14273a380SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2e705c121SKalle Valo /****************************************************************************** 3e705c121SKalle Valo * 4e705c121SKalle Valo * Copyright(c) 2015 Intel Mobile Communications GmbH 5ea42d1cbSGregory Greenman * Copyright(c) 2017 Intel Deutschland GmbH 6fa1a1eb2SJohannes Berg * Copyright (C) 2003 - 2014, 2018 - 2024 Intel Corporation 7e705c121SKalle Valo *****************************************************************************/ 8e705c121SKalle Valo 9e705c121SKalle Valo #ifndef __rs_h__ 10e705c121SKalle Valo #define __rs_h__ 11e705c121SKalle Valo 12e705c121SKalle Valo #include <net/mac80211.h> 13e705c121SKalle Valo 14e705c121SKalle Valo #include "iwl-config.h" 15e705c121SKalle Valo 16e705c121SKalle Valo #include "fw-api.h" 17e705c121SKalle Valo #include "iwl-trans.h" 18e705c121SKalle Valo 199f66a397SGregory Greenman #define RS_NAME "iwl-mvm-rs" 209f66a397SGregory Greenman 21e705c121SKalle Valo struct iwl_rs_rate_info { 22e705c121SKalle Valo u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ 23e705c121SKalle Valo u8 plcp_ht_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ 24e705c121SKalle Valo u8 plcp_ht_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ 25e705c121SKalle Valo u8 plcp_vht_siso; 26e705c121SKalle Valo u8 plcp_vht_mimo2; 27e705c121SKalle Valo u8 prev_rs; /* previous rate used in rs algo */ 28e705c121SKalle Valo u8 next_rs; /* next rate used in rs algo */ 29e705c121SKalle Valo }; 30e705c121SKalle Valo 31e705c121SKalle Valo #define IWL_RATE_60M_PLCP 3 32e705c121SKalle Valo 33e705c121SKalle Valo #define LINK_QUAL_MAX_RETRY_NUM 16 34e705c121SKalle Valo 35e705c121SKalle Valo enum { 36e705c121SKalle Valo IWL_RATE_6M_INDEX_TABLE = 0, 37e705c121SKalle Valo IWL_RATE_9M_INDEX_TABLE, 38e705c121SKalle Valo IWL_RATE_12M_INDEX_TABLE, 39e705c121SKalle Valo IWL_RATE_18M_INDEX_TABLE, 40e705c121SKalle Valo IWL_RATE_24M_INDEX_TABLE, 41e705c121SKalle Valo IWL_RATE_36M_INDEX_TABLE, 42e705c121SKalle Valo IWL_RATE_48M_INDEX_TABLE, 43e705c121SKalle Valo IWL_RATE_54M_INDEX_TABLE, 44e705c121SKalle Valo IWL_RATE_1M_INDEX_TABLE, 45e705c121SKalle Valo IWL_RATE_2M_INDEX_TABLE, 46e705c121SKalle Valo IWL_RATE_5M_INDEX_TABLE, 47e705c121SKalle Valo IWL_RATE_11M_INDEX_TABLE, 48e705c121SKalle Valo IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1, 49e705c121SKalle Valo }; 50e705c121SKalle Valo 51e705c121SKalle Valo /* #define vs. enum to keep from defaulting to 'large integer' */ 52e705c121SKalle Valo #define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX) 53e705c121SKalle Valo #define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX) 54e705c121SKalle Valo #define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX) 55e705c121SKalle Valo #define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX) 56e705c121SKalle Valo #define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX) 57e705c121SKalle Valo #define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX) 58e705c121SKalle Valo #define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX) 59e705c121SKalle Valo #define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX) 60e705c121SKalle Valo #define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX) 61e705c121SKalle Valo #define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX) 62e705c121SKalle Valo #define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX) 63e705c121SKalle Valo #define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX) 64e705c121SKalle Valo #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) 65e705c121SKalle Valo 