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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 | /* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** * * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. *****************************************************************************/ #ifndef __iwl_agn_rs_h__ #define __iwl_agn_rs_h__ #include <net/mac80211.h> #include "iwl-config.h" #include "commands.h" struct iwl_rate_info { u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */ u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */ u8 prev_ieee; /* previous rate in IEEE speeds */ u8 next_ieee; /* next rate in IEEE speeds */ u8 prev_rs; /* previous rate used in rs algo */ u8 next_rs; /* next rate used in rs algo */ u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ u8 next_rs_tgg; /* next rate used in TGG rs algo */ }; /* * These serve as indexes into * struct iwl_rate_info iwl_rates[IWL_RATE_COUNT]; */ enum { IWL_RATE_1M_INDEX = 0, IWL_RATE_2M_INDEX, IWL_RATE_5M_INDEX, IWL_RATE_11M_INDEX, IWL_RATE_6M_INDEX, IWL_RATE_9M_INDEX, IWL_RATE_12M_INDEX, IWL_RATE_18M_INDEX, IWL_RATE_24M_INDEX, IWL_RATE_36M_INDEX, IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX, IWL_RATE_60M_INDEX, IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/ IWL_RATE_COUNT_LEGACY = IWL_RATE_COUNT - 1, /* Excluding 60M */ IWL_RATE_INVM_INDEX = IWL_RATE_COUNT, IWL_RATE_INVALID = IWL_RATE_COUNT, }; enum { IWL_RATE_6M_INDEX_TABLE = 0, IWL_RATE_9M_INDEX_TABLE, IWL_RATE_12M_INDEX_TABLE, IWL_RATE_18M_INDEX_TABLE, IWL_RATE_24M_INDEX_TABLE, IWL_RATE_36M_INDEX_TABLE, IWL_RATE_48M_INDEX_TABLE, IWL_RATE_54M_INDEX_TABLE, IWL_RATE_1M_INDEX_TABLE, IWL_RATE_2M_INDEX_TABLE, IWL_RATE_5M_INDEX_TABLE, IWL_RATE_11M_INDEX_TABLE, IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1, }; enum { IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX, IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX, IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX, IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX, }; /* #define vs. enum to keep from defaulting to 'large integer' */ #define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX) #define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX) #define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX) #define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX) #define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX) #define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX) #define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX) #define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX) #define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX) #define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX) #define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX) #define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX) #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) /* uCode API values for legacy bit rates, both OFDM and CCK */ enum { IWL_RATE_6M_PLCP = 13, IWL_RATE_9M_PLCP = 15, IWL_RATE_12M_PLCP = 5, IWL_RATE_18M_PLCP = 7, IWL_RATE_24M_PLCP = 9, IWL_RATE_36M_PLCP = 11, IWL_RATE_48M_PLCP = 1, IWL_RATE_54M_PLCP = 3, IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/ IWL_RATE_1M_PLCP = 10, IWL_RATE_2M_PLCP = 20, IWL_RATE_5M_PLCP = 55, IWL_RATE_11M_PLCP = 110, /*FIXME:RS:change to IWL_RATE_LEGACY_??M_PLCP */ /*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/ }; /* uCode API values for OFDM high-throughput (HT) bit rates */ enum { IWL_RATE_SISO_6M_PLCP = 0, IWL_RATE_SISO_12M_PLCP = 1, IWL_RATE_SISO_18M_PLCP = 2, IWL_RATE_SISO_24M_PLCP = 3, IWL_RATE_SISO_36M_PLCP = 4, IWL_RATE_SISO_48M_PLCP = 5, IWL_RATE_SISO_54M_PLCP = 6, IWL_RATE_SISO_60M_PLCP = 7, IWL_RATE_MIMO2_6M_PLCP = 0x8, IWL_RATE_MIMO2_12M_PLCP = 0x9, IWL_RATE_MIMO2_18M_PLCP = 0xa, IWL_RATE_MIMO2_24M_PLCP = 0xb, IWL_RATE_MIMO2_36M_PLCP = 0xc, IWL_RATE_MIMO2_48M_PLCP = 0xd, IWL_RATE_MIMO2_54M_PLCP = 0xe, IWL_RATE_MIMO2_60M_PLCP = 0xf, IWL_RATE_MIMO3_6M_PLCP = 0x10, IWL_RATE_MIMO3_12M_PLCP = 0x11, IWL_RATE_MIMO3_18M_PLCP = 0x12, IWL_RATE_MIMO3_24M_PLCP = 0x13, IWL_RATE_MIMO3_36M_PLCP = 0x14, IWL_RATE_MIMO3_48M_PLCP = 0x15, IWL_RATE_MIMO3_54M_PLCP = 0x16, IWL_RATE_MIMO3_60M_PLCP = 0x17, IWL_RATE_SISO_INVM_PLCP, IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, }; /* MAC header values for bit rates */ enum { IWL_RATE_6M_IEEE = 12, IWL_RATE_9M_IEEE = 18, IWL_RATE_12M_IEEE = 24, IWL_RATE_18M_IEEE = 36, IWL_RATE_24M_IEEE = 48, IWL_RATE_36M_IEEE = 72, IWL_RATE_48M_IEEE = 96, IWL_RATE_54M_IEEE = 108, IWL_RATE_60M_IEEE = 120, IWL_RATE_1M_IEEE = 2, IWL_RATE_2M_IEEE = 4, IWL_RATE_5M_IEEE = 11, IWL_RATE_11M_IEEE = 22, }; #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) #define IWL_INVALID_VALUE -1 #define IWL_MIN_RSSI_VAL -100 #define IWL_MAX_RSSI_VAL 0 /* These values specify how many Tx frame attempts before * searching for a new modulation mode */ #define IWL_LEGACY_FAILURE_LIMIT 160 #define IWL_LEGACY_SUCCESS_LIMIT 480 #define IWL_LEGACY_TABLE_COUNT 160 #define IWL_NONE_LEGACY_FAILURE_LIMIT 400 #define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500 #define IWL_NONE_LEGACY_TABLE_COUNT 1500 /* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */ #define IWL_RS_GOOD_RATIO 12800 /* 100% */ #define IWL_RATE_SCALE_SWITCH 10880 /* 85% */ #define IWL_RATE_HIGH_TH 10880 /* 85% */ #define IWL_RATE_INCREASE_TH 6400 /* 50% */ #define IWL_RATE_DECREASE_TH 1920 /* 15% */ /* possible actions when in legacy mode */ #define IWL_LEGACY_SWITCH_ANTENNA1 0 #define IWL_LEGACY_SWITCH_ANTENNA2 1 #define IWL_LEGACY_SWITCH_SISO 2 #define IWL_LEGACY_SWITCH_MIMO2_AB 3 #define IWL_LEGACY_SWITCH_MIMO2_AC 4 #define IWL_LEGACY_SWITCH_MIMO2_BC 5 #define IWL_LEGACY_SWITCH_MIMO3_ABC 6 /* possible actions when in siso mode */ #define IWL_SISO_SWITCH_ANTENNA1 0 #define IWL_SISO_SWITCH_ANTENNA2 1 #define IWL_SISO_SWITCH_MIMO2_AB 2 #define IWL_SISO_SWITCH_MIMO2_AC 3 #define IWL_SISO_SWITCH_MIMO2_BC 4 #define IWL_SISO_SWITCH_GI 5 #define IWL_SISO_SWITCH_MIMO3_ABC 6 /* possible actions when in mimo mode */ #define IWL_MIMO2_SWITCH_ANTENNA1 0 #define IWL_MIMO2_SWITCH_ANTENNA2 1 #define IWL_MIMO2_SWITCH_SISO_A 2 #define IWL_MIMO2_SWITCH_SISO_B 3 #define IWL_MIMO2_SWITCH_SISO_C 4 #define IWL_MIMO2_SWITCH_GI 5 #define IWL_MIMO2_SWITCH_MIMO3_ABC 6 /* possible actions when in mimo3 mode */ #define IWL_MIMO3_SWITCH_ANTENNA1 0 #define IWL_MIMO3_SWITCH_ANTENNA2 1 #define IWL_MIMO3_SWITCH_SISO_A 2 #define IWL_MIMO3_SWITCH_SISO_B 3 #define IWL_MIMO3_SWITCH_SISO_C 4 #define IWL_MIMO3_SWITCH_MIMO2_AB 5 #define IWL_MIMO3_SWITCH_MIMO2_AC 6 #define IWL_MIMO3_SWITCH_MIMO2_BC 7 #define IWL_MIMO3_SWITCH_GI 8 #define IWL_MAX_11N_MIMO3_SEARCH IWL_MIMO3_SWITCH_GI #define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_MIMO3_ABC /*FIXME:RS:add possible actions for MIMO3*/ #define IWL_ACTION_LIMIT 3 /* # possible actions */ #define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ /* load per tid defines for A-MPDU activation */ #define IWL_AGG_TPT_THREHOLD 0 #define IWL_AGG_LOAD_THRESHOLD 10 #define IWL_AGG_ALL_TID 0xff #define TID_QUEUE_CELL_SPACING 50 /*mS */ #define TID_QUEUE_MAX_SIZE 20 #define TID_ROUND_VALUE 5 /* mS */ #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING) #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y)) extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT]; enum iwl_table_type { LQ_NONE, LQ_G, /* legacy types */ LQ_A, LQ_SISO, /* high-throughput types */ LQ_MIMO2, LQ_MIMO3, LQ_MAX, }; #define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A)) #define is_siso(tbl) ((tbl) == LQ_SISO) #define is_mimo2(tbl) ((tbl) == LQ_MIMO2) #define is_mimo3(tbl) ((tbl) == LQ_MIMO3) #define is_mimo(tbl) (is_mimo2(tbl) || is_mimo3(tbl)) #define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl)) #define is_a_band(tbl) ((tbl) == LQ_A) #define is_g_and(tbl) ((tbl) == LQ_G) #define IWL_MAX_MCS_DISPLAY_SIZE 12 struct iwl_rate_mcs_info { char mbps[IWL_MAX_MCS_DISPLAY_SIZE]; char