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gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / wireless / intel / iwlwifi / mvm / rs-fw.c
blob15d11fb72aca49790d6061d7f9126e8b324e4f42
1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2017 Intel Deutschland GmbH
9 * Copyright(c) 2018 - 2020 Intel Corporation
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called COPYING.
22 *
23 * Contact Information:
24 * Intel Linux Wireless <linuxwifi@intel.com>
25 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *
27 * BSD LICENSE
28 *
29 * Copyright(c) 2017 Intel Deutschland GmbH
30 * Copyright(c) 2018 - 2020 Intel Corporation
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 *
37 * * Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * * Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in
41 * the documentation and/or other materials provided with the
42 * distribution.
43 * * Neither the name Intel Corporation nor the names of its
44 * contributors may be used to endorse or promote products derived
45 * from this software without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
50 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
51 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
52 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
53 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 *
59 *****************************************************************************/
60 #include "rs.h"
61 #include "fw-api.h"
62 #include "sta.h"
63 #include "iwl-op-mode.h"
64 #include "mvm.h"
65
66 static u8 rs_fw_bw_from_sta_bw(struct ieee80211_sta *sta)
67 {
68 switch (sta->bandwidth) {
69 case IEEE80211_STA_RX_BW_160:
70 return IWL_TLC_MNG_CH_WIDTH_160MHZ;
71 case IEEE80211_STA_RX_BW_80:
72 return IWL_TLC_MNG_CH_WIDTH_80MHZ;
73 case IEEE80211_STA_RX_BW_40:
74 return IWL_TLC_MNG_CH_WIDTH_40MHZ;
75 case IEEE80211_STA_RX_BW_20:
76 default:
77 return IWL_TLC_MNG_CH_WIDTH_20MHZ;
78 }
79 }
80
81 static u8 rs_fw_set_active_chains(u8 chains)
82 {
83 u8 fw_chains = 0;
84
85 if (chains & ANT_A)
86 fw_chains |= IWL_TLC_MNG_CHAIN_A_MSK;
87 if (chains & ANT_B)
88 fw_chains |= IWL_TLC_MNG_CHAIN_B_MSK;
89 if (chains & ANT_C)
90 WARN(false,
91 "tlc offload doesn't support antenna C. chains: 0x%x\n",
92 chains);
93
94 return fw_chains;
95 }
96
97 static u8 rs_fw_sgi_cw_support(struct ieee80211_sta *sta)
98 {
99 struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
100 struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
101 struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
102 u8 supp = 0;
103
104 if (he_cap->has_he)
105 return 0;
106
107 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
108 supp |= BIT(IWL_TLC_MNG_CH_WIDTH_20MHZ);
109 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
110 supp |= BIT(IWL_TLC_MNG_CH_WIDTH_40MHZ);
111 if (vht_cap->cap & IEEE80211_VHT_CAP_SHORT_GI_80)
112 supp |= BIT(IWL_TLC_MNG_CH_WIDTH_80MHZ);
113 if (vht_cap->cap & IEEE80211_VHT_CAP_SHORT_GI_160)
114 supp |= BIT(IWL_TLC_MNG_CH_WIDTH_160MHZ);
115
116 return supp;
117 }
118
119 static u16 rs_fw_get_config_flags(struct iwl_mvm *mvm,
120 struct ieee80211_sta *sta,
121 struct ieee80211_supported_band *sband)
122 {
123 struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
124 struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
125 struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
126 bool vht_ena = vht_cap->vht_supported;
127 u16 flags = 0;
128
129 if (mvm->cfg->ht_params->stbc &&
130 (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1)) {
131 if (he_cap->has_he) {
132 if (he_cap->he_cap_elem.phy_cap_info[2] &
133 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ)
134 flags |= IWL_TLC_MNG_CFG_FLAGS_STBC_MSK;
135
136 if (he_cap->he_cap_elem.phy_cap_info[7] &
137 IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ)
138 flags |= IWL_TLC_MNG_CFG_FLAGS_HE_STBC_160MHZ_MSK;
139 } else if ((ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) ||
140 (vht_ena &&
