1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2023 MediaTek Inc. */
3
4 #include <linux/etherdevice.h>
5 #include <linux/platform_device.h>
6 #include <linux/pci.h>
7 #include <linux/module.h>
8 #include <linux/ctype.h>
9 #include <net/ipv6.h>
10 #include "mt7925.h"
11 #include "mcu.h"
12 #include "mac.h"
13
14 static void
mt7925_init_he_caps(struct mt792x_phy * phy,enum nl80211_band band,struct ieee80211_sband_iftype_data * data,enum nl80211_iftype iftype)15 mt7925_init_he_caps(struct mt792x_phy *phy, enum nl80211_band band,
16 struct ieee80211_sband_iftype_data *data,
17 enum nl80211_iftype iftype)
18 {
19 struct ieee80211_sta_he_cap *he_cap = &data->he_cap;
20 struct ieee80211_he_cap_elem *he_cap_elem = &he_cap->he_cap_elem;
21 struct ieee80211_he_mcs_nss_supp *he_mcs = &he_cap->he_mcs_nss_supp;
22 int i, nss = hweight8(phy->mt76->antenna_mask);
23 u16 mcs_map = 0;
24
25 for (i = 0; i < 8; i++) {
26 if (i < nss)
27 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
28 else
29 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
30 }
31
32 he_cap->has_he = true;
33
34 he_cap_elem->mac_cap_info[0] = IEEE80211_HE_MAC_CAP0_HTC_HE;
35 he_cap_elem->mac_cap_info[3] = IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
36 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
37 he_cap_elem->mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
38
39 if (band == NL80211_BAND_2GHZ)
40 he_cap_elem->phy_cap_info[0] =
41 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
42 else
43 he_cap_elem->phy_cap_info[0] =
44 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
45 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
46
47 he_cap_elem->phy_cap_info[1] =
48 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
49 he_cap_elem->phy_cap_info[2] =
50 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
51 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
52 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
53 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
54 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
55
56 switch (iftype) {
57 case NL80211_IFTYPE_AP:
58 he_cap_elem->mac_cap_info[2] |=
59 IEEE80211_HE_MAC_CAP2_BSR;
60 he_cap_elem->mac_cap_info[4] |=
61 IEEE80211_HE_MAC_CAP4_BQR;
62 he_cap_elem->mac_cap_info[5] |=
63 IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
64 he_cap_elem->phy_cap_info[3] |=
65 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
66 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
67 he_cap_elem->phy_cap_info[6] |=
68 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
69 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
70 he_cap_elem->phy_cap_info[9] |=
71 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
72 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;
73 break;
74 case NL80211_IFTYPE_STATION:
75 he_cap_elem->mac_cap_info[1] |=
76 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
77
78 if (band == NL80211_BAND_2GHZ)
79 he_cap_elem->phy_cap_info[0] |=
80 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
81 else
82 he_cap_elem->phy_cap_info[0] |=
83 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
84
85 he_cap_elem->phy_cap_info[1] |=
86 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
87 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
88 he_cap_elem->phy_cap_info[3] |=
89 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
90 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
91 he_cap_elem->phy_cap_info[4] |=
92 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
93 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
94 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
95 he_cap_elem->phy_cap_info[5] |=
96 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
97 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
98 he_cap_elem->phy_cap_info[6] |=
99 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
100 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
101 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
102 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
103 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
104 he_cap_elem->phy_cap_info[7] |=
105 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
106 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
107 he_cap_elem->phy_cap_info[8] |=
108 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
109 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
110 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
111 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
112 he_cap_elem->phy_cap_info[9] |=
113 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
114 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
115 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
116 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
117 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
118 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
119 break;
120 default:
121 break;
122 }
123
124 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
125 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
126 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
127 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
128
129 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
130
131 if (he_cap_elem->phy_cap_info[6] &
132 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
133 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss, band);
134 } else {
135 he_cap_elem->phy_cap_info[9] |=
136 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,
137 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
138 }
139
140 if (band == NL80211_BAND_6GHZ) {
141 u16 cap = IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
142 IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
143
144 cap |= u16_encode_bits(IEEE80211_HT_MPDU_DENSITY_0_5,
145 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START) |
146 u16_encode_bits(IEEE80211_VHT_MAX_AMPDU_1024K,
147 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP) |
148 u16_encode_bits(IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454,
149 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
150
151 data->he_6ghz_capa.capa = cpu_to_le16(cap);
152 }
153 }
154
155 static void
mt7925_init_eht_caps(struct mt792x_phy * phy,enum nl80211_band band,struct ieee80211_sband_iftype_data * data)156 mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl80211_band band,
157 struct ieee80211_sband_iftype_data *data)
158 {
159 struct ieee80211_sta_eht_cap *eht_cap = &data->eht_cap;
160 struct ieee80211_eht_cap_elem_fixed *eht_cap_elem = &eht_cap->eht_cap_elem;
161 struct ieee80211_eht_mcs_nss_supp *eht_nss = &eht_cap->eht_mcs_nss_supp;
162 enum nl80211_chan_width width = phy->mt76->chandef.width;
163 int nss = hweight8(phy->mt76->antenna_mask);
164 int sts = hweight16(phy->mt76->chainmask);
165 u8 val;
166
167 if (!phy->dev->has_eht)
168 return;
169
170 eht_cap->has_eht = true;
171
172 eht_cap_elem->mac_cap_info[0] =
173 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
174 IEEE80211_EHT_MAC_CAP0_OM_CONTROL;
175
176 eht_cap_elem->phy_cap_info[0] =
177 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
178 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
179 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
180
181 eht_cap_elem->phy_cap_info[0] |=
182 u8_encode_bits(u8_get_bits(sts - 1, BIT(0)),
183 IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK);
184
185 eht_cap_elem->phy_cap_info[1] =
186 u8_encode_bits(u8_get_bits(sts - 1, GENMASK(2, 1)),
187 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK) |
188 u8_encode_bits(sts - 1,
189 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK);
190
191 eht_cap_elem->phy_cap_info[2] =
192 u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK) |
193 u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK);
194
195 eht_cap_elem->phy_cap_info[3] =
196 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
197 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
198 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
199 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
200 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
201 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
202 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK;
203
204 eht_cap_elem->phy_cap_info[4] =
205 u8_encode_bits(min_t(int, sts - 1, 2),
206 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK);
207
208 eht_cap_elem->phy_cap_info[5] =
209 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
210 u8_encode_bits(IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US,
211 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK) |
212 u8_encode_bits(u8_get_bits(0x11, GENMASK(1, 0)),
213 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK);
214
215 val = width == NL80211_CHAN_WIDTH_160 ? 0x7 :
216 width == NL80211_CHAN_WIDTH_80 ? 0x3 : 0x1;
217 eht_cap_elem->phy_cap_info[6] =
218 u8_encode_bits(u8_get_bits(0x11, GENMASK(4, 2)),
219 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK) |
220 u8_encode_bits(val, IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK);
221
222 eht_cap_elem->phy_cap_info[7] =
223 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
224 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
225 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
226 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ;
227
228 val = u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_RX) |
229 u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_TX);
230
231 eht_nss->bw._80.rx_tx_mcs9_max_nss = val;
232 eht_nss->bw._80.rx_tx_mcs11_max_nss = val;
233 eht_nss->bw._80.rx_tx_mcs13_max_nss = val;
234 eht_nss->bw._160.rx_tx_mcs9_max_nss = val;
235 eht_nss->bw._160.rx_tx_mcs11_max_nss = val;
236 eht_nss->bw._160.rx_tx_mcs13_max_nss = val;
237 }
238
mt7925_init_mlo_caps(struct mt792x_phy * phy)239 int mt7925_init_mlo_caps(struct mt792x_phy *phy)
240 {
241 struct wiphy *wiphy = phy->mt76->hw->wiphy;
242 static const u8 ext_capa_sta[] = {
243 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
244 };
245 static struct wiphy_iftype_ext_capab ext_capab[] = {
246 {
247 .iftype = NL80211_IFTYPE_STATION,
248 .extended_capabilities = ext_capa_sta,
249 .extended_capabilities_mask = ext_capa_sta,
250 .extended_capabilities_len = sizeof(ext_capa_sta),
251 },
252 };
253
254 if (!(phy->chip_cap & MT792x_CHIP_CAP_MLO_EVT_EN))
255 return 0;
256
257 ext_capab[0].eml_capabilities = phy->eml_cap;
258 ext_capab[0].mld_capa_and_ops =
259 u16_encode_bits(0, IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS);
260
261 wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
262 wiphy->iftype_ext_capab = ext_capab;
263 wiphy->num_iftype_ext_capab = ARRAY_SIZE(ext_capab);
264
265 return 0;
266 }
267
268 static void
__mt7925_set_stream_he_eht_caps(struct mt792x_phy * phy,struct ieee80211_supported_band * sband,enum nl80211_band band)269 __mt7925_set_stream_he_eht_caps(struct mt792x_phy *phy,
270 struct ieee80211_supported_band *sband,
271 enum nl80211_band band)
272 {
273 struct ieee80211_sband_iftype_data *data = phy->iftype[band];
274 int i, n = 0;
275
276 for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
277 switch (i) {
278 case NL80211_IFTYPE_STATION:
279 case NL80211_IFTYPE_AP:
280 break;
281 default:
282 continue;
283 }
284
285 data[n].types_mask = BIT(i);
286 mt7925_init_he_caps(phy, band, &data[n], i);
287 mt7925_init_eht_caps(phy, band, &data[n]);
288
289 n++;
290 }
291
292 _ieee80211_set_sband_iftype_data(sband, data, n);
293 }
294
mt7925_set_stream_he_eht_caps(struct mt792x_phy * phy)295 void mt7925_set_stream_he_eht_caps(struct mt792x_phy *phy)
296 {
297 if (phy->mt76->cap.has_2ghz)
298 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_2g.sband,
299 NL80211_BAND_2GHZ);
300
301 if (phy->mt76->cap.has_5ghz)
302 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_5g.sband,
303 NL80211_BAND_5GHZ);
304
305 if (phy->mt76->cap.has_6ghz)
306 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_6g.sband,
307 NL80211_BAND_6GHZ);
308 }
309
__mt7925_start(struct mt792x_phy * phy)310 int __mt7925_start(struct mt792x_phy *phy)
311 {
312 struct mt76_phy *mphy = phy->mt76;
313 struct mt792x_dev *dev = phy->dev;
314 int err;
315
316 err = mt7925_mcu_set_channel_domain(mphy);
317 if (err)
318 return err;
319
320 err = mt7925_mcu_set_rts_thresh(phy, 0x92b);
321 if (err)
322 return err;
323
324 if (!dev->sar_inited) {
325 err = mt7925_set_tx_sar_pwr(mphy->hw, NULL);
326 if (err)
327 return err;
328 dev->sar_inited = true;
329 }
330
331 mt792x_mac_reset_counters(phy);
332 set_bit(MT76_STATE_RUNNING, &mphy->state);
333
334 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
335 MT792x_WATCHDOG_TIME);
336
337 return 0;
338 }
339 EXPORT_SYMBOL_GPL(__mt7925_start);
340
mt7925_start(struct ieee80211_hw * hw)341 static int mt7925_start(struct ieee80211_hw *hw)
342 {
343 struct mt792x_phy *phy = mt792x_hw_phy(hw);
344 int err;
345
346 mt792x_mutex_acquire(phy->dev);
347 err = __mt7925_start(phy);
348 mt792x_mutex_release(phy->dev);
349
350 return err;
351 }
352
mt7925_mac_link_bss_add(struct mt792x_dev * dev,struct ieee80211_bss_conf * link_conf,struct mt792x_link_sta * mlink)353 static int mt7925_mac_link_bss_add(struct mt792x_dev *dev,
354 struct ieee80211_bss_conf *link_conf,
355 struct mt792x_link_sta *mlink)
356 {
357 struct mt792x_bss_conf *mconf = mt792x_link_conf_to_mconf(link_conf);
358 struct ieee80211_vif *vif = link_conf->vif;
359 struct mt792x_vif *mvif = mconf->vif;
360 struct mt76_txq *mtxq;
361 int idx, ret = 0;
362
363 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
364 mconf->mt76.idx = MT792x_MAX_INTERFACES;
365 } else {
366 mconf->mt76.idx = __ffs64(~dev->mt76.vif_mask);
367
368 if (mconf->mt76.idx >= MT792x_MAX_INTERFACES) {
369 ret = -ENOSPC;
370 goto out;
371 }
372 }
373
374 mconf->mt76.omac_idx = ieee80211_vif_is_mld(vif) ?
