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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
51368bf7 | 3 | * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. |
8ca151b5 JB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
21 | * Contact Information: | |
22 | * Intel Linux Wireless <ilw@linux.intel.com> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | *****************************************************************************/ | |
26 | ||
27 | #ifndef __rs_h__ | |
28 | #define __rs_h__ | |
29 | ||
30 | #include <net/mac80211.h> | |
31 | ||
32 | #include "iwl-config.h" | |
33 | ||
34 | #include "fw-api.h" | |
35 | #include "iwl-trans.h" | |
36 | ||
37 | struct iwl_rs_rate_info { | |
d310e405 ES |
38 | u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ |
39 | u8 plcp_ht_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ | |
40 | u8 plcp_ht_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ | |
41 | u8 plcp_vht_siso; | |
42 | u8 plcp_vht_mimo2; | |
8ca151b5 JB |
43 | u8 prev_rs; /* previous rate used in rs algo */ |
44 | u8 next_rs; /* next rate used in rs algo */ | |
8ca151b5 JB |
45 | }; |
46 | ||
47 | #define IWL_RATE_60M_PLCP 3 | |
48 | ||
49 | enum { | |
50 | IWL_RATE_INVM_INDEX = IWL_RATE_COUNT, | |
51 | IWL_RATE_INVALID = IWL_RATE_COUNT, | |
52 | }; | |
53 | ||
54 | #define LINK_QUAL_MAX_RETRY_NUM 16 | |
55 | ||
56 | enum { | |
57 | IWL_RATE_6M_INDEX_TABLE = 0, | |
58 | IWL_RATE_9M_INDEX_TABLE, | |
59 | IWL_RATE_12M_INDEX_TABLE, | |
60 | IWL_RATE_18M_INDEX_TABLE, | |
61 | IWL_RATE_24M_INDEX_TABLE, | |
62 | IWL_RATE_36M_INDEX_TABLE, | |
63 | IWL_RATE_48M_INDEX_TABLE, | |
64 | IWL_RATE_54M_INDEX_TABLE, | |
65 | IWL_RATE_1M_INDEX_TABLE, | |
66 | IWL_RATE_2M_INDEX_TABLE, | |
67 | IWL_RATE_5M_INDEX_TABLE, | |
68 | IWL_RATE_11M_INDEX_TABLE, | |
69 | IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1, | |
70 | }; | |
71 | ||
72 | /* #define vs. enum to keep from defaulting to 'large integer' */ | |
73 | #define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX) | |
74 | #define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX) | |
75 | #define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX) | |
76 | #define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX) | |
77 | #define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX) | |
78 | #define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX) | |
79 | #define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX) | |
80 | #define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX) | |
81 | #define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX) | |
82 | #define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX) | |
83 | #define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX) | |
84 | #define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX) | |
85 | #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) | |
86 | ||
87 | ||
d310e405 | 88 | /* uCode API values for HT/VHT bit rates */ |
8ca151b5 | 89 | enum { |
d310e405 ES |
90 | IWL_RATE_HT_SISO_MCS_0_PLCP = 0, |
91 | IWL_RATE_HT_SISO_MCS_1_PLCP = 1, | |
92 | IWL_RATE_HT_SISO_MCS_2_PLCP = 2, | |
93 | IWL_RATE_HT_SISO_MCS_3_PLCP = 3, | |
94 | IWL_RATE_HT_SISO_MCS_4_PLCP = 4, | |
95 | IWL_RATE_HT_SISO_MCS_5_PLCP = 5, | |
96 | IWL_RATE_HT_SISO_MCS_6_PLCP = 6, | |
