Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
818255ea MP |
2 | /* |
3 | * VHT handling | |
4 | * | |
23a1f8d4 | 5 | * Portions of this file |
65554d07 | 6 | * Copyright(c) 2015 - 2016 Intel Deutschland GmbH |
a8bca3e9 | 7 | * Copyright (C) 2018 - 2024 Intel Corporation |
818255ea MP |
8 | */ |
9 | ||
10 | #include <linux/ieee80211.h> | |
11 | #include <linux/export.h> | |
12 | #include <net/mac80211.h> | |
13 | #include "ieee80211_i.h" | |
0af83d3d | 14 | #include "rate.h" |
818255ea MP |
15 | |
16 | ||
dd5ecfea JB |
17 | static void __check_vhtcap_disable(struct ieee80211_sub_if_data *sdata, |
18 | struct ieee80211_sta_vht_cap *vht_cap, | |
19 | u32 flag) | |
20 | { | |
21 | __le32 le_flag = cpu_to_le32(flag); | |
22 | ||
23 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & le_flag && | |
24 | !(sdata->u.mgd.vht_capa.vht_cap_info & le_flag)) | |
25 | vht_cap->cap &= ~flag; | |
26 | } | |
27 | ||
28 | void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, | |
29 | struct ieee80211_sta_vht_cap *vht_cap) | |
30 | { | |
31 | int i; | |
32 | u16 rxmcs_mask, rxmcs_cap, rxmcs_n, txmcs_mask, txmcs_cap, txmcs_n; | |
33 | ||
34 | if (!vht_cap->vht_supported) | |
35 | return; | |
36 | ||
37 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
38 | return; | |
39 | ||
40 | __check_vhtcap_disable(sdata, vht_cap, | |
41 | IEEE80211_VHT_CAP_RXLDPC); | |
42 | __check_vhtcap_disable(sdata, vht_cap, | |
43 | IEEE80211_VHT_CAP_SHORT_GI_80); | |
44 | __check_vhtcap_disable(sdata, vht_cap, | |
45 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
46 | __check_vhtcap_disable(sdata, vht_cap, | |
47 | IEEE80211_VHT_CAP_TXSTBC); | |
48 | __check_vhtcap_disable(sdata, vht_cap, | |
49 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); | |
50 | __check_vhtcap_disable(sdata, vht_cap, | |
51 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); | |
52 | __check_vhtcap_disable(sdata, vht_cap, | |
53 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN); | |
54 | __check_vhtcap_disable(sdata, vht_cap, | |
55 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN); | |
56 | ||
57 | /* Allow user to decrease AMPDU length exponent */ | |
58 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & | |
59 | cpu_to_le32(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK)) { | |
60 | u32 cap, n; | |
61 | ||
62 | n = le32_to_cpu(sdata->u.mgd.vht_capa.vht_cap_info) & | |
63 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
64 | n >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
65 | cap = vht_cap->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
66 | cap >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
67 | ||
68 | if (n < cap) { | |
69 | vht_cap->cap &= | |
70 | ~IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
71 | vht_cap->cap |= | |
72 | n << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
73 | } | |
74 | } | |
75 | ||
76 | /* Allow the user to decrease MCSes */ | |
77 | rxmcs_mask = | |
78 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.rx_mcs_map); | |
79 | rxmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.rx_mcs_map); | |
80 | rxmcs_n &= rxmcs_mask; | |
81 | rxmcs_cap = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
82 | ||
83 | txmcs_mask = | |
84 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.tx_mcs_map); | |
85 | txmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.tx_mcs_map); | |
86 | txmcs_n &= txmcs_mask; | |
87 | txmcs_cap = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
88 | for (i = 0; i < 8; i++) { | |
89 | u8 m, n, c; | |
90 | ||
91 | m = (rxmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
92 | n = (rxmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
93 | c = (rxmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
94 | ||
95 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
96 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
97 | rxmcs_cap &= ~(3 << 2*i); | |
98 | rxmcs_cap |= (rxmcs_n & (3 << 2*i)); | |
99 | } | |
100 | ||
101 | m = (txmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
102 | n = (txmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
103 | c = (txmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
104 | ||