375 0 : mconf->mt76.idx;
376 mconf->mt76.band_idx = 0xff;
377 mconf->mt76.wmm_idx = ieee80211_vif_is_mld(vif) ?
378 0 : mconf->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
379 mconf->mt76.link_idx = hweight16(mvif->valid_links);
380
381 if (mvif->phy->mt76->chandef.chan->band != NL80211_BAND_2GHZ)
382 mconf->mt76.basic_rates_idx = MT792x_BASIC_RATES_TBL + 4;
383 else
384 mconf->mt76.basic_rates_idx = MT792x_BASIC_RATES_TBL;
385
386 dev->mt76.vif_mask |= BIT_ULL(mconf->mt76.idx);
387 mvif->phy->omac_mask |= BIT_ULL(mconf->mt76.omac_idx);
388
389 idx = MT792x_WTBL_RESERVED - mconf->mt76.idx;
390
391 mlink->wcid.idx = idx;
392 mlink->wcid.tx_info |= MT_WCID_TX_INFO_SET;
393 mt76_wcid_init(&mlink->wcid, 0);
394
395 mt7925_mac_wtbl_update(dev, idx,
396 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
397
398 ewma_rssi_init(&mconf->rssi);
399
400 rcu_assign_pointer(dev->mt76.wcid[idx], &mlink->wcid);
401
402 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, link_conf, &mconf->mt76,
403 &mlink->wcid, true);
404 if (ret)
405 goto out;
406
407 if (vif->txq) {
408 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
409 mtxq->wcid = idx;
410 }
411
412 out:
413 return ret;
414 }
415
416 static int
mt7925_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)417 mt7925_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
418 {
419 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
420 struct mt792x_dev *dev = mt792x_hw_dev(hw);
421 struct mt792x_phy *phy = mt792x_hw_phy(hw);
422 int ret = 0;
423
424 mt792x_mutex_acquire(dev);
425
426 mvif->phy = phy;
427 mvif->bss_conf.vif = mvif;
428 mvif->sta.vif = mvif;
429 mvif->deflink_id = IEEE80211_LINK_UNSPECIFIED;
430 mvif->mlo_pm_state = MT792x_MLO_LINK_DISASSOC;
431
432 ret = mt7925_mac_link_bss_add(dev, &vif->bss_conf, &mvif->sta.deflink);
433 if (ret < 0)
434 goto out;
435
436 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
437 out:
438 mt792x_mutex_release(dev);
439
440 return ret;
441 }
442
mt7925_roc_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)443 static void mt7925_roc_iter(void *priv, u8 *mac,
444 struct ieee80211_vif *vif)
445 {
446 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
447 struct mt792x_phy *phy = priv;
448
449 mt7925_mcu_abort_roc(phy, &mvif->bss_conf, phy->roc_token_id);
450 }
451
mt7925_roc_abort_sync(struct mt792x_dev * dev)452 void mt7925_roc_abort_sync(struct mt792x_dev *dev)
453 {
454 struct mt792x_phy *phy = &dev->phy;
455
456 del_timer_sync(&phy->roc_timer);
457 cancel_work_sync(&phy->roc_work);
458 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
459 ieee80211_iterate_interfaces(mt76_hw(dev),
460 IEEE80211_IFACE_ITER_RESUME_ALL,
461 mt7925_roc_iter, (void *)phy);
462 }
463 EXPORT_SYMBOL_GPL(mt7925_roc_abort_sync);
464
mt7925_roc_work(struct work_struct * work)465 void mt7925_roc_work(struct work_struct *work)
466 {
467 struct mt792x_phy *phy;
468
469 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
470 roc_work);
471
472 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
473 return;
474
475 mt792x_mutex_acquire(phy->dev);
476 ieee80211_iterate_active_interfaces(phy->mt76->hw,
477 IEEE80211_IFACE_ITER_RESUME_ALL,
478 mt7925_roc_iter, phy);
479 mt792x_mutex_release(phy->dev);
480 ieee80211_remain_on_channel_expired(phy->mt76->hw);
481 }
482
mt7925_abort_roc(struct mt792x_phy * phy,struct mt792x_bss_conf * mconf)483 static int mt7925_abort_roc(struct mt792x_phy *phy,
484 struct mt792x_bss_conf *mconf)
485 {
486 int err = 0;
487
488 del_timer_sync(&phy->roc_timer);
489 cancel_work_sync(&phy->roc_work);
490
491 mt792x_mutex_acquire(phy->dev);
492 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
493 err = mt7925_mcu_abort_roc(phy, mconf, phy->roc_token_id);
494 mt792x_mutex_release(phy->dev);
495
496 return err;
497 }
498
mt7925_set_roc(struct mt792x_phy * phy,struct mt792x_bss_conf * mconf,struct ieee80211_channel * chan,int duration,enum mt7925_roc_req type)499 static int mt7925_set_roc(struct mt792x_phy *phy,
500 struct mt792x_bss_conf *mconf,
501 struct ieee80211_channel *chan,
502 int duration,
503 enum mt7925_roc_req type)
504 {
505 int err;
506
507 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
508 return -EBUSY;
509
510 phy->roc_grant = false;
511
512 err = mt7925_mcu_set_roc(phy, mconf, chan, duration, type,
513 ++phy->roc_token_id);
514 if (err < 0) {
515 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
516 goto out;
517 }
518
519 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, 4 * HZ)) {
520 mt7925_mcu_abort_roc(phy, mconf, phy->roc_token_id);
521 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
522 err = -ETIMEDOUT;
523 }
524
525 out:
526 return err;
527 }
528
mt7925_set_mlo_roc(struct mt792x_phy * phy,struct mt792x_bss_conf * mconf,u16 sel_links)529 static int mt7925_set_mlo_roc(struct mt792x_phy *phy,
530 struct mt792x_bss_conf *mconf,
531 u16 sel_links)
532 {
533 int err;
534
535 if (WARN_ON_ONCE(test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)))
536 return -EBUSY;
537
538 phy->roc_grant = false;
539
540 err = mt7925_mcu_set_mlo_roc(mconf, sel_links, 5, ++phy->roc_token_id);
541 if (err < 0) {
542 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
543 goto out;
544 }
545
546 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, 4 * HZ)) {
547 mt7925_mcu_abort_roc(phy, mconf, phy->roc_token_id);
548 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
549 err = -ETIMEDOUT;
550 }
551
552 out:
553 return err;
554 }
555
mt7925_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)556 static int mt7925_remain_on_channel(struct ieee80211_hw *hw,
557 struct ieee80211_vif *vif,
558 struct ieee80211_channel *chan,
559 int duration,
560 enum ieee80211_roc_type type)
561 {
562 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
563 struct mt792x_phy *phy = mt792x_hw_phy(hw);
564 int err;
565
566 mt792x_mutex_acquire(phy->dev);
567 err = mt7925_set_roc(phy, &mvif->bss_conf,
568 chan, duration, MT7925_ROC_REQ_ROC);
569 mt792x_mutex_release(phy->dev);
570
571 return err;
572 }
573
mt7925_cancel_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif)574 static int mt7925_cancel_remain_on_channel(struct ieee80211_hw *hw,
575 struct ieee80211_vif *vif)
576 {
577 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
578 struct mt792x_phy *phy = mt792x_hw_phy(hw);
579
580 return mt7925_abort_roc(phy, &mvif->bss_conf);
581 }
582
mt7925_set_link_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,int link_id)583 static int mt7925_set_link_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
584 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
585 struct ieee80211_key_conf *key, int link_id)
586 {
587 struct mt792x_dev *dev = mt792x_hw_dev(hw);
588 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
589 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
590 &mvif->sta;
591 struct ieee80211_bss_conf *link_conf;
592 struct ieee80211_link_sta *link_sta;
593 int idx = key->keyidx, err = 0;
594 struct mt792x_link_sta *mlink;
595 struct mt792x_bss_conf *mconf;
596 struct mt76_wcid *wcid;
597 u8 *wcid_keyidx;
598
599 link_conf = mt792x_vif_to_bss_conf(vif, link_id);
600 link_sta = sta ? mt792x_sta_to_link_sta(vif, sta, link_id) : NULL;
601 mconf = mt792x_vif_to_link(mvif, link_id);
602 mlink = mt792x_sta_to_link(msta, link_id);
603 wcid = &mlink->wcid;
604 wcid_keyidx = &wcid->hw_key_idx;
605
606 /* fall back to sw encryption for unsupported ciphers */
607 switch (key->cipher) {
608 case WLAN_CIPHER_SUITE_AES_CMAC:
609 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
610 wcid_keyidx = &wcid->hw_key_idx2;
611 break;
612 case WLAN_CIPHER_SUITE_WEP40:
613 case WLAN_CIPHER_SUITE_WEP104:
614 if (!mvif->wep_sta)
615 return -EOPNOTSUPP;
616 break;
617 case WLAN_CIPHER_SUITE_TKIP:
618 case WLAN_CIPHER_SUITE_CCMP:
619 case WLAN_CIPHER_SUITE_CCMP_256:
620 case WLAN_CIPHER_SUITE_GCMP:
621 case WLAN_CIPHER_SUITE_GCMP_256:
622 case WLAN_CIPHER_SUITE_SMS4:
623 break;
624 default:
625 return -EOPNOTSUPP;
626 }
627
628 if (cmd == SET_KEY && !mconf->mt76.cipher) {
629 struct mt792x_phy *phy = mt792x_hw_phy(hw);
630
631 mconf->mt76.cipher = mt7925_mcu_get_cipher(key->cipher);
632 mt7925_mcu_add_bss_info(phy, mconf->mt76.ctx, link_conf,
633 link_sta, true);
634 }
635
636 if (cmd == SET_KEY)
637 *wcid_keyidx = idx;
638 else if (idx == *wcid_keyidx)
639 *wcid_keyidx = -1;
640 else
641 goto out;
642
643 mt76_wcid_key_setup(&dev->mt76, wcid,
644 cmd == SET_KEY ? key : NULL);
645
646 err = mt7925_mcu_add_key(&dev->mt76, vif, &mlink->bip,
647 key, MCU_UNI_CMD(STA_REC_UPDATE),
648 &mlink->wcid, cmd, msta);
649
650 if (err)
651 goto out;
652
653 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
654 key->cipher == WLAN_CIPHER_SUITE_WEP40)
655 err = mt7925_mcu_add_key(&dev->mt76, vif, &mvif->wep_sta->deflink.bip,
656 key, MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
657 &mvif->wep_sta->deflink.wcid, cmd, msta);
658 out:
659 return err;
660 }
661
mt7925_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)662 static int mt7925_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
663 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
664 struct ieee80211_key_conf *key)
665 {
666 struct mt792x_dev *dev = mt792x_hw_dev(hw);
667 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
668 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
669 &mvif->sta;
670 int err;
671
672 /* The hardware does not support per-STA RX GTK, fallback
673 * to software mode for these.