141 (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK)))
142 flags |= IWL_TLC_MNG_CFG_FLAGS_STBC_MSK;
143 }
144
145 if (mvm->cfg->ht_params->ldpc &&
146 ((ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING) ||
147 (vht_ena && (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))))
148 flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
149
150 /* consider LDPC support in case of HE */
151 if (he_cap->has_he && (he_cap->he_cap_elem.phy_cap_info[1] &
152 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))
153 flags |= IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
154
155 if (sband->iftype_data && sband->iftype_data->he_cap.has_he &&
156 !(sband->iftype_data->he_cap.he_cap_elem.phy_cap_info[1] &
157 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD))
158 flags &= ~IWL_TLC_MNG_CFG_FLAGS_LDPC_MSK;
159
160 if (he_cap->has_he &&
161 (he_cap->he_cap_elem.phy_cap_info[3] &
162 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK))
163 flags |= IWL_TLC_MNG_CFG_FLAGS_HE_DCM_NSS_1_MSK;
164
165 return flags;
166 }
167
168 static
169 int rs_fw_vht_highest_rx_mcs_index(const struct ieee80211_sta_vht_cap *vht_cap,
170 int nss)
171 {
172 u16 rx_mcs = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) &
173 (0x3 << (2 * (nss - 1)));
174 rx_mcs >>= (2 * (nss - 1));
175
176 switch (rx_mcs) {
177 case IEEE80211_VHT_MCS_SUPPORT_0_7:
178 return IWL_TLC_MNG_HT_RATE_MCS7;
179 case IEEE80211_VHT_MCS_SUPPORT_0_8:
180 return IWL_TLC_MNG_HT_RATE_MCS8;
181 case IEEE80211_VHT_MCS_SUPPORT_0_9:
182 return IWL_TLC_MNG_HT_RATE_MCS9;
183 default:
184 WARN_ON_ONCE(1);
185 break;
186 }
187
188 return 0;
189 }
190
191 static void
192 rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta,
193 const struct ieee80211_sta_vht_cap *vht_cap,
194 struct iwl_tlc_config_cmd *cmd)
195 {
196 u16 supp;
197 int i, highest_mcs;
198 u8 nss = sta->rx_nss;
199
200 /* the station support only a single receive chain */
201 if (sta->smps_mode == IEEE80211_SMPS_STATIC)
202 nss = 1;
203
204 for (i = 0; i < nss && i < IWL_TLC_NSS_MAX; i++) {
205 highest_mcs = rs_fw_vht_highest_rx_mcs_index(vht_cap, i + 1);
206 if (!highest_mcs)
207 continue;
208
209 supp = BIT(highest_mcs + 1) - 1;
210 if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
211 supp &= ~BIT(IWL_TLC_MNG_HT_RATE_MCS9);
212
213 cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160] = cpu_to_le16(supp);
214 if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
215 cmd->ht_rates[i][IWL_TLC_HT_BW_160] =
216 cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160];
217 }
218 }
219
220 static u16 rs_fw_he_ieee80211_mcs_to_rs_mcs(u16 mcs)
221 {
222 switch (mcs) {
223 case IEEE80211_HE_MCS_SUPPORT_0_7:
224 return BIT(IWL_TLC_MNG_HT_RATE_MCS7 + 1) - 1;
225 case IEEE80211_HE_MCS_SUPPORT_0_9:
226 return BIT(IWL_TLC_MNG_HT_RATE_MCS9 + 1) - 1;
227 case IEEE80211_HE_MCS_SUPPORT_0_11:
228 return BIT(IWL_TLC_MNG_HT_RATE_MCS11 + 1) - 1;
229 case IEEE80211_HE_MCS_NOT_SUPPORTED:
230 return 0;
231 }
232
233 WARN(1, "invalid HE MCS %d\n", mcs);
234 return 0;
235 }
236
237 static void
238 rs_fw_he_set_enabled_rates(const struct ieee80211_sta *sta,
239 struct ieee80211_supported_band *sband,
240 struct iwl_tlc_config_cmd *cmd)
241 {
242 const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
243 u16 mcs_160 = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
244 u16 mcs_80 = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80);
245 u16 tx_mcs_80 =
246 le16_to_cpu(sband->iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_80);
247 u16 tx_mcs_160 =
248 le16_to_cpu(sband->iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_160);
249 int i;
250 u8 nss = sta->rx_nss;
251
252 /* the station support only a single receive chain */
253 if (sta->smps_mode == IEEE80211_SMPS_STATIC)
254 nss = 1;
255
256 for (i = 0; i < nss && i < IWL_TLC_NSS_MAX; i++) {
257 u16 _mcs_160 = (mcs_160 >> (2 * i)) & 0x3;
258 u16 _mcs_80 = (mcs_80 >> (2 * i)) & 0x3;
259 u16 _tx_mcs_160 = (tx_mcs_160 >> (2 * i)) & 0x3;
