsfadjust(ah, true);
ah->opmode = NL80211_IFTYPE_AP;
+ if (cur_conf->enable_beacon)
+ iter_data.beacons = true;
} else {
ath9k_hw_set_tsfadjust(ah, false);
@@ -1072,13 +1117,11 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
if (ah->opmode == NL80211_IFTYPE_STATION) {
bool changed = (iter_data.primary_sta != ctx->primary_sta);
- iter_data.beacons = true;
if (iter_data.primary_sta) {
+ iter_data.beacons = true;
ath9k_set_assoc_state(sc, iter_data.primary_sta,
changed);
- if (!ctx->primary_sta ||
- !ctx->primary_sta->bss_conf.assoc)
- ctx->primary_sta = iter_data.primary_sta;
+ ctx->primary_sta = iter_data.primary_sta;
} else {
ctx->primary_sta = NULL;
memset(common->curbssid, 0, ETH_ALEN);
@@ -1107,11 +1150,27 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
else
clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags);
- ctx->primary_sta = iter_data.primary_sta;
+ ath_dbg(common, CONFIG,
+ "macaddr: %pM, bssid: %pM, bssidmask: %pM\n",
+ common->macaddr, common->curbssid, common->bssidmask);
ath9k_ps_restore(sc);
}
+static void ath9k_assign_hw_queues(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ int i;
+
+ for (i = 0; i < IEEE80211_NUM_ACS; i++)
+ vif->hw_queue[i] = i;
+
+ if (vif->type == NL80211_IFTYPE_AP)
+ vif->cab_queue = hw->queues - 2;
+ else
+ vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
+}
+
static int ath9k_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -1120,12 +1179,11 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
struct ath_common *common = ath9k_hw_common(ah);
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_node *an = &avp->mcast_node;
- int i;
mutex_lock(&sc->mutex);
if (config_enabled(CONFIG_ATH9K_TX99)) {
- if (sc->nvifs >= 1) {
+ if (sc->cur_chan->nvifs >= 1) {
mutex_unlock(&sc->mutex);
return -EOPNOTSUPP;
}
@@ -1133,22 +1191,18 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
}
ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
- sc->nvifs++;
+ sc->cur_chan->nvifs++;
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
avp->vif = vif;
- if (!ath9k_use_chanctx) {
+ if (!ath9k_is_chanctx_enabled()) {
avp->chanctx = sc->cur_chan;
list_add_tail(&avp->list, &avp->chanctx->vifs);
}
- for (i = 0; i < IEEE80211_NUM_ACS; i++)
- vif->hw_queue[i] = i;
- if (vif->type == NL80211_IFTYPE_AP)
- vif->cab_queue = hw->queues - 2;
- else
- vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
+
+ ath9k_assign_hw_queues(hw, vif);
an->sc = sc;
an->sta = NULL;
@@ -1168,7 +1222,6 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
- int i;
mutex_lock(&sc->mutex);
@@ -1188,43 +1241,13 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
- for (i = 0; i < IEEE80211_NUM_ACS; i++)
- vif->hw_queue[i] = i;
-
- if (vif->type == NL80211_IFTYPE_AP)
- vif->cab_queue = hw->queues - 2;
- else
- vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
-
+ ath9k_assign_hw_queues(hw, vif);
ath9k_calculate_summary_state(sc, avp->chanctx);
mutex_unlock(&sc->mutex);
return 0;
}
-static void
-ath9k_update_p2p_ps_timer(struct ath_softc *sc, struct ath_vif *avp)
-{
- struct ath_hw *ah = sc->sc_ah;
- s32 tsf, target_tsf;
-
- if (!avp || !avp->noa.has_next_tsf)
- return;
-