674 */
675 if ((vif->type == NL80211_IFTYPE_ADHOC ||
676 vif->type == NL80211_IFTYPE_MESH_POINT) &&
677 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
678 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
679 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
680 return -EOPNOTSUPP;
681
682 mt792x_mutex_acquire(dev);
683
684 if (ieee80211_vif_is_mld(vif)) {
685 unsigned int link_id;
686 unsigned long add;
687
688 add = key->link_id != -1 ? BIT(key->link_id) : msta->valid_links;
689
690 for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
691 err = mt7925_set_link_key(hw, cmd, vif, sta, key, link_id);
692 if (err < 0)
693 break;
694 }
695 } else {
696 err = mt7925_set_link_key(hw, cmd, vif, sta, key, vif->bss_conf.link_id);
697 }
698
699 mt792x_mutex_release(dev);
700
701 return err;
702 }
703
704 static void
mt7925_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)705 mt7925_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
706 {
707 struct mt792x_dev *dev = priv;
708 struct ieee80211_hw *hw = mt76_hw(dev);
709 bool pm_enable = dev->pm.enable;
710 int err;
711
712 err = mt7925_mcu_set_beacon_filter(dev, vif, pm_enable);
713 if (err < 0)
714 return;
715
716 if (pm_enable) {
717 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
718 ieee80211_hw_set(hw, CONNECTION_MONITOR);
719 } else {
720 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
721 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
722 }
723 }
724
725 static void
mt7925_sniffer_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)726 mt7925_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
727 {
728 struct mt792x_dev *dev = priv;
729 struct ieee80211_hw *hw = mt76_hw(dev);
730 struct mt76_connac_pm *pm = &dev->pm;
731 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
732
733 mt7925_mcu_set_sniffer(dev, vif, monitor);
734 pm->enable = pm->enable_user && !monitor;
735 pm->ds_enable = pm->ds_enable_user && !monitor;
736
737 mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);
738
739 if (monitor)
740 mt7925_mcu_set_beacon_filter(dev, vif, false);
741 }
742
mt7925_set_runtime_pm(struct mt792x_dev * dev)743 void mt7925_set_runtime_pm(struct mt792x_dev *dev)
744 {
745 struct ieee80211_hw *hw = mt76_hw(dev);
746 struct mt76_connac_pm *pm = &dev->pm;
747 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
748
749 pm->enable = pm->enable_user && !monitor;
750 ieee80211_iterate_active_interfaces(hw,
751 IEEE80211_IFACE_ITER_RESUME_ALL,
752 mt7925_pm_interface_iter, dev);
753 pm->ds_enable = pm->ds_enable_user && !monitor;
754 mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);
755 }
756
mt7925_config(struct ieee80211_hw * hw,u32 changed)757 static int mt7925_config(struct ieee80211_hw *hw, u32 changed)
758 {
759 struct mt792x_dev *dev = mt792x_hw_dev(hw);
760 int ret = 0;
761
762 mt792x_mutex_acquire(dev);
763
764 if (changed & IEEE80211_CONF_CHANGE_POWER) {
765 ret = mt7925_set_tx_sar_pwr(hw, NULL);
766 if (ret)
767 goto out;
768 }
769
770 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
771 ieee80211_iterate_active_interfaces(hw,
772 IEEE80211_IFACE_ITER_RESUME_ALL,
773 mt7925_sniffer_interface_iter, dev);
774 }
775
776 out:
777 mt792x_mutex_release(dev);
778
779 return ret;
780 }
781
mt7925_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)782 static void mt7925_configure_filter(struct ieee80211_hw *hw,
783 unsigned int changed_flags,
784 unsigned int *total_flags,
785 u64 multicast)
786 {
787 #define MT7925_FILTER_FCSFAIL BIT(2)
788 #define MT7925_FILTER_CONTROL BIT(5)
789 #define MT7925_FILTER_OTHER_BSS BIT(6)
790 #define MT7925_FILTER_ENABLE BIT(31)
791 struct mt792x_dev *dev = mt792x_hw_dev(hw);
792 u32 flags = MT7925_FILTER_ENABLE;
793
794 #define MT7925_FILTER(_fif, _type) do { \
795 if (*total_flags & (_fif)) \
796 flags |= MT7925_FILTER_##_type; \
797 } while (0)
798
799 MT7925_FILTER(FIF_FCSFAIL, FCSFAIL);
800 MT7925_FILTER(FIF_CONTROL, CONTROL);
801 MT7925_FILTER(FIF_OTHER_BSS, OTHER_BSS);
802
803 mt792x_mutex_acquire(dev);
804 mt7925_mcu_set_rxfilter(dev, flags, 0, 0);
805 mt792x_mutex_release(dev);
806
807 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
808 }
809
810 static u8
mt7925_get_rates_table(struct ieee80211_hw * hw,struct ieee80211_vif * vif,bool beacon,bool mcast)811 mt7925_get_rates_table(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
812 bool beacon, bool mcast)
813 {
814 struct mt76_vif_link *mvif = (struct mt76_vif_link *)vif->drv_priv;
815 struct mt76_phy *mphy = hw->priv;
816 u16 rate;
817 u8 i, idx, ht;
818
819 rate = mt76_connac2_mac_tx_rate_val(mphy, &vif->bss_conf, beacon, mcast);
820 ht = FIELD_GET(MT_TX_RATE_MODE, rate) > MT_PHY_TYPE_OFDM;
821
822 if (beacon && ht) {
823 struct mt792x_dev *dev = mt792x_hw_dev(hw);
824
825 /* must odd index */
826 idx = MT7925_BEACON_RATES_TBL + 2 * (mvif->idx % 20);
827 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
828 return idx;
829 }
830
831 idx = FIELD_GET(MT_TX_RATE_IDX, rate);
832 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
833 if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
834 return MT792x_BASIC_RATES_TBL + i;
835
836 return mvif->basic_rates_idx;
837 }
838
mt7925_mac_link_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta)839 static int mt7925_mac_link_sta_add(struct mt76_dev *mdev,
840 struct ieee80211_vif *vif,
841 struct ieee80211_link_sta *link_sta)
842 {
843 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
844 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
845 struct ieee80211_bss_conf *link_conf;
846 struct mt792x_bss_conf *mconf;
847 u8 link_id = link_sta->link_id;
848 struct mt792x_link_sta *mlink;
849 struct mt792x_sta *msta;
850 struct mt76_wcid *wcid;
851 int ret, idx;
852
853 msta = (struct mt792x_sta *)link_sta->sta->drv_priv;
854 mlink = mt792x_sta_to_link(msta, link_id);
855
856 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
857 if (idx < 0)
858 return -ENOSPC;
859
860 mconf = mt792x_vif_to_link(mvif, link_id);
861 mt76_wcid_init(&mlink->wcid, 0);
862 mlink->wcid.sta = 1;
863 mlink->wcid.idx = idx;
864 mlink->wcid.tx_info |= MT_WCID_TX_INFO_SET;
865 mlink->last_txs = jiffies;
866 mlink->wcid.link_id = link_sta->link_id;
867 mlink->wcid.link_valid = !!link_sta->sta->valid_links;
868 mlink->sta = msta;
869
870 wcid = &mlink->wcid;
871 ewma_signal_init(&wcid->rssi);
872 rcu_assign_pointer(dev->mt76.wcid[wcid->idx], wcid);
873 mt76_wcid_init(wcid, 0);
874 ewma_avg_signal_init(&mlink->avg_ack_signal);
875 memset(mlink->airtime_ac, 0,
876 sizeof(msta->deflink.airtime_ac));
877
878 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
879 if (ret)
880 return ret;
881
882 mt7925_mac_wtbl_update(dev, idx,
883 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
884
885 link_conf = mt792x_vif_to_bss_conf(vif, link_id);
886
887 /* should update bss info before STA add */
888 if (vif->type == NL80211_IFTYPE_STATION && !link_sta->sta->tdls) {
889 if (ieee80211_vif_is_mld(vif))
890 mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx,
891 link_conf, link_sta, link_sta != mlink->pri_link);
892 else
893 mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx,
894 link_conf, link_sta, false);
895 }
896
897 if (ieee80211_vif_is_mld(vif) &&
898 link_sta == mlink->pri_link) {
899 ret = mt7925_mcu_sta_update(dev, link_sta, vif, true,
900 MT76_STA_INFO_STATE_NONE);
901 if (ret)
902 return ret;
903 } else if (ieee80211_vif_is_mld(vif) &&
904 link_sta != mlink->pri_link) {
905 ret = mt7925_mcu_sta_update(dev, mlink->pri_link, vif,
906 true, MT76_STA_INFO_STATE_ASSOC);
907 if (ret)
908 return ret;
909
910 ret = mt7925_mcu_sta_update(dev, link_sta, vif, true,
911 MT76_STA_INFO_STATE_ASSOC);
912 if (ret)
913 return ret;
914 } else {
915 ret = mt7925_mcu_sta_update(dev, link_sta, vif, true,
916 MT76_STA_INFO_STATE_NONE);
917 if (ret)
918 return ret;
919 }
920
921 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
922
923 return 0;
924 }
925
926 static int
