mac80211: rewrite HT handling
The HT handling has the following deficiencies, which I've
(partially) fixed:
* it always uses the AP info even if there is no AP,
hence has no chance of working as an AP
* it pretends to be HW config, but really is per-BSS
* channel sanity checking is left to the drivers
* it generally lets the driver control too much
HT enabling is still wrong with this patch if you have more than
one virtual STA mode interface, but that never happens currently.
Once WDS, IBSS or AP/VLAN gets HT capabilities, it will also be
wrong, see the comment in ieee80211_enable_ht().
Additionally, this fixes a number of bugs:
* mac80211: ieee80211_set_disassoc doesn't notify the driver any
more since the refactoring
* iwl-agn-rs: always uses the HT capabilities from the wrong stuff
mac80211 gives it rather than the actual peer STA
* ath9k: a number of bugs resulting from the broken HT API
I'm not entirely happy with putting the HT capabilities into
struct ieee80211_sta as restricted to our own HT TX capabilities,
but I see no cleaner solution for now.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index cb3e61e..59d835b 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -380,7 +380,6 @@
int ath_rx_tasklet(struct ath_softc *sc, int flush);
int ath_rx_input(struct ath_softc *sc,
struct ath_node *node,
- int is_ampdu,
struct sk_buff *skb,
struct ath_recv_status *rx_status,
enum ATH_RX_TYPE *status);
@@ -650,6 +649,9 @@
u8 an_smmode; /* SM Power save mode */
u8 an_flags;
u8 an_addr[ETH_ALEN];
+
+ u16 maxampdu;
+ u8 mpdudensity;
};
void ath_tx_resume_tid(struct ath_softc *sc,
@@ -919,8 +921,6 @@
struct ath_ht_info {
enum ath9k_ht_macmode tx_chan_width;
- u16 maxampdu;
- u8 mpdudensity;
u8 ext_chan_offset;
};
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 41cd114..7555c34 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -330,25 +330,15 @@
{
struct ath_ht_info *ht_info = &sc->sc_ht_info;
- if (bss_conf->assoc_ht) {
- ht_info->ext_chan_offset =
- bss_conf->ht_bss_conf->bss_cap &
- IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+ if (sc->hw->conf.ht.enabled) {
+ ht_info->ext_chan_offset = bss_conf->ht.secondary_channel_offset;
- if (!(bss_conf->ht_cap->cap &
- IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
- (bss_conf->ht_bss_conf->bss_cap &
- IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
+ if (bss_conf->ht.width_40_ok)
ht_info->tx_chan_width = ATH9K_HT_MACMODE_2040;
else
ht_info->tx_chan_width = ATH9K_HT_MACMODE_20;
ath9k_hw_set11nmac2040(sc->sc_ah, ht_info->tx_chan_width);
- ht_info->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR +
- bss_conf->ht_cap->ampdu_factor);
- ht_info->mpdudensity =
- parse_mpdudensity(bss_conf->ht_cap->ampdu_density);
-
}
}
@@ -390,7 +380,7 @@
sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER;
/* Update chainmask */
- ath_update_chainmask(sc, bss_conf->assoc_ht);
+ ath_update_chainmask(sc, hw->conf.ht.enabled);
DPRINTF(sc, ATH_DBG_CONFIG,
"%s: bssid %pM aid 0x%x\n",
@@ -408,7 +398,7 @@
return;
}
- if (hw->conf.ht_cap.ht_supported)
+ if (hw->conf.ht.enabled)
sc->sc_ah->ah_channels[pos].chanmode =
ath_get_extchanmode(sc, curchan);
else
@@ -531,7 +521,6 @@
if (an) {
ath_rx_input(sc, an,
- hw->conf.ht_cap.ht_supported,
skb, status, &st);
}
if (!an || (st != ATH_RX_CONSUMED))
@@ -1241,6 +1230,9 @@
__func__,
curchan->center_freq);
+ /* Update chainmask */
+ ath_update_chainmask(sc, conf->ht.enabled);
+
pos = ath_get_channel(sc, curchan);
if (pos == -1) {
DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid channel\n", __func__);
@@ -1251,7 +1243,7 @@
(curchan->band == IEEE80211_BAND_2GHZ) ?