- ath9k_hw_gen_timer_stop(ah, sc->p2p_ps_timer);
-
- tsf = ath9k_hw_gettsf32(sc->sc_ah);
-
- target_tsf = avp->noa.next_tsf;
- if (!avp->noa.absent)
- target_tsf -= ATH_P2P_PS_STOP_TIME;
-
- if (target_tsf - tsf < ATH_P2P_PS_STOP_TIME)
- target_tsf = tsf + ATH_P2P_PS_STOP_TIME;
-
- ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, (u32) target_tsf, 1000000);
-}
-
static void ath9k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -1236,16 +1259,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
mutex_lock(&sc->mutex);
- spin_lock_bh(&sc->sc_pcu_lock);
- if (avp == sc->p2p_ps_vif) {
- sc->p2p_ps_vif = NULL;
- ath9k_update_p2p_ps_timer(sc, NULL);
- }
- spin_unlock_bh(&sc->sc_pcu_lock);
+ ath9k_p2p_remove_vif(sc, vif);
- sc->nvifs--;
+ sc->cur_chan->nvifs--;
sc->tx99_vif = NULL;
- if (!ath9k_use_chanctx)
+ if (!ath9k_is_chanctx_enabled())
list_del(&avp->list);
if (ath9k_uses_beacons(vif->type))
@@ -1423,7 +1441,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
}
}
- if (!ath9k_use_chanctx && (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
+ if (!ath9k_is_chanctx_enabled() && (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
ctx->offchannel = !!(conf->flags & IEEE80211_CONF_OFFCHANNEL);
ath_chanctx_set_channel(sc, ctx, &hw->conf.chandef);
}
@@ -1463,7 +1481,10 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw,
changed_flags &= SUPPORTED_FILTERS;
*total_flags &= SUPPORTED_FILTERS;
- sc->rx.rxfilter = *total_flags;
+ spin_lock_bh(&sc->chan_lock);
+ sc->cur_chan->rxfilter = *total_flags;
+ spin_unlock_bh(&sc->chan_lock);
+
ath9k_ps_wakeup(sc);
rfilt = ath_calcrxfilter(sc);
ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
@@ -1687,70 +1708,6 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
return ret;
}
-void ath9k_p2p_ps_timer(void *priv)
-{
- struct ath_softc *sc = priv;
- struct ath_vif *avp = sc->p2p_ps_vif;
- struct ieee80211_vif *vif;
- struct ieee80211_sta *sta;
- struct ath_node *an;
- u32 tsf;
-
- del_timer_sync(&sc->sched.timer);
- ath9k_hw_gen_timer_stop(sc->sc_ah, sc->p2p_ps_timer);
- ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_TSF_TIMER);
-
- if (!avp || avp->chanctx != sc->cur_chan)
- return;
-
- tsf = ath9k_hw_gettsf32(sc->sc_ah);
- if (!avp->noa.absent)
- tsf += ATH_P2P_PS_STOP_TIME;
-
- if (!avp->noa.has_next_tsf ||
- avp->noa.next_tsf - tsf > BIT(31))
- ieee80211_update_p2p_noa(&avp->noa, tsf);
-
- ath9k_update_p2p_ps_timer(sc, avp);
-
- rcu_read_lock();
-
- vif = avp->vif;
- sta = ieee80211_find_sta(vif, vif->bss_conf.bssid);
- if (!sta)
- goto out;
-
- an = (void *) sta->drv_priv;
- if (an->sleeping == !!avp->noa.absent)
- goto out;
-
- an->sleeping = avp->noa.absent;
- if (an->sleeping)
- ath_tx_aggr_sleep(sta, sc, an);
- else
- ath_tx_aggr_wakeup(sc, an);
-
-out:
- rcu_read_unlock();
-}
-
-void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif)
-{
- struct ath_vif *avp = (void *)vif->drv_priv;
- u32 tsf;
-
- if (!sc->p2p_ps_timer)
- return;
-
- if (vif->type != NL80211_IFTYPE_STATION || !vif->p2p)
- return;
-
- sc->p2p_ps_vif = avp;
- tsf = ath9k_hw_gettsf32(sc->sc_ah);
- ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf);
- ath9k_update_p2p_ps_timer(sc, avp);
