Add support for HE in mac80211 conforming with P802.11ax_D1.4.
Johannes: Fix another bug with the buf_size comparison in agg-rx.c.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include <net/codel.h>
+#include <net/ieee80211_radiotap.h>
#include <asm/unaligned.h>
/**
* @txop: maximum burst time in units of 32 usecs, 0 meaning disabled
* @acm: is mandatory admission control required for the access category
* @uapsd: is U-APSD mode enabled for the queue
+ * @mu_edca: is the MU EDCA configured
+ * @mu_edca_param_rec: MU EDCA Parameter Record for HE
*/
struct ieee80211_tx_queue_params {
u16 txop;
u8 aifs;
bool acm;
bool uapsd;
+ bool mu_edca;
+ struct ieee80211_he_mu_edca_param_ac_rec mu_edca_param_rec;
};
struct ieee80211_low_level_stats {
* This structure keeps information about a BSS (and an association
* to that BSS) that can change during the lifetime of the BSS.
*
+ * @bss_color: 6-bit value to mark inter-BSS frame, if BSS supports HE
+ * @htc_trig_based_pkt_ext: default PE in 4us units, if BSS supports HE
+ * @multi_sta_back_32bit: supports BA bitmap of 32-bits in Multi-STA BACK
+ * @uora_exists: is the UORA element advertised by AP
+ * @ack_enabled: indicates support to receive a multi-TID that solicits either
+ * ACK, BACK or both
+ * @uora_ocw_range: UORA element's OCW Range field
+ * @frame_time_rts_th: HE duration RTS threshold, in units of 32us
+ * @he_support: does this BSS support HE
* @assoc: association status
* @ibss_joined: indicates whether this station is part of an IBSS
* or not
*/
struct ieee80211_bss_conf {
const u8 *bssid;
+ u8 bss_color;
+ u8 htc_trig_based_pkt_ext;
+ bool multi_sta_back_32bit;
+ bool uora_exists;
+ bool ack_enabled;
+ u8 uora_ocw_range;
+ u16 frame_time_rts_th;
+ bool he_support;
/* association related data */
bool assoc, ibss_joined;
bool ibss_creator;
* @RX_FLAG_AMPDU_EOF_BIT: Value of the EOF bit in the A-MPDU delimiter for this
* frame
* @RX_FLAG_AMPDU_EOF_BIT_KNOWN: The EOF value is known
+ * @RX_FLAG_RADIOTAP_HE: HE radiotap data is present
+ * (&struct ieee80211_radiotap_he, mac80211 will fill in
+ * - DATA3_DATA_MCS
+ * - DATA3_DATA_DCM
+ * - DATA3_CODING
+ * - DATA5_GI
+ * - DATA5_DATA_BW_RU_ALLOC
+ * - DATA6_NSTS
+ * - DATA3_STBC
+ * from the RX info data, so leave those zeroed when building this data)
+ * @RX_FLAG_RADIOTAP_HE_MU: HE MU radiotap data is present
+ * (&struct ieee80211_radiotap_he_mu)
*/
enum mac80211_rx_flags {
RX_FLAG_MMIC_ERROR = BIT(0),
RX_FLAG_ICV_STRIPPED = BIT(23),
RX_FLAG_AMPDU_EOF_BIT = BIT(24),
RX_FLAG_AMPDU_EOF_BIT_KNOWN = BIT(25),
+ RX_FLAG_RADIOTAP_HE = BIT(26),
+ RX_FLAG_RADIOTAP_HE_MU = BIT(27),
};
/**
RX_ENC_LEGACY = 0,
RX_ENC_HT,
RX_ENC_VHT,
+ RX_ENC_HE,
};
/**
* @encoding: &enum mac80211_rx_encoding
* @bw: &enum rate_info_bw
* @enc_flags: uses bits from &enum mac80211_rx_encoding_flags
+ * @he_ru: HE RU, from &enum nl80211_he_ru_alloc
+ * @he_gi: HE GI, from &enum nl80211_he_gi
+ * @he_dcm: HE DCM value
* @rx_flags: internal RX flags for mac80211
* @ampdu_reference: A-MPDU reference number, must be a different value for
* each A-MPDU but the same for each subframe within one A-MPDU
u32 flag;
u16 freq;
u8 enc_flags;
- u8 encoding:2, bw:3;
+ u8 encoding:2, bw:3, he_ru:3;
+ u8 he_gi:2, he_dcm:1;
u8 rate_idx;
u8 nss;
u8 rx_flags;
* @supp_rates: Bitmap of supported rates (per band)
* @ht_cap: HT capabilities of this STA; restricted to our own capabilities
* @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
+ * @he_cap: HE 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.
u16 aid;
struct ieee80211_sta_ht_cap ht_cap;
struct ieee80211_sta_vht_cap vht_cap;
- u8 max_rx_aggregation_subframes;
+ struct ieee80211_sta_he_cap he_cap;
+ u16 max_rx_aggregation_subframes;
bool wme;
u8 uapsd_queues;
u8 max_sp;
* it shouldn't be set.
*
* @max_tx_aggregation_subframes: maximum number of subframes in an
- * aggregate an HT driver will transmit. Though ADDBA will advertise
- * a constant value of 64 as some older APs can crash if the window
- * size is smaller (an example is LinkSys WRT120N with FW v1.0.07
- * build 002 Jun 18 2012).
+ * aggregate an HT/HE device will transmit. In HT AddBA we'll
+ * advertise a constant value of 64 as some older APs crash if
+ * the window size is smaller (an example is LinkSys WRT120N
+ * with FW v1.0.07 build 002 Jun 18 2012).