66e705c121SKalle Valo 67e705c121SKalle Valo /* uCode API values for HT/VHT bit rates */ 68e705c121SKalle Valo enum { 69e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_0_PLCP = 0, 70e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_1_PLCP = 1, 71e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_2_PLCP = 2, 72e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_3_PLCP = 3, 73e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_4_PLCP = 4, 74e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_5_PLCP = 5, 75e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_6_PLCP = 6, 76e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_7_PLCP = 7, 77e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_0_PLCP = 0x8, 78e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_1_PLCP = 0x9, 79e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_2_PLCP = 0xA, 80e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_3_PLCP = 0xB, 81e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_4_PLCP = 0xC, 82e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_5_PLCP = 0xD, 83e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_6_PLCP = 0xE, 84e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_7_PLCP = 0xF, 85e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_0_PLCP = 0, 86e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_1_PLCP = 1, 87e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_2_PLCP = 2, 88e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_3_PLCP = 3, 89e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_4_PLCP = 4, 90e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_5_PLCP = 5, 91e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_6_PLCP = 6, 92e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_7_PLCP = 7, 93e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_8_PLCP = 8, 94e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_9_PLCP = 9, 95e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_0_PLCP = 0x10, 96e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_1_PLCP = 0x11, 97e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_2_PLCP = 0x12, 98e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_3_PLCP = 0x13, 99e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_4_PLCP = 0x14, 100e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_5_PLCP = 0x15, 101e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_6_PLCP = 0x16, 102e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_7_PLCP = 0x17, 103e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_8_PLCP = 0x18, 104e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_9_PLCP = 0x19, 105e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_INV_PLCP, 106e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 107e705c121SKalle Valo IWL_RATE_VHT_SISO_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 108e705c121SKalle Valo IWL_RATE_VHT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 109e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 110e705c121SKalle Valo IWL_RATE_HT_SISO_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 111e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 112e705c121SKalle Valo IWL_RATE_HT_MIMO2_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, 113e705c121SKalle Valo }; 114e705c121SKalle Valo 115e705c121SKalle Valo #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) 116e705c121SKalle Valo 117e705c121SKalle Valo #define IWL_INVALID_VALUE -1 118e705c121SKalle Valo 119e705c121SKalle Valo #define TPC_MAX_REDUCTION 15 120e705c121SKalle Valo #define TPC_NO_REDUCTION 0 121e705c121SKalle Valo #define