diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rs.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.h | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h deleted file mode 100644 index 81314ad9e..000000000 --- a/drivers/net/wireless/iwlwifi/mvm/rs.h +++ /dev/null @@ -1,392 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2015 Intel Mobile Communications GmbH - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#ifndef __rs_h__ -#define __rs_h__ - -#include <net/mac80211.h> - -#include "iwl-config.h" - -#include "fw-api.h" -#include "iwl-trans.h" - -struct iwl_rs_rate_info { - u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ - u8 plcp_ht_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ - u8 plcp_ht_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ - u8 plcp_vht_siso; - u8 plcp_vht_mimo2; - u8 prev_rs; /* previous rate used in rs algo */ - u8 next_rs; /* next rate used in rs algo */ -}; - -#define IWL_RATE_60M_PLCP 3 - -enum { - IWL_RATE_INVM_INDEX = IWL_RATE_COUNT, - IWL_RATE_INVALID = IWL_RATE_COUNT, -}; - -#define LINK_QUAL_MAX_RETRY_NUM 16 - -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, -}; - -/* #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 HT/VHT bit rates */ -enum { - IWL_RATE_HT_SISO_MCS_0_PLCP = 0, - IWL_RATE_HT_SISO_MCS_1_PLCP = 1, - IWL_RATE_HT_SISO_MCS_2_PLCP = 2, - IWL_RATE_HT_SISO_MCS_3_PLCP = 3, - IWL_RATE_HT_SISO_MCS_4_PLCP = 4, - IWL_RATE_HT_SISO_MCS_5_PLCP = 5, - IWL_RATE_HT_SISO_MCS_6_PLCP = 6, - IWL_RATE_HT_SISO_MCS_7_PLCP = 7, - IWL_RATE_HT_MIMO2_MCS_0_PLCP = 0x8, - IWL_RATE_HT_MIMO2_MCS_1_PLCP = 0x9, - IWL_RATE_HT_MIMO2_MCS_2_PLCP = 0xA, - IWL_RATE_HT_MIMO2_MCS_3_PLCP = 0xB, - IWL_RATE_HT_MIMO2_MCS_4_PLCP = 0xC, - IWL_RATE_HT_MIMO2_MCS_5_PLCP = 0xD, - IWL_RATE_HT_MIMO2_MCS_6_PLCP = 0xE, - IWL_RATE_HT_MIMO2_MCS_7_PLCP = 0xF, - IWL_RATE_VHT_SISO_MCS_0_PLCP = 0, - IWL_RATE_VHT_SISO_MCS_1_PLCP = 1, - IWL_RATE_VHT_SISO_MCS_2_PLCP = 2, - IWL_RATE_VHT_SISO_MCS_3_PLCP = 3, - IWL_RATE_VHT_SISO_MCS_4_PLCP = 4, - IWL_RATE_VHT_SISO_MCS_5_PLCP = 5, - IWL_RATE_VHT_SISO_MCS_6_PLCP = 6, - IWL_RATE_VHT_SISO_MCS_7_PLCP = 7, - IWL_RATE_VHT_SISO_MCS_8_PLCP = 8, - IWL_RATE_VHT_SISO_MCS_9_PLCP = 9, - IWL_RATE_VHT_MIMO2_MCS_0_PLCP = 0x10, - IWL_RATE_VHT_MIMO2_MCS_1_PLCP = 0x11, - IWL_RATE_VHT_MIMO2_MCS_2_PLCP = 0x12, - IWL_RATE_VHT_MIMO2_MCS_3_PLCP = 0x13, - IWL_RATE_VHT_MIMO2_MCS_4_PLCP = 0x14, - IWL_RATE_VHT_MIMO2_MCS_5_PLCP = 0x15, - IWL_RATE_VHT_MIMO2_MCS_6_PLCP = 0x16, - IWL_RATE_VHT_MIMO2_MCS_7_PLCP = 0x17, - IWL_RATE_VHT_MIMO2_MCS_8_PLCP = 0x18, - IWL_RATE_VHT_MIMO2_MCS_9_PLCP = 0x19, - IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_HT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_VHT_SISO_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_VHT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_HT_SISO_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_HT_SISO_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_HT_MIMO2_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, - IWL_RATE_HT_MIMO2_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, -}; - -#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) - -#define IWL_INVALID_VALUE -1 - -#define TPC_MAX_REDUCTION 15 -#define TPC_NO_REDUCTION 0 -#define TPC_INVALID 0xff - -#define LINK_QUAL_AGG_FRAME_LIMIT_DEF (63) -#define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) -#define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) - -#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_ALL_TID 0xff - -enum iwl_table_type { - LQ_NONE, - LQ_LEGACY_G, /* legacy types */ - LQ_LEGACY_A, - LQ_HT_SISO, /* HT types */ - LQ_HT_MIMO2, - LQ_VHT_SISO, /* VHT types */ - LQ_VHT_MIMO2, - LQ_MAX, -}; - -struct rs_rate { - int index; - enum iwl_table_type type; - u8 ant; - u32 bw; - bool sgi; - bool ldpc; - bool stbc; - bool bfer; -}; - - -#define is_type_legacy(type) (((type) == LQ_LEGACY_G) || \ - ((type) == LQ_LEGACY_A)) -#define is_type_ht_siso(type) ((type) == LQ_HT_SISO) -#define is_type_ht_mimo2(type) ((type) == LQ_HT_MIMO2) -#define is_type_vht_siso(type) ((type) == LQ_VHT_SISO) -#define is_type_vht_mimo2(type) ((type) == LQ_VHT_MIMO2) -#define is_type_siso(type) (is_type_ht_siso(type) || is_type_vht_siso(type)) -#define is_type_mimo2(type) (is_type_ht_mimo2(type) || is_type_vht_mimo2(type)) -#define is_type_mimo(type) (is_type_mimo2(type)) -#define is_type_ht(type) (is_type_ht_siso(type) || is_type_ht_mimo2(type)) -#define is_type_vht(type) (is_type_vht_siso(type) || is_type_vht_mimo2(type)) -#define