-}
-
static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -1765,7 +1722,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_vif *avp = (void *)vif->drv_priv;
- unsigned long flags;
int slottime;
ath9k_ps_wakeup(sc);
@@ -1775,9 +1731,17 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
bss_conf->bssid, bss_conf->assoc);
+ ether_addr_copy(avp->bssid, bss_conf->bssid);
+ avp->aid = bss_conf->aid;
+ avp->assoc = bss_conf->assoc;
+
ath9k_calculate_summary_state(sc, avp->chanctx);
- if (bss_conf->assoc)
- ath_chanctx_event(sc, vif, ATH_CHANCTX_EVENT_ASSOC);
+
+ if (ath9k_is_chanctx_enabled()) {
+ if (bss_conf->assoc)
+ ath_chanctx_event(sc, vif,
+ ATH_CHANCTX_EVENT_ASSOC);
+ }
}
if (changed & BSS_CHANGED_IBSS) {
@@ -1789,9 +1753,9 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
(changed & BSS_CHANGED_BEACON_INT) ||
(changed & BSS_CHANGED_BEACON_INFO)) {
+ ath9k_beacon_config(sc, vif, changed);
if (changed & BSS_CHANGED_BEACON_ENABLED)
ath9k_calculate_summary_state(sc, avp->chanctx);
- ath9k_beacon_config(sc, vif, changed);
}
if ((avp->chanctx == sc->cur_chan) &&
@@ -1814,14 +1778,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
}
- if (changed & BSS_CHANGED_P2P_PS) {
- spin_lock_bh(&sc->sc_pcu_lock);
- spin_lock_irqsave(&sc->sc_pm_lock, flags);
- if (!(sc->ps_flags & PS_BEACON_SYNC))
- ath9k_update_p2p_ps(sc, vif);
- spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
- spin_unlock_bh(&sc->sc_pcu_lock);
- }
+ if (changed & BSS_CHANGED_P2P_PS)
+ ath9k_p2p_bss_info_changed(sc, vif);
if (changed & CHECK_ANI)
ath_check_ani(sc);
@@ -1959,7 +1917,22 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
return 0;
}
-static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
+static void ath9k_enable_dynack(struct ath_softc *sc)
+{
+#ifdef CONFIG_ATH9K_DYNACK
+ u32 rfilt;
+ struct ath_hw *ah = sc->sc_ah;
+
+ ath_dynack_reset(ah);
+
+ ah->dynack.enabled = true;
+ rfilt = ath_calcrxfilter(sc);
+ ath9k_hw_setrxfilter(ah, rfilt);
+#endif
+}
+
+static void ath9k_set_coverage_class(struct ieee80211_hw *hw,
+ s16 coverage_class)
{
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
@@ -1968,11 +1941,22 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
return;
mutex_lock(&sc->mutex);
- ah->coverage_class = coverage_class;
- ath9k_ps_wakeup(sc);
- ath9k_hw_init_global_settings(ah);
- ath9k_ps_restore(sc);
+ if (coverage_class >= 0) {
+ ah->coverage_class = coverage_class;
+ if (ah->dynack.enabled) {
+ u32 rfilt;
+
+ ah->dynack.enabled = false;
+ rfilt = ath_calcrxfilter(sc);
+ ath9k_hw_setrxfilter(ah, rfilt);
+ }
+ ath9k_ps_wakeup(sc);
+ ath9k_hw_init_global_settings(ah);
+ ath9k_ps_restore(sc);
+ } else if (!ah->dynack.enabled) {
+ ath9k_enable_dynack(sc);
+ }
mutex_unlock(&sc->mutex);
}
@@ -1985,9 +1969,6 @@ static bool ath9k_has_tx_pending(struct ath_softc *sc)
if (!ATH_TXQ_SETUP(sc, i))
continue;
- if (!sc->tx.txq[i].axq_depth)
- continue;
-
npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
if (npend)
break;
@@ -2013,7 +1994,6 @@ void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
struct ath_common *common = ath9k_hw_common(ah);
int timeout = HZ / 5; /* 200 ms */