97 | IWL_RATE_HT_SISO_MCS_7_PLCP = 7, | |
98 | IWL_RATE_HT_MIMO2_MCS_0_PLCP = 0x8, | |
99 | IWL_RATE_HT_MIMO2_MCS_1_PLCP = 0x9, | |
100 | IWL_RATE_HT_MIMO2_MCS_2_PLCP = 0xA, | |
101 | IWL_RATE_HT_MIMO2_MCS_3_PLCP = 0xB, | |
102 | IWL_RATE_HT_MIMO2_MCS_4_PLCP = 0xC, | |
103 | IWL_RATE_HT_MIMO2_MCS_5_PLCP = 0xD, | |
104 | IWL_RATE_HT_MIMO2_MCS_6_PLCP = 0xE, | |
105 | IWL_RATE_HT_MIMO2_MCS_7_PLCP = 0xF, | |
106 | IWL_RATE_VHT_SISO_MCS_0_PLCP = 0, | |
107 | IWL_RATE_VHT_SISO_MCS_1_PLCP = 1, | |
108 | IWL_RATE_VHT_SISO_MCS_2_PLCP = 2, | |
109 | IWL_RATE_VHT_SISO_MCS_3_PLCP = 3, | |
110 | IWL_RATE_VHT_SISO_MCS_4_PLCP = 4, | |
111 | IWL_RATE_VHT_SISO_MCS_5_PLCP = 5, | |
112 | IWL_RATE_VHT_SISO_MCS_6_PLCP = 6, | |
113 | IWL_RATE_VHT_SISO_MCS_7_PLCP = 7, | |
114 | IWL_RATE_VHT_SISO_MCS_8_PLCP = 8, | |
115 | IWL_RATE_VHT_SISO_MCS_9_PLCP = 9, | |
116 | IWL_RATE_VHT_MIMO2_MCS_0_PLCP = 0x10, | |
117 | IWL_RATE_VHT_MIMO2_MCS_1_PLCP = 0x11, | |
118 | IWL_RATE_VHT_MIMO2_MCS_2_PLCP = 0x12, | |
119 | IWL_RATE_VHT_MIMO2_MCS_3_PLCP = 0x13, | |
120 | IWL_RATE_VHT_MIMO2_MCS_4_PLCP = 0x14, | |
121 | IWL_RATE_VHT_MIMO2_MCS_5_PLCP = 0x15, | |
122 | IWL_RATE_VHT_MIMO2_MCS_6_PLCP = 0x16, | |
123 | IWL_RATE_VHT_MIMO2_MCS_7_PLCP = 0x17, | |
124 | IWL_RATE_VHT_MIMO2_MCS_8_PLCP = 0x18, | |
125 | IWL_RATE_VHT_MIMO2_MCS_9_PLCP = 0x19, | |
126 | IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
127 | IWL_RATE_HT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
128 | IWL_RATE_VHT_SISO_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
129 | IWL_RATE_VHT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
130 | IWL_RATE_HT_SISO_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
131 | IWL_RATE_HT_SISO_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
132 | IWL_RATE_HT_MIMO2_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
133 | IWL_RATE_HT_MIMO2_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, | |
8ca151b5 JB |
134 | }; |
135 | ||
8ca151b5 JB |
136 | #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) |
137 | ||
138 | #define IWL_INVALID_VALUE -1 | |
139 | ||
140 | #define IWL_MIN_RSSI_VAL -100 | |
141 | #define IWL_MAX_RSSI_VAL 0 | |
142 | ||
143 | /* These values specify how many Tx frame attempts before | |
144 | * searching for a new modulation mode */ | |
145 | #define IWL_LEGACY_FAILURE_LIMIT 160 | |
146 | #define IWL_LEGACY_SUCCESS_LIMIT 480 | |
147 | #define IWL_LEGACY_TABLE_COUNT 160 | |
148 | ||
149 | #define IWL_NONE_LEGACY_FAILURE_LIMIT 400 | |
150 | #define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500 | |
151 | #define IWL_NONE_LEGACY_TABLE_COUNT 1500 | |
152 | ||
153 | /* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */ | |
154 | #define IWL_RS_GOOD_RATIO 12800 /* 100% */ | |
155 | #define IWL_RATE_SCALE_SWITCH 10880 /* 85% */ | |
156 | #define IWL_RATE_HIGH_TH 10880 /* 85% */ | |
157 | #define IWL_RATE_INCREASE_TH 6400 /* 50% */ | |
c48075d2 | 158 | #define RS_SR_FORCE_DECREASE 1920 /* 15% */ |
e53839eb | 159 | #define RS_SR_NO_DECREASE 10880 /* 85% */ |
8ca151b5 | 160 | |
2fd647f8 EP |
161 | #define TPC_SR_FORCE_INCREASE 9600 /* 75% */ |
162 | #define TPC_SR_NO_INCREASE 10880 /* 85% */ | |
163 | #define TPC_TX_POWER_STEP 3 | |
164 | #define TPC_MAX_REDUCTION 15 | |
165 | #define TPC_NO_REDUCTION 0 | |