CHANNEL_G : CHANNEL_A;
- if (sc->sc_curaid && hw->conf.ht_cap.ht_supported)
+ if (sc->sc_curaid && hw->conf.ht.enabled)
sc->sc_ah->ah_channels[pos].chanmode =
ath_get_extchanmode(sc, curchan);
@@ -1434,6 +1426,14 @@
} else {
ath_node_get(sc, sta->addr);
}
+
+ /* XXX: Is this right? Can the capabilities change? */
+ an = ath_node_find(sc, sta->addr);
+ an->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR +
+ sta->ht_cap.ampdu_factor);
+ an->mpdudensity =
+ parse_mpdudensity(sta->ht_cap.ampdu_density);
+
spin_unlock_irqrestore(&sc->node_lock, flags);
break;
case STA_NOTIFY_REMOVE:
@@ -1552,9 +1552,8 @@
}
if (changed & BSS_CHANGED_HT) {
- DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed HT %d\n",
- __func__,
- bss_conf->assoc_ht);
+ DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed HT\n",
+ __func__);
ath9k_ht_conf(sc, bss_conf);
}
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index ee2dbce..9b25260 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1838,7 +1838,7 @@
struct ath_softc *sc = hw->priv;
u32 capflag = 0;
- if (hw->conf.ht_cap.ht_supported) {
+ if (hw->conf.ht.enabled) {
capflag |= ATH_RC_HT_FLAG | ATH_RC_DS_FLAG;
if (sc->sc_ht_info.tx_chan_width == ATH9K_HT_MACMODE_2040)
capflag |= ATH_RC_CW40_FLAG;
@@ -1979,7 +1979,7 @@
/* Check if aggregation has to be enabled for this tid */
- if (hw->conf.ht_cap.ht_supported) {
+ if (hw->conf.ht.enabled) {
if (ieee80211_is_data_qos(fc)) {
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
@@ -2026,9 +2026,9 @@
DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__);
ath_setup_rates(sc, sband, sta, ath_rc_priv);
- if (sc->hw->conf.flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ if (sc->hw->conf.ht.enabled) {
for (i = 0; i < 77; i++) {
- if (sc->hw->conf.ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
+ if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
ath_rc_priv->neg_ht_rates.rs_rates[j++] = i;
if (j == ATH_RATE_MAX)
break;
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 010fcdf..8283228 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -720,12 +720,11 @@
int ath_rx_input(struct ath_softc *sc,
struct ath_node *an,
- int is_ampdu,
struct sk_buff *skb,
struct ath_recv_status *rx_status,
enum ATH_RX_TYPE *status)
{
- if (is_ampdu && (sc->sc_flags & SC_OP_RXAGGR)) {
+ if (sc->sc_flags & SC_OP_RXAGGR) {
*status = ATH_RX_CONSUMED;
return ath_ampdu_input(sc, an, skb, rx_status);
} else {
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 3770fbe..ba818cc 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -300,7 +300,8 @@
if (ieee80211_is_data(fc) && !txctl->use_minrate) {
/* Enable HT only for DATA frames and not for EAPOL */
- txctl->ht = (hw->conf.ht_cap.ht_supported &&
+ /* XXX why AMPDU only?? */
+ txctl->ht = (hw->conf.ht.enabled &&
(tx_info->flags & IEEE80211_TX_CTL_AMPDU));
if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1450,7 +1451,8 @@
*/
static u32 ath_lookup_rate(struct ath_softc *sc,
- struct ath_buf *bf)
+ struct ath_buf *bf,
+ struct ath_atx_tid *tid)
{
const struct ath9k_rate_table *rt = sc->sc_currates;
struct sk_buff *skb;
@@ -1504,7 +1506,7 @@
* The IE, however can hold upto 65536, which shows up here
* as zero. Ignore 65536 since we are constrained by hw.
*/
- maxampdu = sc->sc_ht_info.maxampdu;
+ maxampdu = tid->an->maxampdu;
if (maxampdu)
aggr_limit = min(aggr_limit, maxampdu);
@@ -1518,6 +1520,7 @@
*/
static int ath_compute_num_delims(struct ath_softc *sc,
+ struct ath_atx_tid *tid,
struct ath_buf *bf,
u16 frmlen)
{
@@ -1545,7 +1548,7 @@
* required minimum length for subframe. Take into account
* whether high rate is 20 or 40Mhz and half or full GI.
*/
- mpdudensity = sc->sc_ht_info.mpdudensity;
+ mpdudensity = tid->an->mpdudensity;
/*
* If there is no mpdu density restriction, no further calculation
@@ -1619,7 +1622,7 @@
}
if (!rl) {
- aggr_limit = ath_lookup_rate(sc, bf);
+ aggr_limit = ath_lookup_rate(sc, bf, tid);
rl = 1;
/*
* Is rate dual stream
@@ -1657,7 +1660,7 @@
* Get the delimiters needed to meet the MPDU
* density for this node.