mt7925_mac_sta_add_links(struct mt792x_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,unsigned long new_links)927 mt7925_mac_sta_add_links(struct mt792x_dev *dev, struct ieee80211_vif *vif,
928 struct ieee80211_sta *sta, unsigned long new_links)
929 {
930 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
931 unsigned int link_id;
932 int err = 0;
933
934 for_each_set_bit(link_id, &new_links, IEEE80211_MLD_MAX_NUM_LINKS) {
935 struct ieee80211_link_sta *link_sta;
936 struct mt792x_link_sta *mlink;
937
938 if (msta->deflink_id == IEEE80211_LINK_UNSPECIFIED) {
939 mlink = &msta->deflink;
940 msta->deflink_id = link_id;
941 } else {
942 mlink = devm_kzalloc(dev->mt76.dev, sizeof(*mlink), GFP_KERNEL);
943 if (!mlink) {
944 err = -ENOMEM;
945 break;
946 }
947 }
948
949 msta->valid_links |= BIT(link_id);
950 rcu_assign_pointer(msta->link[link_id], mlink);
951 mlink->sta = msta;
952 mlink->pri_link = &sta->deflink;
953 mlink->wcid.def_wcid = &msta->deflink.wcid;
954
955 link_sta = mt792x_sta_to_link_sta(vif, sta, link_id);
956 mt7925_mac_link_sta_add(&dev->mt76, vif, link_sta);
957 }
958
959 return err;
960 }
961
mt7925_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)962 int mt7925_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
963 struct ieee80211_sta *sta)
964 {
965 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
966 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
967 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
968 int err;
969
970 msta->vif = mvif;
971
972 if (vif->type == NL80211_IFTYPE_STATION)
973 mvif->wep_sta = msta;
974
975 if (ieee80211_vif_is_mld(vif)) {
976 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
977
978 err = mt7925_mac_sta_add_links(dev, vif, sta, sta->valid_links);
979 } else {
980 err = mt7925_mac_link_sta_add(mdev, vif, &sta->deflink);
981 }
982
983 return err;
984 }
985 EXPORT_SYMBOL_GPL(mt7925_mac_sta_add);
986
987 static u16
mt7925_mac_select_links(struct mt76_dev * mdev,struct ieee80211_vif * vif)988 mt7925_mac_select_links(struct mt76_dev *mdev, struct ieee80211_vif *vif)
989 {
990 unsigned long usable_links = ieee80211_vif_usable_links(vif);
991 struct {
992 u8 link_id;
993 enum nl80211_band band;
994 } data[IEEE80211_MLD_MAX_NUM_LINKS];
995 u8 link_id, i, j, n_data = 0;
996 u16 sel_links = 0;
997
998 if (!ieee80211_vif_is_mld(vif))
999 return 0;
1000
1001 if (vif->active_links == usable_links)
1002 return vif->active_links;
1003
1004 rcu_read_lock();
1005 for_each_set_bit(link_id, &usable_links, IEEE80211_MLD_MAX_NUM_LINKS) {
1006 struct ieee80211_bss_conf *link_conf =
1007 rcu_dereference(vif->link_conf[link_id]);
1008
1009 if (WARN_ON_ONCE(!link_conf))
1010 continue;
1011
1012 data[n_data].link_id = link_id;
1013 data[n_data].band = link_conf->chanreq.oper.chan->band;
1014 n_data++;
1015 }
1016 rcu_read_unlock();
1017
1018 for (i = 0; i < n_data; i++) {
1019 if (!(BIT(data[i].link_id) & vif->active_links))
1020 continue;
1021
1022 sel_links = BIT(data[i].link_id);
1023
1024 for (j = 0; j < n_data; j++) {
1025 if (data[i].band != data[j].band) {
1026 sel_links |= BIT(data[j].link_id);
1027 break;
1028 }
1029 }
1030
1031 break;
1032 }
1033
1034 return sel_links;
1035 }
1036
1037 static void
mt7925_mac_set_links(struct mt76_dev * mdev,struct ieee80211_vif * vif)1038 mt7925_mac_set_links(struct mt76_dev *mdev, struct ieee80211_vif *vif)
1039 {
1040 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
1041 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1042 struct ieee80211_bss_conf *link_conf =
1043 mt792x_vif_to_bss_conf(vif, mvif->deflink_id);
1044 struct cfg80211_chan_def *chandef = &link_conf->chanreq.oper;
1045 enum nl80211_band band = chandef->chan->band, secondary_band;
1046
1047 u16 sel_links = mt7925_mac_select_links(mdev, vif);
1048 u8 secondary_link_id = __ffs(~BIT(mvif->deflink_id) & sel_links);
1049
1050 if (!ieee80211_vif_is_mld(vif) || hweight16(sel_links) < 2)
1051 return;
1052
1053 link_conf = mt792x_vif_to_bss_conf(vif, secondary_link_id);
1054 secondary_band = link_conf->chanreq.oper.chan->band;
1055
1056 if (band == NL80211_BAND_2GHZ ||
1057 (band == NL80211_BAND_5GHZ && secondary_band == NL80211_BAND_6GHZ)) {
1058 mt7925_abort_roc(mvif->phy, &mvif->bss_conf);
1059
1060 mt792x_mutex_acquire(dev);
1061
1062 mt7925_set_mlo_roc(mvif->phy, &mvif->bss_conf, sel_links);
1063
1064 mt792x_mutex_release(dev);
1065 }
1066
1067 ieee80211_set_active_links_async(vif, sel_links);
1068 }
1069
mt7925_mac_link_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta)1070 static void mt7925_mac_link_sta_assoc(struct mt76_dev *mdev,
1071 struct ieee80211_vif *vif,
1072 struct ieee80211_link_sta *link_sta)
1073 {
1074 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
1075 struct ieee80211_bss_conf *link_conf;
1076 struct mt792x_link_sta *mlink;
1077 struct mt792x_sta *msta;
1078
1079 msta = (struct mt792x_sta *)link_sta->sta->drv_priv;
1080 mlink = mt792x_sta_to_link(msta, link_sta->link_id);
1081
1082 mt792x_mutex_acquire(dev);
1083
1084 if (ieee80211_vif_is_mld(vif)) {
1085 link_conf = mt792x_vif_to_bss_conf(vif, msta->deflink_id);
1086 } else {
1087 link_conf = mt792x_vif_to_bss_conf(vif, vif->bss_conf.link_id);
1088 }
1089
1090 if (vif->type == NL80211_IFTYPE_STATION && !link_sta->sta->tdls) {
1091 struct mt792x_bss_conf *mconf;
1092
1093 mconf = mt792x_link_conf_to_mconf(link_conf);
1094 mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx,
1095 link_conf, link_sta, true);
1096 }
1097
1098 ewma_avg_signal_init(&mlink->avg_ack_signal);
1099
1100 mt7925_mac_wtbl_update(dev, mlink->wcid.idx,
1101 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
1102 memset(mlink->airtime_ac, 0, sizeof(mlink->airtime_ac));
1103
1104 mt7925_mcu_sta_update(dev, link_sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
1105
1106 mt792x_mutex_release(dev);
1107 }
1108
mt7925_mac_sta_event(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum mt76_sta_event ev)1109 int mt7925_mac_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif,
1110 struct ieee80211_sta *sta, enum mt76_sta_event ev)
1111 {
1112 struct ieee80211_link_sta *link_sta = &sta->deflink;
1113
1114 if (ev != MT76_STA_EVENT_ASSOC)
1115 return 0;
1116
1117 if (ieee80211_vif_is_mld(vif)) {
1118 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1119
1120 link_sta = mt792x_sta_to_link_sta(vif, sta, msta->deflink_id);
1121 mt7925_mac_set_links(mdev, vif);
1122 }
1123
1124 mt7925_mac_link_sta_assoc(mdev, vif, link_sta);
1125
1126 return 0;
1127 }
1128 EXPORT_SYMBOL_GPL(mt7925_mac_sta_event);
1129
mt7925_mac_link_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_link_sta * link_sta)1130 static void mt7925_mac_link_sta_remove(struct mt76_dev *mdev,
1131 struct ieee80211_vif *vif,
1132 struct ieee80211_link_sta *link_sta)
1133 {
1134 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
1135 struct ieee80211_bss_conf *link_conf;
1136 u8 link_id = link_sta->link_id;
1137 struct mt792x_link_sta *mlink;
1138 struct mt792x_sta *msta;
1139
1140 msta = (struct mt792x_sta *)link_sta->sta->drv_priv;
1141 mlink = mt792x_sta_to_link(msta, link_id);
1142
1143 mt7925_roc_abort_sync(dev);
1144
1145 mt76_connac_free_pending_tx_skbs(&dev->pm, &mlink->wcid);
1146 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
1147
1148 mt7925_mcu_sta_update(dev, link_sta, vif, false,
1149 MT76_STA_INFO_STATE_NONE);
1150 mt7925_mac_wtbl_update(dev, mlink->wcid.idx,
1151 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
1152
1153 link_conf = mt792x_vif_to_bss_conf(vif, link_id);
1154
1155 if (vif->type == NL80211_IFTYPE_STATION && !link_sta->sta->tdls) {
1156 struct mt792x_bss_conf *mconf;
1157
1158 mconf = mt792x_link_conf_to_mconf(link_conf);
1159
1160 if (ieee80211_vif_is_mld(vif))
1161 mt792x_mac_link_bss_remove(dev, mconf, mlink);
1162 else
1163 mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx, link_conf,
1164 link_sta, false);
1165 }
1166
1167 spin_lock_bh(&mdev->sta_poll_lock);
