diff options
Diffstat (limited to 'net/mac80211/vht.c')
| -rw-r--r-- | net/mac80211/vht.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index c38b2f0..89e04d5 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -1,6 +1,9 @@ /* * VHT handling * + * Portions of this file + * Copyright(c) 2015 - 2016 Intel Deutschland GmbH + * * 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 * published by the Free Software Foundation. @@ -278,6 +281,23 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, } sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta); + + /* If HT IE reported 3839 bytes only, stay with that size. */ + if (sta->sta.max_amsdu_len == IEEE80211_MAX_MPDU_LEN_HT_3839) + return; + + switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) { + case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: + sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; + break; + case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: + sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; + break; + case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: + default: + sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; + break; + } } enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta) @@ -425,6 +445,43 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, return changed; } +void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt) +{ + struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; + + if (!sdata->vif.mu_mimo_owner) + return; + + if (!memcmp(mgmt->u.action.u.vht_group_notif.position, + bss_conf->mu_group.position, WLAN_USER_POSITION_LEN) && + !memcmp(mgmt->u.action.u.vht_group_notif.membership, + bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN)) + return; + + memcpy(bss_conf->mu_group.membership, + mgmt->u.action.u.vht_group_notif.membership, + WLAN_MEMBERSHIP_LEN); + memcpy(bss_conf->mu_group.position, + mgmt->u.action.u.vht_group_notif.position, + WLAN_USER_POSITION_LEN); + + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); +} + +void ieee80211_update_mu_groups(struct ieee80211_vif *vif, + const u8 *membership, const u8 *position) +{ + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + + if (WARN_ON_ONCE(!vif->mu_mimo_owner)) + return; + + memcpy(bss_conf->mu_group.membership, membership, WLAN_MEMBERSHIP_LEN); + memcpy(bss_conf->mu_group.position, position, WLAN_USER_POSITION_LEN); +} +EXPORT_SYMBOL_GPL(ieee80211_update_mu_groups); + void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, u8 opmode, enum ieee80211_band band) |