diff options
| -rw-r--r-- | include/net/mac80211.h | 4 | ||||
| -rw-r--r-- | net/mac80211/Makefile | 3 | ||||
| -rw-r--r-- | net/mac80211/eht.c | 76 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 7 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 15 | ||||
| -rw-r--r-- | net/mac80211/vht.c | 16 |
6 files changed, 118 insertions, 3 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 586d3c26c8ac..f118b8fe667a 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -636,6 +636,7 @@ struct ieee80211_fils_discovery { * @tx_pwr_env: transmit power envelope array of BSS. * @tx_pwr_env_num: number of @tx_pwr_env. * @pwr_reduction: power constraint of BSS. + * @eht_support: does this BSS support EHT */ struct ieee80211_bss_conf { const u8 *bssid; @@ -710,6 +711,7 @@ struct ieee80211_bss_conf { struct ieee80211_tx_pwr_env tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT]; u8 tx_pwr_env_num; u8 pwr_reduction; + bool eht_support; }; /** @@ -2071,6 +2073,7 @@ struct ieee80211_sta_txpwr { * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities * @he_cap: HE capabilities of this STA * @he_6ghz_capa: on 6 GHz, holds the HE 6 GHz band capabilities + * @eht_cap: EHT capabilities of this STA * @max_rx_aggregation_subframes: maximal amount of frames in a single AMPDU * that this station is allowed to transmit to us. * Can be modified by driver. @@ -2111,6 +2114,7 @@ struct ieee80211_sta { struct ieee80211_sta_vht_cap vht_cap; struct ieee80211_sta_he_cap he_cap; struct ieee80211_he_6ghz_capa he_6ghz_capa; + struct ieee80211_sta_eht_cap eht_cap; u16 max_rx_aggregation_subframes; bool wme; u8 uapsd_queues; diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index 23d25e8b2358..af1df3a6bd55 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -34,7 +34,8 @@ mac80211-y := \ trace.o mlme.o \ tdls.o \ ocb.o \ - airtime.o + airtime.o \ + eht.o mac80211-$(CONFIG_MAC80211_LEDS) += led.o mac80211-$(CONFIG_MAC80211_DEBUGFS) += \ diff --git a/net/mac80211/eht.c b/net/mac80211/eht.c new file mode 100644 index 000000000000..364ad0ef7692 --- /dev/null +++ b/net/mac80211/eht.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * EHT handling + * + * Copyright(c) 2021-2022 Intel Corporation + */ + +#include "ieee80211_i.h" + +void +ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const u8 *he_cap_ie, u8 he_cap_len, + const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, + u8 eht_cap_len, struct sta_info *sta) +{ + struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.eht_cap; + struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie; + u8 eht_ppe_size = 0; + u8 mcs_nss_size; + u8 eht_total_size = sizeof(eht_cap->eht_cap_elem); + u8 *pos = (u8 *)eht_cap_ie_elem; + + memset(eht_cap, 0, sizeof(*eht_cap)); + + if (!eht_cap_ie_elem || + !ieee80211_get_eht_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif))) + return; + + mcs_nss_size = ieee80211_eht_mcs_nss_size(he_cap_ie_elem, + &eht_cap_ie_elem->fixed); + + eht_total_size += mcs_nss_size; + + /* Calculate the PPE thresholds length only if the header is present */ + if (eht_cap_ie_elem->fixed.phy_cap_info[5] & + IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { + u16 eht_ppe_hdr; + + if (eht_cap_len < eht_total_size + sizeof(u16)) + return; + + eht_ppe_hdr = get_unaligned_le16(eht_cap_ie_elem->optional + mcs_nss_size); + eht_ppe_size = + ieee80211_eht_ppe_size(eht_ppe_hdr, + eht_cap_ie_elem->fixed.phy_cap_info); + eht_total_size += eht_ppe_size; + + /* we calculate as if NSS > 8 are valid, but don't handle that */ + if (eht_ppe_size > sizeof(eht_cap->eht_ppe_thres)) + return; + } + + if (eht_cap_len < eht_total_size) + return; + + /* Copy the static portion of the EHT capabilities */ + memcpy(&eht_cap->eht_cap_elem, pos, sizeof(eht_cap->eht_cap_elem)); + pos += sizeof(eht_cap->eht_cap_elem); + + /* Copy MCS/NSS which depends on the peer capabilities */ + memset(&eht_cap->eht_mcs_nss_supp, 0, + sizeof(eht_cap->eht_mcs_nss_supp)); + memcpy(&eht_cap->eht_mcs_nss_supp, pos, mcs_nss_size); + + if (eht_ppe_size) + memcpy(eht_cap->eht_ppe_thres, + &eht_cap_ie_elem->optional[mcs_nss_size], + eht_ppe_size); + + eht_cap->has_eht = true; + + sta->cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta); + sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta); +} diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 39844267f09e..6a2421a066fb 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2525,4 +2525,11 @@ u8 *ieee80211_ie_build_eht_cap(u8 *pos, const struct ieee80211_sta_he_cap *he_cap, const struct ieee80211_sta_eht_cap *eht_cap, u8 *end); + +void +ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const u8 *he_cap_ie, u8 he_cap_len, + const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, + u8 eht_cap_len, struct sta_info *sta); #endif /* IEEE80211_I_H */ diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 752aa8734af6..197cad4a2768 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3579,10 +3579,25 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, bss_conf->twt_protected = false; changed |= ieee80211_recalc_twt_req(sdata, sta, elems); + + if (elems->eht_operation && elems->eht_cap && + !(ifmgd->flags & IEEE80211_STA_DISABLE_EHT)) { + ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, + elems->he_cap, + elems->he_cap_len, + elems->eht_cap, + elems->eht_cap_len, + sta); + + bss_conf->eht_support = sta->sta.eht_cap.has_eht; + } else { + bss_conf->eht_support = false; + } } else { bss_conf->he_support = false; bss_conf->twt_requester = false; bss_conf->twt_protected = false; + bss_conf->eht_support = false; } bss_conf->twt_broadcast = diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 904611d681cb..409d2fde83bf 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -329,15 +329,27 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, } } -/* FIXME: move this to some better location - parses HE now */ +/* FIXME: move this to some better location - parses HE/EHT now */ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta) { struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap; struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap; + struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.eht_cap; u32 cap_width; if (he_cap->has_he) { - u8 info = he_cap->he_cap_elem.phy_cap_info[0]; + u8 info; + + if (eht_cap->has_eht && + sta->sdata->vif.bss_conf.chandef.chan->band == + NL80211_BAND_6GHZ) { + info = eht_cap->eht_cap_elem.phy_cap_info[0]; + + if (info & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ) + return IEEE80211_STA_RX_BW_320; + } + + info = he_cap->he_cap_elem.phy_cap_info[0]; if (sta->sdata->vif.bss_conf.chandef.chan->band == NL80211_BAND_2GHZ) { |