bool drain_txq;
- int i;
cancel_delayed_work_sync(&sc->tx_complete_work);
@@ -2041,10 +2021,6 @@ void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
ath_reset(sc);
ath9k_ps_restore(sc);
- for (i = 0; i < IEEE80211_NUM_ACS; i++) {
- ieee80211_wake_queue(sc->hw,
- sc->cur_chan->hw_queue_base + i);
- }
}
ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
@@ -2053,16 +2029,8 @@ void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
{
struct ath_softc *sc = hw->priv;
- int i;
-
- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
- if (!ATH_TXQ_SETUP(sc, i))
- continue;
- if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
- return true;
- }
- return false;
+ return ath9k_has_tx_pending(sc);
}
static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
@@ -2207,207 +2175,7 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
clear_bit(ATH_OP_SCANNING, &common->op_flags);
}
-static int ath_scan_channel_duration(struct ath_softc *sc,
- struct ieee80211_channel *chan)
-{
- struct cfg80211_scan_request *req = sc->offchannel.scan_req;
-
- if (!req->n_ssids || (chan->flags & IEEE80211_CHAN_NO_IR))
- return (HZ / 9); /* ~110 ms */
-
- return (HZ / 16); /* ~60 ms */
-}
-
-static void
-ath_scan_next_channel(struct ath_softc *sc)
-{
- struct cfg80211_scan_request *req = sc->offchannel.scan_req;
- struct ieee80211_channel *chan;
-
- if (sc->offchannel.scan_idx >= req->n_channels) {
- sc->offchannel.state = ATH_OFFCHANNEL_IDLE;
- ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false),
- NULL);
- return;
- }
-
- chan = req->channels[sc->offchannel.scan_idx++];
- sc->offchannel.duration = ath_scan_channel_duration(sc, chan);
- sc->offchannel.state = ATH_OFFCHANNEL_PROBE_SEND;
- ath_chanctx_offchan_switch(sc, chan);
-}
-
-static void ath_offchannel_next(struct ath_softc *sc)
-{
- struct ieee80211_vif *vif;
-
- if (sc->offchannel.scan_req) {
- vif = sc->offchannel.scan_vif;
- sc->offchannel.chan.txpower = vif->bss_conf.txpower;
- ath_scan_next_channel(sc);
- } else if (sc->offchannel.roc_vif) {
- vif = sc->offchannel.roc_vif;
- sc->offchannel.chan.txpower = vif->bss_conf.txpower;
- sc->offchannel.duration = sc->offchannel.roc_duration;
- sc->offchannel.state = ATH_OFFCHANNEL_ROC_START;
- ath_chanctx_offchan_switch(sc, sc->offchannel.roc_chan);
- } else {
- ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false),
- NULL);
- sc->offchannel.state = ATH_OFFCHANNEL_IDLE;
- if (sc->ps_idle)
- ath_cancel_work(sc);
- }
-}
-
-static void ath_roc_complete(struct ath_softc *sc, bool abort)
-{
- sc->offchannel.roc_vif = NULL;
- sc->offchannel.roc_chan = NULL;
- if (!abort)
- ieee80211_remain_on_channel_expired(sc->hw);
- ath_offchannel_next(sc);
- ath9k_ps_restore(sc);
-}
-
-static void ath_scan_complete(struct ath_softc *sc, bool abort)
-{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-
- sc->offchannel.scan_req = NULL;
- sc->offchannel.scan_vif = NULL;
- sc->offchannel.state = ATH_OFFCHANNEL_IDLE;
- ieee80211_scan_completed(sc->hw, abort);
- clear_bit(ATH_OP_SCANNING, &common->op_flags);
- ath_offchannel_next(sc);
- ath9k_ps_restore(sc);
-}
-
-static void ath_scan_send_probe(struct ath_softc *sc,
- struct cfg80211_ssid *ssid)