105 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
106 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
107 | txmcs_cap &= ~(3 << 2*i); | |
108 | txmcs_cap |= (txmcs_n & (3 << 2*i)); | |
109 | } | |
110 | } | |
111 | vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(rxmcs_cap); | |
112 | vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(txmcs_cap); | |
113 | } | |
114 | ||
4a3cb702 JB |
115 | void |
116 | ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, | |
117 | struct ieee80211_supported_band *sband, | |
118 | const struct ieee80211_vht_cap *vht_cap_ie, | |
084cf2ae | 119 | const struct ieee80211_vht_cap *vht_cap_ie2, |
c71420db | 120 | struct link_sta_info *link_sta) |
818255ea | 121 | { |
c71420db | 122 | struct ieee80211_sta_vht_cap *vht_cap = &link_sta->pub->vht_cap; |
55d942f4 JB |
123 | struct ieee80211_sta_vht_cap own_cap; |
124 | u32 cap_info, i; | |
52a45f38 | 125 | bool have_80mhz; |
084cf2ae | 126 | u32 mpdu_len; |
818255ea MP |
127 | |
128 | memset(vht_cap, 0, sizeof(*vht_cap)); | |
129 | ||
c71420db | 130 | if (!link_sta->pub->ht_cap.ht_supported) |
4a34215e JB |
131 | return; |
132 | ||
818255ea MP |
133 | if (!vht_cap_ie || !sband->vht_cap.vht_supported) |
134 | return; | |
135 | ||
52a45f38 AN |
136 | /* Allow VHT if at least one channel on the sband supports 80 MHz */ |
137 | have_80mhz = false; | |
138 | for (i = 0; i < sband->n_channels; i++) { | |
139 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | | |
140 | IEEE80211_CHAN_NO_80MHZ)) | |
141 | continue; | |
142 | ||
143 | have_80mhz = true; | |
144 | break; | |
145 | } | |
146 | ||
147 | if (!have_80mhz) | |
148 | return; | |
149 | ||
4a817aa7 JB |
150 | /* |
151 | * A VHT STA must support 40 MHz, but if we verify that here | |
152 | * then we break a few things - some APs (e.g. Netgear R6300v2 | |
153 | * and others based on the BCM4360 chipset) will unset this | |
154 | * capability bit when operating in 20 MHz. | |
155 | */ | |
e1a0c6b3 | 156 | |
818255ea MP |
157 | vht_cap->vht_supported = true; |
158 | ||
55d942f4 JB |
159 | own_cap = sband->vht_cap; |
160 | /* | |
161 | * If user has specified capability overrides, take care | |
162 | * of that if the station we're setting up is the AP that | |
163 | * we advertised a restricted capability set to. Override | |
164 | * our own capabilities and then use those below. | |
165 | */ | |
166 | if (sdata->vif.type == NL80211_IFTYPE_STATION && | |
c71420db | 167 | !test_sta_flag(link_sta->sta, WLAN_STA_TDLS_PEER)) |
55d942f4 JB |
168 | ieee80211_apply_vhtcap_overrides(sdata, &own_cap); |
169 | ||
170 | /* take some capabilities as-is */ | |
171 | cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info); | |
172 | vht_cap->cap = cap_info; | |
3bd5c7a2 | 173 | vht_cap->cap &= IEEE80211_VHT_CAP_RXLDPC | |
55d942f4 JB |
174 | IEEE80211_VHT_CAP_VHT_TXOP_PS | |
175 | IEEE80211_VHT_CAP_HTC_VHT | | |
176 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | | |
177 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB | | |
178 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB | | |
179 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
180 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; | |
181 | ||
3bd5c7a2 FF |
182 | vht_cap->cap |= min_t(u32, cap_info & IEEE80211_VHT_CAP_MAX_MPDU_MASK, |
183 | own_cap.cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK); | |
184 | ||
55d942f4 JB |
185 | /* and some based on our own capabilities */ |
186 | switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { | |
187 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
188 | vht_cap->cap |= cap_info & | |
189 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
190 | break; | |
191 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
192 | vht_cap->cap |= cap_info & | |
193 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
194 | break; | |
195 | default: | |
196 | /* nothing */ | |
197 | break; | |
198 | } | |
199 | ||
200 | /* symmetric capabilities */ | |
201 | vht_cap->cap |= cap_info & own_cap.cap & | |
202 | (IEEE80211_VHT_CAP_SHORT_GI_80 | | |
203 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
204 | ||
205 | /* remaining ones */ | |
