Commit ae5eb026 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville

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: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bda3933a
......@@ -380,7 +380,6 @@ void ath_rx_cleanup(struct ath_softc *sc);
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 @@ struct ath_node {
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 @@ enum RATE_TYPE {
struct ath_ht_info {
enum ath9k_ht_macmode tx_chan_width;
u16 maxampdu;
u8 mpdudensity;
u8 ext_chan_offset;
};
......
......@@ -330,25 +330,15 @@ static void ath9k_ht_conf(struct ath_softc *sc,
{
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 (!(bss_conf->ht_cap->cap &
IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
(bss_conf->ht_bss_conf->bss_cap &
IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
if (sc->hw->conf.ht.enabled) {
ht_info->ext_chan_offset = bss_conf->ht.secondary_channel_offset;
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 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
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 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
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 @@ int _ath_rx_indicate(struct ath_softc *sc,
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 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
__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 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
(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 @@ static void ath9k_sta_notify(struct ieee80211_hw *hw,
} 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 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
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);
}
......
......@@ -1838,7 +1838,7 @@ void ath_rc_node_update(struct ieee80211_hw *hw, struct ath_rate_node *rc_priv)
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 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
/* 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 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
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;
......
......@@ -720,12 +720,11 @@ void ath_flushrecv(struct ath_softc *sc)
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 {
......
......@@ -300,7 +300,8 @@ static int ath_tx_prepare(struct ath_softc *sc,
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 int ath_tx_send_ampdu(struct ath_softc *sc,
*/
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 @@ static u32 ath_lookup_rate(struct ath_softc *sc,
* 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 u32 ath_lookup_rate(struct ath_softc *sc,
*/
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 @@ static int ath_compute_num_delims(struct ath_softc *sc,
* 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 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
}
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 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
* 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 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
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
......
......@@ -1133,8 +1133,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
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 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
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 @@ lq_update:
* 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 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
* 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;
......
......@@ -552,17 +552,30 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
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 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
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 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
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);
rcu_read_unlock();
IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
IWL_DEBUG_MAC80211("leave\n");
}
......@@ -2746,6 +2758,8 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, u32 changed)
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 @@ static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
}
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);
}
......
......@@ -637,8 +637,8 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
}
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 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
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 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
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);
......
......@@ -413,7 +413,6 @@ struct iwl_ht_info {
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;
......
......@@ -890,20 +890,31 @@ static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap)
*/
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);
......
......@@ -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
......@@ -81,22 +81,6 @@ enum ieee80211_notification_types {
IEEE80211_NOTIFY_RE_ASSOC,
};
/**
* 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
*
......@@ -171,6 +155,19 @@ enum ieee80211_bss_change {
BSS_CHANGED_BASIC_RATES = 1<<5,
};
/**
* 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
*
......@@ -190,9 +187,7 @@ enum ieee80211_bss_change {
* @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 @@ struct ieee80211_bss_conf {
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 @@ struct ieee80211_rx_status {
* 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 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
}
#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 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
* @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 @@ enum ieee80211_conf_changed {
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 @@ enum ieee80211_conf_changed {
* @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 @@ struct ieee80211_conf {
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 @@ enum set_key_cmd {
* @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.
*/
......
......@@ -582,6 +582,8 @@ static void sta_apply_parameters(struct ieee80211_local *local,
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 @@ static void sta_apply_parameters(struct ieee80211_local *local,
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 @@ static void sta_apply_parameters(struct ieee80211_local *local,
}
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) {
......
......@@ -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;
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;
}
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);
memset(bss_info, 0, sizeof(*bss_info));