166 | #define TPC_INVALID 0xff | |
167 | ||
8ca151b5 JB |
168 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ |
169 | #define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) | |
170 | #define LINK_QUAL_AGG_TIME_LIMIT_MIN (100) | |
171 | ||
172 | #define LINK_QUAL_AGG_DISABLE_START_DEF (3) | |
173 | #define LINK_QUAL_AGG_DISABLE_START_MAX (255) | |
174 | #define LINK_QUAL_AGG_DISABLE_START_MIN (0) | |
175 | ||
176 | #define LINK_QUAL_AGG_FRAME_LIMIT_DEF (63) | |
177 | #define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) | |
178 | #define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) | |
179 | ||
180 | #define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ | |
181 | ||
182 | /* load per tid defines for A-MPDU activation */ | |
183 | #define IWL_AGG_TPT_THREHOLD 0 | |
184 | #define IWL_AGG_LOAD_THRESHOLD 10 | |
185 | #define IWL_AGG_ALL_TID 0xff | |
186 | #define TID_QUEUE_CELL_SPACING 50 /*mS */ | |
187 | #define TID_QUEUE_MAX_SIZE 20 | |
188 | #define TID_ROUND_VALUE 5 /* mS */ | |
189 | ||
190 | #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING) | |
191 | #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y)) | |
192 | ||
193 | enum iwl_table_type { | |
194 | LQ_NONE, | |
d310e405 ES |
195 | LQ_LEGACY_G, /* legacy types */ |
196 | LQ_LEGACY_A, | |
197 | LQ_HT_SISO, /* HT types */ | |
198 | LQ_HT_MIMO2, | |
199 | LQ_VHT_SISO, /* VHT types */ | |
200 | LQ_VHT_MIMO2, | |
8ca151b5 JB |
201 | LQ_MAX, |
202 | }; | |
203 | ||
5aa33553 ES |
204 | struct rs_rate { |
205 | int index; | |
206 | enum iwl_table_type type; | |
207 | u8 ant; | |
208 | u32 bw; | |
209 | bool sgi; | |
210 | }; | |
211 | ||
212 | ||
213 | #define is_type_legacy(type) (((type) == LQ_LEGACY_G) || \ | |
214 | ((type) == LQ_LEGACY_A)) | |
215 | #define is_type_ht_siso(type) ((type) == LQ_HT_SISO) | |
216 | #define is_type_ht_mimo2(type) ((type) == LQ_HT_MIMO2) | |
217 | #define is_type_vht_siso(type) ((type) == LQ_VHT_SISO) | |
218 | #define is_type_vht_mimo2(type) ((type) == LQ_VHT_MIMO2) | |
219 | #define is_type_siso(type) (is_type_ht_siso(type) || is_type_vht_siso(type)) | |
220 | #define is_type_mimo2(type) (is_type_ht_mimo2(type) || is_type_vht_mimo2(type)) | |
221 | #define is_type_mimo(type) (is_type_mimo2(type)) | |
222 | #define is_type_ht(type) (is_type_ht_siso(type) || is_type_ht_mimo2(type)) | |
223 | #define is_type_vht(type) (is_type_vht_siso(type) || is_type_vht_mimo2(type)) | |
224 | #define is_type_a_band(type) ((type) == LQ_LEGACY_A) | |
225 | #define is_type_g_band(type) ((type) == LQ_LEGACY_G) | |
226 | ||
227 | #define is_legacy(rate) is_type_legacy((rate)->type) | |
228 | #define is_ht_siso(rate) is_type_ht_siso((rate)->type) | |
229 | #define is_ht_mimo2(rate) is_type_ht_mimo2((rate)->type) | |
230 | #define is_vht_siso(rate) is_type_vht_siso((rate)->type) | |
231 | #define is_vht_mimo2(rate) is_type_vht_mimo2((rate)->type) | |
232 | #define is_siso(rate) is_type_siso((rate)->type) | |
233 | #define is_mimo2(rate) is_type_mimo2((rate)->type) | |
234 | #define is_mimo(rate) is_type_mimo((rate)->type) | |
235 | #define is_ht(rate) is_type_ht((rate)->type) | |
236 | #define is_vht(rate) is_type_vht((rate)->type) | |
237 | #define is_a_band(rate) is_type_a_band((rate)->type) | |