fbdd90ea | 206 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) |
55d942f4 JB |
207 | vht_cap->cap |= cap_info & |
208 | (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
fbdd90ea | 209 | IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK); |
55d942f4 JB |
210 | |
211 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) | |
212 | vht_cap->cap |= cap_info & | |
5eb7906b | 213 | (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
fbdd90ea | 214 | IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK); |
55d942f4 JB |
215 | |
216 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE) | |
217 | vht_cap->cap |= cap_info & | |
218 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
219 | ||
220 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) | |
221 | vht_cap->cap |= cap_info & | |
222 | IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; | |
223 | ||
224 | if (own_cap.cap & IEEE80211_VHT_CAP_TXSTBC) | |
225 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_RXSTBC_MASK; | |
226 | ||
227 | if (own_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK) | |
228 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_TXSTBC; | |
818255ea MP |
229 | |
230 | /* Copy peer MCS info, the driver might need them. */ | |
231 | memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs, | |
232 | sizeof(struct ieee80211_vht_mcs_info)); | |
e1a0c6b3 | 233 | |
e80d6425 JB |
234 | /* copy EXT_NSS_BW Support value or remove the capability */ |
235 | if (ieee80211_hw_check(&sdata->local->hw, SUPPORTS_VHT_EXT_NSS_BW)) | |
236 | vht_cap->cap |= (cap_info & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); | |
237 | else | |
238 | vht_cap->vht_mcs.tx_highest &= | |
239 | ~cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
240 | ||
55d942f4 JB |
241 | /* but also restrict MCSes */ |
242 | for (i = 0; i < 8; i++) { | |
243 | u16 own_rx, own_tx, peer_rx, peer_tx; | |
244 | ||
245 | own_rx = le16_to_cpu(own_cap.vht_mcs.rx_mcs_map); | |
246 | own_rx = (own_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
247 | ||
248 | own_tx = le16_to_cpu(own_cap.vht_mcs.tx_mcs_map); | |
249 | own_tx = (own_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
250 | ||
251 | peer_rx = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
252 | peer_rx = (peer_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
253 | ||
254 | peer_tx = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
255 | peer_tx = (peer_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
256 | ||
257 | if (peer_tx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
258 | if (own_rx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
259 | peer_tx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
260 | else if (own_rx < peer_tx) | |
261 | peer_tx = own_rx; | |
262 | } | |
263 | ||
264 | if (peer_rx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
265 | if (own_tx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
266 | peer_rx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
267 | else if (own_tx < peer_rx) | |
268 | peer_rx = own_tx; | |
269 | } | |
270 | ||
271 | vht_cap->vht_mcs.rx_mcs_map &= | |
272 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
273 | vht_cap->vht_mcs.rx_mcs_map |= cpu_to_le16(peer_rx << i * 2); | |
274 | ||
275 | vht_cap->vht_mcs.tx_mcs_map &= | |
276 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
277 | vht_cap->vht_mcs.tx_mcs_map |= cpu_to_le16(peer_tx << i * 2); | |
278 | } | |
279 | ||
c8eaf347 FM |
280 | /* |
281 | * This is a workaround for VHT-enabled STAs which break the spec | |
282 | * and have the VHT-MCS Rx map filled in with value 3 for all eight | |
283 | * spacial streams, an example is AR9462. | |
284 | * | |
285 | * As per spec, in section 22.1.1 Introduction to the VHT PHY | |
286 | * A VHT STA shall support at least single spactial stream VHT-MCSs | |
287 | * 0 to 7 (transmit and receive) in all supported channel widths. | |
288 | */ | |
289 | if (vht_cap->vht_mcs.rx_mcs_map == cpu_to_le16(0xFFFF)) { | |
290 | vht_cap->vht_supported = false; | |
c71420db JB |
291 | sdata_info(sdata, |
292 | "Ignoring VHT IE from %pM (link:%pM) due to invalid rx_mcs_map\n", | |
293 | link_sta->sta->addr, link_sta->addr); | |