TPC_INVALID 0xff 122e705c121SKalle Valo 123e705c121SKalle Valo #define LINK_QUAL_AGG_FRAME_LIMIT_DEF (63) 124e705c121SKalle Valo #define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) 1254a7aace2SJohannes Berg #define LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF (64) 1264a7aace2SJohannes Berg #define LINK_QUAL_AGG_FRAME_LIMIT_GEN2_MAX (64) 127e705c121SKalle Valo #define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) 128e705c121SKalle Valo 129e705c121SKalle Valo #define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */ 130e705c121SKalle Valo 131e705c121SKalle Valo /* load per tid defines for A-MPDU activation */ 132e705c121SKalle Valo #define IWL_AGG_TPT_THREHOLD 0 133e705c121SKalle Valo #define IWL_AGG_ALL_TID 0xff 134e705c121SKalle Valo 135e705c121SKalle Valo enum iwl_table_type { 136e705c121SKalle Valo LQ_NONE, 137e705c121SKalle Valo LQ_LEGACY_G, /* legacy types */ 138e705c121SKalle Valo LQ_LEGACY_A, 139e705c121SKalle Valo LQ_HT_SISO, /* HT types */ 140e705c121SKalle Valo LQ_HT_MIMO2, 141e705c121SKalle Valo LQ_VHT_SISO, /* VHT types */ 142e705c121SKalle Valo LQ_VHT_MIMO2, 143514c3069SLuca Coelho LQ_HE_SISO, /* HE types */ 144514c3069SLuca Coelho LQ_HE_MIMO2, 145e705c121SKalle Valo LQ_MAX, 146e705c121SKalle Valo }; 147e705c121SKalle Valo 148e705c121SKalle Valo struct rs_rate { 149e705c121SKalle Valo int index; 150e705c121SKalle Valo enum iwl_table_type type; 151e705c121SKalle Valo u8 ant; 152e705c121SKalle Valo u32 bw; 153e705c121SKalle Valo bool sgi; 154e705c121SKalle Valo bool ldpc; 155e705c121SKalle Valo bool stbc; 156e705c121SKalle Valo bool bfer; 157e705c121SKalle Valo }; 158e705c121SKalle Valo 159e705c121SKalle Valo 160e705c121SKalle Valo #define is_type_legacy(type) (((type) == LQ_LEGACY_G) || \ 161e705c121SKalle Valo ((type) == LQ_LEGACY_A)) 162e705c121SKalle Valo #define is_type_ht_siso(type) ((type) == LQ_HT_SISO) 163e705c121SKalle Valo #define is_type_ht_mimo2(type) ((type) == LQ_HT_MIMO2) 164e705c121SKalle Valo #define is_type_vht_siso(type) ((type) == LQ_VHT_SISO) 165e705c121SKalle Valo #define is_type_vht_mimo2(type) ((type) == LQ_VHT_MIMO2) 166514c3069SLuca Coelho #define is_type_he_siso(type) ((type) == LQ_HE_SISO) 167514c3069SLuca Coelho #define is_type_he_mimo2(type) ((type) == LQ_HE_MIMO2) 168514c3069SLuca Coelho #define is_type_siso(type) (is_type_ht_siso(type) || is_type_vht_siso(type) || \ 169514c3069SLuca Coelho is_type_he_siso(type)) 170514c3069SLuca Coelho #define is_type_mimo2(type) (is_type_ht_mimo2(type) || \ 171514c3069SLuca Coelho is_type_vht_mimo2(type) || is_type_he_mimo2(type)) 172e705c121SKalle Valo #define is_type_mimo(type) (is_type_mimo2(type)) 173e705c121SKalle Valo #define is_type_ht(type) (is_type_ht_siso(type) || is_type_ht_mimo2(type)) 174e705c121SKalle Valo #define is_type_vht(type) (is_type_vht_siso(type) || is_type_vht_mimo2(type)) 175514c3069SLuca Coelho #define is_type_he(type) (is_type_he_siso(type) || is_type_he_mimo2(type)) 176e705c121SKalle Valo #define is_type_a_band(type) ((type) == LQ_LEGACY_A) 177e705c121SKalle Valo #define is_type_g_band(type) ((type) == LQ_LEGACY_G) 178e705c121SKalle Valo 179e705c121SKalle Valo #define is_legacy(rate) is_type_legacy((rate)->type) 180e705c121SKalle Valo #define is_ht_siso(rate) is_type_ht_siso((rate)->type) 181e705c121SKalle Valo #define is_ht_mimo2(rate) is_type_ht_mimo2((rate)->type) 182e705c121SKalle Valo #define is_vht_siso(rate) is_type_vht_siso((rate)->type) 183e705c121SKalle Valo #define is_vht_mimo2(rate) is_type_vht_mimo2((rate)->type) 184e705c121SKalle Valo #define is_siso(rate) is_type_siso((rate)->type) 185e705c121SKalle