+ * For AddBA to HE capable peers this value will be used.
*
* @max_tx_fragments: maximum number of tx buffers per (A)-MSDU, sum
* of 1 + skb_shinfo(skb)->nr_frags for each skb in the frag_list.
* the default is _GI | _BANDWIDTH.
* Use the %IEEE80211_RADIOTAP_VHT_KNOWN_\* values.
*
+ * @radiotap_he: HE radiotap validity flags
+ *
* @radiotap_timestamp: Information for the radiotap timestamp field; if the
* 'units_pos' member is set to a non-negative value it must be set to
* a combination of a IEEE80211_RADIOTAP_TIMESTAMP_UNIT_* and a
u8 max_rates;
u8 max_report_rates;
u8 max_rate_tries;
- u8 max_rx_aggregation_subframes;
- u8 max_tx_aggregation_subframes;
+ u16 max_rx_aggregation_subframes;
+ u16 max_tx_aggregation_subframes;
u8 max_tx_fragments;
u8 offchannel_tx_hw_queue;
u8 radiotap_mcs_details;
struct ieee80211_sta *sta;
u16 tid;
u16 ssn;
- u8 buf_size;
+ u16 buf_size;
bool amsdu;
u16 timeout;
};
scan.o offchannel.o \
ht.o agg-tx.o agg-rx.o \
vht.o \
+ he.o \
ibss.o \
iface.o \
rate.o \
};
int i, ret = -EOPNOTSUPP;
u16 status = WLAN_STATUS_REQUEST_DECLINED;
+ u16 max_buf_size;
if (tid >= IEEE80211_FIRST_TSPEC_TSID) {
ht_dbg(sta->sdata,
goto end;
}
+ if (sta->sta.he_cap.has_he)
+ max_buf_size = IEEE80211_MAX_AMPDU_BUF;
+ else
+ max_buf_size = IEEE80211_MAX_AMPDU_BUF_HT;
+
/* 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) &&
(!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) ||
- (buf_size > IEEE80211_MAX_AMPDU_BUF_HT)) {
+ (buf_size > max_buf_size)) {
status = WLAN_STATUS_INVALID_QOS_PARAM;
ht_dbg_ratelimited(sta->sdata,
"AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n",
}
/* determine default buffer size */
if (buf_size == 0)
- buf_size = IEEE80211_MAX_AMPDU_BUF_HT;
+ buf_size = max_buf_size;
/* make sure the size doesn't exceed the maximum supported by the hw */
if (buf_size > sta->sta.max_rx_aggregation_subframes)
.timeout = 0,
};
int ret;
+ u16 buf_size;
tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
sta->ampdu_mlme.addba_req_num[tid]++;
spin_unlock_bh(&sta->lock);
+ if (sta->sta.he_cap.has_he) {
+ buf_size = local->hw.max_tx_aggregation_subframes;
+ } else {
+ /*
+ * We really should use what the driver told us it will
+ * transmit as the maximum, but certain APs (e.g. the
+ * LinkSys WRT120N with FW v1.0.07 build 002 Jun 18 2012)
+ * will crash when we use a lower number.
+ */
+ buf_size = IEEE80211_MAX_AMPDU_BUF_HT;
+ }
+
/* send AddBA request */
ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
tid_tx->dialog_token, params.ssn,
- IEEE80211_MAX_AMPDU_BUF_HT,
- tid_tx->timeout);
+ buf_size, tid_tx->timeout);
}
/*
{
struct tid_ampdu_tx *tid_tx;
struct ieee80211_txq *txq;
- u16 capab, tid;
- u8 buf_size;
+ u16 capab, tid, buf_size;
bool amsdu;
capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
params->vht_capa, sta);
+ if (params->he_capa)
+ ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
+ (void *)params->he_capa,
+ params->he_capa_len, sta);
+
if (params->opmode_notif_used) {
/* returned value is only needed for rc update, but the
* rc isn't initialized here yet, so ignore it
--- /dev/null
+/*
+ * HE handling
+ *
+ * Copyright(c) 2017 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.