1168 if (!list_empty(&mlink->wcid.poll_list))
1169 list_del_init(&mlink->wcid.poll_list);
1170 spin_unlock_bh(&mdev->sta_poll_lock);
1171
1172 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
1173 }
1174
1175 static int
mt7925_mac_sta_remove_links(struct mt792x_dev * dev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,unsigned long old_links)1176 mt7925_mac_sta_remove_links(struct mt792x_dev *dev, struct ieee80211_vif *vif,
1177 struct ieee80211_sta *sta, unsigned long old_links)
1178 {
1179 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1180 struct mt76_dev *mdev = &dev->mt76;
1181 struct mt76_wcid *wcid;
1182 unsigned int link_id;
1183
1184 /* clean up bss before starec */
1185 for_each_set_bit(link_id, &old_links, IEEE80211_MLD_MAX_NUM_LINKS) {
1186 struct ieee80211_link_sta *link_sta;
1187 struct ieee80211_bss_conf *link_conf;
1188 struct mt792x_bss_conf *mconf;
1189 struct mt792x_link_sta *mlink;
1190
1191 link_sta = mt792x_sta_to_link_sta(vif, sta, link_id);
1192 if (!link_sta)
1193 continue;
1194
1195 mlink = mt792x_sta_to_link(msta, link_id);
1196 if (!mlink)
1197 continue;
1198
1199 link_conf = mt792x_vif_to_bss_conf(vif, link_id);
1200 if (!link_conf)
1201 continue;
1202
1203 mconf = mt792x_link_conf_to_mconf(link_conf);
1204
1205 mt7925_mcu_add_bss_info(&dev->phy, mconf->mt76.ctx, link_conf,
1206 link_sta, false);
1207 }
1208
1209 for_each_set_bit(link_id, &old_links, IEEE80211_MLD_MAX_NUM_LINKS) {
1210 struct ieee80211_link_sta *link_sta;
1211 struct mt792x_link_sta *mlink;
1212
1213 link_sta = mt792x_sta_to_link_sta(vif, sta, link_id);
1214 if (!link_sta)
1215 continue;
1216
1217 mlink = mt792x_sta_to_link(msta, link_id);
1218 if (!mlink)
1219 continue;
1220
1221 mt7925_mac_link_sta_remove(&dev->mt76, vif, link_sta);
1222
1223 wcid = &mlink->wcid;
1224 rcu_assign_pointer(msta->link[link_id], NULL);
1225 msta->valid_links &= ~BIT(link_id);
1226 mlink->sta = NULL;
1227 mlink->pri_link = NULL;
1228
1229 if (link_sta != mlink->pri_link) {
1230 mt76_wcid_cleanup(mdev, wcid);
1231 mt76_wcid_mask_clear(mdev->wcid_mask, wcid->idx);
1232 }
1233
1234 if (msta->deflink_id == link_id)
1235 msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
1236 }
1237
1238 return 0;
1239 }
1240
mt7925_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)1241 void mt7925_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
1242 struct ieee80211_sta *sta)
1243 {
1244 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
1245 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1246 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1247 unsigned long rem;
1248
1249 rem = ieee80211_vif_is_mld(vif) ? msta->valid_links : BIT(0);
1250
1251 mt7925_mac_sta_remove_links(dev, vif, sta, rem);
1252
1253 if (ieee80211_vif_is_mld(vif))
1254 mt7925_mcu_del_dev(mdev, vif);
1255
1256 if (vif->type == NL80211_IFTYPE_STATION) {
1257 mvif->wep_sta = NULL;
1258 ewma_rssi_init(&mvif->bss_conf.rssi);
1259 }
1260
1261 mvif->mlo_pm_state = MT792x_MLO_LINK_DISASSOC;
1262 }
1263 EXPORT_SYMBOL_GPL(mt7925_mac_sta_remove);
1264
mt7925_set_rts_threshold(struct ieee80211_hw * hw,u32 val)1265 static int mt7925_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
1266 {
1267 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1268
1269 mt792x_mutex_acquire(dev);
1270 mt7925_mcu_set_rts_thresh(&dev->phy, val);
1271 mt792x_mutex_release(dev);
1272
1273 return 0;
1274 }
1275
1276 static int
mt7925_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1277 mt7925_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1278 struct ieee80211_ampdu_params *params)
1279 {
1280 enum ieee80211_ampdu_mlme_action action = params->action;
1281 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1282 struct ieee80211_sta *sta = params->sta;
1283 struct ieee80211_txq *txq = sta->txq[params->tid];
1284 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1285 u16 tid = params->tid;
1286 u16 ssn = params->ssn;
1287 struct mt76_txq *mtxq;
1288 int ret = 0;
1289
1290 if (!txq)
1291 return -EINVAL;
1292
1293 mtxq = (struct mt76_txq *)txq->drv_priv;
1294
1295 mt792x_mutex_acquire(dev);
1296 switch (action) {
1297 case IEEE80211_AMPDU_RX_START:
1298 mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn,
1299 params->buf_size);
1300 mt7925_mcu_uni_rx_ba(dev, params, true);
1301 break;
1302 case IEEE80211_AMPDU_RX_STOP:
1303 mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid);
1304 mt7925_mcu_uni_rx_ba(dev, params, false);
1305 break;
1306 case IEEE80211_AMPDU_TX_OPERATIONAL:
1307 mtxq->aggr = true;
1308 mtxq->send_bar = false;
1309 mt7925_mcu_uni_tx_ba(dev, params, true);
1310 break;
1311 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1312 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1313 mtxq->aggr = false;
1314 clear_bit(tid, &msta->deflink.wcid.ampdu_state);
1315 mt7925_mcu_uni_tx_ba(dev, params, false);
1316 break;
1317 case IEEE80211_AMPDU_TX_START:
1318 set_bit(tid, &msta->deflink.wcid.ampdu_state);
1319 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
1320 break;
1321 case IEEE80211_AMPDU_TX_STOP_CONT:
1322 mtxq->aggr = false;
1323 clear_bit(tid, &msta->deflink.wcid.ampdu_state);
1324 mt7925_mcu_uni_tx_ba(dev, params, false);
1325 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1326 break;
1327 }
1328 mt792x_mutex_release(dev);
1329
1330 return ret;
1331 }
1332
1333 static void
mt7925_mlo_pm_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1334 mt7925_mlo_pm_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
1335 {
1336 struct mt792x_dev *dev = priv;
1337 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1338 unsigned long valid = ieee80211_vif_is_mld(vif) ?
1339 mvif->valid_links : BIT(0);
1340 struct ieee80211_bss_conf *bss_conf;
1341 int i;
1342
1343 if (mvif->mlo_pm_state != MT792x_MLO_CHANGED_PS)
1344 return;
1345
1346 mt792x_mutex_acquire(dev);
1347 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1348 bss_conf = mt792x_vif_to_bss_conf(vif, i);
1349 mt7925_mcu_uni_bss_ps(dev, bss_conf);
1350 }
1351 mt792x_mutex_release(dev);
1352 }
1353
mt7925_mlo_pm_work(struct work_struct * work)1354 void mt7925_mlo_pm_work(struct work_struct *work)
1355 {
1356 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
1357 mlo_pm_work.work);
1358 struct ieee80211_hw *hw = mt76_hw(dev);
1359
1360 ieee80211_iterate_active_interfaces(hw,
1361 IEEE80211_IFACE_ITER_RESUME_ALL,
1362 mt7925_mlo_pm_iter, dev);
1363 }
1364
is_valid_alpha2(const char * alpha2)1365 static bool is_valid_alpha2(const char *alpha2)
1366 {
1367 if (!alpha2)
1368 return false;
1369
1370 if (alpha2[0] == '0' && alpha2[1] == '0')
1371 return true;
1372
1373 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
1374 return true;
1375
1376 return false;
1377 }
1378
mt7925_scan_work(struct work_struct * work)1379 void mt7925_scan_work(struct work_struct *work)
1380 {
1381 struct mt792x_phy *phy;
1382
1383 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
1384 scan_work.work);
1385
1386 while (true) {
1387 struct mt76_dev *mdev = &phy->dev->mt76;
1388 struct sk_buff *skb;
1389 struct tlv *tlv;
1390 int tlv_len;
1391
1392 spin_lock_bh(&phy->dev->mt76.lock);
1393 skb = __skb_dequeue(&phy->scan_event_list);
1394 spin_unlock_bh(&phy->dev->mt76.lock);
1395
1396 if (!skb)
1397 break;
1398
1399 skb_pull(skb, sizeof(struct mt7925_mcu_rxd) + 4);
1400 tlv = (struct tlv *)skb->data;
1401 tlv_len = skb->len;
1402
1403 while (tlv_len > 0 && le16_to_cpu(tlv->len) <= tlv_len) {
1404 struct mt7925_mcu_scan_chinfo_event *evt;
1405
1406 switch (le16_to_cpu(tlv->tag)) {
1407 case UNI_EVENT_SCAN_DONE_BASIC:
1408 if (test_and_clear_bit(MT76_HW_SCANNING, &phy->mt76->state)) {
1409 struct cfg80211_scan_info info = {
1410 .aborted = false,
1411 };
1412 ieee80211_scan_completed(phy->mt76->hw, &info);
1413 }
1414 break;
1415 case UNI_EVENT_SCAN_DONE_CHNLINFO:
1416 evt = (struct mt7925_mcu_scan_chinfo_event *)tlv->data;
1417
1418 if (!is_valid_alpha2(evt->alpha2))
1419 break;
1420