Valo #define is_mimo2(rate) is_type_mimo2((rate)->type) 186e705c121SKalle Valo #define is_mimo(rate) is_type_mimo((rate)->type) 187e705c121SKalle Valo #define is_ht(rate) is_type_ht((rate)->type) 188e705c121SKalle Valo #define is_vht(rate) is_type_vht((rate)->type) 189514c3069SLuca Coelho #define is_he(rate) is_type_he((rate)->type) 190e705c121SKalle Valo #define is_a_band(rate) is_type_a_band((rate)->type) 191e705c121SKalle Valo #define is_g_band(rate) is_type_g_band((rate)->type) 192e705c121SKalle Valo 193e705c121SKalle Valo #define is_ht20(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_20) 194e705c121SKalle Valo #define is_ht40(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_40) 195e705c121SKalle Valo #define is_ht80(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_80) 196855f492fSGregory Greenman #define is_ht160(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_160) 197e705c121SKalle Valo 198e705c121SKalle Valo /** 199ecaf71deSGregory Greenman * struct iwl_lq_sta_rs_fw - rate and related statistics for RS in FW 200ecaf71deSGregory Greenman * @last_rate_n_flags: last rate reported by FW 201*a6db5c70SJohannes Berg * @pers: persistent fields 202e110bf0cSJohannes Berg * @pers.sta_id: the id of the station 203*a6db5c70SJohannes Berg * @pers.chains: bitmask of chains reported in %chain_signal 204*a6db5c70SJohannes Berg * @pers.chain_signal: per chain signal strength 205*a6db5c70SJohannes Berg * @pers.last_rssi: last rssi reported 206*a6db5c70SJohannes Berg * @pers.drv: pointer back to the driver data 207ecaf71deSGregory Greenman */ 208ecaf71deSGregory Greenman struct iwl_lq_sta_rs_fw { 209ecaf71deSGregory Greenman /* last tx rate_n_flags */ 210ecaf71deSGregory Greenman u32 last_rate_n_flags; 211ecaf71deSGregory Greenman 212ecaf71deSGregory Greenman /* persistent fields - initialized only once - keep last! */ 213ecaf71deSGregory Greenman struct lq_sta_pers_rs_fw { 214ecaf71deSGregory Greenman u32 sta_id; 215ecaf71deSGregory Greenman #ifdef CONFIG_MAC80211_DEBUGFS 216e110bf0cSJohannes Berg /** 217*a6db5c70SJohannes Berg * @pers.dbg_fixed_rate: for debug, use fixed rate if not 0 218e110bf0cSJohannes Berg */ 219ecaf71deSGregory Greenman u32 dbg_fixed_rate; 220e110bf0cSJohannes Berg /** 221*a6db5c70SJohannes Berg * @pers.dbg_agg_frame_count_lim: for debug, max number of 222e110bf0cSJohannes Berg * frames in A-MPDU 223e110bf0cSJohannes Berg */ 224ecaf71deSGregory Greenman u16 dbg_agg_frame_count_lim; 225ecaf71deSGregory Greenman #endif 226ecaf71deSGregory Greenman u8 chains; 227ecaf71deSGregory Greenman s8 chain_signal[IEEE80211_MAX_CHAINS]; 228ecaf71deSGregory Greenman s8 last_rssi; 229ecaf71deSGregory Greenman struct iwl_mvm *drv; 230ecaf71deSGregory Greenman } pers; 231ecaf71deSGregory Greenman }; 232ecaf71deSGregory Greenman 233e110bf0cSJohannes Berg /* 234e705c121SKalle Valo * struct iwl_rate_scale_data -- tx success history for one rate 235e705c121SKalle Valo */ 236e705c121SKalle Valo struct iwl_rate_scale_data { 237e705c121SKalle Valo u64 data; /* bitmap of successful frames */ 238e705c121SKalle Valo s32 success_counter; /* number of frames successful */ 239e705c121SKalle Valo s32 success_ratio; /* per-cent * 128 */ 240e705c121SKalle Valo s32 counter; /* number of frames attempted */ 241e705c121SKalle Valo s32 average_tpt; /* success ratio * expected throughput */ 242e705c121SKalle Valo }; 243e705c121SKalle Valo 244e705c121SKalle Valo /* Possible Tx columns 245e705c121SKalle Valo * Tx Column = a combo of legacy/siso/mimo x antenna x SGI 246e705c121SKalle Valo */ 247e705c121SKalle Valo enum rs_column { 248e705c121SKalle Valo