+ */
+
+#include "ieee80211_i.h"
+
+void
+ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_supported_band *sband,
+ const u8 *he_cap_ie, u8 he_cap_len,
+ struct sta_info *sta)
+{
+ struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap;
+ struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie;
+ u8 he_ppe_size;
+ u8 mcs_nss_size;
+ u8 he_total_size;
+
+ memset(he_cap, 0, sizeof(*he_cap));
+
+ if (!he_cap_ie || !ieee80211_get_he_sta_cap(sband))
+ return;
+
+ /* Make sure size is OK */
+ mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap_ie_elem);
+ he_ppe_size =
+ ieee80211_he_ppe_size(he_cap_ie[sizeof(he_cap->he_cap_elem) +
+ mcs_nss_size],
+ he_cap_ie_elem->phy_cap_info);
+ he_total_size = sizeof(he_cap->he_cap_elem) + mcs_nss_size +
+ he_ppe_size;
+ if (he_cap_len < he_total_size)
+ return;
+
+ memcpy(&he_cap->he_cap_elem, he_cap_ie, sizeof(he_cap->he_cap_elem));
+
+ /* HE Tx/Rx HE MCS NSS Support Field */
+ memcpy(&he_cap->he_mcs_nss_supp,
+ &he_cap_ie[sizeof(he_cap->he_cap_elem)], mcs_nss_size);
+
+ /* Check if there are (optional) PPE Thresholds */
+ if (he_cap->he_cap_elem.phy_cap_info[6] &
+ IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)
+ memcpy(he_cap->ppe_thres,
+ &he_cap_ie[sizeof(he_cap->he_cap_elem) + mcs_nss_size],
+ he_ppe_size);
+
+ he_cap->has_he = true;
+}
IEEE80211_STA_DISABLE_160MHZ = BIT(13),
IEEE80211_STA_DISABLE_WMM = BIT(14),
IEEE80211_STA_ENABLE_RRM = BIT(15),
+ IEEE80211_STA_DISABLE_HE = BIT(16),
};
struct ieee80211_mgd_auth_data {
const struct ieee80211_vht_cap *vht_cap_elem;
const struct ieee80211_vht_operation *vht_operation;
const struct ieee80211_meshconf_ie *mesh_config;
+ const u8 *he_cap;
+ const struct ieee80211_he_operation *he_operation;
+ const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
+ const u8 *uora_element;
const u8 *mesh_id;
const u8 *peering;
const __le16 *awake_window;
u8 ext_supp_rates_len;
u8 wmm_info_len;
u8 wmm_param_len;
+ u8 he_cap_len;
u8 mesh_id_len;
u8 peering_len;
u8 preq_len;
enum nl80211_chan_width
ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
+/* HE */
+void
+ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_supported_band *sband,
+ const u8 *he_cap_ie, u8 he_cap_len,
+ struct sta_info *sta);
+
/* Spectrum management */
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u32 cap);
u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
const struct cfg80211_chan_def *chandef);
+u8 *ieee80211_ie_build_he_cap(u8 *pos,
+ const struct ieee80211_sta_he_cap *he_cap,
+ u8 *end);
int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
const struct ieee80211_supported_band *sband,
const u8 *srates, int srates_len, u32 *rates);
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright (C) 2017 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
int result, i;
enum nl80211_band band;
int channels, max_bitrates;
- bool supp_ht, supp_vht;
+ bool supp_ht, supp_vht, supp_he;
netdev_features_t feature_whitelist;
struct cfg80211_chan_def dflt_chandef = {};
max_bitrates = 0;
supp_ht = false;
supp_vht = false;
+ supp_he = false;
for (band = 0; band < NUM_NL80211_BANDS; band++) {
struct ieee80211_supported_band *sband;
supp_ht = supp_ht || sband->ht_cap.ht_supported;
supp_vht = supp_vht || sband->vht_cap.vht_supported;
+ if (!supp_he)
+ supp_he = !!ieee80211_get_he_sta_cap(sband);
+
if (!sband->ht_cap.ht_supported)
continue;
local->scan_ies_len +=
2 + sizeof(struct ieee80211_vht_cap);
+ /* HE cap element is variable in size - set len to allow max size */
+ /*
+ * TODO: 1 is added at the end of the calculation to accommodate for
+ * the temporary placing of the HE capabilities IE under EXT.
+ * Remove it once it is placed in the final place.
+ */
+ if (supp_he)
+ local->scan_ies_len +=
+ 2 + sizeof(struct ieee80211_he_cap_elem) +
+ sizeof(struct ieee80211_he_mcs_nss_supp) +
+ IEEE80211_HE_PPE_THRES_MAX_LEN + 1;
+
if (!local->ops->hw_scan) {
/* For hw_scan, driver needs to set these up. */
local->hw.wiphy->max_scan_ssids = 4;
struct ieee80211_channel *channel,
const struct ieee80211_ht_operation *ht_oper,
const struct ieee80211_vht_operation *vht_oper,
+ const struct ieee80211_he_operation *he_oper,
struct cfg80211_chan_def *chandef, bool tracking)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
}
vht_chandef = *chandef;
- if (!ieee80211_chandef_vht_oper(vht_oper, &vht_chandef)) {
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && he_oper &&
+ (le32_to_cpu(he_oper->he_oper_params) &
+ IEEE80211_HE_OPERATION_VHT_OPER_INFO)) {
+ struct ieee80211_vht_operation he_oper_vht_cap;
+
+ /*
+ * Set only first 3 bytes (other 2 aren't used in
+ * ieee80211_chandef_vht_oper() anyway)
+ */
+ memcpy(&he_oper_vht_cap, he_oper->optional, 3);
+ he_oper_vht_cap.basic_mcs_set = cpu_to_le16(0);
+
+ if (!ieee80211_chandef_vht_oper(&he_oper_vht_cap,
+ &vht_chandef)) {
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
+ sdata_info(sdata,
+ "HE AP VHT information is invalid, disable HE\n");
+ ret = IEEE80211_STA_DISABLE_HE;
+ goto out;
+ }
+ } else if (!ieee80211_chandef_vht_oper(vht_oper, &vht_chandef)) {
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT information is invalid, disable VHT\n");
const struct ieee80211_ht_cap *ht_cap,
const struct ieee80211_ht_operation *ht_oper,
const struct ieee80211_vht_operation *vht_oper,
+ const struct ieee80211_he_operation *he_oper,
const u8 *bssid, u32 *changed)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *chan;
+ struct ieee80211_channel *chan = sdata->vif.bss_conf.chandef.chan;
+ struct ieee80211_supported_band *sband =
+ local->hw.wiphy->bands[chan->band];
struct cfg80211_chan_def chandef;
u16 ht_opmode;
u32 flags;
if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
vht_oper = NULL;
+ /* don't check HE if we associated as non-HE station */
+ if (ifmgd->flags & IEEE80211_STA_DISABLE_HE ||
+ !ieee80211_get_he_sta_cap(sband))
+ he_oper = NULL;
+
if (WARN_ON_ONCE(!sta))
return -EINVAL;
sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
}
- chan = sdata->vif.bss_conf.chandef.chan;
- sband = local->hw.wiphy->bands[chan->band];
-
- /* calculate new channel (type) based on HT/VHT operation IEs */
+ /* calculate new channel (type) based on HT/VHT/HE operation IEs */
flags = ieee80211_determine_chantype(sdata, sband, chan,
- ht_oper, vht_oper,
+ ht_oper, vht_oper, he_oper,
&chandef, true);
/*
ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
}
+/* This function determines HE capability flags for the association
+ * and builds the IE.