*/
- ndelim = ath_compute_num_delims(sc, bf_first, bf->bf_frmlen);
+ ndelim = ath_compute_num_delims(sc, tid, bf_first, bf->bf_frmlen);
bpad = PADBYTES(al_delta) + (ndelim << 2);
@@ -2629,7 +2632,7 @@
struct ath_atx_ac *ac;
int tidno, acno;
- sc->sc_ht_info.maxampdu = ATH_AMPDU_LIMIT_DEFAULT;
+ an->maxampdu = ATH_AMPDU_LIMIT_DEFAULT;
/*
* Init per tid tx state
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index cd1bff5..e10e0ca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -1133,8 +1133,7 @@
s32 rate;
s8 is_green = lq_sta->is_green;
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->ht_cap.ht_supported)
+ if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
@@ -1201,8 +1200,7 @@
u8 is_green = lq_sta->is_green;
s32 rate;
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->ht_cap.ht_supported)
+ if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
return -1;
IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
@@ -2001,9 +1999,8 @@
* stay with best antenna legacy modulation for a while
* before next round of mode comparisons. */
tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
- if (is_legacy(tbl1->lq_type) &&
- (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) &&
- (lq_sta->action_counter >= 1)) {
+ if (is_legacy(tbl1->lq_type) && !conf->ht.enabled &&
+ lq_sta->action_counter >= 1) {
lq_sta->action_counter = 0;
IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
rs_set_stay_in_table(priv, 1, lq_sta);
@@ -2238,19 +2235,19 @@
* active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
* supp_rates[] does not; shift to convert format, force 9 MBits off.
*/
- lq_sta->active_siso_rate = conf->ht_cap.mcs.rx_mask[0] << 1;
- lq_sta->active_siso_rate |= conf->ht_cap.mcs.rx_mask[0] & 0x1;
+ lq_sta->active_siso_rate = sta->ht_cap.mcs.rx_mask[0] << 1;
+ lq_sta->active_siso_rate |= sta->ht_cap.mcs.rx_mask[0] & 0x1;
lq_sta->active_siso_rate &= ~((u16)0x2);
lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
/* Same here */
- lq_sta->active_mimo2_rate = conf->ht_cap.mcs.rx_mask[1] << 1;
- lq_sta->active_mimo2_rate |= conf->ht_cap.mcs.rx_mask[1] & 0x1;
+ lq_sta->active_mimo2_rate = sta->ht_cap.mcs.rx_mask[1] << 1;
+ lq_sta->active_mimo2_rate |= sta->ht_cap.mcs.rx_mask[1] & 0x1;
lq_sta->active_mimo2_rate &= ~((u16)0x2);
lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
- lq_sta->active_mimo3_rate = conf->ht_cap.mcs.rx_mask[2] << 1;
- lq_sta->active_mimo3_rate |= conf->ht_cap.mcs.rx_mask[2] & 0x1;
+ lq_sta->active_mimo3_rate = sta->ht_cap.mcs.rx_mask[2] << 1;
+ lq_sta->active_mimo3_rate |= sta->ht_cap.mcs.rx_mask[2] & 0x1;
lq_sta->active_mimo3_rate &= ~((u16)0x2);
lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 79a2441..7c3eb3d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -552,17 +552,30 @@
static void iwl4965_ht_conf(struct iwl_priv *priv,
struct ieee80211_bss_conf *bss_conf)
{
- struct ieee80211_sta_ht_cap *ht_conf = bss_conf->ht_cap;
- struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
+ struct ieee80211_sta_ht_cap *ht_conf;
struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
+ struct ieee80211_sta *sta;
IWL_DEBUG_MAC80211("enter: \n");
- iwl_conf->is_ht = bss_conf->assoc_ht;
-
if (!iwl_conf->is_ht)
return;
+
+ /*
+ * It is totally wrong to base global information on something
+ * that is valid only when associated, alas, this driver works
+ * that way and I don't know how to fix it.