mcs[IWL_MAX_MCS_DISPLAY_SIZE]; }; /** * struct iwl_rate_scale_data -- tx success history for one rate */ struct iwl_rate_scale_data { u64 data; /* bitmap of successful frames */ s32 success_counter; /* number of frames successful */ s32 success_ratio; /* per-cent * 128 */ s32 counter; /* number of frames attempted */ s32 average_tpt; /* success ratio * expected throughput */ unsigned long stamp; }; /** * struct iwl_scale_tbl_info -- tx params and success history for all rates * * There are two of these in struct iwl_lq_sta, * one for "active", and one for "search". */ struct iwl_scale_tbl_info { enum iwl_table_type lq_type; u8 ant_type; u8 is_SGI; /* 1 = short guard interval */ u8 is_ht40; /* 1 = 40 MHz channel width */ u8 is_dup; /* 1 = duplicated data streams */ u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */ u8 max_search; /* maximun number of tables we can search */ const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ u32 current_rate; /* rate_n_flags, uCode API format */ struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ }; struct iwl_traffic_load { unsigned long time_stamp; /* age of the oldest statistics */ u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time * slice */ u32 total; /* total num of packets during the * last TID_MAX_TIME_DIFF */ u8 queue_count; /* number of queues that has * been used since the last cleanup */ u8 head; /* start of the circular buffer */ }; /** * struct iwl_lq_sta -- driver's rate scaling private structure * * Pointer to this gets passed back and forth between driver and mac80211. */ struct iwl_lq_sta { u8 active_tbl; /* index of active table, range 0-1 */ u8 enable_counter; /* indicates HT mode */ u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */ u8 search_better_tbl; /* 1: currently trying alternate mode */ s32 last_tpt; /* The following determine when to search for a new mode */ u32 table_count_limit; u32 max_failure_limit; /* # failed frames before new search */ u32 max_success_limit; /* # successful frames before new search */ u32 table_count; u32 total_failed; /* total failed frames, any/all rates */ u32 total_success; /* total successful frames, any/all rates */ u64 flush_timer; /* time staying in mode before new search */ u8 action_counter; /* # mode-switch actions tried */ u8 is_green; u8 is_dup; enum nl80211_band band; /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ u32 supp_rates; u16 active_legacy_rate; u16 active_siso_rate; u16 active_mimo2_rate; u16 active_mimo3_rate; s8 max_rate_idx; /* Max rate set by user */ u8 missed_rate_counter; struct iwl_link_quality_cmd lq; struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ struct iwl_traffic_load load[IWL_MAX_TID_COUNT]; u8 tx_agg_tid_en; #ifdef CONFIG_MAC80211_DEBUGFS u32 dbg_fixed_rate; #endif struct iwl_priv *drv; /* used to be in sta_info */ int last_txrate_idx; /* last tx rate_n_flags */ u32 last_rate_n_flags; /* packets destined for this STA are aggregated */ u8 is_agg; /* BT traffic this sta was last updated in */ u8 last_bt_traffic; }; static inline u8 first_antenna(u8 mask) { if (mask & ANT_A) return ANT_A; if (mask & ANT_B) return ANT_B; return ANT_C; } /* Initialize station's rate scaling information after adding station */ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id); /** * iwl_rate_control_register - Register the rate control algorithm callbacks * * Since the rate control algorithm is hardware specific, there is no need * or reason to place it as a stand alone module. The driver can call * iwl_rate_control_register in order to register the rate control callbacks * with the mac80211 subsystem. This should be performed prior to calling * ieee80211_register_hw * */ int iwlagn_rate_control_register(void); /** * iwl_rate_control_unregister - Unregister the rate control callbacks * * This should be called after calling ieee80211_unregister_hw, but before * the driver is unloaded. */ void iwlagn_rate_control_unregister(void); #endif /* __iwl_agn__rs__ */ |