+ */
+static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb,
+ struct ieee80211_supported_band *sband)
+{
+ u8 *pos;
+ const struct ieee80211_sta_he_cap *he_cap = NULL;
+ u8 he_cap_size;
+
+ he_cap = ieee80211_get_he_sta_cap(sband);
+ if (!he_cap)
+ return;
+
+ /*
+ * TODO: the 1 added is because this temporarily is under the EXTENSION
+ * IE. Get rid of it when it moves.
+ */
+ he_cap_size =
+ 2 + 1 + sizeof(he_cap->he_cap_elem) +
+ ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem) +
+ ieee80211_he_ppe_size(he_cap->ppe_thres[0],
+ he_cap->he_cap_elem.phy_cap_info);
+ pos = skb_put(skb, he_cap_size);
+ ieee80211_ie_build_he_cap(pos, he_cap, pos + he_cap_size);
+}
+
static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
2 + 2 * sband->n_channels + /* supported channels */
2 + sizeof(struct ieee80211_ht_cap) + /* HT */
2 + sizeof(struct ieee80211_vht_cap) + /* VHT */
+ 2 + 1 + sizeof(struct ieee80211_he_cap_elem) + /* HE */
+ sizeof(struct ieee80211_he_mcs_nss_supp) +
+ IEEE80211_HE_PPE_THRES_MAX_LEN +
assoc_data->ie_len + /* extra IEs */
(assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) +
9, /* WMM */
offset = noffset;
}
+ /* if present, add any custom IEs that go before HE */
+ if (assoc_data->ie_len) {
+ static const u8 before_he[] = {
+ /*
+ * no need to list the ones split off before VHT
+ * or generated here
+ */
+ WLAN_EID_OPMODE_NOTIF,
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE,
+ /* 11ai elements */
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_SESSION,
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_PUBLIC_KEY,
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_KEY_CONFIRM,
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_HLP_CONTAINER,
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN,
+ /* TODO: add 11ah/11aj/11ak elements */
+ };
+
+ /* RIC already taken above, so no need to handle here anymore */
+ noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len,
+ before_he, ARRAY_SIZE(before_he),
+ offset);
+ pos = skb_put(skb, noffset - offset);
+ memcpy(pos, assoc_data->ie + offset, noffset - offset);
+ offset = noffset;
+ }
+
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
ieee80211_add_vht_ie(sdata, skb, sband,
&assoc_data->ap_vht_cap);
- /* if present, add any custom non-vendor IEs that go after HT */
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
+ ieee80211_add_he_ie(sdata, skb, sband);
+
+ /* if present, add any custom non-vendor IEs that go after HE */
if (assoc_data->ie_len) {
noffset = ieee80211_ie_split_vendor(assoc_data->ie,
assoc_data->ie_len,
struct ieee80211_hdr_3addr *nullfunc;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ /* Don't send NDPs when STA is connected HE */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
+ return;
+
skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif,
!ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP));
if (!skb)
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
+ /* Don't send NDPs when connected HE */
+ if (!(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE))
+ return;
+
skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
if (!skb)
return;
}
/* MLME */
-static bool ieee80211_sta_wmm_params(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata,
- const u8 *wmm_param, size_t wmm_param_len)
+static bool
+ieee80211_sta_wmm_params(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ const u8 *wmm_param, size_t wmm_param_len,
+ const struct ieee80211_mu_edca_param_set *mu_edca)
{
struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS];
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
uapsd = true;
+ params[ac].mu_edca = !!mu_edca;
+ if (mu_edca)
+ params[ac].mu_edca_param_rec = mu_edca->ac_bk;
break;
case 2: /* AC_VI */
ac = IEEE80211_AC_VI;
sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
uapsd = true;
+ params[ac].mu_edca = !!mu_edca;
+ if (mu_edca)
+ params[ac].mu_edca_param_rec = mu_edca->ac_vi;
break;
case 3: /* AC_VO */
ac = IEEE80211_AC_VO;
sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
uapsd = true;
+ params[ac].mu_edca = !!mu_edca;
+ if (mu_edca)
+ params[ac].mu_edca_param_rec = mu_edca->ac_vo;
break;
case 0: /* AC_BE */
default:
sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
uapsd = true;
+ params[ac].mu_edca = !!mu_edca;
+ if (mu_edca)
+ params[ac].mu_edca_param_rec = mu_edca->ac_be;
break;
}
goto out;
}
+ /*
+ * If AP doesn't support HT, or it doesn't have HE mandatory IEs, mark
+ * HE as disabled. If on the 5GHz band, make sure it supports VHT.
