diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mvm.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.c | 518 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.h | 117 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/tx.c | 35 |
5 files changed, 431 insertions, 246 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h index ada130524ef8..538f1c7a5966 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h @@ -68,6 +68,7 @@ /* * These serve as indexes into * struct iwl_rate_info fw_rate_idx_to_plcp[IWL_RATE_COUNT]; + * TODO: avoid overlap between legacy and HT rates */ enum { IWL_RATE_1M_INDEX = 0, @@ -121,6 +122,7 @@ enum { IWL_RATE_2M_PLCP = 20, IWL_RATE_5M_PLCP = 55, IWL_RATE_11M_PLCP = 110, + IWL_RATE_INVM_PLCP = -1, }; /* @@ -177,6 +179,8 @@ enum { * which is the duplicate 20 MHz MCS (bit 5 set, all others zero.) */ #define RATE_HT_MCS_RATE_CODE_MSK 0x7 +#define RATE_HT_MCS_NSS_POS 3 +#define RATE_HT_MCS_NSS_MSK (3 << RATE_HT_MCS_NSS_POS) /* Bit 10: (1) Use Green Field preamble */ #define RATE_HT_MCS_GF_POS 10 diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index dc18668b4f78..2d65fe2474e9 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -586,6 +586,9 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm); /* Utils */ int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); +void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags, + enum ieee80211_band band, + struct ieee80211_tx_rate *r); u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx); void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm); void iwl_mvm_dump_sram(struct iwl_mvm *mvm); diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 8e2bd7a3ff3f..9dfb06515521 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -82,13 +82,24 @@ static const u8 ant_toggle_lookup[] = { [ANT_ABC] = ANT_ABC, }; -#define IWL_DECLARE_RATE_INFO(r, s, rp, rn) \ - [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ - IWL_RATE_SISO_##s##M_PLCP, \ - IWL_RATE_MIMO2_##s##M_PLCP,\ - IWL_RATE_##rp##M_INDEX, \ +#define IWL_DECLARE_RATE_INFO(r, s, rp, rn) \ + [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ + IWL_RATE_HT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_HT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_VHT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP,\ + IWL_RATE_##rp##M_INDEX, \ IWL_RATE_##rn##M_INDEX } +#define IWL_DECLARE_MCS_RATE(s) \ + [IWL_RATE_MCS_##s##_INDEX] = { IWL_RATE_INVM_PLCP, \ + IWL_RATE_HT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_HT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_VHT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_INVM_INDEX, \ + IWL_RATE_INVM_INDEX } + /* * Parameter order: * rate, ht rate, prev rate, next rate @@ -102,16 +113,17 @@ static const struct iwl_rs_rate_info iwl_rates[IWL_RATE_COUNT] = { IWL_DECLARE_RATE_INFO(2, INV, 1, 5), /* 2mbps */ IWL_DECLARE_RATE_INFO(5, INV, 2, 11), /*5.5mbps */ IWL_DECLARE_RATE_INFO(11, INV, 9, 12), /* 11mbps */ - IWL_DECLARE_RATE_INFO(6, 6, 5, 11), /* 6mbps */ - IWL_DECLARE_RATE_INFO(9, 6, 6, 11), /* 9mbps */ - IWL_DECLARE_RATE_INFO(12, 12, 11, 18), /* 12mbps */ - IWL_DECLARE_RATE_INFO(18, 18, 12, 24), /* 18mbps */ - IWL_DECLARE_RATE_INFO(24, 24, 18, 36), /* 24mbps */ - IWL_DECLARE_RATE_INFO(36, 36, 24, 48), /* 36mbps */ - IWL_DECLARE_RATE_INFO(48, 48, 36, 54), /* 48mbps */ - IWL_DECLARE_RATE_INFO(54, 54, 48, INV), /* 54mbps */ - IWL_DECLARE_RATE_INFO(60, 60, 48, INV), /* 60mbps */ - /* FIXME:RS: ^^ should be INV (legacy) */ + IWL_DECLARE_RATE_INFO(6, 0, 5, 11), /* 6mbps ; MCS 0 */ + IWL_DECLARE_RATE_INFO(9, INV, 6, 11), /* 9mbps */ + IWL_DECLARE_RATE_INFO(12, 1, 11, 18), /* 12mbps ; MCS 1 */ + IWL_DECLARE_RATE_INFO(18, 2, 12, 24), /* 18mbps ; MCS 2 */ + IWL_DECLARE_RATE_INFO(24, 3, 18, 36), /* 24mbps ; MCS 3 */ + IWL_DECLARE_RATE_INFO(36, 4, 24, 48), /* 36mbps ; MCS 4 */ + IWL_DECLARE_RATE_INFO(48, 5, 36, 54), /* 48mbps ; MCS 5 */ + IWL_DECLARE_RATE_INFO(54, 6, 48, INV), /* 54mbps ; MCS 6 */ + IWL_DECLARE_MCS_RATE(7), /* MCS 7 */ + IWL_DECLARE_MCS_RATE(8), /* MCS 8 */ + IWL_DECLARE_MCS_RATE(9), /* MCS 9 */ }; static inline u8 rs_extract_rate(u32 rate_n_flags) @@ -124,26 +136,30 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) { int idx = 0; - /* HT rate format */ if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = rs_extract_rate(rate_n_flags); - - WARN_ON_ONCE(idx >= IWL_RATE_MIMO3_6M_PLCP); - if (idx >= IWL_RATE_MIMO2_6M_PLCP) - idx = idx - IWL_RATE_MIMO2_6M_PLCP; + idx = rate_n_flags & RATE_HT_MCS_RATE_CODE_MSK; + idx += IWL_RATE_MCS_0_INDEX; - idx += IWL_FIRST_OFDM_RATE; - /* skip 9M not supported in ht*/ + /* skip 9M not supported in HT*/ if (idx >= IWL_RATE_9M_INDEX) idx += 1; if ((idx >= IWL_FIRST_HT_RATE) && (idx <= IWL_LAST_HT_RATE)) return idx; + } else if (rate_n_flags & RATE_MCS_VHT_MSK) { + idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK; + idx += IWL_RATE_MCS_0_INDEX; - /* legacy rate format, search for match in table */ + /* skip 9M not supported in VHT*/ + if (idx >= IWL_RATE_9M_INDEX) + idx++; + if ((idx >= IWL_FIRST_VHT_RATE) && (idx <= IWL_LAST_VHT_RATE)) + return idx; } else { + /* legacy rate format, search for match in table */ + + u8 legacy_rate = rs_extract_rate(rate_n_flags); for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) - if (iwl_rates[idx].plcp == - rs_extract_rate(rate_n_flags)) + if (iwl_rates[idx].plcp == legacy_rate) return idx; } @@ -200,6 +216,13 @@ static s32 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 112, 0, 220, 326, 429, 629, 819, 912, 1000, 1173, 1284}, }; +static s32 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 130, 0, 191, 223, 244, 273, 288, 294, 298, 305, 308}, + {0, 0, 0, 0, 138, 0, 200, 231, 251, 279, 293, 298, 302, 308, 312}, + {0, 0, 0, 0, 217, 0, 429, 634, 834, 1220, 1585, 1760, 1931, 2258, 2466}, + {0, 0, 0, 0, 241, 0, 475, 701, 921, 1343, 1741, 1931, 2117, 2468, 2691}, +}; + static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250, 261, 0}, {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256, 267, 0}, @@ -214,6 +237,13 @@ static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 221, 0, 430, 630, 816, 1169, 1490, 1641, 1784, 2053, 2221}, }; +static s32 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 182, 0, 240, 264, 278, 299, 308, 311, 313, 317, 319}, + {0, 0, 0, 0, 190, 0, 247, 269, 282, 302, 310, 313, 315, 319, 320}, + {0, 0, 0, 0, 428, 0, 833, 1215, 1577, 2254, 2863, 3147, 3418, 3913, 4219}, + {0, 0, 0, 0, 474, 0, 920, 1338, 1732, 2464, 3116, 3418, 3705, 4225, 4545}, +}; + /* mbps, mcs */ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = { { "1", "BPSK DSSS"}, @@ -424,42 +454,56 @@ static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm, { u32 rate_n_flags = 0; + rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) & + RATE_MCS_ANT_ABC_MSK); + if (is_legacy(tbl->lq_type)) { - rate_n_flags = iwl_rates[index].plcp; + rate_n_flags |= iwl_rates[index].plcp; if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE) rate_n_flags |= RATE_MCS_CCK_MSK; - } else if (is_Ht(tbl->lq_type)) { - if (index > IWL_LAST_HT_RATE) { + return rate_n_flags; + } + + if (is_ht(tbl->lq_type)) { + if (index < IWL_FIRST_HT_RATE || index > IWL_LAST_HT_RATE) { IWL_ERR(mvm, "Invalid HT rate index %d\n", index); index = IWL_LAST_HT_RATE; } - rate_n_flags = RATE_MCS_HT_MSK; + rate_n_flags |= RATE_MCS_HT_MSK; - if (is_siso(tbl->lq_type)) - rate_n_flags |= iwl_rates[index].plcp_siso; - else if (is_mimo2(tbl->lq_type)) - rate_n_flags |= iwl_rates[index].plcp_mimo2; + if (is_ht_siso(tbl->lq_type)) + rate_n_flags |= iwl_rates[index].plcp_ht_siso; + else if (is_ht_mimo2(tbl->lq_type)) + rate_n_flags |= iwl_rates[index].plcp_ht_mimo2; else WARN_ON_ONCE(1); + } else if (is_vht(tbl->lq_type)) { + if (index < IWL_FIRST_VHT_RATE || index > IWL_LAST_VHT_RATE) { + IWL_ERR(mvm, "Invalid VHT rate index %d\n", index); + index = IWL_LAST_VHT_RATE; + } + rate_n_flags |= RATE_MCS_VHT_MSK; + if (is_vht_siso(tbl->lq_type)) + rate_n_flags |= iwl_rates[index].plcp_vht_siso; + else if (is_vht_mimo2(tbl->lq_type)) + rate_n_flags |= iwl_rates[index].plcp_vht_mimo2; + else + WARN_ON_ONCE(1); + } else { IWL_ERR(mvm, "Invalid tbl->lq_type %d\n", tbl->lq_type); } - rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) & - RATE_MCS_ANT_ABC_MSK); - - if (is_Ht(tbl->lq_type)) { - if (tbl->is_ht40) - rate_n_flags |= RATE_MCS_CHAN_WIDTH_40; - if (tbl->is_SGI) - rate_n_flags |= RATE_MCS_SGI_MSK; - - if (use_green) { - rate_n_flags |= RATE_HT_MCS_GF_MSK; - if (is_siso(tbl->lq_type) && tbl->is_SGI) { - rate_n_flags &= ~RATE_MCS_SGI_MSK; - IWL_ERR(mvm, "GF was set with SGI:SISO\n"); - } + rate_n_flags |= tbl->bw; + if (tbl->is_SGI) + rate_n_flags |= RATE_MCS_SGI_MSK; + + /* TODO: remove GF completely ? */ + if (use_green) { + rate_n_flags |= RATE_HT_MCS_GF_MSK; + if (is_ht_siso(tbl->lq_type) && tbl->is_SGI) { + rate_n_flags &= ~RATE_MCS_SGI_MSK; + IWL_ERR(mvm, "GF was set with SGI:SISO\n"); } } return rate_n_flags; @@ -476,7 +520,7 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags, { u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK); u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags); - u8 mcs; + u8 nss; memset(tbl, 0, offsetof(struct iwl_scale_tbl_info, win)); *rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags); @@ -486,41 +530,62 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags, return -EINVAL; } tbl->is_SGI = 0; /* default legacy setup */ - tbl->is_ht40 = 0; + tbl->bw = 0; tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS); tbl->lq_type = LQ_NONE; tbl->max_search = IWL_MAX_SEARCH; - /* legacy rate format */ - if (!(rate_n_flags & RATE_MCS_HT_MSK)) { + /* Legacy */ + if (!(rate_n_flags & RATE_MCS_HT_MSK) && + !(rate_n_flags & RATE_MCS_VHT_MSK)) { if (num_of_ant == 1) { if (band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; + tbl->lq_type = LQ_LEGACY_A; else - tbl->lq_type = LQ_G; + tbl->lq_type = LQ_LEGACY_G; } - /* HT rate format */ - } else { - if (rate_n_flags & RATE_MCS_SGI_MSK) - tbl->is_SGI = 1; - - if (rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */ - tbl->is_ht40 = 1; - - mcs = rs_extract_rate(rate_n_flags); - - /* SISO */ - if (mcs <= IWL_RATE_SISO_60M_PLCP) { - if (num_of_ant == 1) - tbl->lq_type = LQ_SISO; /*else NONE*/ - /* MIMO2 */ - } else if (mcs <= IWL_RATE_MIMO2_60M_PLCP) { - if (num_of_ant == 2) - tbl->lq_type = LQ_MIMO2; + + return 