1421 if (mdev->alpha2[0] != '0' && mdev->alpha2[1] != '0')
1422 break;
1423
1424 mt7925_mcu_set_clc(phy->dev, evt->alpha2, ENVIRON_INDOOR);
1425
1426 break;
1427 case UNI_EVENT_SCAN_DONE_NLO:
1428 ieee80211_sched_scan_results(phy->mt76->hw);
1429 break;
1430 default:
1431 break;
1432 }
1433
1434 tlv_len -= le16_to_cpu(tlv->len);
1435 tlv = (struct tlv *)((char *)(tlv) + le16_to_cpu(tlv->len));
1436 }
1437
1438 dev_kfree_skb(skb);
1439 }
1440 }
1441
1442 static int
mt7925_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)1443 mt7925_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1444 struct ieee80211_scan_request *req)
1445 {
1446 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1447 struct mt76_phy *mphy = hw->priv;
1448 int err;
1449
1450 mt792x_mutex_acquire(dev);
1451 err = mt7925_mcu_hw_scan(mphy, vif, req);
1452 mt792x_mutex_release(dev);
1453
1454 return err;
1455 }
1456
1457 static void
mt7925_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1458 mt7925_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1459 {
1460 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1461 struct mt76_phy *mphy = hw->priv;
1462
1463 mt792x_mutex_acquire(dev);
1464 mt7925_mcu_cancel_hw_scan(mphy, vif);
1465 mt792x_mutex_release(dev);
1466 }
1467
1468 static int
mt7925_start_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_sched_scan_request * req,struct ieee80211_scan_ies * ies)1469 mt7925_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1470 struct cfg80211_sched_scan_request *req,
1471 struct ieee80211_scan_ies *ies)
1472 {
1473 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1474 struct mt76_phy *mphy = hw->priv;
1475 int err;
1476
1477 mt792x_mutex_acquire(dev);
1478
1479 err = mt7925_mcu_sched_scan_req(mphy, vif, req);
1480 if (err < 0)
1481 goto out;
1482
1483 err = mt7925_mcu_sched_scan_enable(mphy, vif, true);
1484 out:
1485 mt792x_mutex_release(dev);
1486
1487 return err;
1488 }
1489
1490 static int
mt7925_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1491 mt7925_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1492 {
1493 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1494 struct mt76_phy *mphy = hw->priv;
1495 int err;
1496
1497 mt792x_mutex_acquire(dev);
1498 err = mt7925_mcu_sched_scan_enable(mphy, vif, false);
1499 mt792x_mutex_release(dev);
1500
1501 return err;
1502 }
1503
1504 static int
mt7925_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)1505 mt7925_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1506 {
1507 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1508 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1509 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
1510
1511 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1512 return -EINVAL;
1513
1514 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1515 tx_ant = BIT(ffs(tx_ant) - 1) - 1;
1516
1517 mt792x_mutex_acquire(dev);
1518
1519 phy->mt76->antenna_mask = tx_ant;
1520 phy->mt76->chainmask = tx_ant;
1521
1522 mt76_set_stream_caps(phy->mt76, true);
1523 mt7925_set_stream_he_eht_caps(phy);
1524
1525 /* TODO: update bmc_wtbl spe_idx when antenna changes */
1526 mt792x_mutex_release(dev);
1527
1528 return 0;
1529 }
1530
1531 #ifdef CONFIG_PM
mt7925_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1532 static int mt7925_suspend(struct ieee80211_hw *hw,
1533 struct cfg80211_wowlan *wowlan)
1534 {
1535 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1536 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1537
1538 cancel_delayed_work_sync(&phy->scan_work);
1539 cancel_delayed_work_sync(&phy->mt76->mac_work);
1540
1541 cancel_delayed_work_sync(&dev->pm.ps_work);
1542 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1543
1544 mt792x_mutex_acquire(dev);
1545
1546 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1547 ieee80211_iterate_active_interfaces(hw,
1548 IEEE80211_IFACE_ITER_RESUME_ALL,
1549 mt7925_mcu_set_suspend_iter,
1550 &dev->mphy);
1551
1552 mt792x_mutex_release(dev);
1553
1554 return 0;
1555 }
1556
mt7925_resume(struct ieee80211_hw * hw)1557 static int mt7925_resume(struct ieee80211_hw *hw)
1558 {
1559 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1560 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1561
1562 mt792x_mutex_acquire(dev);
1563
1564 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1565 ieee80211_iterate_active_interfaces(hw,
1566 IEEE80211_IFACE_ITER_RESUME_ALL,
1567 mt7925_mcu_set_suspend_iter,
1568 &dev->mphy);
1569
1570 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1571 MT792x_WATCHDOG_TIME);
1572
1573 mt792x_mutex_release(dev);
1574
1575 return 0;
1576 }
1577
mt7925_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1578 static void mt7925_set_rekey_data(struct ieee80211_hw *hw,
1579 struct ieee80211_vif *vif,
1580 struct cfg80211_gtk_rekey_data *data)
1581 {
1582 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1583
1584 mt792x_mutex_acquire(dev);
1585 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1586 mt792x_mutex_release(dev);
1587 }
1588 #endif /* CONFIG_PM */
1589
mt7925_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1590 static void mt7925_sta_set_decap_offload(struct ieee80211_hw *hw,
1591 struct ieee80211_vif *vif,
1592 struct ieee80211_sta *sta,
1593 bool enabled)
1594 {
1595 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1596 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1597 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1598 unsigned long valid = mvif->valid_links;
1599 u8 i;
1600
1601 mt792x_mutex_acquire(dev);
1602
1603 valid = ieee80211_vif_is_mld(vif) ? mvif->valid_links : BIT(0);
1604
1605 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1606 struct mt792x_link_sta *mlink;
1607
1608 mlink = mt792x_sta_to_link(msta, i);
1609
1610 if (enabled)
1611 set_bit(MT_WCID_FLAG_HDR_TRANS, &mlink->wcid.flags);
1612 else
1613 clear_bit(MT_WCID_FLAG_HDR_TRANS, &mlink->wcid.flags);
1614
1615 mt7925_mcu_wtbl_update_hdr_trans(dev, vif, sta, i);
1616 }
1617
1618 mt792x_mutex_release(dev);
1619 }
1620
1621 #if IS_ENABLED(CONFIG_IPV6)
__mt7925_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_bss_conf * link_conf,struct inet6_dev * idev)1622 static void __mt7925_ipv6_addr_change(struct ieee80211_hw *hw,
1623 struct ieee80211_bss_conf *link_conf,
1624 struct inet6_dev *idev)
1625 {
1626 struct mt792x_bss_conf *mconf = mt792x_link_conf_to_mconf(link_conf);
1627 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1628 struct inet6_ifaddr *ifa;
1629 struct sk_buff *skb;
1630 u8 idx = 0;
1631
1632 struct {
1633 struct {
1634 u8 bss_idx;
1635 u8 pad[3];
1636 } __packed hdr;
1637 struct mt7925_arpns_tlv arpns;
1638 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1639 } req_hdr = {
1640 .hdr = {
1641 .bss_idx = mconf->mt76.idx,
1642 },
1643 .arpns = {
1644 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1645 .len = cpu_to_le16(sizeof(req_hdr) - 4),
1646 .enable = true,
1647 },
1648 };
1649
1650 read_lock_bh(&idev->lock);
1651 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1652 if (ifa->flags & IFA_F_TENTATIVE)
1653 continue;
1654 req_hdr.ns_addrs[idx] = ifa->addr;
1655 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1656 break;
1657 }
1658 read_unlock_bh(&idev->lock);
1659
1660 if (!idx)
1661 return;
1662
1663 req_hdr.arpns.ips_num = idx;
1664
1665 skb = __mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req_hdr),
1666 0, GFP_ATOMIC);
1667 if (!skb)
1668 return;
1669
1670 skb_put_data(skb, &req_hdr, sizeof(req_hdr));
1671
1672 skb_queue_tail(&dev->ipv6_ns_list, skb);
1673
1674 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1675 }
1676
mt7925_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)1677 static void mt7925_ipv6_addr_change(struct ieee80211_hw *hw,
1678 struct ieee80211_vif *vif,
1679 struct inet6_dev *idev)
1680 {
1681 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1682 unsigned long valid = ieee80211_vif_is_mld(vif) ?