-{
- struct cfg80211_scan_request *req = sc->offchannel.scan_req;
- struct ieee80211_vif *vif = sc->offchannel.scan_vif;
- struct ath_tx_control txctl = {};
- struct sk_buff *skb;
- struct ieee80211_tx_info *info;
- int band = sc->offchannel.chan.chandef.chan->band;
-
- skb = ieee80211_probereq_get(sc->hw, vif,
- ssid->ssid, ssid->ssid_len, req->ie_len);
- if (!skb)
- return;
-
- info = IEEE80211_SKB_CB(skb);
- if (req->no_cck)
- info->flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
-
- if (req->ie_len)
- memcpy(skb_put(skb, req->ie_len), req->ie, req->ie_len);
-
- skb_set_queue_mapping(skb, IEEE80211_AC_VO);
-
- if (!ieee80211_tx_prepare_skb(sc->hw, vif, skb, band, NULL))
- goto error;
-
- txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO];
- txctl.force_channel = true;
- if (ath_tx_start(sc->hw, skb, &txctl))
- goto error;
-
- return;
-
-error:
- ieee80211_free_txskb(sc->hw, skb);
-}
-
-static void ath_scan_channel_start(struct ath_softc *sc)
-{
- struct cfg80211_scan_request *req = sc->offchannel.scan_req;
- int i;
-
- if (!(sc->cur_chan->chandef.chan->flags & IEEE80211_CHAN_NO_IR) &&
- req->n_ssids) {
- for (i = 0; i < req->n_ssids; i++)
- ath_scan_send_probe(sc, &req->ssids[i]);
-
- }
-
- sc->offchannel.state = ATH_OFFCHANNEL_PROBE_WAIT;
- mod_timer(&sc->offchannel.timer, jiffies + sc->offchannel.duration);
-}
-
-void ath_offchannel_channel_change(struct ath_softc *sc)
-{
- switch (sc->offchannel.state) {
- case ATH_OFFCHANNEL_PROBE_SEND:
- if (!sc->offchannel.scan_req)
- return;
-
- if (sc->cur_chan->chandef.chan !=
- sc->offchannel.chan.chandef.chan)
- return;
-
- ath_scan_channel_start(sc);
- break;
- case ATH_OFFCHANNEL_IDLE:
- if (!sc->offchannel.scan_req)
- return;
-
- ath_scan_complete(sc, false);
- break;
- case ATH_OFFCHANNEL_ROC_START:
- if (sc->cur_chan != &sc->offchannel.chan)
- break;
-
- sc->offchannel.state = ATH_OFFCHANNEL_ROC_WAIT;
- mod_timer(&sc->offchannel.timer, jiffies +
- msecs_to_jiffies(sc->offchannel.duration));
- ieee80211_ready_on_channel(sc->hw);
- break;
- case ATH_OFFCHANNEL_ROC_DONE:
- ath_roc_complete(sc, false);
- break;
- default:
- break;
- }
-}
-
-void ath_offchannel_timer(unsigned long data)
-{
- struct ath_softc *sc = (struct ath_softc *)data;
- struct ath_chanctx *ctx;
-
- switch (sc->offchannel.state) {
- case ATH_OFFCHANNEL_PROBE_WAIT:
- if (!sc->offchannel.scan_req)
- return;
-
- /* get first active channel context */
- ctx = ath_chanctx_get_oper_chan(sc, true);
- if (ctx->active) {
- sc->offchannel.state = ATH_OFFCHANNEL_SUSPEND;
- ath_chanctx_switch(sc, ctx, NULL);
- mod_timer(&sc->offchannel.timer, jiffies + HZ / 10);
- break;
- }
- /* fall through */
- case ATH_OFFCHANNEL_SUSPEND:
- if (!sc->offchannel.scan_req)
- return;
-
- ath_scan_next_channel(sc);
- break;
- case ATH_OFFCHANNEL_ROC_START:
- case ATH_OFFCHANNEL_ROC_WAIT:
- ctx = ath_chanctx_get_oper_chan(sc, false);
- sc->offchannel.state = ATH_OFFCHANNEL_ROC_DONE;
- ath_chanctx_switch(sc, ctx, NULL);
- break;
- default:
- break;
- }
-}
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
static int ath9k_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_scan_request *hw_req)
