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Commit | Line | Data |
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818255ea MP |
1 | /* |
2 | * VHT handling | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #include <linux/ieee80211.h> | |
10 | #include <linux/export.h> | |
11 | #include <net/mac80211.h> | |
12 | #include "ieee80211_i.h" | |
0af83d3d | 13 | #include "rate.h" |
818255ea MP |
14 | |
15 | ||
dd5ecfea JB |
16 | static void __check_vhtcap_disable(struct ieee80211_sub_if_data *sdata, |
17 | struct ieee80211_sta_vht_cap *vht_cap, | |
18 | u32 flag) | |
19 | { | |
20 | __le32 le_flag = cpu_to_le32(flag); | |
21 | ||
22 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & le_flag && | |
23 | !(sdata->u.mgd.vht_capa.vht_cap_info & le_flag)) | |
24 | vht_cap->cap &= ~flag; | |
25 | } | |
26 | ||
27 | void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, | |
28 | struct ieee80211_sta_vht_cap *vht_cap) | |
29 | { | |
30 | int i; | |
31 | u16 rxmcs_mask, rxmcs_cap, rxmcs_n, txmcs_mask, txmcs_cap, txmcs_n; | |
32 | ||
33 | if (!vht_cap->vht_supported) | |
34 | return; | |
35 | ||
36 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
37 | return; | |
38 | ||
39 | __check_vhtcap_disable(sdata, vht_cap, | |
40 | IEEE80211_VHT_CAP_RXLDPC); | |
41 | __check_vhtcap_disable(sdata, vht_cap, | |
42 | IEEE80211_VHT_CAP_SHORT_GI_80); | |
43 | __check_vhtcap_disable(sdata, vht_cap, | |
44 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
45 | __check_vhtcap_disable(sdata, vht_cap, | |
46 | IEEE80211_VHT_CAP_TXSTBC); | |
47 | __check_vhtcap_disable(sdata, vht_cap, | |
48 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); | |
49 | __check_vhtcap_disable(sdata, vht_cap, | |
50 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); | |
51 | __check_vhtcap_disable(sdata, vht_cap, | |
52 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN); | |
53 | __check_vhtcap_disable(sdata, vht_cap, | |
54 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN); | |
55 | ||
56 | /* Allow user to decrease AMPDU length exponent */ | |
57 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & | |
58 | cpu_to_le32(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK)) { | |
59 | u32 cap, n; | |
60 | ||
61 | n = le32_to_cpu(sdata->u.mgd.vht_capa.vht_cap_info) & | |
62 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
63 | n >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
64 | cap = vht_cap->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
65 | cap >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
66 | ||
67 | if (n < cap) { | |
68 | vht_cap->cap &= | |
69 | ~IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
70 | vht_cap->cap |= | |
71 | n << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
72 | } | |
73 | } | |
74 | ||
75 | /* Allow the user to decrease MCSes */ | |
76 | rxmcs_mask = | |
77 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.rx_mcs_map); | |
78 | rxmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.rx_mcs_map); | |
79 | rxmcs_n &= rxmcs_mask; | |
80 | rxmcs_cap = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
81 | ||
82 | txmcs_mask = | |
83 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.tx_mcs_map); | |
84 | txmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.tx_mcs_map); | |
85 | txmcs_n &= txmcs_mask; | |
86 | txmcs_cap = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
87 | for (i = 0; i < 8; i++) { | |
88 | u8 m, n, c; | |
89 | ||
90 | m = (rxmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
91 | n = (rxmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
92 | c = (rxmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
93 | ||
94 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
95 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
96 | rxmcs_cap &= ~(3 << 2*i); | |
97 | rxmcs_cap |= (rxmcs_n & (3 << 2*i)); | |
98 | } | |
99 | ||
100 | m = (txmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
101 | n = (txmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
102 | c = (txmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
103 | ||
104 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
105 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
106 | txmcs_cap &= ~(3 << 2*i); | |