1683 mvif->valid_links : BIT(0);
1684 struct ieee80211_bss_conf *bss_conf;
1685 int i;
1686
1687 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1688 bss_conf = mt792x_vif_to_bss_conf(vif, i);
1689 __mt7925_ipv6_addr_change(hw, bss_conf, idev);
1690 }
1691 }
1692
1693 #endif
1694
mt7925_set_tx_sar_pwr(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1695 int mt7925_set_tx_sar_pwr(struct ieee80211_hw *hw,
1696 const struct cfg80211_sar_specs *sar)
1697 {
1698 struct mt76_phy *mphy = hw->priv;
1699
1700 if (sar) {
1701 int err = mt76_init_sar_power(hw, sar);
1702
1703 if (err)
1704 return err;
1705 }
1706 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1707
1708 return mt7925_mcu_set_rate_txpower(mphy);
1709 }
1710
mt7925_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1711 static int mt7925_set_sar_specs(struct ieee80211_hw *hw,
1712 const struct cfg80211_sar_specs *sar)
1713 {
1714 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1715 int err;
1716
1717 mt792x_mutex_acquire(dev);
1718 err = mt7925_mcu_set_clc(dev, dev->mt76.alpha2,
1719 dev->country_ie_env);
1720 if (err < 0)
1721 goto out;
1722
1723 err = mt7925_set_tx_sar_pwr(hw, sar);
1724 out:
1725 mt792x_mutex_release(dev);
1726
1727 return err;
1728 }
1729
1730 static void
mt7925_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)1731 mt7925_channel_switch_beacon(struct ieee80211_hw *hw,
1732 struct ieee80211_vif *vif,
1733 struct cfg80211_chan_def *chandef)
1734 {
1735 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1736
1737 mt792x_mutex_acquire(dev);
1738 mt7925_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1739 mt792x_mutex_release(dev);
1740 }
1741
1742 static int
mt7925_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * params)1743 mt7925_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1744 unsigned int link_id, u16 queue,
1745 const struct ieee80211_tx_queue_params *params)
1746 {
1747 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1748 struct mt792x_bss_conf *mconf = mt792x_vif_to_link(mvif, link_id);
1749 static const u8 mq_to_aci[] = {
1750 [IEEE80211_AC_VO] = 3,
1751 [IEEE80211_AC_VI] = 2,
1752 [IEEE80211_AC_BE] = 0,
1753 [IEEE80211_AC_BK] = 1,
1754 };
1755
1756 /* firmware uses access class index */
1757 mconf->queue_params[mq_to_aci[queue]] = *params;
1758
1759 return 0;
1760 }
1761
1762 static int
mt7925_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1763 mt7925_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1764 struct ieee80211_bss_conf *link_conf)
1765 {
1766 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1767 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1768 int err;
1769
1770 mt792x_mutex_acquire(dev);
1771
1772 err = mt7925_mcu_add_bss_info(&dev->phy, mvif->bss_conf.mt76.ctx,
1773 link_conf, NULL, true);
1774 if (err)
1775 goto out;
1776
1777 err = mt7925_mcu_set_bss_pm(dev, link_conf, true);
1778 if (err)
1779 goto out;
1780
1781 err = mt7925_mcu_sta_update(dev, NULL, vif, true,
1782 MT76_STA_INFO_STATE_NONE);
1783 out:
1784 mt792x_mutex_release(dev);
1785
1786 return err;
1787 }
1788
1789 static void
mt7925_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1790 mt7925_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1791 struct ieee80211_bss_conf *link_conf)
1792 {
1793 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1794 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1795 int err;
1796
1797 mt792x_mutex_acquire(dev);
1798
1799 err = mt7925_mcu_set_bss_pm(dev, link_conf, false);
1800 if (err)
1801 goto out;
1802
1803 mt7925_mcu_add_bss_info(&dev->phy, mvif->bss_conf.mt76.ctx, link_conf,
1804 NULL, false);
1805
1806 out:
1807 mt792x_mutex_release(dev);
1808 }
1809
1810 static int
mt7925_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1811 mt7925_add_chanctx(struct ieee80211_hw *hw,
1812 struct ieee80211_chanctx_conf *ctx)
1813 {
1814 return 0;
1815 }
1816
1817 static void
mt7925_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1818 mt7925_remove_chanctx(struct ieee80211_hw *hw,
1819 struct ieee80211_chanctx_conf *ctx)
1820 {
1821 }
1822
1823 static void
mt7925_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)1824 mt7925_change_chanctx(struct ieee80211_hw *hw,
1825 struct ieee80211_chanctx_conf *ctx,
1826 u32 changed)
1827 {
1828 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv;
1829 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1830 struct mt792x_bss_conf *mconf;
1831 struct ieee80211_vif *vif;
1832 struct mt792x_vif *mvif;
1833
1834 if (!mctx->bss_conf)
1835 return;
1836
1837 mconf = mctx->bss_conf;
1838 mvif = mconf->vif;
1839 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv);
1840
1841 mt792x_mutex_acquire(phy->dev);
1842 if (vif->type == NL80211_IFTYPE_MONITOR) {
1843 mt7925_mcu_set_sniffer(mvif->phy->dev, vif, true);
1844 mt7925_mcu_config_sniffer(mvif, ctx);
1845 } else {
1846 if (ieee80211_vif_is_mld(vif)) {
1847 unsigned long valid = mvif->valid_links;
1848 u8 i;
1849
1850 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1851 mconf = mt792x_vif_to_link(mvif, i);
1852 if (mconf && mconf->mt76.ctx == ctx)
1853 break;
1854 }
1855
1856 } else {
1857 mconf = &mvif->bss_conf;
1858 }
1859
1860 if (mconf) {
1861 struct ieee80211_bss_conf *link_conf;
1862
1863 link_conf = mt792x_vif_to_bss_conf(vif, mconf->link_id);
1864 mt7925_mcu_set_chctx(mvif->phy->mt76, &mconf->mt76,
1865 link_conf, ctx);
1866 }
1867 }
1868
1869 mt792x_mutex_release(phy->dev);
1870 }
1871
mt7925_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1872 static void mt7925_mgd_prepare_tx(struct ieee80211_hw *hw,
1873 struct ieee80211_vif *vif,
1874 struct ieee80211_prep_tx_info *info)
1875 {
1876 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1877 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1878 u16 duration = info->duration ? info->duration :
1879 jiffies_to_msecs(HZ);
1880
1881 mt792x_mutex_acquire(dev);
1882 mt7925_set_roc(mvif->phy, &mvif->bss_conf,
1883 mvif->bss_conf.mt76.ctx->def.chan, duration,
1884 MT7925_ROC_REQ_JOIN);
1885 mt792x_mutex_release(dev);
1886 }
1887
mt7925_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1888 static void mt7925_mgd_complete_tx(struct ieee80211_hw *hw,
1889 struct ieee80211_vif *vif,
1890 struct ieee80211_prep_tx_info *info)
1891 {
1892 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1893
1894 mt7925_abort_roc(mvif->phy, &mvif->bss_conf);
1895 }
1896
mt7925_vif_cfg_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 changed)1897 static void mt7925_vif_cfg_changed(struct ieee80211_hw *hw,
1898 struct ieee80211_vif *vif,
1899 u64 changed)
1900 {
1901 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1902 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1903 unsigned long valid = ieee80211_vif_is_mld(vif) ?
1904 mvif->valid_links : BIT(0);
1905 struct ieee80211_bss_conf *bss_conf;
1906 int i;
1907
1908 mt792x_mutex_acquire(dev);
1909
1910 if (changed & BSS_CHANGED_ASSOC) {
1911 mt7925_mcu_sta_update(dev, NULL, vif, true,
1912 MT76_STA_INFO_STATE_ASSOC);
1913 mt7925_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
1914
1915 if (ieee80211_vif_is_mld(vif))
1916 mvif->mlo_pm_state = MT792x_MLO_LINK_ASSOC;
1917 }
1918
1919 if (changed & BSS_CHANGED_ARP_FILTER) {
1920 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1921 bss_conf = mt792x_vif_to_bss_conf(vif, i);
1922 mt7925_mcu_update_arp_filter(&dev->mt76, bss_conf);
1923 }
1924 }
1925
1926 if (changed & BSS_CHANGED_PS) {
1927 if (hweight16(mvif->valid_links) < 2) {
1928 /* legacy */
1929 bss_conf = &vif->bss_conf;
1930 mt7925_mcu_uni_bss_ps(dev, bss_conf);
1931 } else {
1932 if (mvif->mlo_pm_state == MT792x_MLO_LINK_ASSOC) {
1933 mvif->mlo_pm_state = MT792x_MLO_CHANGED_PS_PENDING;
1934 } else if (mvif->mlo_pm_state == MT792x_MLO_CHANGED_PS) {
1935 for_each_set_bit(i, &valid, IEEE80211_MLD_MAX_NUM_LINKS) {
1936 bss_conf = mt792x_vif_to_bss_conf(vif, i);
1937 mt7925_mcu_uni_bss_ps(dev, bss_conf);
1938 }
1939 }
1940 }
1941 }
1942
1943 mt792x_mutex_release(dev);
1944 }
1945
mt7925_link_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)1946 static void mt7925_link_info_changed(struct ieee80211_hw *hw,
1947 struct ieee80211_vif *vif,
1948 struct ieee80211_bss_conf *info,
1949 u64 changed)
1950 {
1951 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1952 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1953 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1954 struct mt792x_bss_conf *mconf;
1955
1956 mconf = mt792x_vif_to_link(mvif, info->link_id);
1957
1958 mt792x_mutex_acquire(dev);
1959
1960 if (changed & BSS_CHANGED_ERP_SLOT) {
1961 int slottime = info->use_short_slot ? 9 : 20;
1962
1963 if (slottime != phy->slottime) {
1964 phy->slottime = slottime;
1965 mt7925_mcu_set_timing(phy, info);
1966 }
1967 }
1968
1969 if (changed & BSS_CHANGED_MCAST_RATE)
1970 mconf->mt76.mcast_rates_idx =
1971 mt7925_get_rates_table(hw, vif, false, true);
1972
1973 if (changed & BSS_CHANGED_BASIC_RATES)
1974 mconf->mt76.basic_rates_idx =
1975 mt7925_get_rates_table(hw, vif, false, false);
1976
1977 if (changed & (BSS_CHANGED_BEACON |
1978 BSS_CHANGED_BEACON_ENABLED)) {
1979 mconf->mt76.beacon_rates_idx =
1980 mt7925_get_rates_table(hw, vif, true, false);
1981
1982 mt7925_mcu_uni_add_beacon_offload(dev, hw, vif,
1983 info->enable_beacon);
1984 }
1985
