Commit 822854b0 authored by Simon Wunderlich's avatar Simon Wunderlich Committed by Johannes Berg
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mac80211: enable HT overrides for ibss


Signed-off-by: default avatarSimon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: default avatarMathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
parent 803768f5
...@@ -19,13 +19,14 @@ ...@@ -19,13 +19,14 @@
#include "ieee80211_i.h" #include "ieee80211_i.h"
#include "rate.h" #include "rate.h"
static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata, static void __check_htcap_disable(struct ieee80211_ht_cap *ht_capa,
struct ieee80211_ht_cap *ht_capa_mask,
struct ieee80211_sta_ht_cap *ht_cap, struct ieee80211_sta_ht_cap *ht_cap,
u16 flag) u16 flag)
{ {
__le16 le_flag = cpu_to_le16(flag); __le16 le_flag = cpu_to_le16(flag);
if (sdata->u.mgd.ht_capa_mask.cap_info & le_flag) { if (ht_capa_mask->cap_info & le_flag) {
if (!(sdata->u.mgd.ht_capa.cap_info & le_flag)) if (!(ht_capa->cap_info & le_flag))
ht_cap->cap &= ~flag; ht_cap->cap &= ~flag;
} }
} }
...@@ -33,13 +34,30 @@ static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata, ...@@ -33,13 +34,30 @@ static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata,
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap) struct ieee80211_sta_ht_cap *ht_cap)
{ {
u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask); struct ieee80211_ht_cap *ht_capa, *ht_capa_mask;
u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask); u8 *scaps, *smask;
int i; int i;
if (!ht_cap->ht_supported) if (!ht_cap->ht_supported)
return; return;
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
ht_capa = &sdata->u.mgd.ht_capa;
ht_capa_mask = &sdata->u.mgd.ht_capa_mask;
break;
case NL80211_IFTYPE_ADHOC:
ht_capa = &sdata->u.ibss.ht_capa;
ht_capa_mask = &sdata->u.ibss.ht_capa_mask;
break;
default:
WARN_ON_ONCE(1);
return;
}
scaps = (u8 *)(&ht_capa->mcs.rx_mask);
smask = (u8 *)(&ht_capa_mask->mcs.rx_mask);
/* NOTE: If you add more over-rides here, update register_hw /* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well. * ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix * And, if this method can ever change ht_cap.ht_supported, fix
...@@ -55,28 +73,32 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, ...@@ -55,28 +73,32 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
} }
/* Force removal of HT-40 capabilities? */ /* Force removal of HT-40 capabilities? */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40); __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40); IEEE80211_HT_CAP_SUP_WIDTH_20_40);
__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */ /* Allow user to disable SGI-20 (SGI-40 is handled above) */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_20); __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */ /* Allow user to disable the max-AMSDU bit. */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU); __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_MAX_AMSDU);
/* Allow user to decrease AMPDU factor */ /* Allow user to decrease AMPDU factor */
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info & if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) { IEEE80211_HT_AMPDU_PARM_FACTOR) {
u8 n = sdata->u.mgd.ht_capa.ampdu_params_info u8 n = ht_capa->ampdu_params_info &
& IEEE80211_HT_AMPDU_PARM_FACTOR; IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor) if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n; ht_cap->ampdu_factor = n;
} }
/* Allow the user to increase AMPDU density. */ /* Allow the user to increase AMPDU density. */
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info & if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) { IEEE80211_HT_AMPDU_PARM_DENSITY) {
u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info & u8 n = (ht_capa->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT; >> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density) if (n > ht_cap->ampdu_density)
...@@ -112,7 +134,8 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, ...@@ -112,7 +134,8 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
* we advertised a restricted capability set to. Override * we advertised a restricted capability set to. Override
* our own capabilities and then use those below. * our own capabilities and then use those below.
*/ */
if (sdata->vif.type == NL80211_IFTYPE_STATION && if ((sdata->vif.type == NL80211_IFTYPE_STATION ||
sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) !test_sta_flag(sta, WLAN_STA_TDLS_PEER))
ieee80211_apply_htcap_overrides(sdata, &own_cap); ieee80211_apply_htcap_overrides(sdata, &own_cap);
......
...@@ -179,8 +179,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, ...@@ -179,8 +179,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
chandef.width != NL80211_CHAN_WIDTH_5 && chandef.width != NL80211_CHAN_WIDTH_5 &&
chandef.width != NL80211_CHAN_WIDTH_10 && chandef.width != NL80211_CHAN_WIDTH_10 &&
sband->ht_cap.ht_supported) { sband->ht_cap.ht_supported) {
pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, struct ieee80211_sta_ht_cap ht_cap;
sband->ht_cap.cap);
memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
ieee80211_apply_htcap_overrides(sdata, &ht_cap);
pos = ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap);
/* /*
* Note: According to 802.11n-2009 9.13.3.1, HT Protection * Note: According to 802.11n-2009 9.13.3.1, HT Protection
* field and RIFS Mode are reserved in IBSS mode, therefore * field and RIFS Mode are reserved in IBSS mode, therefore
...@@ -1051,6 +1055,11 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, ...@@ -1051,6 +1055,11 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len); memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len);
sdata->u.ibss.ssid_len = params->ssid_len; sdata->u.ibss.ssid_len = params->ssid_len;
memcpy(&sdata->u.ibss.ht_capa, &params->ht_capa,
sizeof(sdata->u.ibss.ht_capa));
memcpy(&sdata->u.ibss.ht_capa_mask, &params->ht_capa_mask,
sizeof(sdata->u.ibss.ht_capa_mask));
/* /*
* 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is * 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is
* reserved, but an HT STA shall protect HT transmissions as though * reserved, but an HT STA shall protect HT transmissions as though
...@@ -1131,6 +1140,11 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) ...@@ -1131,6 +1140,11 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
presp = rcu_dereference_protected(ifibss->presp, presp = rcu_dereference_protected(ifibss->presp,
lockdep_is_held(&sdata->wdev.mtx)); lockdep_is_held(&sdata->wdev.mtx));
RCU_INIT_POINTER(sdata->u.ibss.presp, NULL); RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
/* on the next join, re-program HT parameters */
memset(&ifibss->ht_capa, 0, sizeof(ifibss->ht_capa));
memset(&ifibss->ht_capa_mask, 0, sizeof(ifibss->ht_capa_mask));
sdata->vif.bss_conf.ibss_joined = false; sdata->vif.bss_conf.ibss_joined = false;
sdata->vif.bss_conf.ibss_creator = false; sdata->vif.bss_conf.ibss_creator = false;
sdata->vif.bss_conf.enable_beacon = false; sdata->vif.bss_conf.enable_beacon = false;
......
...@@ -509,6 +509,9 @@ struct ieee80211_if_ibss { ...@@ -509,6 +509,9 @@ struct ieee80211_if_ibss {
/* probe response/beacon for IBSS */ /* probe response/beacon for IBSS */
struct beacon_data __rcu *presp; struct beacon_data __rcu *presp;
struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
spinlock_t incomplete_lock; spinlock_t incomplete_lock;
struct list_head incomplete_stations; struct list_head incomplete_stations;
......
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