260 u16 _tx_mcs_80 = (tx_mcs_80 >> (2 * i)) & 0x3;
261
262 /* If one side doesn't support - mark both as not supporting */
263 if (_mcs_80 == IEEE80211_HE_MCS_NOT_SUPPORTED ||
264 _tx_mcs_80 == IEEE80211_HE_MCS_NOT_SUPPORTED) {
265 _mcs_80 = IEEE80211_HE_MCS_NOT_SUPPORTED;
266 _tx_mcs_80 = IEEE80211_HE_MCS_NOT_SUPPORTED;
267 }
268 if (_mcs_80 > _tx_mcs_80)
269 _mcs_80 = _tx_mcs_80;
270 cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160] =
271 cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_80));
272
273 /* If one side doesn't support - mark both as not supporting */
274 if (_mcs_160 == IEEE80211_HE_MCS_NOT_SUPPORTED ||
275 _tx_mcs_160 == IEEE80211_HE_MCS_NOT_SUPPORTED) {
276 _mcs_160 = IEEE80211_HE_MCS_NOT_SUPPORTED;
277 _tx_mcs_160 = IEEE80211_HE_MCS_NOT_SUPPORTED;
278 }
279 if (_mcs_160 > _tx_mcs_160)
280 _mcs_160 = _tx_mcs_160;
281 cmd->ht_rates[i][IWL_TLC_HT_BW_160] =
282 cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_160));
283 }
284 }
285
286 static void rs_fw_set_supp_rates(struct ieee80211_sta *sta,
287 struct ieee80211_supported_band *sband,
288 struct iwl_tlc_config_cmd *cmd)
289 {
290 int i;
291 unsigned long tmp;
292 unsigned long supp; /* must be unsigned long for for_each_set_bit */
293 const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
294 const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
295 const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
296
297 /* non HT rates */
298 supp = 0;
299 tmp = sta->supp_rates[sband->band];
300 for_each_set_bit(i, &tmp, BITS_PER_LONG)
301 supp |= BIT(sband->bitrates[i].hw_value);
302
303 cmd->non_ht_rates = cpu_to_le16(supp);
304 cmd->mode = IWL_TLC_MNG_MODE_NON_HT;
305
306 /* HT/VHT rates */
307 if (he_cap->has_he) {
308 cmd->mode = IWL_TLC_MNG_MODE_HE;
309 rs_fw_he_set_enabled_rates(sta, sband, cmd);
310 } else if (vht_cap->vht_supported) {
311 cmd->mode = IWL_TLC_MNG_MODE_VHT;
312 rs_fw_vht_set_enabled_rates(sta, vht_cap, cmd);
313 } else if (ht_cap->ht_supported) {
314 cmd->mode = IWL_TLC_MNG_MODE_HT;
315 cmd->ht_rates[IWL_TLC_NSS_1][IWL_TLC_HT_BW_NONE_160] =
316 cpu_to_le16(ht_cap->mcs.rx_mask[0]);
317
318 /* the station support only a single receive chain */
319 if (sta->smps_mode == IEEE80211_SMPS_STATIC)
320 cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_HT_BW_NONE_160] =
321 0;
322 else
323 cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_HT_BW_NONE_160] =
324 cpu_to_le16(ht_cap->mcs.rx_mask[1]);
325 }
326 }
327
328 void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
329 struct iwl_rx_cmd_buffer *rxb)
330 {
331 struct iwl_rx_packet *pkt = rxb_addr(rxb);
332 struct iwl_tlc_update_notif *notif;
333 struct ieee80211_sta *sta;
334 struct iwl_mvm_sta *mvmsta;
335 struct iwl_lq_sta_rs_fw *lq_sta;
336 u32 flags;
337
338 rcu_read_lock();
339
340 notif = (void *)pkt->data;
341 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
342 if (IS_ERR_OR_NULL(sta)) {
343 IWL_ERR(mvm, "Invalid sta id (%d) in FW TLC notification\n",
344 notif->sta_id);
345 goto out;
346 }
347
348 mvmsta = iwl_mvm_sta_from_mac80211(sta);
349
350 if (!mvmsta) {
351 IWL_ERR(mvm, "Invalid sta id (%d) in FW TLC notification\n",
352 notif->sta_id);
353 goto out;
354 }
355
356 flags = le32_to_cpu(notif->flags);
357
358 lq_sta = &mvmsta->lq_sta.rs_fw;
359
360 if (flags & IWL_TLC_NOTIF_FLAG_RATE) {
361 char pretty_rate[100];
362 lq_sta->last_rate_n_flags = le32_to_cpu(notif->rate);
363 rs_pretty_print_rate(pretty_rate, sizeof(pretty_rate),
364 lq_sta->last_rate_n_flags);
365 IWL_DEBUG_RATE(mvm, "new rate: %s\n", pretty_rate);
366 }
367
368 if (flags & IWL_TLC_NOTIF_FLAG_AMSDU && !mvmsta->orig_amsdu_len) {
369 u16 size = le32_to_cpu(notif->amsdu_size);
370 int i;
371
372 /*
373 * In debug sta->max_amsdu_len < size
374 * so also check with orig_amsdu_len which holds the original
375 * data before debugfs changed the value
376 */
377 if (WARN_ON(sta->max_amsdu_len < size &&
378 mvmsta->orig_amsdu_len < size))
379 goto out;
380