c8eaf347 FM |
294 | return; |
295 | } | |
296 | ||
55d942f4 | 297 | /* finally set up the bandwidth */ |
0af83d3d JB |
298 | switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { |
299 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
300 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
c71420db | 301 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; |
0af83d3d JB |
302 | break; |
303 | default: | |
c71420db | 304 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; |
e80d6425 JB |
305 | |
306 | if (!(vht_cap->vht_mcs.tx_highest & | |
307 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE))) | |
308 | break; | |
309 | ||
310 | /* | |
311 | * If this is non-zero, then it does support 160 MHz after all, | |
312 | * in one form or the other. We don't distinguish here (or even | |
313 | * above) between 160 and 80+80 yet. | |
314 | */ | |
315 | if (cap_info & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) | |
c71420db | 316 | link_sta->cur_max_bandwidth = |
afe0d181 | 317 | IEEE80211_STA_RX_BW_160; |
0af83d3d JB |
318 | } |
319 | ||
c71420db | 320 | link_sta->pub->bandwidth = ieee80211_sta_cur_vht_bw(link_sta); |
506bcfa8 | 321 | |
084cf2ae JB |
322 | /* |
323 | * Work around the Cisco 9115 FW 17.3 bug by taking the min of | |
324 | * both reported MPDU lengths. | |
325 | */ | |
326 | mpdu_len = vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK; | |
327 | if (vht_cap_ie2) | |
328 | mpdu_len = min_t(u32, mpdu_len, | |
329 | le32_get_bits(vht_cap_ie2->vht_cap_info, | |
330 | IEEE80211_VHT_CAP_MAX_MPDU_MASK)); | |
331 | ||
c71420db JB |
332 | /* |
333 | * FIXME - should the amsdu len be per link? store per link | |
334 | * and maintain a minimum? | |
335 | */ | |
084cf2ae | 336 | switch (mpdu_len) { |
506bcfa8 | 337 | case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: |
4c51541d | 338 | link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; |
506bcfa8 EG |
339 | break; |
340 | case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: | |
4c51541d | 341 | link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; |
506bcfa8 EG |
342 | break; |
343 | case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: | |
344 | default: | |
4c51541d | 345 | link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; |
506bcfa8 EG |
346 | break; |
347 | } | |
4c51541d BB |
348 | |
349 | ieee80211_sta_recalc_aggregates(&link_sta->sta->sta); | |
e1a0c6b3 JB |
350 | } |
351 | ||
a1de6407 | 352 | /* FIXME: move this to some better location - parses HE/EHT now */ |
c71420db | 353 | enum ieee80211_sta_rx_bandwidth |
25af8ff5 JB |
354 | _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, |
355 | struct cfg80211_chan_def *chandef) | |
e1a0c6b3 | 356 | { |
c71420db JB |
357 | unsigned int link_id = link_sta->link_id; |
358 | struct ieee80211_sub_if_data *sdata = link_sta->sta->sdata; | |
c71420db JB |
359 | struct ieee80211_sta_vht_cap *vht_cap = &link_sta->pub->vht_cap; |
360 | struct ieee80211_sta_he_cap *he_cap = &link_sta->pub->he_cap; | |
361 | struct ieee80211_sta_eht_cap *eht_cap = &link_sta->pub->eht_cap; | |
1c45c5ce | 362 | u32 cap_width; |
e1a0c6b3 | 363 | |
cf2c9cc3 | 364 | if (he_cap->has_he) { |
25af8ff5 | 365 | enum nl80211_band band; |
a1de6407 IP |
366 | u8 info; |
367 | ||
25af8ff5 JB |
368 | if (chandef) { |
369 | band = chandef->chan->band; | |
370 | } else { | |
371 | struct ieee80211_bss_conf *link_conf; | |
d8675a63 | 372 | |
25af8ff5 JB |
373 | rcu_read_lock(); |
374 | link_conf = rcu_dereference(sdata->vif.link_conf[link_id]); | |
375 | band = link_conf->chanreq.oper.chan->band; | |
376 | rcu_read_unlock(); | |
377 | } | |
378 | ||
379 | if (eht_cap->has_eht && band == NL80211_BAND_6GHZ) { | |
a1de6407 IP |
380 | info = eht_cap->eht_cap_elem.phy_cap_info[0]; |
381 | ||
25af8ff5 JB |
382 | if (info & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ) |
383 | return IEEE80211_STA_RX_BW_320; | |
a1de6407 IP |
384 | } |
385 | ||
386 | info = he_cap->he_cap_elem.phy_cap_info[0]; | |
cf2c9cc3 | 387 | |
25af8ff5 | 388 | if (band == NL80211_BAND_2GHZ) { |
cf2c9cc3 | 389 | if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G) |
25af8ff5 JB |
390 | return IEEE80211_STA_RX_BW_40; |