is_type_a_band(type) ((type) == LQ_LEGACY_A) -#define is_type_g_band(type) ((type) == LQ_LEGACY_G) - -#define is_legacy(rate) is_type_legacy((rate)->type) -#define is_ht_siso(rate) is_type_ht_siso((rate)->type) -#define is_ht_mimo2(rate) is_type_ht_mimo2((rate)->type) -#define is_vht_siso(rate) is_type_vht_siso((rate)->type) -#define is_vht_mimo2(rate) is_type_vht_mimo2((rate)->type) -#define is_siso(rate) is_type_siso((rate)->type) -#define is_mimo2(rate) is_type_mimo2((rate)->type) -#define is_mimo(rate) is_type_mimo((rate)->type) -#define is_ht(rate) is_type_ht((rate)->type) -#define is_vht(rate) is_type_vht((rate)->type) -#define is_a_band(rate) is_type_a_band((rate)->type) -#define is_g_band(rate) is_type_g_band((rate)->type) - -#define is_ht20(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_20) -#define is_ht40(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_40) -#define is_ht80(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_80) - -#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 */ -}; - -/* Possible Tx columns - * Tx Column = a combo of legacy/siso/mimo x antenna x SGI - */ -enum rs_column { - RS_COLUMN_LEGACY_ANT_A = 0, - RS_COLUMN_LEGACY_ANT_B, - RS_COLUMN_SISO_ANT_A, - RS_COLUMN_SISO_ANT_B, - RS_COLUMN_SISO_ANT_A_SGI, - RS_COLUMN_SISO_ANT_B_SGI, - RS_COLUMN_MIMO2, - RS_COLUMN_MIMO2_SGI, - - RS_COLUMN_LAST = RS_COLUMN_MIMO2_SGI, - RS_COLUMN_COUNT = RS_COLUMN_LAST + 1, - RS_COLUMN_INVALID, -}; - -enum rs_ss_force_opt { - RS_SS_FORCE_NONE = 0, - RS_SS_FORCE_STBC, - RS_SS_FORCE_BFER, - RS_SS_FORCE_SISO, -}; - -/* Packet stats per rate */ -struct rs_rate_stats { - u64 success; - u64 total; -}; - -/** - * 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 { - struct rs_rate rate; - enum rs_column column; - const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ - struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ - /* per txpower-reduction history */ - struct iwl_rate_scale_data tpc_win[TPC_MAX_REDUCTION + 1]; -}; - -enum { - RS_STATE_SEARCH_CYCLE_STARTED, - RS_STATE_SEARCH_CYCLE_ENDED, - RS_STATE_STAY_IN_COLUMN, -}; - -/** - * 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 rs_state; /* RS_STATE_* */ - 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 */ - - u32 visited_columns; /* Bitmask marking which Tx columns were - * explored during a search cycle - */ - u64 last_tx; - bool is_vht; - bool ldpc; /* LDPC Rx is supported by the STA */ - bool stbc_capable; /* Tx STBC is supported by chip and Rx by STA */ - bool bfer_capable; /* Remote supports beamformee and we BFer */ - - enum ieee80211_band band; - - /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ - unsigned long active_legacy_rate; - unsigned long active_siso_rate; - unsigned long active_mimo2_rate; - - /* Highest rate per Tx mode */ - u8 max_legacy_rate_idx; - u8 max_siso_rate_idx; - u8 max_mimo2_rate_idx; - - /* Optimal rate based on RSSI and STA caps. - * Used only to reflect link speed to userspace. - */ - struct rs_rate optimal_rate; - unsigned long optimal_rate_mask; - const struct rs_init_rate_info *optimal_rates; - int optimal_nentries; - - u8 missed_rate_counter; - - struct iwl_lq_cmd lq; - struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ - u8 tx_agg_tid_en; - - /* last tx rate_n_flags */ - u32 last_rate_n_flags; - /* packets destined for this STA are aggregated */ - u8 is_agg; - - /* tx power reduce for this sta */ - int tpc_reduce; - - /* persistent fields - initialized only once - keep last! */ - struct lq_sta_pers { -#ifdef CONFIG_MAC80211_DEBUGFS - u32 dbg_fixed_rate; - u8 dbg_fixed_txp_reduction; - - /* force STBC/BFER/SISO for testing */ - enum rs_ss_force_opt ss_force; -#endif - u8 chains; - s8 chain_signal[IEEE80211_MAX_CHAINS]; - s8 last_rssi; - struct rs_rate_stats tx_stats[RS_COLUMN_COUNT][IWL_RATE_COUNT]; - struct iwl_mvm *drv; - } pers; -}; - -/* Initialize station's rate scaling information after adding station */ -void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - enum ieee80211_band band, bool init); - -/* Notify RS about Tx status */ -void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - int tid, struct ieee80211_tx_info *info); - -/** - * 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 iwl_mvm_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 iwl_mvm_rate_control_unregister(void); - -struct iwl_mvm_sta; - -int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, - bool enable); - -#endif /* __rs__ */ |