381 mvmsta->amsdu_enabled = le32_to_cpu(notif->amsdu_enabled);
382 mvmsta->max_amsdu_len = size;
383 sta->max_rc_amsdu_len = mvmsta->max_amsdu_len;
384
385 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
386 if (mvmsta->amsdu_enabled & BIT(i))
387 sta->max_tid_amsdu_len[i] =
388 iwl_mvm_max_amsdu_size(mvm, sta, i);
389 else
390 /*
391 * Not so elegant, but this will effectively
392 * prevent AMSDU on this TID
393 */
394 sta->max_tid_amsdu_len[i] = 1;
395 }
396
397 IWL_DEBUG_RATE(mvm,
398 "AMSDU update. AMSDU size: %d, AMSDU selected size: %d, AMSDU TID bitmap 0x%X\n",
399 le32_to_cpu(notif->amsdu_size), size,
400 mvmsta->amsdu_enabled);
401 }
402 out:
403 rcu_read_unlock();
404 }
405
406 u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta)
407 {
408 const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
409 const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
410
411 if (vht_cap->vht_supported) {
412 switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
413 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
414 return IEEE80211_MAX_MPDU_LEN_VHT_11454;
415 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
416 return IEEE80211_MAX_MPDU_LEN_VHT_7991;
417 default:
418 return IEEE80211_MAX_MPDU_LEN_VHT_3895;
419 }
420 } else if (ht_cap->ht_supported) {
421 if (ht_cap->cap & IEEE80211_HT_CAP_MAX_AMSDU)
422 /*
423 * agg is offloaded so we need to assume that agg
424 * are enabled and max mpdu in ampdu is 4095
425 * (spec 802.11-2016 9.3.2.1)
426 */
427 return IEEE80211_MAX_MPDU_LEN_HT_BA;
428 else
429 return IEEE80211_MAX_MPDU_LEN_HT_3839;
430 }
431
432 /* in legacy mode no amsdu is enabled so return zero */
433 return 0;
434 }
435
436 void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
437 enum nl80211_band band, bool update)
438 {
439 struct ieee80211_hw *hw = mvm->hw;
440 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
441 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
442 u32 cmd_id = iwl_cmd_id(TLC_MNG_CONFIG_CMD, DATA_PATH_GROUP, 0);
443 struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
444 u16 max_amsdu_len = rs_fw_get_max_amsdu_len(sta);
445 struct iwl_tlc_config_cmd cfg_cmd = {
446 .sta_id = mvmsta->sta_id,
447 .max_ch_width = update ?
448 rs_fw_bw_from_sta_bw(sta) : RATE_MCS_CHAN_WIDTH_20,
449 .flags = cpu_to_le16(rs_fw_get_config_flags(mvm, sta, sband)),
450 .chains = rs_fw_set_active_chains(iwl_mvm_get_valid_tx_ant(mvm)),
451 .sgi_ch_width_supp = rs_fw_sgi_cw_support(sta),
452 .max_mpdu_len = cpu_to_le16(max_amsdu_len),
453 .amsdu = iwl_mvm_is_csum_supported(mvm),
454 };
455 int ret;
456
457 memset(lq_sta, 0, offsetof(typeof(*lq_sta), pers));
458
459 #ifdef CONFIG_IWLWIFI_DEBUGFS
460 iwl_mvm_reset_frame_stats(mvm);
461 #endif
462 rs_fw_set_supp_rates(sta, sband, &cfg_cmd);
463
464 /*
465 * since TLC offload works with one mode we can assume
466 * that only vht/ht is used and also set it as station max amsdu
467 */
468 sta->max_amsdu_len = max_amsdu_len;
469
470 ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, CMD_ASYNC, sizeof(cfg_cmd),
471 &cfg_cmd);
472 if (ret)
473 IWL_ERR(mvm, "Failed to send rate scale config (%d)\n", ret);
474 }
475
476 int rs_fw_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
477 bool enable)
478 {
479 /* TODO: need to introduce a new FW cmd since LQ cmd is not relevant */
480 IWL_DEBUG_RATE(mvm, "tx protection - not implemented yet.\n");
481 return 0;
482 }
483
484 void iwl_mvm_rs_add_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta)
485 {
486 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
487
488 IWL_DEBUG_RATE(mvm, "create station rate scale window\n");
489
490 lq_sta->pers.drv = mvm;
491 lq_sta->pers.sta_id = mvmsta->sta_id;
492 lq_sta->pers.chains = 0;
493 memset(lq_sta->pers.chain_signal, 0, sizeof(lq_sta->pers.chain_signal));
494 lq_sta->pers.last_rssi = S8_MIN;
495 lq_sta->last_rate_n_flags = 0;
496
497 #ifdef CONFIG_MAC80211_DEBUGFS
498 lq_sta->pers.dbg_fixed_rate = 0;
499 #endif
500 }
Linux with added FPC-III support