+ */
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(priv->hw, priv->bssid);
+ if (!sta) {
+ rcu_read_unlock();
+ return;
+ }
+ ht_conf = &sta->ht_cap;
+
if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
@@ -574,8 +587,8 @@
iwl_conf->supported_chan_width =
!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
- iwl_conf->extension_chan_offset =
- ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+
+ iwl_conf->extension_chan_offset = bss_conf->ht.secondary_channel_offset;
/* If no above or below channel supplied disable FAT channel */
if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) {
@@ -587,15 +600,14 @@
memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
- iwl_conf->control_channel = ht_bss_conf->primary_channel;
- iwl_conf->tx_chan_width =
- !!(ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY);
+ iwl_conf->tx_chan_width = bss_conf->ht.width_40_ok;
iwl_conf->ht_protection =
- ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_PROTECTION;
+ bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
iwl_conf->non_GF_STA_present =
- !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+ !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
- IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
+ rcu_read_unlock();
+
IWL_DEBUG_MAC80211("leave\n");
}
@@ -2746,6 +2758,8 @@
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
+ priv->current_ht_config.is_ht = conf->ht.enabled;
+
if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
goto out;
@@ -3104,7 +3118,6 @@
}
if (changes & BSS_CHANGED_HT) {
- IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
iwl4965_ht_conf(priv, bss_conf);
iwl_set_rxon_chain(priv);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 4678da4..10f5a0a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -637,8 +637,8 @@
}
return iwl_is_channel_extension(priv, priv->band,
- iwl_ht_conf->control_channel,
- iwl_ht_conf->extension_chan_offset);
+ le16_to_cpu(priv->staging_rxon.channel),
+ iwl_ht_conf->extension_chan_offset);
}
EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
@@ -663,13 +663,6 @@
rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
- if (le16_to_cpu(rxon->channel) != ht_info->control_channel) {
- IWL_DEBUG_ASSOC("control diff than current %d %d\n",
- le16_to_cpu(rxon->channel),
- ht_info->control_channel);
- return;
- }
-
/* Note: control channel is opposite of extension channel */
switch (ht_info->extension_chan_offset) {
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
@@ -692,14 +685,12 @@
IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X "
"rxon flags 0x%X operation mode :0x%X "
- "extension channel offset 0x%x "
- "control chan %d\n",
+ "extension channel offset 0x%x\n",
ht_info->mcs.rx_mask[0],
ht_info->mcs.rx_mask[1],
ht_info->mcs.rx_mask[2],
le32_to_cpu(rxon->flags), ht_info->ht_protection,
- ht_info->extension_chan_offset,
- ht_info->control_channel);
+ ht_info->extension_chan_offset);
return;
}
EXPORT_SYMBOL(iwl_set_rxon_ht);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 572250e..2e95149 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -413,7 +413,6 @@
u8 mpdu_density;
struct ieee80211_mcs_info mcs;
/* BSS related data */
- u8 control_channel;
u8 extension_chan_offset;
u8 tx_chan_width;
u8 ht_protection;
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index b9b8554..218483d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -890,20 +890,31 @@
*/
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
{
+ struct ieee80211_sta *sta;
+ struct ieee80211_sta_ht_cap ht_config;
+ struct ieee80211_sta_ht_cap *cur_ht_config = NULL;
u8 sta_id;
/* Add station to device's station table */
- struct ieee80211_conf *conf = &priv->hw->conf;
- struct ieee80211_sta_ht_cap *cur_ht_config = &conf->ht_cap;
- if ((is_ap) &&
- (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
- (priv->iw_mode == NL80211_IFTYPE_STATION))
- sta_id = iwl_add_station_flags(priv, addr, is_ap,
- 0, cur_ht_config);
- else
- sta_id = iwl_add_station_flags(priv, addr, is_ap,
- 0, NULL);
+ /*
+ * XXX: This check is definitely not correct, if we're an AP
+ * it'll always be false which is not what we want, but
+ * it doesn't look like iwlagn is prepared to be an HT
+ * AP anyway.
+ */
+ if (priv->current_ht_config.is_ht) {
+ rcu_read_lock();
+ sta = ieee80211_find_sta(priv->hw, addr);
+ if (sta) {
+ memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
+ cur_ht_config = &ht_config;
+ }
+ rcu_read_unlock();
+ }
+
+ sta_id = iwl_add_station_flags(priv, addr, is_ap,
+ 0, cur_ht_config);
/* Set up default rate scaling table in device's station table */
iwl_sta_init_lq(priv, addr, is_ap);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 94ff3ef..9801afb 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3,7 +3,7 @@
*
* Copyright 2002-2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -82,22 +82,6 @@
};
/**
- * struct ieee80211_ht_bss_info - describing BSS's HT characteristics
- *
- * This structure describes most essential parameters needed
- * to describe 802.11n HT characteristics in a BSS.
- *
- * @primary_channel: channel number of primery channel
- * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width)
- * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection)
- */
-struct ieee80211_ht_bss_info {
- u8 primary_channel;
- u8 bss_cap; /* use IEEE80211_HT_IE_CHA_ */
- u8 bss_op_mode; /* use IEEE80211_HT_IE_ */
-};
-
-/**
* enum ieee80211_max_queues - maximum number of queues
*
* @IEEE80211_MAX_QUEUES: Maximum number of regular device queues.