107 | txmcs_cap |= (txmcs_n & (3 << 2*i)); | |
108 | } | |
109 | } | |
110 | vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(rxmcs_cap); | |
111 | vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(txmcs_cap); | |
112 | } | |
113 | ||
4a3cb702 JB |
114 | void |
115 | ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, | |
116 | struct ieee80211_supported_band *sband, | |
117 | const struct ieee80211_vht_cap *vht_cap_ie, | |
118 | struct sta_info *sta) | |
818255ea | 119 | { |
4a34215e | 120 | struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap; |
55d942f4 JB |
121 | struct ieee80211_sta_vht_cap own_cap; |
122 | u32 cap_info, i; | |
818255ea MP |
123 | |
124 | memset(vht_cap, 0, sizeof(*vht_cap)); | |
125 | ||
4a34215e JB |
126 | if (!sta->sta.ht_cap.ht_supported) |
127 | return; | |
128 | ||
818255ea MP |
129 | if (!vht_cap_ie || !sband->vht_cap.vht_supported) |
130 | return; | |
131 | ||
bed766bd AN |
132 | /* don't support VHT for TDLS peers for now */ |
133 | if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) | |
134 | return; | |
135 | ||
4a817aa7 JB |
136 | /* |
137 | * A VHT STA must support 40 MHz, but if we verify that here | |
138 | * then we break a few things - some APs (e.g. Netgear R6300v2 | |
139 | * and others based on the BCM4360 chipset) will unset this | |
140 | * capability bit when operating in 20 MHz. | |
141 | */ | |
e1a0c6b3 | 142 | |
818255ea MP |
143 | vht_cap->vht_supported = true; |
144 | ||
55d942f4 JB |
145 | own_cap = sband->vht_cap; |
146 | /* | |
147 | * If user has specified capability overrides, take care | |
148 | * of that if the station we're setting up is the AP that | |
149 | * we advertised a restricted capability set to. Override | |
150 | * our own capabilities and then use those below. | |
151 | */ | |
152 | if (sdata->vif.type == NL80211_IFTYPE_STATION && | |
153 | !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) | |
154 | ieee80211_apply_vhtcap_overrides(sdata, &own_cap); | |
155 | ||
156 | /* take some capabilities as-is */ | |
157 | cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info); | |
158 | vht_cap->cap = cap_info; | |
159 | vht_cap->cap &= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | | |
160 | IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | | |
161 | IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | | |
162 | IEEE80211_VHT_CAP_RXLDPC | | |
163 | IEEE80211_VHT_CAP_VHT_TXOP_PS | | |
164 | IEEE80211_VHT_CAP_HTC_VHT | | |
165 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | | |
166 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB | | |
167 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB | | |
168 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
169 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; | |
170 | ||
171 | /* and some based on our own capabilities */ | |
172 | switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { | |
173 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
174 | vht_cap->cap |= cap_info & | |
175 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
176 | break; | |
177 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
178 | vht_cap->cap |= cap_info & | |
179 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
180 | break; | |
181 | default: | |
182 | /* nothing */ | |
183 | break; | |
184 | } | |
185 | ||
186 | /* symmetric capabilities */ | |
187 | vht_cap->cap |= cap_info & own_cap.cap & | |
188 | (IEEE80211_VHT_CAP_SHORT_GI_80 | | |
189 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
190 | ||
191 | /* remaining ones */ | |
fbdd90ea | 192 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) |
55d942f4 JB |
193 | vht_cap->cap |= cap_info & |
194 | (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
fbdd90ea | 195 | IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK); |
55d942f4 JB |
196 | |
197 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) | |
198 | vht_cap->cap |= cap_info & | |
5eb7906b | 199 | (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
fbdd90ea | 200 | IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK); |
55d942f4 JB |
201 | |
202 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE) | |
203 | vht_cap->cap |= cap_info & | |
204 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