+ */
+ if (ifmgd->flags & IEEE80211_STA_DISABLE_HT ||
+ (sband->band == NL80211_BAND_5GHZ &&
+ ifmgd->flags & IEEE80211_STA_DISABLE_VHT) ||
+ (!elems.he_cap && !elems.he_operation))
+ ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
+
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
+ (!elems.he_cap || !elems.he_operation)) {
+ mutex_unlock(&sdata->local->sta_mtx);
+ sdata_info(sdata,
+ "HE AP is missing HE capability/operation\n");
+ ret = false;
+ goto out;
+ }
+
/* Set up internal HT/VHT capabilities */
if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
elems.vht_cap_elem, sta);
+ if (elems.he_operation && !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
+ elems.he_cap) {
+ ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
+ elems.he_cap,
+ elems.he_cap_len,
+ sta);
+
+ bss_conf->he_support = sta->sta.he_cap.has_he;
+ } else {
+ bss_conf->he_support = false;
+ }
+
+ if (bss_conf->he_support) {
+ u32 he_oper_params =
+ le32_to_cpu(elems.he_operation->he_oper_params);
+
+ bss_conf->bss_color = he_oper_params &
+ IEEE80211_HE_OPERATION_BSS_COLOR_MASK;
+ bss_conf->htc_trig_based_pkt_ext =
+ (he_oper_params &
+ IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK) <<
+ IEEE80211_HE_OPERATION_DFLT_PE_DURATION_OFFSET;
+ bss_conf->frame_time_rts_th =
+ (he_oper_params &
+ IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK) <<
+ IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET;
+
+ bss_conf->multi_sta_back_32bit =
+ sta->sta.he_cap.he_cap_elem.mac_cap_info[2] &
+ IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP;
+
+ bss_conf->ack_enabled =
+ sta->sta.he_cap.he_cap_elem.mac_cap_info[2] &
+ IEEE80211_HE_MAC_CAP2_ACK_EN;
+
+ bss_conf->uora_exists = !!elems.uora_element;
+ if (elems.uora_element)
+ bss_conf->uora_ocw_range = elems.uora_element[0];
+
+ /* TODO: OPEN: what happens if BSS color disable is set? */
+ }
+
/*
* Some APs, e.g. Netgear WNDR3700, report invalid HT operation data
* in their association response, so ignore that data for our own
if (ifmgd->flags & IEEE80211_STA_DISABLE_WMM) {
ieee80211_set_wmm_default(sdata, false, false);
} else if (!ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
- elems.wmm_param_len)) {
+ elems.wmm_param_len,
+ elems.mu_edca_param_set)) {
/* still enable QoS since we might have HT/VHT */
ieee80211_set_wmm_default(sdata, false, true);
/* set the disable-WMM flag in this case to disable
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_WMM) &&
ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
- elems.wmm_param_len))
+ elems.wmm_param_len,
+ elems.mu_edca_param_set))
changed |= BSS_CHANGED_QOS;
/*
if (ieee80211_config_bw(sdata, sta,
elems.ht_cap_elem, elems.ht_operation,
- elems.vht_operation, bssid, &changed)) {
+ elems.vht_operation, elems.he_operation,
+ bssid, &changed)) {
mutex_unlock(&local->sta_mtx);
sdata_info(sdata,
"failed to follow AP %pM bandwidth change, disconnect\n",
return chains;
}
+static bool
+ieee80211_verify_sta_he_mcs_support(struct ieee80211_supported_band *sband,
+ const struct ieee80211_he_operation *he_op)
+{
+ const struct ieee80211_sta_he_cap *sta_he_cap =
+ ieee80211_get_he_sta_cap(sband);
+ u16 ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set);
+ int i;
+
+ if (!sta_he_cap || !he_op)
+ return false;
+
+ /* Need to go over for 80MHz, 160MHz and for 80+80 */
+ for (i = 0; i < 3; i++) {
+ const struct ieee80211_he_mcs_nss_supp *sta_mcs_nss_supp =
+ &sta_he_cap->he_mcs_nss_supp;
+ u16 sta_mcs_map_rx =
+ le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i]);
+ u16 sta_mcs_map_tx =
+ le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i + 1]);
+ u8 nss;
+ bool verified = true;
+
+ /*
+ * For each band there is a maximum of 8 spatial streams
+ * possible. Each of the sta_mcs_map_* is a 16-bit struct built
+ * of 2 bits per NSS (1-8), with the values defined in enum
+ * ieee80211_he_mcs_support. Need to make sure STA TX and RX
+ * capabilities aren't less than the AP's minimum requirements
+ * for this HE BSS per SS.
+ * It is enough to find one such band that meets the reqs.