RS_COLUMN_LEGACY_ANT_A = 0, 249e705c121SKalle Valo RS_COLUMN_LEGACY_ANT_B, 250e705c121SKalle Valo RS_COLUMN_SISO_ANT_A, 251e705c121SKalle Valo RS_COLUMN_SISO_ANT_B, 252e705c121SKalle Valo RS_COLUMN_SISO_ANT_A_SGI, 253e705c121SKalle Valo RS_COLUMN_SISO_ANT_B_SGI, 254e705c121SKalle Valo RS_COLUMN_MIMO2, 255e705c121SKalle Valo RS_COLUMN_MIMO2_SGI, 256e705c121SKalle Valo 257e705c121SKalle Valo RS_COLUMN_LAST = RS_COLUMN_MIMO2_SGI, 258e705c121SKalle Valo RS_COLUMN_COUNT = RS_COLUMN_LAST + 1, 259e705c121SKalle Valo RS_COLUMN_INVALID, 260e705c121SKalle Valo }; 261e705c121SKalle Valo 262e705c121SKalle Valo enum rs_ss_force_opt { 263e705c121SKalle Valo RS_SS_FORCE_NONE = 0, 264e705c121SKalle Valo RS_SS_FORCE_STBC, 265e705c121SKalle Valo RS_SS_FORCE_BFER, 266e705c121SKalle Valo RS_SS_FORCE_SISO, 267e705c121SKalle Valo }; 268e705c121SKalle Valo 269e705c121SKalle Valo /* Packet stats per rate */ 270e705c121SKalle Valo struct rs_rate_stats { 271e705c121SKalle Valo u64 success; 272e705c121SKalle Valo u64 total; 273e705c121SKalle Valo }; 274e705c121SKalle Valo 275e110bf0cSJohannes Berg /* 276e705c121SKalle Valo * struct iwl_scale_tbl_info -- tx params and success history for all rates 277e705c121SKalle Valo * 278e705c121SKalle Valo * There are two of these in struct iwl_lq_sta, 279e705c121SKalle Valo * one for "active", and one for "search". 280e705c121SKalle Valo */ 281e705c121SKalle Valo struct iwl_scale_tbl_info { 282e705c121SKalle Valo struct rs_rate rate; 283e705c121SKalle Valo enum rs_column column; 284e705c121SKalle Valo const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ 285e705c121SKalle Valo struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ 286e705c121SKalle Valo /* per txpower-reduction history */ 287e705c121SKalle Valo struct iwl_rate_scale_data tpc_win[TPC_MAX_REDUCTION + 1]; 288e705c121SKalle Valo }; 289e705c121SKalle Valo 290e705c121SKalle Valo enum { 291e705c121SKalle Valo RS_STATE_SEARCH_CYCLE_STARTED, 292e705c121SKalle Valo RS_STATE_SEARCH_CYCLE_ENDED, 293e705c121SKalle Valo RS_STATE_STAY_IN_COLUMN, 294e705c121SKalle Valo }; 295e705c121SKalle Valo 296e110bf0cSJohannes Berg /* 297e705c121SKalle Valo * struct iwl_lq_sta -- driver's rate scaling private structure 298e705c121SKalle Valo * 299e705c121SKalle Valo * Pointer to this gets passed back and forth between driver and mac80211. 300e705c121SKalle Valo */ 301e705c121SKalle Valo struct iwl_lq_sta { 302e705c121SKalle Valo u8 active_tbl; /* index of active table, range 0-1 */ 303e705c121SKalle Valo u8 rs_state; /* RS_STATE_* */ 304e705c121SKalle Valo u8 search_better_tbl; /* 1: currently trying alternate mode */ 305e705c121SKalle Valo s32 last_tpt; 306e705c121SKalle Valo 307e705c121SKalle Valo /* The following determine when to search for a new mode */ 308e705c121SKalle Valo u32 table_count_limit; 309e705c121SKalle Valo u32 max_failure_limit; /* # failed frames before new search */ 310e705c121SKalle Valo u32 max_success_limit; /* # successful frames before new search */ 311e705c121SKalle Valo u32 table_count; 312e705c121SKalle Valo u32 total_failed; /* total failed frames, any/all rates */ 313e705c121SKalle Valo u32 total_success; /* total successful frames, any/all rates */ 314e705c121SKalle Valo u64 flush_timer; /* time staying in mode before new search */ 315e705c121SKalle Valo 316e705c121SKalle Valo u32 visited_columns; /* Bitmask marking which Tx columns were 317e705c121SKalle Valo * explored during a search cycle 318e705c121SKalle Valo */ 319e705c121SKalle Valo u64 last_tx; 320e705c121SKalle Valo bool is_vht; 321e705c121SKalle Valo bool ldpc; /* LDPC Rx is supported by the STA */ 322e705c121SKalle