@@ -172,6 +156,19 @@
};
/**
+ * struct ieee80211_bss_ht_conf - BSS's changing HT configuration
+ * @secondary_channel_offset: secondary channel offset, uses
+ * %IEEE80211_HT_PARAM_CHA_SEC_ values
+ * @width_40_ok: indicates that 40 MHz bandwidth may be used for TX
+ * @operation_mode: HT operation mode (like in &struct ieee80211_ht_info)
+ */
+struct ieee80211_bss_ht_conf {
+ u8 secondary_channel_offset;
+ bool width_40_ok;
+ u16 operation_mode;
+};
+
+/**
* struct ieee80211_bss_conf - holds the BSS's changing parameters
*
* This structure keeps information about a BSS (and an association
@@ -190,9 +187,7 @@
* @timestamp: beacon timestamp
* @beacon_int: beacon interval
* @assoc_capability: capabilities taken from assoc resp
- * @assoc_ht: association in HT mode
- * @ht_cap: ht capabilities
- * @ht_bss_conf: ht extended capabilities
+ * @ht: BSS's HT configuration
* @basic_rates: bitmap of basic rates, each bit stands for an
* index into the rate table configured by the driver in
* the current band.
@@ -210,10 +205,7 @@
u16 assoc_capability;
u64 timestamp;
u64 basic_rates;
- /* ht related data */
- bool assoc_ht;
- struct ieee80211_sta_ht_cap *ht_cap;
- struct ieee80211_ht_bss_info *ht_bss_conf;
+ struct ieee80211_bss_ht_conf ht;
};
/**
@@ -447,13 +439,11 @@
* Flags to define PHY configuration options
*
* @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
- * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported)
* @IEEE80211_CONF_PS: Enable 802.11 power save mode
*/
enum ieee80211_conf_flags {
IEEE80211_CONF_RADIOTAP = (1<<0),
- IEEE80211_CONF_SUPPORT_HT_MODE = (1<<1),
- IEEE80211_CONF_PS = (1<<2),
+ IEEE80211_CONF_PS = (1<<1),
};
/* XXX: remove all this once drivers stop trying to use it */
@@ -463,6 +453,10 @@
}
#define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
+struct ieee80211_ht_conf {
+ bool enabled;
+};
+
/**
* enum ieee80211_conf_changed - denotes which configuration changed
*
@@ -474,6 +468,7 @@
* @IEEE80211_CONF_CHANGE_POWER: the TX power changed
* @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
* @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
+ * @IEEE80211_CONF_CHANGE_HT: HT configuration changed
*/
enum ieee80211_conf_changed {
IEEE80211_CONF_CHANGE_RADIO_ENABLED = BIT(0),
@@ -484,6 +479,7 @@
IEEE80211_CONF_CHANGE_POWER = BIT(5),
IEEE80211_CONF_CHANGE_CHANNEL = BIT(6),
IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(7),
+ IEEE80211_CONF_CHANGE_HT = BIT(8),
};
/**
@@ -496,9 +492,8 @@
* @listen_interval: listen interval in units of beacon interval
* @flags: configuration flags defined above
* @power_level: requested transmit power (in dBm)
- * @ht_cap: describes current self configuration of 802.11n HT capabilities
- * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
* @channel: the channel to tune to
+ * @ht: the HT configuration for the device
* @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
* (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11,
* but actually means the number of transmissions not the number of retries
@@ -517,9 +512,7 @@
u8 long_frame_max_tx_count, short_frame_max_tx_count;
struct ieee80211_channel *channel;
-
- struct ieee80211_sta_ht_cap ht_cap;
- struct ieee80211_ht_bss_info ht_bss_conf;
+ struct ieee80211_ht_conf ht;
};
/**
@@ -715,7 +708,7 @@
* @addr: MAC address
* @aid: AID we assigned to the station if we're an AP
* @supp_rates: Bitmap of supported rates (per band)
- * @ht_cap: HT capabilities of this STA
+ * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities
* @drv_priv: data area for driver use, will always be aligned to
* sizeof(void *), size is determined in hw information.