238 | #define is_g_band(rate) is_type_g_band((rate)->type) | |
239 | ||
240 | #define is_ht20(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_20) | |
241 | #define is_ht40(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_40) | |
242 | #define is_ht80(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_80) | |
8ca151b5 JB |
243 | |
244 | #define IWL_MAX_MCS_DISPLAY_SIZE 12 | |
245 | ||
246 | struct iwl_rate_mcs_info { | |
247 | char mbps[IWL_MAX_MCS_DISPLAY_SIZE]; | |
248 | char mcs[IWL_MAX_MCS_DISPLAY_SIZE]; | |
249 | }; | |
250 | ||
251 | /** | |
252 | * struct iwl_rate_scale_data -- tx success history for one rate | |
253 | */ | |
254 | struct iwl_rate_scale_data { | |
255 | u64 data; /* bitmap of successful frames */ | |
256 | s32 success_counter; /* number of frames successful */ | |
257 | s32 success_ratio; /* per-cent * 128 */ | |
258 | s32 counter; /* number of frames attempted */ | |
259 | s32 average_tpt; /* success ratio * expected throughput */ | |
8ca151b5 JB |
260 | }; |
261 | ||
b3b06a32 ES |
262 | /* Possible Tx columns |
263 | * Tx Column = a combo of legacy/siso/mimo x antenna x SGI | |
264 | */ | |
265 | enum rs_column { | |
266 | RS_COLUMN_LEGACY_ANT_A = 0, | |
267 | RS_COLUMN_LEGACY_ANT_B, | |
268 | RS_COLUMN_SISO_ANT_A, | |
269 | RS_COLUMN_SISO_ANT_B, | |
270 | RS_COLUMN_SISO_ANT_A_SGI, | |
271 | RS_COLUMN_SISO_ANT_B_SGI, | |
272 | RS_COLUMN_MIMO2, | |
273 | RS_COLUMN_MIMO2_SGI, | |
274 | ||
275 | RS_COLUMN_LAST = RS_COLUMN_MIMO2_SGI, | |
757cf23b | 276 | RS_COLUMN_COUNT = RS_COLUMN_LAST + 1, |
b3b06a32 ES |
277 | RS_COLUMN_INVALID, |
278 | }; | |
279 | ||
757cf23b ES |
280 | /* Packet stats per rate */ |
281 | struct rs_rate_stats { | |
282 | u64 success; | |
283 | u64 total; | |
284 | }; | |
285 | ||
8ca151b5 JB |
286 | /** |
287 | * struct iwl_scale_tbl_info -- tx params and success history for all rates | |
288 | * | |
289 | * There are two of these in struct iwl_lq_sta, | |
290 | * one for "active", and one for "search". | |
291 | */ | |
292 | struct iwl_scale_tbl_info { | |
5aa33553 | 293 | struct rs_rate rate; |
b3b06a32 | 294 | enum rs_column column; |
a34529e8 | 295 | const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ |
8ca151b5 | 296 | struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ |
2fd647f8 EP |
297 | /* per txpower-reduction history */ |
298 | struct iwl_rate_scale_data tpc_win[TPC_MAX_REDUCTION + 1]; | |
8ca151b5 JB |
299 | }; |
300 | ||
b3b06a32 ES |
301 | enum { |
302 | RS_STATE_SEARCH_CYCLE_STARTED, | |
303 | RS_STATE_SEARCH_CYCLE_ENDED, | |
304 | RS_STATE_STAY_IN_COLUMN, | |
305 | }; | |
306 | ||
8ca151b5 JB |
307 | /** |
308 | * struct iwl_lq_sta -- driver's rate scaling private structure | |
309 | * | |
310 | * Pointer to this gets passed back and forth between driver and mac80211. | |
311 | */ | |
312 | struct iwl_lq_sta { | |
313 | u8 active_tbl; /* index of active table, range 0-1 */ | |
b3b06a32 | 314 | u8 rs_state; /* RS_STATE_* */ |
8ca151b5 JB |
315 | u8 search_better_tbl; /* 1: currently trying alternate mode */ |
316 | s32 last_tpt; | |
317 | ||
318 | /* The following determine when to search for a new mode */ | |
319 | u32 table_count_limit; | |
320 | u32 max_failure_limit; /* # failed frames before new search */ | |
321 | u32 max_success_limit; /* # successful frames before new search */ | |