@@ -2430,8 +2198,13 @@ static int ath9k_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
sc->offchannel.scan_req = req;
sc->offchannel.scan_idx = 0;
- if (sc->offchannel.state == ATH_OFFCHANNEL_IDLE)
+ ath_dbg(common, CHAN_CTX, "HW scan request received on vif: %pM\n",
+ vif->addr);
+
+ if (sc->offchannel.state == ATH_OFFCHANNEL_IDLE) {
+ ath_dbg(common, CHAN_CTX, "Starting HW scan\n");
ath_offchannel_next(sc);
+ }
out:
mutex_unlock(&sc->mutex);
@@ -2443,6 +2216,9 @@ static void ath9k_cancel_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+
+ ath_dbg(common, CHAN_CTX, "Cancel HW scan on vif: %pM\n", vif->addr);
mutex_lock(&sc->mutex);
del_timer_sync(&sc->offchannel.timer);
@@ -2456,6 +2232,7 @@ static int ath9k_remain_on_channel(struct ieee80211_hw *hw,
enum ieee80211_roc_type type)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int ret = 0;
mutex_lock(&sc->mutex);
@@ -2470,8 +2247,14 @@ static int ath9k_remain_on_channel(struct ieee80211_hw *hw,
sc->offchannel.roc_chan = chan;
sc->offchannel.roc_duration = duration;
- if (sc->offchannel.state == ATH_OFFCHANNEL_IDLE)
+ ath_dbg(common, CHAN_CTX,
+ "RoC request on vif: %pM, type: %d duration: %d\n",
+ vif->addr, type, duration);
+
+ if (sc->offchannel.state == ATH_OFFCHANNEL_IDLE) {
+ ath_dbg(common, CHAN_CTX, "Starting RoC period\n");
ath_offchannel_next(sc);
+ }
out:
mutex_unlock(&sc->mutex);
@@ -2482,9 +2265,11 @@ out:
static int ath9k_cancel_remain_on_channel(struct ieee80211_hw *hw)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
mutex_lock(&sc->mutex);
+ ath_dbg(common, CHAN_CTX, "Cancel RoC\n");
del_timer_sync(&sc->offchannel.timer);
if (sc->offchannel.roc_vif) {
@@ -2501,6 +2286,7 @@ static int ath9k_add_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *conf)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_chanctx *ctx, **ptr;
int pos;
@@ -2515,10 +2301,18 @@ static int ath9k_add_chanctx(struct ieee80211_hw *hw,
ctx->assigned = true;
pos = ctx - &sc->chanctx[0];
ctx->hw_queue_base = pos * IEEE80211_NUM_ACS;
+
+ ath_dbg(common, CHAN_CTX,
+ "Add channel context: %d MHz\n",
+ conf->def.chan->center_freq);
+
ath_chanctx_set_channel(sc, ctx, &conf->def);
+ ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_ASSIGN);
+
mutex_unlock(&sc->mutex);
return 0;
}
+
mutex_unlock(&sc->mutex);
return -ENOSPC;
}
@@ -2528,12 +2322,19 @@ static void ath9k_remove_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *conf)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_chanctx *ctx = ath_chanctx_get(conf);
mutex_lock(&sc->mutex);
+
+ ath_dbg(common, CHAN_CTX,
+ "Remove channel context: %d MHz\n",
+ conf->def.chan->center_freq);
+
ctx->assigned = false;
ctx->hw_queue_base = -1;
ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_UNASSIGN);
+
mutex_unlock(&sc->mutex);
}
@@ -2542,9 +2343,13 @@ static void ath9k_change_chanctx(struct ieee80211_hw *hw,
u32 changed)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_chanctx *ctx = ath_chanctx_get(conf);
mutex_lock(&sc->mutex);
+ ath_dbg(common, CHAN_CTX,
+ "Change channel context: %d MHz\n",
+ conf->def.chan->center_freq);
ath_chanctx_set_channel(sc, ctx, &conf->def);
mutex_unlock(&sc->mutex);