Valo bool stbc_capable; /* Tx STBC is supported by chip and Rx by STA */ 323e705c121SKalle Valo bool bfer_capable; /* Remote supports beamformee and we BFer */ 324e705c121SKalle Valo 32557fbcce3SJohannes Berg enum nl80211_band band; 326e705c121SKalle Valo 327e705c121SKalle Valo /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ 328e705c121SKalle Valo unsigned long active_legacy_rate; 329e705c121SKalle Valo unsigned long active_siso_rate; 330e705c121SKalle Valo unsigned long active_mimo2_rate; 331e705c121SKalle Valo 332e705c121SKalle Valo /* Highest rate per Tx mode */ 333e705c121SKalle Valo u8 max_legacy_rate_idx; 334e705c121SKalle Valo u8 max_siso_rate_idx; 335e705c121SKalle Valo u8 max_mimo2_rate_idx; 336e705c121SKalle Valo 337e705c121SKalle Valo /* Optimal rate based on RSSI and STA caps. 338e705c121SKalle Valo * Used only to reflect link speed to userspace. 339e705c121SKalle Valo */ 340e705c121SKalle Valo struct rs_rate optimal_rate; 341e705c121SKalle Valo unsigned long optimal_rate_mask; 342e705c121SKalle Valo const struct rs_init_rate_info *optimal_rates; 343e705c121SKalle Valo int optimal_nentries; 344e705c121SKalle Valo 345e705c121SKalle Valo u8 missed_rate_counter; 346e705c121SKalle Valo 347e705c121SKalle Valo struct iwl_lq_cmd lq; 348e705c121SKalle Valo struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ 349e705c121SKalle Valo u8 tx_agg_tid_en; 350e705c121SKalle Valo 351e705c121SKalle Valo /* last tx rate_n_flags */ 352e705c121SKalle Valo u32 last_rate_n_flags; 35359c2d94bSGregory Greenman 354e705c121SKalle Valo /* packets destined for this STA are aggregated */ 355e705c121SKalle Valo u8 is_agg; 356e705c121SKalle Valo 357e705c121SKalle Valo /* tx power reduce for this sta */ 358e705c121SKalle Valo int tpc_reduce; 359e705c121SKalle Valo 360e705c121SKalle Valo /* persistent fields - initialized only once - keep last! */ 361e705c121SKalle Valo struct lq_sta_pers { 362e705c121SKalle Valo #ifdef CONFIG_MAC80211_DEBUGFS 363e705c121SKalle Valo u32 dbg_fixed_rate; 364e705c121SKalle Valo u8 dbg_fixed_txp_reduction; 365e705c121SKalle Valo 366e705c121SKalle Valo /* force STBC/BFER/SISO for testing */ 367e705c121SKalle Valo enum rs_ss_force_opt ss_force; 368e705c121SKalle Valo #endif 369e705c121SKalle Valo u8 chains; 370e705c121SKalle Valo s8 chain_signal[IEEE80211_MAX_CHAINS]; 371e705c121SKalle Valo s8 last_rssi; 37259c2d94bSGregory Greenman u16 max_agg_bufsize; 373e705c121SKalle Valo struct rs_rate_stats tx_stats[RS_COLUMN_COUNT][IWL_RATE_COUNT]; 374e705c121SKalle Valo struct iwl_mvm *drv; 375f5d88fa3SGregory Greenman spinlock_t lock; /* for races in reinit/update table */ 376e705c121SKalle Valo } pers; 377e705c121SKalle Valo }; 378e705c121SKalle Valo 379ea42d1cbSGregory Greenman /* ieee80211_tx_info's status_driver_data[0] is packed with lq color and txp 380ea42d1cbSGregory Greenman * Note, it's iwlmvm <-> mac80211 interface. 381ea42d1cbSGregory Greenman * bits 0-7: reduced tx power 382ea42d1cbSGregory Greenman * bits 8-10: LQ command's color 383ea42d1cbSGregory Greenman */ 384ea42d1cbSGregory Greenman #define RS_DRV_DATA_TXP_MSK 0xff 385ea42d1cbSGregory Greenman #define RS_DRV_DATA_LQ_COLOR_POS 8 386ea42d1cbSGregory Greenman #define RS_DRV_DATA_LQ_COLOR_MSK (7 << RS_DRV_DATA_LQ_COLOR_POS) 387ea42d1cbSGregory Greenman #define RS_DRV_DATA_LQ_COLOR_GET(_f) (((_f) & RS_DRV_DATA_LQ_COLOR_MSK) >>\ 388ea42d1cbSGregory Greenman RS_DRV_DATA_LQ_COLOR_POS) 389ea42d1cbSGregory Greenman #define RS_DRV_DATA_PACK(_c, _p) ((void *)(uintptr_t)\ 390ea42d1cbSGregory Greenman (((uintptr_t)_p) |\ 391ea42d1cbSGregory Greenman ((_c) << RS_DRV_DATA_LQ_COLOR_POS))) 