322 | u32 table_count; | |
323 | u32 total_failed; /* total failed frames, any/all rates */ | |
324 | u32 total_success; /* total successful frames, any/all rates */ | |
325 | u64 flush_timer; /* time staying in mode before new search */ | |
326 | ||
b3b06a32 ES |
327 | u32 visited_columns; /* Bitmask marking which Tx columns were |
328 | * explored during a search cycle | |
329 | */ | |
87d5e415 | 330 | u64 last_tx; |
d310e405 | 331 | bool is_vht; |
8ca151b5 JB |
332 | enum ieee80211_band band; |
333 | ||
757cf23b ES |
334 | struct rs_rate_stats tx_stats[RS_COLUMN_COUNT][IWL_RATE_COUNT]; |
335 | ||
8ca151b5 | 336 | /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ |
198266a3 ES |
337 | unsigned long active_legacy_rate; |
338 | unsigned long active_siso_rate; | |
339 | unsigned long active_mimo2_rate; | |
340 | ||
341 | /* Highest rate per Tx mode */ | |
342 | u8 max_legacy_rate_idx; | |
343 | u8 max_siso_rate_idx; | |
344 | u8 max_mimo2_rate_idx; | |
345 | ||
8ca151b5 JB |
346 | s8 max_rate_idx; /* Max rate set by user */ |
347 | u8 missed_rate_counter; | |
348 | ||
349 | struct iwl_lq_cmd lq; | |
350 | struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ | |
8ca151b5 | 351 | u8 tx_agg_tid_en; |
8ca151b5 JB |
352 | |
353 | /* used to be in sta_info */ | |
354 | int last_txrate_idx; | |
355 | /* last tx rate_n_flags */ | |
356 | u32 last_rate_n_flags; | |
357 | /* packets destined for this STA are aggregated */ | |
358 | u8 is_agg; | |
2fd647f8 EP |
359 | |
360 | /* tx power reduce for this sta */ | |
361 | int tpc_reduce; | |
ae969afe EP |
362 | |
363 | /* persistent fields - initialized only once - keep last! */ | |
364 | struct { | |
365 | #ifdef CONFIG_MAC80211_DEBUGFS | |
ae969afe EP |
366 | u32 dbg_fixed_rate; |
367 | u8 dbg_fixed_txp_reduction; | |
368 | #endif | |
369 | struct iwl_mvm *drv; | |
370 | } pers; | |
36946ce6 EG |
371 | }; |
372 | ||
8ca151b5 | 373 | /* Initialize station's rate scaling information after adding station */ |
b3818394 | 374 | void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, |
b87c2179 | 375 | enum ieee80211_band band, bool init); |
8ca151b5 JB |
376 | |
377 | /** | |
378 | * iwl_rate_control_register - Register the rate control algorithm callbacks | |
379 | * | |
380 | * Since the rate control algorithm is hardware specific, there is no need | |
381 | * or reason to place it as a stand alone module. The driver can call | |
382 | * iwl_rate_control_register in order to register the rate control callbacks | |
383 | * with the mac80211 subsystem. This should be performed prior to calling | |
384 | * ieee80211_register_hw | |
385 | * | |
386 | */ | |
b3818394 | 387 | int iwl_mvm_rate_control_register(void); |
8ca151b5 JB |
388 | |
389 | /** | |
390 | * iwl_rate_control_unregister - Unregister the rate control callbacks | |
391 | * | |
392 | * This should be called after calling ieee80211_unregister_hw, but before | |
393 | * the driver is unloaded. | |
394 | */ | |
b3818394 | 395 | void iwl_mvm_rate_control_unregister(void); |
8ca151b5 | 396 | |
9ee718aa EL |
397 | struct iwl_mvm_sta; |
398 | ||
e126b5d9 JB |
399 | int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, |
400 | bool enable); | |
9ee718aa | 401 | |
8ca151b5 | 402 | #endif /* __rs__ */ |