*/
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 28382b5..55e3a265 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -582,6 +582,8 @@
struct ieee80211_supported_band *sband;
struct ieee80211_sub_if_data *sdata = sta->sdata;
+ sband = local->hw.wiphy->bands[local->oper_channel->band];
+
/*
* FIXME: updating the flags is racy when this function is
* called from ieee80211_change_station(), this will
@@ -622,7 +624,6 @@
if (params->supported_rates) {
rates = 0;
- sband = local->hw.wiphy->bands[local->oper_channel->band];
for (i = 0; i < params->supported_rates_len; i++) {
int rate = (params->supported_rates[i] & 0x7f) * 5;
@@ -635,7 +636,8 @@
}
if (params->ht_capa)
- ieee80211_ht_cap_ie_to_sta_ht_cap(params->ht_capa,
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
+ params->ht_capa,
&sta->sta.ht_cap);
if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index e2d121b..42c3e59 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -20,114 +20,38 @@
#include "sta_info.h"
#include "wme.h"
-void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie,
+void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
+ struct ieee80211_ht_cap *ht_cap_ie,
struct ieee80211_sta_ht_cap *ht_cap)
{
+ u8 ampdu_info, tx_mcs_set_cap;
+ int i, max_tx_streams;
BUG_ON(!ht_cap);
memset(ht_cap, 0, sizeof(*ht_cap));
- if (ht_cap_ie) {
- u8 ampdu_info = ht_cap_ie->ampdu_params_info;
+ if (!ht_cap_ie)
+ return;
- ht_cap->ht_supported = true;
- ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info);
- ht_cap->ampdu_factor =
- ampdu_info & IEEE80211_HT_AMPDU_PARM_FACTOR;
- ht_cap->ampdu_density =
- (ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2;
- memcpy(&ht_cap->mcs, &ht_cap_ie->mcs, sizeof(ht_cap->mcs));
- } else
- ht_cap->ht_supported = false;
-}
+ ht_cap->ht_supported = true;
-void ieee80211_ht_info_ie_to_ht_bss_info(
- struct ieee80211_ht_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info)
-{
- BUG_ON(!bss_info);
+ ht_cap->cap = ht_cap->cap & sband->ht_cap.cap;
+ ht_cap->cap &= ~IEEE80211_HT_CAP_SM_PS;
+ ht_cap->cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS;
- memset(bss_info, 0, sizeof(*bss_info));
-
- if (ht_add_info_ie) {
- u16 op_mode;
- op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
-
- bss_info->primary_channel = ht_add_info_ie->control_chan;
- bss_info->bss_cap = ht_add_info_ie->ht_param;
- bss_info->bss_op_mode = (u8)(op_mode & 0xff);
- }
-}
-
-/*
- * ieee80211_handle_ht should be called only after the operating band
- * has been determined as ht configuration depends on the hw's
- * HT abilities for a specific band.
- */
-u32 ieee80211_handle_ht(struct ieee80211_local *local,
- struct ieee80211_sta_ht_cap *req_ht_cap,
- struct ieee80211_ht_bss_info *req_bss_cap)
-{
- struct ieee80211_conf *conf = &local->hw.conf;
- struct ieee80211_supported_band *sband;
- struct ieee80211_sta_ht_cap ht_cap;
- struct ieee80211_ht_bss_info ht_bss_conf;
- u32 changed = 0;
- int i;
- u8 max_tx_streams;
- u8 tx_mcs_set_cap;
- bool enable_ht = true;
-
- sband = local->hw.wiphy->bands[conf->channel->band];
-
- memset(&ht_cap, 0, sizeof(ht_cap));
- memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info));
-
- /* HT is not supported */
- if (!sband->ht_cap.ht_supported)
- enable_ht = false;
-
- /* disable HT */
- if (!enable_ht) {
- if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)
- changed |= BSS_CHANGED_HT;
- conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
- conf->ht_cap.ht_supported = false;
- return changed;
- }
-
-
- if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE))
- changed |= BSS_CHANGED_HT;
-
- conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
- ht_cap.ht_supported = true;
-
- ht_cap.cap = req_ht_cap->cap & sband->ht_cap.cap;
- ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS;
- ht_cap.cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS;
-
- ht_bss_conf.primary_channel = req_bss_cap->primary_channel;
- ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
- ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
-
- ht_cap.ampdu_factor = req_ht_cap->ampdu_factor;
- ht_cap.ampdu_density = req_ht_cap->ampdu_density;
+ ampdu_info = ht_cap_ie->ampdu_params_info;
+ ht_cap->ampdu_factor =
+ ampdu_info & IEEE80211_HT_AMPDU_PARM_FACTOR;
+ ht_cap->ampdu_density =
+ (ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2;
/* own MCS TX capabilities */
tx_mcs_set_cap = sband->ht_cap.mcs.tx_params;
- /*
- * configure supported Tx MCS according to requested MCS
- * (based in most cases on Rx capabilities of peer) and self
- * Tx MCS capabilities (as defined by low level driver HW
- * Tx capabilities)
- */
-
/* can we TX with MCS rates? */
if (!(tx_mcs_set_cap & IEEE80211_HT_MCS_TX_DEFINED))
- goto check_changed;
+ return;
/* Counting from 0, therefore +1 */
if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_RX_DIFF)
@@ -145,29 +69,73 @@
* - remainder are multiple spatial streams using unequal modulation
*/
for (i = 0; i < max_tx_streams; i++)
- ht_cap.mcs.rx_mask[i] =
- sband->ht_cap.mcs.rx_mask[i] &
- req_ht_cap->mcs.rx_mask[i];
+ ht_cap->mcs.rx_mask[i] =
+ sband->ht_cap.mcs.rx_mask[i] & ht_cap_ie->mcs.rx_mask[i];
if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION)
for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE;
i < IEEE80211_HT_MCS_MASK_LEN; i++)
- ht_cap.mcs.rx_mask[i] =
+ ht_cap->mcs.rx_mask[i] =
sband->ht_cap.mcs.rx_mask[i] &
- req_ht_cap->mcs.rx_mask[i];
+ ht_cap_ie->mcs.rx_mask[i];
/* handle MCS rate 32 too */
- if (sband->ht_cap.mcs.rx_mask[32/8] &
- req_ht_cap->mcs.rx_mask[32/8] & 1)
- ht_cap.mcs.rx_mask[32/8] |= 1;
+ if (sband->ht_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1)
+ ht_cap->mcs.rx_mask[32/8] |= 1;
+}
- check_changed:
+/*
+ * ieee80211_enable_ht should be called only after the operating band
+ * has been determined as ht configuration depends on the hw's
+ * HT abilities for a specific band.