+ */
+ for (nss = 8; nss > 0; nss--) {
+ u8 sta_rx_val = (sta_mcs_map_rx >> (2 * (nss - 1))) & 3;
+ u8 sta_tx_val = (sta_mcs_map_tx >> (2 * (nss - 1))) & 3;
+ u8 ap_val = (ap_min_req_set >> (2 * (nss - 1))) & 3;
+
+ if (ap_val == IEEE80211_HE_MCS_NOT_SUPPORTED)
+ continue;
+
+ /*
+ * Make sure the HE AP doesn't require MCSs that aren't
+ * supported by the client
+ */
+ if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED ||
+ sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED ||
+ (ap_val > sta_rx_val) || (ap_val > sta_tx_val)) {
+ verified = false;
+ break;
+ }
+ }
+
+ if (verified)
+ return true;
+ }
+
+ /* If here, STA doesn't meet AP's HE min requirements */
+ return false;
+}
+
static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss)
{
const struct ieee80211_ht_cap *ht_cap = NULL;
const struct ieee80211_ht_operation *ht_oper = NULL;
const struct ieee80211_vht_operation *vht_oper = NULL;
+ const struct ieee80211_he_operation *he_oper = NULL;
struct ieee80211_supported_band *sband;
struct cfg80211_chan_def chandef;
int ret;
}
}
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
+ ieee80211_get_he_sta_cap(sband)) {
+ const struct cfg80211_bss_ies *ies;
+ const u8 *he_oper_ie;
+
+ ies = rcu_dereference(cbss->ies);
+ he_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_OPERATION,
+ ies->data, ies->len);
+ if (he_oper_ie &&
+ he_oper_ie[1] == ieee80211_he_oper_size(&he_oper_ie[3]))
+ he_oper = (void *)(he_oper_ie + 3);
+ else
+ he_oper = NULL;
+
+ if (!he_oper ||
+ !ieee80211_verify_sta_he_mcs_support(sband, he_oper))
+ ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
+ }
+
/* Allow VHT if at least one channel on the sband supports 80 MHz */
have_80mhz = false;
for (i = 0; i < sband->n_channels; i++) {
ifmgd->flags |= ieee80211_determine_chantype(sdata, sband,
cbss->channel,
- ht_oper, vht_oper,
+ ht_oper, vht_oper, he_oper,
&chandef, false);
sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss),
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) {
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
+ ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
netdev_info(sdata->dev,
- "disabling HT/VHT due to WEP/TKIP use\n");
+ "disabling HE/HT/VHT due to WEP/TKIP use\n");
}
}
len += 12;
}
+ if (status->encoding == RX_ENC_HE &&
+ status->flag & RX_FLAG_RADIOTAP_HE) {
+ len = ALIGN(len, 2);
+ len += 12;
+ BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he) != 12);
+ }
+
+ if (status->encoding == RX_ENC_HE &&
+ status->flag & RX_FLAG_RADIOTAP_HE_MU) {
+ len = ALIGN(len, 2);
+ len += 12;
+ BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he_mu) != 12);
+ }
+
if (status->chains) {
/* antenna and antenna signal fields */
len += 2 * hweight8(status->chains);
int mpdulen, chain;
unsigned long chains = status->chains;
struct ieee80211_vendor_radiotap rtap = {};
+ struct ieee80211_radiotap_he he = {};
+ struct ieee80211_radiotap_he_mu he_mu = {};
+
+ if (status->flag & RX_FLAG_RADIOTAP_HE) {
+ he = *(struct ieee80211_radiotap_he *)skb->data;
+ skb_pull(skb, sizeof(he));
+ WARN_ON_ONCE(status->encoding != RX_ENC_HE);
+ }
+
+ if (status->flag & RX_FLAG_RADIOTAP_HE_MU) {
+ he_mu = *(struct ieee80211_radiotap_he_mu *)skb->data;
+ skb_pull(skb, sizeof(he_mu));
+ }
if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
rtap = *(struct ieee80211_vendor_radiotap *)skb->data;
*pos++ = flags;
}
+ if (status->encoding == RX_ENC_HE &&
+ status->flag & RX_FLAG_RADIOTAP_HE) {
+#define HE_PREP(f, val) cpu_to_le16(FIELD_PREP(IEEE80211_RADIOTAP_HE_##f, val))
+
+ if (status->enc_flags & RX_ENC_FLAG_STBC_MASK) {
+ he.data6 |= HE_PREP(DATA6_NSTS,
+ FIELD_GET(RX_ENC_FLAG_STBC_MASK,
+ status->enc_flags));
+ he.data3 |= HE_PREP(DATA3_STBC, 1);
+ } else {
+ he.data6 |= HE_PREP(DATA6_NSTS, status->nss);
+ }
+
+#define CHECK_GI(s) \
+ BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_GI_##s != \
+ (int)NL80211_RATE_INFO_HE_GI_##s)
+
+ CHECK_GI(0_8);
+ CHECK_GI(1_6);
+ CHECK_GI(3_2);
+
+ he.data3 |= HE_PREP(DATA3_DATA_MCS, status->rate_idx);
+ he.data3 |= HE_PREP(DATA3_DATA_DCM, status->he_dcm);
+ he.data3 |= HE_PREP(DATA3_CODING,
+ !!(status->enc_flags & RX_ENC_FLAG_LDPC));
+
+ he.data5 |= HE_PREP(DATA5_GI, status->he_gi);
+
+ switch (status->bw) {
+ case RATE_INFO_BW_20:
+ he.data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_20MHZ);
+ break;
+ case RATE_INFO_BW_40:
+ he.data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_40MHZ);
+ break;
+ case RATE_INFO_BW_80:
+ he.data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_80MHZ);
+ break;
+ case RATE_INFO_BW_160:
+ he.data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_160MHZ);
+ break;
+ case RATE_INFO_BW_HE_RU:
+#define CHECK_RU_ALLOC(s) \
+ BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_##s##T != \
+ NL80211_RATE_INFO_HE_RU_ALLOC_##s + 4)
+
+ CHECK_RU_ALLOC(26);
+ CHECK_RU_ALLOC(52);
+ CHECK_RU_ALLOC(106);
+ CHECK_RU_ALLOC(242);
+ CHECK_RU_ALLOC(484);
+ CHECK_RU_ALLOC(996);
+ CHECK_RU_ALLOC(2x996);
+
+ he.data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ status->he_ru + 4);
+ break;
+ default:
+ WARN_ONCE(1, "Invalid SU BW %d\n", status->bw);
+ }
+
+ /* ensure 2 byte alignment */
+ while ((pos - (u8 *)rthdr) & 1)
+ pos++;
+ rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE);
+ memcpy(pos, &he, sizeof(he));
+ pos += sizeof(he);
+ }
+
+ if (status->encoding == RX_ENC_HE &&
+ status->flag & RX_FLAG_RADIOTAP_HE_MU) {
+ /* ensure 2 byte alignment */
+ while ((pos - (u8 *)rthdr) & 1)
+ pos++;
+ rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE_MU);
+ memcpy(pos, &he_mu, sizeof(he_mu));
+ pos += sizeof(he_mu);
+ }
+
for_each_set_bit(chain, &chains, IEEE80211_MAX_CHAINS) {
*pos++ = status->chain_signal[chain];
*pos++ = chain;
rcu_dereference(local->monitor_sdata);
bool only_monitor = false;
+ if (status->flag & RX_FLAG_RADIOTAP_HE)
+ rtap_space += sizeof(struct ieee80211_radiotap_he);
+
+ if (status->flag & RX_FLAG_RADIOTAP_HE_MU)
+ rtap_space += sizeof(struct ieee80211_radiotap_he_mu);
+
if (unlikely(status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)) {
struct ieee80211_vendor_radiotap *rtap = (void *)origskb->data;
status = IEEE80211_SKB_RXCB((rx->skb));
sband = rx->local->hw.wiphy->bands[status->band];
- if (!(status->encoding == RX_ENC_HT) &&
- !(status->encoding == RX_ENC_VHT))
+ if (status->encoding == RX_ENC_LEGACY)
rate = &sband->bitrates[status->rate_idx];
ieee80211_rx_cooked_monitor(rx, rate);
status->rate_idx, status->nss))
goto drop;
break;
+ case RX_ENC_HE:
+ if (WARN_ONCE(status->rate_idx > 11 ||
+ !status->nss ||
+ status->nss > 8,
+ "Rate marked as an HE rate but data is invalid: MCS: %d, NSS: %d\n",
+ status->rate_idx, status->nss))
+ goto drop;
+ break;
default:
WARN_ON_ONCE(1);
/* fall through */
struct ieee80211_tx_info *info;
struct ieee80211_chanctx_conf *chanctx_conf;
+ /* Don't send NDPs when STA is connected HE */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE))
+ return;
+
if (qos) {
fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_NULLFUNC |
return stats;
}
-static void sta_stats_decode_rate(struct ieee80211_local *local, u16 rate,
+static void sta_stats_decode_rate(struct ieee80211_local *local, u32 rate,
struct rate_info *rinfo)
{
rinfo->bw = STA_STATS_GET(BW, rate);
rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
break;
}
+ case STA_STATS_RATE_TYPE_HE:
+ rinfo->flags = RATE_INFO_FLAGS_HE_MCS;
+ rinfo->mcs = STA_STATS_GET(HE_MCS, rate);
+ rinfo->nss = STA_STATS_GET(HE_NSS, rate);
+ rinfo->he_gi = STA_STATS_GET(HE_GI, rate);
+ rinfo->he_ru_alloc = STA_STATS_GET(HE_RU, rate);
+ rinfo->he_dcm = STA_STATS_GET(HE_DCM, rate);
+ break;
}
}
u8 dialog_token;
u8 stop_initiator;
bool tx_stop;
- u8 buf_size;
+ u16 buf_size;
u16 failed_bar_ssn;
bool bar_pending;
int last_signal;
u8 chains;
s8 chain_signal_last[IEEE80211_MAX_CHAINS];
- u16 last_rate;
+ u32 last_rate;
struct u64_stats_sync syncp;
u64 bytes;
u64 msdu[IEEE80211_NUM_TIDS + 1];
STA_STATS_RATE_TYPE_LEGACY,
STA_STATS_RATE_TYPE_HT,
STA_STATS_RATE_TYPE_VHT,
+ STA_STATS_RATE_TYPE_HE,
};
#define STA_STATS_FIELD_HT_MCS GENMASK( 7, 0)
#define STA_STATS_FIELD_LEGACY_BAND GENMASK( 7, 4)
#define STA_STATS_FIELD_VHT_MCS GENMASK( 3, 0)
#define STA_STATS_FIELD_VHT_NSS GENMASK( 7, 4)
+#define STA_STATS_FIELD_HE_MCS GENMASK( 3, 0)
+#define STA_STATS_FIELD_HE_NSS GENMASK( 7, 4)
#define STA_STATS_FIELD_BW GENMASK(11, 8)
#define STA_STATS_FIELD_SGI GENMASK(12, 12)
#define STA_STATS_FIELD_TYPE GENMASK(15, 13)
+#define STA_STATS_FIELD_HE_RU GENMASK(18, 16)
+#define STA_STATS_FIELD_HE_GI GENMASK(20, 19)
+#define STA_STATS_FIELD_HE_DCM GENMASK(21, 21)
#define STA_STATS_FIELD(_n, _v) FIELD_PREP(STA_STATS_FIELD_ ## _n, _v)
#define STA_STATS_GET(_n, _v) FIELD_GET(STA_STATS_FIELD_ ## _n, _v)
static inline u32 sta_stats_encode_rate(struct ieee80211_rx_status *s)
{
- u16 r;
+ u32 r;
r = STA_STATS_FIELD(BW, s->bw);
r |= STA_STATS_FIELD(LEGACY_BAND, s->band);
r |= STA_STATS_FIELD(LEGACY_IDX, s->rate_idx);