1986 /* ensure that enable txcmd_mode after bss_info */
1987 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
1988 mt7925_mcu_set_tx(dev, info);
1989
1990 if (mvif->mlo_pm_state == MT792x_MLO_CHANGED_PS_PENDING) {
1991 /* Indicate the secondary setup done */
1992 mt7925_mcu_uni_bss_bcnft(dev, info, true);
1993
1994 ieee80211_queue_delayed_work(hw, &dev->mlo_pm_work, 5 * HZ);
1995 mvif->mlo_pm_state = MT792x_MLO_CHANGED_PS;
1996 }
1997
1998 mt792x_mutex_release(dev);
1999 }
2000
2001 static int
mt7925_change_vif_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 old_links,u16 new_links,struct ieee80211_bss_conf * old[IEEE80211_MLD_MAX_NUM_LINKS])2002 mt7925_change_vif_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2003 u16 old_links, u16 new_links,
2004 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
2005 {
2006 struct mt792x_bss_conf *mconfs[IEEE80211_MLD_MAX_NUM_LINKS] = {}, *mconf;
2007 struct mt792x_link_sta *mlinks[IEEE80211_MLD_MAX_NUM_LINKS] = {}, *mlink;
2008 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
2009 unsigned long add = new_links & ~old_links;
2010 unsigned long rem = old_links & ~new_links;
2011 struct mt792x_dev *dev = mt792x_hw_dev(hw);
2012 struct mt792x_phy *phy = mt792x_hw_phy(hw);
2013 struct ieee80211_bss_conf *link_conf;
2014 unsigned int link_id;
2015 int err;
2016
2017 if (old_links == new_links)
2018 return 0;
2019
2020 mt792x_mutex_acquire(dev);
2021
2022 for_each_set_bit(link_id, &rem, IEEE80211_MLD_MAX_NUM_LINKS) {
2023 mconf = mt792x_vif_to_link(mvif, link_id);
2024 mlink = mt792x_sta_to_link(&mvif->sta, link_id);
2025
2026 if (!mconf || !mlink)
2027 continue;
2028
2029 if (mconf != &mvif->bss_conf) {
2030 mt792x_mac_link_bss_remove(dev, mconf, mlink);
2031 devm_kfree(dev->mt76.dev, mconf);
2032 devm_kfree(dev->mt76.dev, mlink);
2033 }
2034
2035 rcu_assign_pointer(mvif->link_conf[link_id], NULL);
2036 rcu_assign_pointer(mvif->sta.link[link_id], NULL);
2037 }
2038
2039 for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
2040 if (!old_links) {
2041 mvif->deflink_id = link_id;
2042 mconf = &mvif->bss_conf;
2043 mlink = &mvif->sta.deflink;
2044 } else {
2045 mconf = devm_kzalloc(dev->mt76.dev, sizeof(*mconf),
2046 GFP_KERNEL);
2047 mlink = devm_kzalloc(dev->mt76.dev, sizeof(*mlink),
2048 GFP_KERNEL);
2049 if (!mconf || !mlink)
2050 return -ENOMEM;
2051 }
2052
2053 mconfs[link_id] = mconf;
2054 mlinks[link_id] = mlink;
2055 mconf->link_id = link_id;
2056 mconf->vif = mvif;
2057 mlink->wcid.link_id = link_id;
2058 mlink->wcid.link_valid = !!vif->valid_links;
2059 mlink->wcid.def_wcid = &mvif->sta.deflink.wcid;
2060 }
2061
2062 if (hweight16(mvif->valid_links) == 0)
2063 mt792x_mac_link_bss_remove(dev, &mvif->bss_conf,
2064 &mvif->sta.deflink);
2065
2066 for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
2067 mconf = mconfs[link_id];
2068 mlink = mlinks[link_id];
2069 link_conf = mt792x_vif_to_bss_conf(vif, link_id);
2070
2071 rcu_assign_pointer(mvif->link_conf[link_id], mconf);
2072 rcu_assign_pointer(mvif->sta.link[link_id], mlink);
2073
2074 err = mt7925_mac_link_bss_add(dev, link_conf, mlink);
2075 if (err < 0)
2076 goto free;
2077
2078 if (mconf != &mvif->bss_conf) {
2079 err = mt7925_set_mlo_roc(phy, &mvif->bss_conf,
2080 vif->active_links);
2081 if (err < 0)
2082 goto free;
2083 }
2084 }
2085
2086 mvif->valid_links = new_links;
2087
2088 mt792x_mutex_release(dev);
2089
2090 return 0;
2091
2092 free:
2093 for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
2094 rcu_assign_pointer(mvif->link_conf[link_id], NULL);
2095 rcu_assign_pointer(mvif->sta.link[link_id], NULL);
2096
2097 if (mconf != &mvif->bss_conf)
2098 devm_kfree(dev->mt76.dev, mconfs[link_id]);
2099 if (mlink != &mvif->sta.deflink)
2100 devm_kfree(dev->mt76.dev, mlinks[link_id]);
2101 }
2102
2103 mt792x_mutex_release(dev);
2104
2105 return err;
2106 }
2107
2108 static int
mt7925_change_sta_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 old_links,u16 new_links)2109 mt7925_change_sta_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2110 struct ieee80211_sta *sta, u16 old_links, u16 new_links)
2111 {
2112 unsigned long add = new_links & ~old_links;
2113 unsigned long rem = old_links & ~new_links;
2114 struct mt792x_dev *dev = mt792x_hw_dev(hw);
2115 int err = 0;
2116
2117 if (old_links == new_links)
2118 return 0;
2119
2120 mt792x_mutex_acquire(dev);
2121
2122 err = mt7925_mac_sta_remove_links(dev, vif, sta, rem);
2123 if (err < 0)
2124 goto out;
2125
2126 err = mt7925_mac_sta_add_links(dev, vif, sta, add);
2127 if (err < 0)
2128 goto out;
2129
2130 out:
2131 mt792x_mutex_release(dev);
2132
2133 return err;
2134 }
2135
mt7925_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)2136 static int mt7925_assign_vif_chanctx(struct ieee80211_hw *hw,
2137 struct ieee80211_vif *vif,
2138 struct ieee80211_bss_conf *link_conf,
2139 struct ieee80211_chanctx_conf *ctx)
2140 {
2141 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv;
2142 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
2143 struct mt792x_dev *dev = mt792x_hw_dev(hw);
2144 struct ieee80211_bss_conf *pri_link_conf;
2145 struct mt792x_bss_conf *mconf;
2146
2147 mutex_lock(&dev->mt76.mutex);
2148
2149 if (ieee80211_vif_is_mld(vif)) {
2150 mconf = mt792x_vif_to_link(mvif, link_conf->link_id);
2151 pri_link_conf = mt792x_vif_to_bss_conf(vif, mvif->deflink_id);
2152
2153 if (vif->type == NL80211_IFTYPE_STATION &&
2154 mconf == &mvif->bss_conf)
2155 mt7925_mcu_add_bss_info(&dev->phy, NULL, pri_link_conf,
2156 NULL, true);
2157 } else {
2158 mconf = &mvif->bss_conf;
2159 }
2160
2161 mconf->mt76.ctx = ctx;
2162 mctx->bss_conf = mconf;
2163 mutex_unlock(&dev->mt76.mutex);
2164
2165 return 0;
2166 }
2167
mt7925_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)2168 static void mt7925_unassign_vif_chanctx(struct ieee80211_hw *hw,
2169 struct ieee80211_vif *vif,
2170 struct ieee80211_bss_conf *link_conf,
2171 struct ieee80211_chanctx_conf *ctx)
2172 {
2173 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv;
2174 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
2175 struct mt792x_dev *dev = mt792x_hw_dev(hw);
2176 struct mt792x_bss_conf *mconf;
2177
2178 mutex_lock(&dev->mt76.mutex);
2179
2180 if (ieee80211_vif_is_mld(vif)) {
2181 mconf = mt792x_vif_to_link(mvif, link_conf->link_id);
2182
2183 if (vif->type == NL80211_IFTYPE_STATION &&
2184 mconf == &mvif->bss_conf)
2185 mt7925_mcu_add_bss_info(&dev->phy, NULL, link_conf,
2186 NULL, false);
2187 } else {
2188 mconf = &mvif->bss_conf;
2189 }
2190
2191 mctx->bss_conf = NULL;
2192 mconf->mt76.ctx = NULL;
2193 mutex_unlock(&dev->mt76.mutex);
2194 }
2195
2196 const struct ieee80211_ops mt7925_ops = {
2197 .tx = mt792x_tx,
2198 .start = mt7925_start,
2199 .stop = mt792x_stop,
2200 .add_interface = mt7925_add_interface,
2201 .remove_interface = mt792x_remove_interface,
2202 .config = mt7925_config,
2203 .conf_tx = mt7925_conf_tx,
2204 .configure_filter = mt7925_configure_filter,
2205 .start_ap = mt7925_start_ap,
2206 .stop_ap = mt7925_stop_ap,
2207 .sta_state = mt76_sta_state,
2208 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
2209 .set_key = mt7925_set_key,
2210 .sta_set_decap_offload = mt7925_sta_set_decap_offload,
2211 #if IS_ENABLED(CONFIG_IPV6)
2212 .ipv6_addr_change = mt7925_ipv6_addr_change,
2213 #endif /* CONFIG_IPV6 */
2214 .ampdu_action = mt7925_ampdu_action,
2215 .set_rts_threshold = mt7925_set_rts_threshold,
2216 .wake_tx_queue = mt76_wake_tx_queue,
2217 .release_buffered_frames = mt76_release_buffered_frames,
2218 .channel_switch_beacon = mt7925_channel_switch_beacon,
2219 .get_txpower = mt76_get_txpower,
2220 .get_stats = mt792x_get_stats,
2221 .get_et_sset_count = mt792x_get_et_sset_count,
2222 .get_et_strings = mt792x_get_et_strings,
2223 .get_et_stats = mt792x_get_et_stats,
2224 .get_tsf = mt792x_get_tsf,
2225 .set_tsf = mt792x_set_tsf,
2226 .get_survey = mt76_get_survey,
2227 .get_antenna = mt76_get_antenna,
2228 .set_antenna = mt7925_set_antenna,
2229 .set_coverage_class = mt792x_set_coverage_class,
2230 .hw_scan = mt7925_hw_scan,
2231 .cancel_hw_scan = mt7925_cancel_hw_scan,
2232 .sta_statistics = mt792x_sta_statistics,
2233 .sched_scan_start = mt7925_start_sched_scan,
2234 .sched_scan_stop = mt7925_stop_sched_scan,
2235 #ifdef CONFIG_PM
2236 .suspend = mt7925_suspend,
2237 .resume = mt7925_resume,
2238 .set_wakeup = mt792x_set_wakeup,
2239 .set_rekey_data = mt7925_set_rekey_data,
2240 #endif /* CONFIG_PM */
2241 .flush = mt792x_flush,
2242 .set_sar_specs = mt7925_set_sar_specs,
2243 .remain_on_channel = mt7925_remain_on_channel,
2244 .cancel_remain_on_channel = mt7925_cancel_remain_on_channel,
2245 .add_chanctx = mt7925_add_chanctx,
2246 .remove_chanctx = mt7925_remove_chanctx,
2247 .change_chanctx = mt7925_change_chanctx,
2248 .assign_vif_chanctx = mt7925_assign_vif_chanctx,
2249 .unassign_vif_chanctx = mt7925_unassign_vif_chanctx,
2250 .mgd_prepare_tx = mt7925_mgd_prepare_tx,
2251 .mgd_complete_tx = mt7925_mgd_complete_tx,
2252 .vif_cfg_changed = mt7925_vif_cfg_changed,
2253 .link_info_changed = mt7925_link_info_changed,
2254 .change_vif_links = mt7925_change_vif_links,
2255 .change_sta_links = mt7925_change_sta_links,
2256 };
2257 EXPORT_SYMBOL_GPL(mt7925_ops);
2258
2259 MODULE_AUTHOR("Deren Wu <[email protected]>");
2260 MODULE_DESCRIPTION("MediaTek MT7925 core driver");
2261 MODULE_LICENSE("Dual BSD/GPL");
2262