391 | return IEEE80211_STA_RX_BW_20; | |
cf2c9cc3 JB |
392 | } |
393 | ||
394 | if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G || | |
395 | info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) | |
25af8ff5 JB |
396 | return IEEE80211_STA_RX_BW_160; |
397 | ||
398 | if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G) | |
399 | return IEEE80211_STA_RX_BW_80; | |
400 | ||
401 | return IEEE80211_STA_RX_BW_20; | |
cf2c9cc3 JB |
402 | } |
403 | ||
1c45c5ce | 404 | if (!vht_cap->vht_supported) |
c71420db | 405 | return link_sta->pub->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? |
1c45c5ce EP |
406 | IEEE80211_STA_RX_BW_40 : |
407 | IEEE80211_STA_RX_BW_20; | |
e1a0c6b3 | 408 | |
1c45c5ce EP |
409 | cap_width = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
410 | ||
411 | if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ || | |
412 | cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) | |
413 | return IEEE80211_STA_RX_BW_160; | |
414 | ||
e5c0b0ff MG |
415 | /* |
416 | * If this is non-zero, then it does support 160 MHz after all, | |
417 | * in one form or the other. We don't distinguish here (or even | |
418 | * above) between 160 and 80+80 yet. | |
419 | */ | |
420 | if (vht_cap->cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) | |
421 | return IEEE80211_STA_RX_BW_160; | |
422 | ||
1c45c5ce EP |
423 | return IEEE80211_STA_RX_BW_80; |
424 | } | |
425 | ||
c71420db JB |
426 | enum nl80211_chan_width |
427 | ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta) | |
59021c67 | 428 | { |
c71420db | 429 | struct ieee80211_sta_vht_cap *vht_cap = &link_sta->pub->vht_cap; |
59021c67 AN |
430 | u32 cap_width; |
431 | ||
432 | if (!vht_cap->vht_supported) { | |
c71420db | 433 | if (!link_sta->pub->ht_cap.ht_supported) |
59021c67 AN |
434 | return NL80211_CHAN_WIDTH_20_NOHT; |
435 | ||
c71420db | 436 | return link_sta->pub->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? |
59021c67 AN |
437 | NL80211_CHAN_WIDTH_40 : NL80211_CHAN_WIDTH_20; |
438 | } | |
439 | ||
440 | cap_width = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
441 | ||
442 | if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) | |
443 | return NL80211_CHAN_WIDTH_160; | |
444 | else if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) | |
445 | return NL80211_CHAN_WIDTH_80P80; | |
446 | ||
447 | return NL80211_CHAN_WIDTH_80; | |
448 | } | |
449 | ||
97f5f425 | 450 | enum nl80211_chan_width |
c71420db | 451 | ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *link_sta) |
97f5f425 | 452 | { |
afe0d181 | 453 | enum ieee80211_sta_rx_bandwidth cur_bw = |
c71420db | 454 | link_sta->pub->bandwidth; |
afe0d181 | 455 | struct ieee80211_sta_vht_cap *vht_cap = |
c71420db | 456 | &link_sta->pub->vht_cap; |
97f5f425 | 457 | u32 cap_width; |
458 | ||
459 | switch (cur_bw) { | |
460 | case IEEE80211_STA_RX_BW_20: | |
c71420db | 461 | if (!link_sta->pub->ht_cap.ht_supported) |
97f5f425 | 462 | return NL80211_CHAN_WIDTH_20_NOHT; |
463 | else | |
464 | return NL80211_CHAN_WIDTH_20; | |
465 | case IEEE80211_STA_RX_BW_40: | |
466 | return NL80211_CHAN_WIDTH_40; | |
467 | case IEEE80211_STA_RX_BW_80: | |
468 | return NL80211_CHAN_WIDTH_80; | |
469 | case IEEE80211_STA_RX_BW_160: | |
470 | cap_width = | |
471 | vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
472 | ||
473 | if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) | |
474 | return NL80211_CHAN_WIDTH_160; | |
475 | ||
476 | return NL80211_CHAN_WIDTH_80P80; | |
477 | default: | |
478 | return NL80211_CHAN_WIDTH_20; | |
479 | } | |
480 | } | |
481 | ||
59021c67 | 482 | enum ieee80211_sta_rx_bandwidth |
1c45c5ce EP |
483 | ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width) |
484 | { | |
485 | switch (width) { | |
e1a0c6b3 JB |
486 | case NL80211_CHAN_WIDTH_20_NOHT: |
487 | case NL80211_CHAN_WIDTH_20: | |
1c45c5ce | 488 | return IEEE80211_STA_RX_BW_20; |
e1a0c6b3 | 489 | case NL80211_CHAN_WIDTH_40: |
1c45c5ce EP |
490 | return IEEE80211_STA_RX_BW_40; |
491 | case NL80211_CHAN_WIDTH_80: | |
492 | return IEEE80211_STA_RX_BW_80; | |
e1a0c6b3 | 493 | case NL80211_CHAN_WIDTH_160: |
e1a0c6b3 | 494 | case NL80211_CHAN_WIDTH_80P80: |