392ea42d1cbSGregory Greenman 393e705c121SKalle Valo /* Initialize station's rate scaling information after adding station */ 394c45217bdSJohannes Berg void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, 395c45217bdSJohannes Berg struct ieee80211_vif *vif, 396c45217bdSJohannes Berg struct ieee80211_sta *sta, 397f53be9c4SGregory Greenman struct ieee80211_bss_conf *link_conf, 398f53be9c4SGregory Greenman struct ieee80211_link_sta *link_sta, 39915d41834SJohannes Berg enum nl80211_band band); 400e705c121SKalle Valo 401e705c121SKalle Valo /* Notify RS about Tx status */ 402e705c121SKalle Valo void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 403ff7a68d0SMatti Gottlieb int tid, struct ieee80211_tx_info *info, bool ndp); 404e705c121SKalle Valo 405e705c121SKalle Valo /** 406fa1a1eb2SJohannes Berg * iwl_mvm_rate_control_register - Register the rate control algorithm callbacks 407e705c121SKalle Valo * 408e705c121SKalle Valo * Since the rate control algorithm is hardware specific, there is no need 409e705c121SKalle Valo * or reason to place it as a stand alone module. The driver can call 410e705c121SKalle Valo * iwl_rate_control_register in order to register the rate control callbacks 411e705c121SKalle Valo * with the mac80211 subsystem. This should be performed prior to calling 412e705c121SKalle Valo * ieee80211_register_hw 413e705c121SKalle Valo * 414e705c121SKalle Valo */ 415e705c121SKalle Valo int iwl_mvm_rate_control_register(void); 416e705c121SKalle Valo 417e705c121SKalle Valo /** 418fa1a1eb2SJohannes Berg * iwl_mvm_rate_control_unregister - Unregister the rate control callbacks 419e705c121SKalle Valo * 420e705c121SKalle Valo * This should be called after calling ieee80211_unregister_hw, but before 421e705c121SKalle Valo * the driver is unloaded. 422e705c121SKalle Valo */ 423e705c121SKalle Valo void iwl_mvm_rate_control_unregister(void); 424e705c121SKalle Valo 425e705c121SKalle Valo struct iwl_mvm_sta; 426e705c121SKalle Valo 427e705c121SKalle Valo int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 428e705c121SKalle Valo bool enable); 4299f66a397SGregory Greenman 4309f66a397SGregory Greenman #ifdef CONFIG_IWLWIFI_DEBUGFS 4319f66a397SGregory Greenman void iwl_mvm_reset_frame_stats(struct iwl_mvm *mvm); 4329f66a397SGregory Greenman #endif 4339f66a397SGregory Greenman 4349371ac0dSJohannes Berg struct iwl_mvm_link_sta; 4359371ac0dSJohannes Berg 4369f66a397SGregory Greenman void iwl_mvm_rs_add_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta); 4379371ac0dSJohannes Berg void iwl_mvm_rs_add_sta_link(struct iwl_mvm *mvm, 4389371ac0dSJohannes Berg struct iwl_mvm_link_sta *link_sta); 4399371ac0dSJohannes Berg 44015d41834SJohannes Berg void iwl_mvm_rs_fw_rate_init(struct iwl_mvm *mvm, 441c45217bdSJohannes Berg struct ieee80211_vif *vif, 442c45217bdSJohannes Berg struct ieee80211_sta *sta, 443f53be9c4SGregory Greenman struct ieee80211_bss_conf *link_conf, 444f53be9c4SGregory Greenman struct ieee80211_link_sta *link_sta, 44515d41834SJohannes Berg enum nl80211_band band); 446110b32f0SGregory Greenman int rs_fw_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 447110b32f0SGregory Greenman bool enable); 44884226ca1SGregory Greenman void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, 44984226ca1SGregory Greenman struct iwl_rx_cmd_buffer *rxb); 450686d5c57SMordechay Goodstein 451f53be9c4SGregory Greenman u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta, 452f53be9c4SGregory Greenman struct ieee80211_bss_conf *link_conf, 453f53be9c4SGregory Greenman struct ieee80211_link_sta *link_sta); 454e705c121SKalle Valo #endif /* __rs__ */ 455