+ */
+u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_ht_info *hti,
+ u16 ap_ht_cap_flags)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_bss_ht_conf ht;
+ u32 changed = 0;
+ bool enable_ht = true, ht_changed;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+ memset(&ht, 0, sizeof(ht));
+
+ /* HT is not supported */
+ if (!sband->ht_cap.ht_supported)
+ enable_ht = false;
+
+ /* check that channel matches the right operating channel */
+ if (local->hw.conf.channel->center_freq !=
+ ieee80211_channel_to_frequency(hti->control_chan))
+ enable_ht = false;
+
+ /*
+ * XXX: This is totally incorrect when there are multiple virtual
+ * interfaces, needs to be fixed later.
+ */
+ ht_changed = local->hw.conf.ht.enabled != enable_ht;
+ local->hw.conf.ht.enabled = enable_ht;
+ if (ht_changed)
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
+
+ /* disable HT */
+ if (!enable_ht)
+ return 0;
+ ht.secondary_channel_offset =
+ hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+ ht.width_40_ok =
+ !(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+ (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+ (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY);
+ ht.operation_mode = le16_to_cpu(hti->operation_mode);
+
/* if bss configuration changed store the new one */
- if (memcmp(&conf->ht_cap, &ht_cap, sizeof(ht_cap)) ||
- memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) {
+ if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
changed |= BSS_CHANGED_HT;
- memcpy(&conf->ht_cap, &ht_cap, sizeof(ht_cap));
- memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf));
+ sdata->vif.bss_conf.ht = ht;
}
return changed;
@@ -900,8 +868,9 @@
/* sanity check for incoming parameters:
* check if configuration can support the BA policy
* and if buffer size does not exceeds max value */
+ /* XXX: check own ht delayed BA capability?? */
if (((ba_policy != 1)
- && (!(conf->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA)))
+ && (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA)))
|| (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
status = WLAN_STATUS_INVALID_QOS_PARAM;
#ifdef CONFIG_MAC80211_HT_DEBUG
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 859b5b0..6f8756d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -955,14 +955,12 @@
int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
/* HT */
-void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie,
+void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
+ struct ieee80211_ht_cap *ht_cap_ie,
struct ieee80211_sta_ht_cap *ht_cap);
-void ieee80211_ht_info_ie_to_ht_bss_info(
- struct ieee80211_ht_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info);
-u32 ieee80211_handle_ht(struct ieee80211_local *local,
- struct ieee80211_sta_ht_cap *req_ht_cap,
- struct ieee80211_ht_bss_info *req_bss_cap);
+u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_ht_info *hti,
+ u16 ap_ht_cap_flags);
void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9c5f5c3..39bc9c6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -700,14 +700,15 @@
static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+ struct ieee80211_if_sta *ifsta,
+ u32 bss_info_changed)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_conf *conf = &local_to_hw(local)->conf;
- u32 changed = BSS_CHANGED_ASSOC;
struct ieee80211_bss *bss;
+ bss_info_changed |= BSS_CHANGED_ASSOC;
ifsta->flags |= IEEE80211_STA_ASSOCIATED;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
@@ -722,19 +723,12 @@
sdata->vif.bss_conf.timestamp = bss->timestamp;
sdata->vif.bss_conf.dtim_period = bss->dtim_period;
- changed |= ieee80211_handle_bss_capability(sdata,
+ bss_info_changed |= ieee80211_handle_bss_capability(sdata,
bss->capability, bss->has_erp_value, bss->erp_value);
ieee80211_rx_bss_put(local, bss);
}
- if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
- changed |= BSS_CHANGED_HT;
- sdata->vif.bss_conf.assoc_ht = 1;
- sdata->vif.bss_conf.ht_cap = &conf->ht_cap;
- sdata->vif.bss_conf.ht_bss_conf = &conf->ht_bss_conf;
- }
-
ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
ieee80211_sta_send_associnfo(sdata, ifsta);
@@ -748,8 +742,8 @@
* when we have associated, we aren't checking whether it actually
* changed or not.