1c45c5ce | 495 | return IEEE80211_STA_RX_BW_160; |
5dca295d IP |
496 | case NL80211_CHAN_WIDTH_320: |
497 | return IEEE80211_STA_RX_BW_320; | |
1c45c5ce EP |
498 | default: |
499 | WARN_ON_ONCE(1); | |
500 | return IEEE80211_STA_RX_BW_20; | |
e1a0c6b3 | 501 | } |
1c45c5ce EP |
502 | } |
503 | ||
cf2c9cc3 | 504 | /* FIXME: rename/move - this deals with everything not just VHT */ |
c71420db | 505 | enum ieee80211_sta_rx_bandwidth |
7d2bad82 JB |
506 | _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, |
507 | struct cfg80211_chan_def *chandef) | |
1c45c5ce | 508 | { |
c71420db | 509 | struct sta_info *sta = link_sta->sta; |
d8675a63 | 510 | enum nl80211_chan_width bss_width; |
1c45c5ce EP |
511 | enum ieee80211_sta_rx_bandwidth bw; |
512 | ||
7d2bad82 JB |
513 | if (chandef) { |
514 | bss_width = chandef->width; | |
515 | } else { | |
516 | struct ieee80211_bss_conf *link_conf; | |
517 | ||
518 | rcu_read_lock(); | |
519 | link_conf = rcu_dereference(sta->sdata->vif.link_conf[link_sta->link_id]); | |
520 | if (WARN_ON_ONCE(!link_conf)) { | |
521 | rcu_read_unlock(); | |
522 | return IEEE80211_STA_RX_BW_20; | |
523 | } | |
6092077a | 524 | bss_width = link_conf->chanreq.oper.width; |
7d2bad82 JB |
525 | rcu_read_unlock(); |
526 | } | |
d8675a63 | 527 | |
7d2bad82 | 528 | bw = _ieee80211_sta_cap_rx_bw(link_sta, chandef); |
c71420db | 529 | bw = min(bw, link_sta->cur_max_bandwidth); |
504871e6 MP |
530 | |
531 | /* Don't consider AP's bandwidth for TDLS peers, section 11.23.1 of | |
532 | * IEEE80211-2016 specification makes higher bandwidth operation | |
533 | * possible on the TDLS link if the peers have wider bandwidth | |
534 | * capability. | |
f65607cd JB |
535 | * |
536 | * However, in this case, and only if the TDLS peer is authorized, | |
537 | * limit to the tdls_chandef so that the configuration here isn't | |
538 | * wider than what's actually requested on the channel context. | |
504871e6 MP |
539 | */ |
540 | if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && | |
f65607cd JB |
541 | test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW) && |
542 | test_sta_flag(sta, WLAN_STA_AUTHORIZED) && | |
543 | sta->tdls_chandef.chan) | |
544 | bw = min(bw, ieee80211_chan_width_to_rx_bw(sta->tdls_chandef.width)); | |
545 | else | |
546 | bw = min(bw, ieee80211_chan_width_to_rx_bw(bss_width)); | |
b98fb44f | 547 | |
0af83d3d | 548 | return bw; |
818255ea | 549 | } |
8921d04e | 550 | |
a8bca3e9 | 551 | void ieee80211_sta_init_nss(struct link_sta_info *link_sta) |
8921d04e | 552 | { |
443df9a7 | 553 | u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, eht_rx_nss = 0, rx_nss; |
2d5e09d0 | 554 | bool support_160; |
8921d04e | 555 | |
c71420db | 556 | if (link_sta->pub->eht_cap.has_eht) { |
443df9a7 | 557 | int i; |
c71420db | 558 | const u8 *rx_nss_mcs = (void *)&link_sta->pub->eht_cap.eht_mcs_nss_supp; |
443df9a7 MG |
559 | |
560 | /* get the max nss for EHT over all possible bandwidths and mcs */ | |
561 | for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++) | |
562 | eht_rx_nss = max_t(u8, eht_rx_nss, | |
563 | u8_get_bits(rx_nss_mcs[i], | |
564 | IEEE80211_EHT_MCS_NSS_RX)); | |
565 | } | |
566 | ||
c71420db | 567 | if (link_sta->pub->he_cap.has_he) { |
f46209b9 TM |
568 | int i; |
569 | u8 rx_mcs_80 = 0, rx_mcs_160 = 0; | |
c71420db | 570 | const struct ieee80211_sta_he_cap *he_cap = &link_sta->pub->he_cap; |
f46209b9 TM |
571 | u16 mcs_160_map = |
572 | le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160); | |
573 | u16 mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80); | |
574 | ||
575 | for (i = 7; i >= 0; i--) { | |
576 | u8 mcs_160 = (mcs_160_map >> (2 * i)) & 3; | |
577 | ||
abd5a8e5 | 578 | if (mcs_160 != IEEE80211_HE_MCS_NOT_SUPPORTED) { |
f46209b9 TM |
579 | rx_mcs_160 = i + 1; |
580 | break; | |
581 | } | |
582 | } | |
583 | for (i = 7; i >= 0; i--) { | |
584 | u8 mcs_80 = (mcs_80_map >> (2 * i)) & 3; | |
585 | ||
abd5a8e5 | 586 | if (mcs_80 != IEEE80211_HE_MCS_NOT_SUPPORTED) { |
f46209b9 TM |
587 | rx_mcs_80 = i + 1; |
588 | break; | |
589 | } | |
590 | } | |
591 | ||
2d5e09d0 WG |
592 | support_160 = he_cap->he_cap_elem.phy_cap_info[0] & |
593 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