}
@@ -2554,16 +2359,25 @@ static int ath9k_assign_vif_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *conf)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_chanctx *ctx = ath_chanctx_get(conf);
int i;
mutex_lock(&sc->mutex);
+
+ ath_dbg(common, CHAN_CTX,
+ "Assign VIF (addr: %pM, type: %d, p2p: %d) to channel context: %d MHz\n",
+ vif->addr, vif->type, vif->p2p,
+ conf->def.chan->center_freq);
+
avp->chanctx = ctx;
+ ctx->nvifs_assigned++;
list_add_tail(&avp->list, &ctx->vifs);
ath9k_calculate_summary_state(sc, ctx);
for (i = 0; i < IEEE80211_NUM_ACS; i++)
vif->hw_queue[i] = ctx->hw_queue_base + i;
+
mutex_unlock(&sc->mutex);
return 0;
@@ -2574,36 +2388,80 @@ static void ath9k_unassign_vif_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *conf)
{
struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
struct ath_chanctx *ctx = ath_chanctx_get(conf);
int ac;
mutex_lock(&sc->mutex);
+
+ ath_dbg(common, CHAN_CTX,
+ "Remove VIF (addr: %pM, type: %d, p2p: %d) from channel context: %d MHz\n",
+ vif->addr, vif->type, vif->p2p,
+ conf->def.chan->center_freq);
+
avp->chanctx = NULL;
+ ctx->nvifs_assigned--;
list_del(&avp->list);
ath9k_calculate_summary_state(sc, ctx);
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE;
+
+ mutex_unlock(&sc->mutex);
+}
+
+static void ath9k_mgd_prepare_tx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_vif *avp = (struct ath_vif *) vif->drv_priv;
+ bool changed = false;
+
+ if (!test_bit(ATH_OP_MULTI_CHANNEL, &common->op_flags))
+ return;
+
+ if (!avp->chanctx)
+ return;
+
+ mutex_lock(&sc->mutex);
+
+ spin_lock_bh(&sc->chan_lock);
+ if (sc->next_chan || (sc->cur_chan != avp->chanctx)) {
+ sc->next_chan = avp->chanctx;
+ changed = true;
+ }
+ ath_dbg(common, CHAN_CTX,
+ "%s: Set chanctx state to FORCE_ACTIVE, changed: %d\n",
+ __func__, changed);
+ sc->sched.state = ATH_CHANCTX_STATE_FORCE_ACTIVE;
+ spin_unlock_bh(&sc->chan_lock);
+
+ if (changed)
+ ath_chanctx_set_next(sc, true);
+
mutex_unlock(&sc->mutex);
}
void ath9k_fill_chanctx_ops(void)
{
- if (!ath9k_use_chanctx)
+ if (!ath9k_is_chanctx_enabled())
return;
- ath9k_ops.hw_scan = ath9k_hw_scan;
- ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
- ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
+ ath9k_ops.hw_scan = ath9k_hw_scan;
+ ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
+ ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
- ath9k_ops.add_chanctx = ath9k_add_chanctx;
- ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
- ath9k_ops.change_chanctx = ath9k_change_chanctx;
- ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
- ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
- ath9k_ops.mgd_prepare_tx = ath9k_chanctx_force_active;
+ ath9k_ops.add_chanctx = ath9k_add_chanctx;
+ ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
+ ath9k_ops.change_chanctx = ath9k_change_chanctx;
+ ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
+ ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
+ ath9k_ops.mgd_prepare_tx = ath9k_mgd_prepare_tx;
}
+#endif
+
struct ieee80211_ops ath9k_ops = {
.tx = ath9k_tx,
.start = ath9k_start,
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