*/
- changed |= BSS_CHANGED_BASIC_RATES;
- ieee80211_bss_info_change_notify(sdata, changed);
+ bss_info_changed |= BSS_CHANGED_BASIC_RATES;
+ ieee80211_bss_info_change_notify(sdata, bss_info_changed);
netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
@@ -813,7 +807,7 @@
{
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- u32 changed = BSS_CHANGED_ASSOC;
+ u32 changed = 0;
rcu_read_lock();
@@ -847,15 +841,9 @@
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
changed |= ieee80211_reset_erp_info(sdata);
- if (sdata->vif.bss_conf.assoc_ht)
- changed |= BSS_CHANGED_HT;
-
- sdata->vif.bss_conf.assoc_ht = 0;
- sdata->vif.bss_conf.ht_cap = NULL;
- sdata->vif.bss_conf.ht_bss_conf = NULL;
-
ieee80211_led_assoc(local, 0);
- sdata->vif.bss_conf.assoc = 0;
+ changed |= BSS_CHANGED_ASSOC;
+ sdata->vif.bss_conf.assoc = false;
ieee80211_sta_send_apinfo(sdata, ifsta);
@@ -867,6 +855,11 @@
rcu_read_unlock();
sta_info_destroy(sta);
+
+ local->hw.conf.ht.enabled = false;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
+
+ ieee80211_bss_info_change_notify(sdata, changed);
}
static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
@@ -1184,8 +1177,10 @@
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u8 *pos;
+ u32 changed = 0;
int i, j;
bool have_higher_than_11mbit = false;
+ u16 ap_ht_cap_flags;
/* AssocResp and ReassocResp have identical structure, so process both
* of them in this function. */
@@ -1333,15 +1328,11 @@
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
- (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- struct ieee80211_ht_bss_info bss_info;
- ieee80211_ht_cap_ie_to_sta_ht_cap(
+ if (elems.ht_cap_elem)
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
- ieee80211_ht_info_ie_to_ht_bss_info(
- elems.ht_info_elem, &bss_info);
- ieee80211_handle_ht(local, &sta->sta.ht_cap, &bss_info);
- }
+
+ ap_ht_cap_flags = sta->sta.ht_cap.cap;
rate_control_rate_init(sta);
@@ -1353,11 +1344,16 @@
} else
rcu_read_unlock();
+ if (elems.ht_info_elem && elems.wmm_param &&
+ (ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+ changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
+ ap_ht_cap_flags);
+
/* set AID and assoc capability,
* ieee80211_set_associated() will tell the driver */
bss_conf->aid = aid;
bss_conf->assoc_capability = capab_info;
- ieee80211_set_associated(sdata, ifsta);
+ ieee80211_set_associated(sdata, ifsta, changed);
ieee80211_associated(sdata, ifsta);
}
@@ -1657,7 +1653,6 @@
size_t baselen;
struct ieee802_11_elems elems;
struct ieee80211_local *local = sdata->local;
- struct ieee80211_conf *conf = &local->hw.conf;
u32 changed = 0;
bool erp_valid;
u8 erp_value = 0;
@@ -1693,14 +1688,31 @@
le16_to_cpu(mgmt->u.beacon.capab_info),
erp_valid, erp_value);
- if (elems.ht_cap_elem && elems.ht_info_elem &&
- elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
- struct ieee80211_ht_bss_info bss_info;
- ieee80211_ht_info_ie_to_ht_bss_info(
- elems.ht_info_elem, &bss_info);
- changed |= ieee80211_handle_ht(local, &conf->ht_cap,
- &bss_info);
+ if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param) {
+ struct sta_info *sta;
+ struct ieee80211_supported_band *sband;
+ u16 ap_ht_cap_flags;
+
+ rcu_read_lock();
+
+ sta = sta_info_get(local, ifsta->bssid);
+ if (!sta) {
+ rcu_read_unlock();
+ return;
+ }
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
+ elems.ht_cap_elem, &sta->sta.ht_cap);
+
+ ap_ht_cap_flags = sta->sta.ht_cap.cap;
+
+ rcu_read_unlock();
+
+ changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
+ ap_ht_cap_flags);
}
ieee80211_bss_info_change_notify(sdata, changed);