594 | ||
595 | if (support_160) | |
596 | he_rx_nss = min(rx_mcs_80, rx_mcs_160); | |
597 | else | |
598 | he_rx_nss = rx_mcs_80; | |
f46209b9 TM |
599 | } |
600 | ||
c71420db JB |
601 | if (link_sta->pub->ht_cap.ht_supported) { |
602 | if (link_sta->pub->ht_cap.mcs.rx_mask[0]) | |
8921d04e | 603 | ht_rx_nss++; |
c71420db | 604 | if (link_sta->pub->ht_cap.mcs.rx_mask[1]) |
8921d04e | 605 | ht_rx_nss++; |
c71420db | 606 | if (link_sta->pub->ht_cap.mcs.rx_mask[2]) |
8921d04e | 607 | ht_rx_nss++; |
c71420db | 608 | if (link_sta->pub->ht_cap.mcs.rx_mask[3]) |
8921d04e JB |
609 | ht_rx_nss++; |
610 | /* FIXME: consider rx_highest? */ | |
611 | } | |
612 | ||
c71420db | 613 | if (link_sta->pub->vht_cap.vht_supported) { |
8921d04e JB |
614 | int i; |
615 | u16 rx_mcs_map; | |
616 | ||
c71420db | 617 | rx_mcs_map = le16_to_cpu(link_sta->pub->vht_cap.vht_mcs.rx_mcs_map); |
8921d04e JB |
618 | |
619 | for (i = 7; i >= 0; i--) { | |
620 | u8 mcs = (rx_mcs_map >> (2 * i)) & 3; | |
621 | ||
622 | if (mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
623 | vht_rx_nss = i + 1; | |
624 | break; | |
625 | } | |
626 | } | |
627 | /* FIXME: consider rx_highest? */ | |
628 | } | |
629 | ||
f46209b9 TM |
630 | rx_nss = max(vht_rx_nss, ht_rx_nss); |
631 | rx_nss = max(he_rx_nss, rx_nss); | |
443df9a7 | 632 | rx_nss = max(eht_rx_nss, rx_nss); |
a8bca3e9 JB |
633 | rx_nss = max_t(u8, 1, rx_nss); |
634 | link_sta->capa_nss = rx_nss; | |
635 | ||
636 | /* that shouldn't be set yet, but we can handle it anyway */ | |
637 | if (link_sta->op_mode_nss) | |
638 | link_sta->pub->rx_nss = | |
639 | min_t(u8, rx_nss, link_sta->op_mode_nss); | |
640 | else | |
641 | link_sta->pub->rx_nss = rx_nss; | |
8921d04e | 642 | } |
0af83d3d | 643 | |
b1bce14a | 644 | u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, |
c71420db | 645 | struct link_sta_info *link_sta, |
afe0d181 | 646 | u8 opmode, enum nl80211_band band) |
0af83d3d | 647 | { |
0af83d3d | 648 | enum ieee80211_sta_rx_bandwidth new_bw; |
ff84e7bf | 649 | struct sta_opmode_info sta_opmode = {}; |
0af83d3d | 650 | u32 changed = 0; |
a8bca3e9 | 651 | u8 nss; |
0af83d3d | 652 | |
0af83d3d JB |
653 | /* ignore - no support for BF yet */ |
654 | if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF) | |
b1bce14a | 655 | return 0; |
0af83d3d JB |
656 | |
657 | nss = opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; | |
658 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; | |
659 | nss += 1; | |
660 | ||
a8bca3e9 JB |
661 | if (link_sta->op_mode_nss != nss) { |
662 | if (nss <= link_sta->capa_nss) { | |
663 | link_sta->op_mode_nss = nss; | |
664 | ||
665 | if (nss != link_sta->pub->rx_nss) { | |
666 | link_sta->pub->rx_nss = nss; | |
667 | changed |= IEEE80211_RC_NSS_CHANGED; | |
668 | sta_opmode.rx_nss = link_sta->pub->rx_nss; | |
669 | sta_opmode.changed |= STA_OPMODE_N_SS_CHANGED; | |
670 | } | |
57b341e9 | 671 | } else { |
57b341e9 RS |
672 | pr_warn_ratelimited("Ignoring NSS change in VHT Operating Mode Notification from %pM with invalid nss %d", |
673 | link_sta->pub->addr, nss); | |
674 | } | |
0af83d3d JB |
675 | } |
676 | ||
677 | switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) { | |
678 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: | |
9166cc49 | 679 | /* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */ |
c71420db | 680 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_20; |
0af83d3d JB |
681 | break; |
682 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: | |
9166cc49 | 683 | /* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */ |
c71420db | 684 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_40; |
0af83d3d JB |
685 | break; |
686 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: | |
9166cc49 | 687 | if (opmode & IEEE80211_OPMODE_NOTIF_BW_160_80P80) |
c71420db | 688 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; |
9166cc49 | 689 | else |
c71420db | 690 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; |
0af83d3d JB |
691 | break; |
692 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: | |
9166cc49 | 693 | /* legacy only, no longer used by newer spec */ |
c71420db | 694 | link_sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; |