205 | ||
206 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) | |
207 | vht_cap->cap |= cap_info & | |
208 | IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; | |
209 | ||
210 | if (own_cap.cap & IEEE80211_VHT_CAP_TXSTBC) | |
211 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_RXSTBC_MASK; | |
212 | ||
213 | if (own_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK) | |
214 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_TXSTBC; | |
818255ea MP |
215 | |
216 | /* Copy peer MCS info, the driver might need them. */ | |
217 | memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs, | |
218 | sizeof(struct ieee80211_vht_mcs_info)); | |
e1a0c6b3 | 219 | |
55d942f4 JB |
220 | /* but also restrict MCSes */ |
221 | for (i = 0; i < 8; i++) { | |
222 | u16 own_rx, own_tx, peer_rx, peer_tx; | |
223 | ||
224 | own_rx = le16_to_cpu(own_cap.vht_mcs.rx_mcs_map); | |
225 | own_rx = (own_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
226 | ||
227 | own_tx = le16_to_cpu(own_cap.vht_mcs.tx_mcs_map); | |
228 | own_tx = (own_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
229 | ||
230 | peer_rx = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
231 | peer_rx = (peer_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
232 | ||
233 | peer_tx = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
234 | peer_tx = (peer_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
235 | ||
236 | if (peer_tx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
237 | if (own_rx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
238 | peer_tx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
239 | else if (own_rx < peer_tx) | |
240 | peer_tx = own_rx; | |
241 | } | |
242 | ||
243 | if (peer_rx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
244 | if (own_tx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
245 | peer_rx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
246 | else if (own_tx < peer_rx) | |
247 | peer_rx = own_tx; | |
248 | } | |
249 | ||
250 | vht_cap->vht_mcs.rx_mcs_map &= | |
251 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
252 | vht_cap->vht_mcs.rx_mcs_map |= cpu_to_le16(peer_rx << i * 2); | |
253 | ||
254 | vht_cap->vht_mcs.tx_mcs_map &= | |
255 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
256 | vht_cap->vht_mcs.tx_mcs_map |= cpu_to_le16(peer_tx << i * 2); | |
257 | } | |
258 | ||
259 | /* finally set up the bandwidth */ | |
0af83d3d JB |
260 | switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { |
261 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
262 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
263 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; | |
264 | break; | |
265 | default: | |
266 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; | |
267 | } | |
268 | ||
e1a0c6b3 JB |
269 | sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta); |
270 | } | |
271 | ||
272 | enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta) | |
273 | { | |
274 | struct ieee80211_sub_if_data *sdata = sta->sdata; | |
275 | u32 cap = sta->sta.vht_cap.cap; | |
0af83d3d | 276 | enum ieee80211_sta_rx_bandwidth bw; |
e1a0c6b3 | 277 | |
0af83d3d JB |
278 | if (!sta->sta.vht_cap.vht_supported) { |
279 | bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? | |
e1a0c6b3 | 280 | IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; |
0af83d3d JB |
281 | goto check_max; |
282 | } | |
e1a0c6b3 JB |
283 | |
284 | switch (sdata->vif.bss_conf.chandef.width) { | |
285 | default: | |
286 | WARN_ON_ONCE(1); | |
287 | /* fall through */ | |
288 | case NL80211_CHAN_WIDTH_20_NOHT: | |
289 | case NL80211_CHAN_WIDTH_20: | |
290 | case NL80211_CHAN_WIDTH_40: | |
0af83d3d | 291 | bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? |
e1a0c6b3 | 292 | IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; |
0af83d3d | 293 | break; |
e1a0c6b3 | 294 | case NL80211_CHAN_WIDTH_160: |
0af83d3d JB |
295 | if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == |
296 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) { | |
297 | bw = IEEE80211_STA_RX_BW_160; | |
298 | break; | |
299 | } | |
e1a0c6b3 JB |
300 | /* fall through */ |
301 | case NL80211_CHAN_WIDTH_80P80: | |
0af83d3d JB |
302 | if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == |
303 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) { | |
304 | bw = IEEE80211_STA_RX_BW_160; | |
305 | break; | |
306 | } | |
e1a0c6b3 JB |
307 | /* fall through */ |
308 | case NL80211_CHAN_WIDTH_80: | |
0af83d3d | 309 | bw = IEEE80211_STA_RX_BW_80; |
e1a0c6b3 | 310 | } |
0af83d3d JB |
311 | |
312 | check_max: | |
313 | if (bw > sta->cur_max_bandwidth) | |
314 | bw = sta->cur_max_bandwidth; | |
315 | return bw; | |
818255ea | 316 | } |
8921d04e JB |
317 | |
318 | void ieee80211_sta_set_rx_nss(struct sta_info *sta) | |
319 | { | |
320 | u8 ht_rx_nss = 0, vht_rx_nss = 0; | |
321 | ||
322 | /* if we received a notification already don't overwrite it */ | |
323 | if (sta->sta.rx_nss) | |
324 | return; | |
325 | ||
326 | if (sta->sta.ht_cap.ht_supported) { | |
327 | if (sta->sta.ht_cap.mcs.rx_mask[0]) | |
328 | ht_rx_nss++; | |
329 | if (sta->sta.ht_cap.mcs.rx_mask[1]) | |
330 | ht_rx_nss++; | |
331 | if (sta->sta.ht_cap.mcs.rx_mask[2]) | |
332 | ht_rx_nss++; | |
333 | if (sta->sta.ht_cap.mcs.rx_mask[3]) | |
334 | ht_rx_nss++; | |
335 | /* FIXME: consider rx_highest? */ | |
336 | } | |
337 | ||
338 | if (sta->sta.vht_cap.vht_supported) { | |
339 | int i; | |
340 | u16 rx_mcs_map; | |
341 | ||
342 | rx_mcs_map = le16_to_cpu(sta->sta.vht_cap.vht_mcs.rx_mcs_map); | |
343 | ||
344 | for (i = 7; i >= 0; i--) { | |
345 | u8 mcs = (rx_mcs_map >> (2 * i)) & 3; | |
346 | ||
347 | if (mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
348 | vht_rx_nss = i + 1; | |
349 | break; | |
350 | } | |
351 | } | |
352 | /* FIXME: consider rx_highest? */ | |
353 | } | |
354 | ||
355 | ht_rx_nss = max(ht_rx_nss, vht_rx_nss); | |
356 | sta->sta.rx_nss = max_t(u8, 1, ht_rx_nss); | |
357 | } | |
0af83d3d | 358 | |
b1bce14a MK |
359 | u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, |
360 | struct sta_info *sta, u8 opmode, | |
361 | enum ieee80211_band band, bool nss_only) | |
0af83d3d JB |
362 | { |
363 | struct ieee80211_local *local = sdata->local; | |
364 | struct ieee80211_supported_band *sband; | |
365 | enum ieee80211_sta_rx_bandwidth new_bw; | |
366 | u32 changed = 0; | |
367 | u8 nss; | |
368 | ||
369 | sband = local->hw.wiphy->bands[band]; | |
370 | ||
371 | /* ignore - no support for BF yet */ | |
372 | if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF) | |
b1bce14a | 373 | return 0; |
0af83d3d JB |
374 | |
375 | nss = opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; | |
376 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; | |
377 | nss += 1; | |
378 | ||
379 | if (sta->sta.rx_nss != nss) { | |
380 | sta->sta.rx_nss = nss; | |
381 | changed |= IEEE80211_RC_NSS_CHANGED; | |
382 | } | |
383 | ||
bee7f586 | 384 | if (nss_only) |
b1bce14a | 385 | return changed; |
bee7f586 | 386 | |
0af83d3d JB |
387 | switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) { |
388 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: | |
389 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_20; | |
390 | break; | |
391 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: | |
392 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_40; | |
393 | break; | |
394 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: | |
395 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; | |
396 | break; | |
397 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: | |
398 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; | |
399 | break; | |
400 | } | |
401 | ||
402 | new_bw = ieee80211_sta_cur_vht_bw(sta); | |
403 | if (new_bw != sta->sta.bandwidth) { | |
404 | sta->sta.bandwidth = new_bw; | |
38745c74 | 405 | changed |= IEEE80211_RC_BW_CHANGED; |
0af83d3d JB |
406 | } |
407 | ||
b1bce14a MK |
408 | return changed; |
409 | } | |
410 | ||
411 | void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, | |
412 | struct sta_info *sta, u8 opmode, | |
413 | enum ieee80211_band band, bool nss_only) | |
414 | { | |
415 | struct ieee80211_local *local = sdata->local; | |
416 | struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band]; | |
417 | ||
418 | u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, opmode, | |
419 | band, nss_only); | |
420 | ||
421 | if (changed > 0) | |
0af83d3d JB |
422 | rate_control_rate_update(local, sband, sta, changed); |
423 | } |