break;
+ case RX_ENC_HE:
+ r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HE);
+ r |= STA_STATS_FIELD(HE_NSS, s->nss);
+ r |= STA_STATS_FIELD(HE_MCS, s->rate_idx);
+ r |= STA_STATS_FIELD(HE_GI, s->he_gi);
+ r |= STA_STATS_FIELD(HE_RU, s->he_ru);
+ r |= STA_STATS_FIELD(HE_DCM, s->he_dcm);
+ break;
default:
WARN_ON(1);
return STA_STATS_RATE_INVALID;
STA_ENTRY \
__field(u16, tid) \
__field(u16, ssn) \
- __field(u8, buf_size) \
+ __field(u16, buf_size) \
__field(bool, amsdu) \
__field(u16, timeout) \
__field(u16, action)
if (elen >= sizeof(*elems->max_idle_period_ie))
elems->max_idle_period_ie = (void *)pos;
break;
+ case WLAN_EID_EXTENSION:
+ if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA &&
+ elen >= (sizeof(*elems->mu_edca_param_set) + 1)) {
+ elems->mu_edca_param_set = (void *)&pos[1];
+ } else if (pos[0] == WLAN_EID_EXT_HE_CAPABILITY) {
+ elems->he_cap = (void *)&pos[1];
+ elems->he_cap_len = elen - 1;
+ } else if (pos[0] == WLAN_EID_EXT_HE_OPERATION &&
+ elen >= sizeof(*elems->he_operation) &&
+ elen >= ieee80211_he_oper_size(&pos[1])) {
+ elems->he_operation = (void *)&pos[1];
+ } else if (pos[0] == WLAN_EID_EXT_UORA && elen >= 1) {
+ elems->uora_element = (void *)&pos[1];
+ }
+ break;
default:
break;
}
size_t *offset, u32 flags)
{
struct ieee80211_supported_band *sband;
+ const struct ieee80211_sta_he_cap *he_cap;
u8 *pos = buffer, *end = buffer + buffer_len;
size_t noffset;
int supp_rates_len, i;
sband->ht_cap.cap);
}
- /*
- * If adding more here, adjust code in main.c
- * that calculates local->scan_ies_len.
- */
-
/* insert custom IEs that go before VHT */
if (ie && ie_len) {
static const u8 before_vht[] = {
sband->vht_cap.cap);
}
+ /* insert custom IEs that go before HE */
+ if (ie && ie_len) {
+ static const u8 before_he[] = {
+ /*
+ * no need to list the ones split off before VHT
+ * or generated here
+ */
+ WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS,
+ WLAN_EID_AP_CSN,
+ /* TODO: add 11ah/11aj/11ak elements */
+ };
+ noffset = ieee80211_ie_split(ie, ie_len,
+ before_he, ARRAY_SIZE(before_he),
+ *offset);
+ if (end - pos < noffset - *offset)
+ goto out_err;
+ memcpy(pos, ie + *offset, noffset - *offset);
+ pos += noffset - *offset;
+ *offset = noffset;
+ }
+
+ he_cap = ieee80211_get_he_sta_cap(sband);
+ if (he_cap) {
+ pos = ieee80211_ie_build_he_cap(pos, he_cap, end);
+ if (!pos)
+ goto out_err;
+ }
+
+ /*
+ * If adding more here, adjust code in main.c
+ * that calculates local->scan_ies_len.
+ */
+
return pos - buffer;
out_err:
WARN_ONCE(1, "not enough space for preq IEs\n");
return pos;
}
+u8 *ieee80211_ie_build_he_cap(u8 *pos,
+ const struct ieee80211_sta_he_cap *he_cap,
+ u8 *end)
+{
+ u8 n;
+ u8 ie_len;
+ u8 *orig_pos = pos;
+
+ /* Make sure we have place for the IE */
+ /*
+ * TODO: the 1 added is because this temporarily is under the EXTENSION
+ * IE. Get rid of it when it moves.
+ */
+ if (!he_cap)
+ return orig_pos;
+
+ n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem);
+ ie_len = 2 + 1 +
+ sizeof(he_cap->he_cap_elem) + n +
+ ieee80211_he_ppe_size(he_cap->ppe_thres[0],
+ he_cap->he_cap_elem.phy_cap_info);
+
+ if ((end - pos) < ie_len)
+ return orig_pos;
+
+ *pos++ = WLAN_EID_EXTENSION;
+ pos++; /* We'll set the size later below */
+ *pos++ = WLAN_EID_EXT_HE_CAPABILITY;
+
+ /* Fixed data */
+ memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem));
+ pos += sizeof(he_cap->he_cap_elem);
+
+ memcpy(pos, &he_cap->he_mcs_nss_supp, n);
+ pos += n;
+
+ /* Check if PPE Threshold should be present */
+ if ((he_cap->he_cap_elem.phy_cap_info[6] &
+ IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
+ goto end;
+
+ /*
+ * Calculate how many PPET16/PPET8 pairs are to come. Algorithm:
+ * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK)
+ */
+ n = hweight8(he_cap->ppe_thres[0] &
+ IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
+ n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >>
+ IEEE80211_PPE_THRES_NSS_POS));
+
+ /*
+ * Each pair is 6 bits, and we need to add the 7 "header" bits to the
+ * total size.
+ */
+ n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
+ n = DIV_ROUND_UP(n, 8);
+
+ /* Copy PPE Thresholds */
+ memcpy(pos, &he_cap->ppe_thres, n);
+ pos += n;
+
+end:
+ orig_pos[1] = (pos - orig_pos) - 2;
+ return pos;
+}
+
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
const struct cfg80211_chan_def *chandef,
u16 prot_mode, bool rifs_mode)
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