0af83d3d JB |
695 | break; |
696 | } | |
697 | ||
c71420db JB |
698 | new_bw = ieee80211_sta_cur_vht_bw(link_sta); |
699 | if (new_bw != link_sta->pub->bandwidth) { | |
700 | link_sta->pub->bandwidth = new_bw; | |
701 | sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(link_sta); | |
38745c74 | 702 | changed |= IEEE80211_RC_BW_CHANGED; |
ff84e7bf | 703 | sta_opmode.changed |= STA_OPMODE_MAX_BW_CHANGED; |
0af83d3d JB |
704 | } |
705 | ||
ff84e7bf | 706 | if (sta_opmode.changed) |
c71420db | 707 | cfg80211_sta_opmode_change_notify(sdata->dev, link_sta->addr, |
ff84e7bf | 708 | &sta_opmode, GFP_KERNEL); |
709 | ||
b1bce14a MK |
710 | return changed; |
711 | } | |
712 | ||
23a1f8d4 | 713 | void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, |
d8675a63 | 714 | struct ieee80211_link_data *link, |
23a1f8d4 SS |
715 | struct ieee80211_mgmt *mgmt) |
716 | { | |
d8675a63 | 717 | struct ieee80211_bss_conf *link_conf = link->conf; |
23a1f8d4 | 718 | |
afe0d181 | 719 | if (!link_conf->mu_mimo_owner) |
23a1f8d4 SS |
720 | return; |
721 | ||
722 | if (!memcmp(mgmt->u.action.u.vht_group_notif.position, | |
afe0d181 | 723 | link_conf->mu_group.position, WLAN_USER_POSITION_LEN) && |
23a1f8d4 | 724 | !memcmp(mgmt->u.action.u.vht_group_notif.membership, |
afe0d181 | 725 | link_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN)) |
23a1f8d4 SS |
726 | return; |
727 | ||
afe0d181 | 728 | memcpy(link_conf->mu_group.membership, |
0241fa19 SS |
729 | mgmt->u.action.u.vht_group_notif.membership, |
730 | WLAN_MEMBERSHIP_LEN); | |
afe0d181 | 731 | memcpy(link_conf->mu_group.position, |
0241fa19 SS |
732 | mgmt->u.action.u.vht_group_notif.position, |
733 | WLAN_USER_POSITION_LEN); | |
23a1f8d4 | 734 | |
d8675a63 JB |
735 | ieee80211_link_info_change_notify(sdata, link, |
736 | BSS_CHANGED_MU_GROUPS); | |
23a1f8d4 SS |
737 | } |
738 | ||
afe0d181 | 739 | void ieee80211_update_mu_groups(struct ieee80211_vif *vif, unsigned int link_id, |
65554d07 SS |
740 | const u8 *membership, const u8 *position) |
741 | { | |
d8675a63 | 742 | struct ieee80211_bss_conf *link_conf; |
65554d07 | 743 | |
d8675a63 JB |
744 | rcu_read_lock(); |
745 | link_conf = rcu_dereference(vif->link_conf[link_id]); | |
65554d07 | 746 | |
d8675a63 JB |
747 | if (!WARN_ON_ONCE(!link_conf || !link_conf->mu_mimo_owner)) { |
748 | memcpy(link_conf->mu_group.membership, membership, | |
749 | WLAN_MEMBERSHIP_LEN); | |
750 | memcpy(link_conf->mu_group.position, position, | |
751 | WLAN_USER_POSITION_LEN); | |
752 | } | |
753 | rcu_read_unlock(); | |
65554d07 SS |
754 | } |
755 | EXPORT_SYMBOL_GPL(ieee80211_update_mu_groups); | |
756 | ||
b1bce14a | 757 | void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, |
c71420db | 758 | struct link_sta_info *link_sta, |
afe0d181 | 759 | u8 opmode, enum nl80211_band band) |
b1bce14a MK |
760 | { |
761 | struct ieee80211_local *local = sdata->local; | |
762 | struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band]; | |
763 | ||
c71420db | 764 | u32 changed = __ieee80211_vht_handle_opmode(sdata, link_sta, |
afe0d181 | 765 | opmode, band); |
b1bce14a | 766 | |
d2941df8 | 767 | if (changed > 0) { |
0cbf348a | 768 | ieee80211_recalc_min_chandef(sdata, link_sta->link_id); |
c71420db JB |
769 | rate_control_rate_update(local, sband, link_sta->sta, |
770 | link_sta->link_id, changed); | |
d2941df8 | 771 | } |
0af83d3d | 772 | } |
b119ad6e LB |
773 | |
774 | void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, | |
775 | u16 vht_mask[NL80211_VHT_NSS_MAX]) | |
776 | { | |
777 | int i; | |
778 | u16 mask, cap = le16_to_cpu(vht_cap); | |
779 | ||
780 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { | |
781 | mask = (cap >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
782 | switch (mask) { | |
783 | case IEEE80211_VHT_MCS_SUPPORT_0_7: | |
784 | vht_mask[i] = 0x00FF; | |
785 | break; | |
786 | case IEEE80211_VHT_MCS_SUPPORT_0_8: | |
787 | vht_mask[i] = 0x01FF; | |
788 | break; | |
789 | case IEEE80211_VHT_MCS_SUPPORT_0_9: | |
790 | vht_mask[i] = 0x03FF; | |
791 | break; | |
792 | case IEEE80211_VHT_MCS_NOT_SUPPORTED: | |
793 | default: | |
794 | vht_mask[i] = 0; | |
795 | break; | |
796 | } | |
797 | } | |
798 | } |