0; + } + + /* HT or VHT */ + if (rate_n_flags & RATE_MCS_SGI_MSK) + tbl->is_SGI = 1; + + tbl->bw = rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK; + + if (rate_n_flags & RATE_MCS_HT_MSK) { + nss = ((rate_n_flags & RATE_HT_MCS_NSS_MSK) >> + RATE_HT_MCS_NSS_POS) + 1; + + if (nss == 1) { + tbl->lq_type = LQ_HT_SISO; + WARN_ON_ONCE(num_of_ant != 1); + } else if (nss == 2) { + tbl->lq_type = LQ_HT_MIMO2; + WARN_ON_ONCE(num_of_ant != 2); } else { - WARN_ON_ONCE(num_of_ant == 3); + WARN_ON_ONCE(1); + } + } else if (rate_n_flags & RATE_MCS_VHT_MSK) { + nss = ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> + RATE_VHT_MCS_NSS_POS) + 1; + + if (nss == 1) { + tbl->lq_type = LQ_VHT_SISO; + WARN_ON_ONCE(num_of_ant != 1); + } else if (nss == 2) { + tbl->lq_type = LQ_VHT_MIMO2; + WARN_ON_ONCE(num_of_ant != 2); + } else { + WARN_ON_ONCE(1); } } + + WARN_ON_ONCE(tbl->bw == RATE_MCS_CHAN_WIDTH_160); + WARN_ON_ONCE(tbl->bw == RATE_MCS_CHAN_WIDTH_80 && + !is_vht(tbl->lq_type)); + return 0; } @@ -579,16 +644,15 @@ static u16 rs_get_supported_rates(struct iwl_lq_sta *lq_sta, struct ieee80211_hdr *hdr, enum iwl_table_type rate_type) { - if (is_legacy(rate_type)) { + if (is_legacy(rate_type)) return lq_sta->active_legacy_rate; - } else { - if (is_siso(rate_type)) - return lq_sta->active_siso_rate; - else { - WARN_ON_ONCE(!is_mimo2(rate_type)); - return lq_sta->active_mimo2_rate; - } - } + else if (is_siso(rate_type)) + return lq_sta->active_siso_rate; + else if (is_mimo2(rate_type)) + return lq_sta->active_mimo2_rate; + + WARN_ON_ONCE(1); + return 0; } static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask, @@ -665,15 +729,15 @@ static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta, switch_to_legacy = 1; scale_index = rs_ht_to_legacy[scale_index]; if (lq_sta->band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; + tbl->lq_type = LQ_LEGACY_A; else - tbl->lq_type = LQ_G; + tbl->lq_type = LQ_LEGACY_G; if (num_of_ant(tbl->ant_type) > 1) tbl->ant_type = first_antenna(iwl_fw_valid_tx_ant(mvm->fw)); - tbl->is_ht40 = 0; + tbl->bw = 0; tbl->is_SGI = 0; tbl->max_search = IWL_MAX_SEARCH; } @@ -717,6 +781,18 @@ static bool table_type_matches(struct iwl_scale_tbl_info *a, (a->is_SGI == b->is_SGI); } +static u32 rs_ch_width_from_mac_flags(enum mac80211_rate_control_flags flags) +{ + if (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_40; + else if (flags & IEEE80211_TX_RC_80_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_80; + else if (flags & IEEE80211_TX_RC_160_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_160; + + return RATE_MCS_CHAN_WIDTH_20; +} + /* * mac80211 sends us Tx status */ @@ -786,16 +862,23 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, */ if (info->band == IEEE80211_BAND_2GHZ) mac_index += IWL_FIRST_OFDM_RATE; + } else if (mac_flags & IEEE80211_TX_RC_VHT_MCS) { + mac_index &= RATE_VHT_MCS_RATE_CODE_MSK; + if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE)) + mac_index++; } + /* Here we actually compare this rate to the latest LQ command */ if ((mac_index < 0) || (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) || - (tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || + (tbl_type.bw != rs_ch_width_from_mac_flags(mac_flags)) || (tbl_type.ant_type != info->status.antenna) || (!!(tx_rate & RATE_MCS_HT_MSK) != - !!(mac_flags & IEEE80211_TX_RC_MCS)) || + !!(mac_flags & IEEE80211_TX_RC_MCS)) || + (!!(tx_rate & RATE_MCS_VHT_MSK) != + !!(mac_flags & IEEE80211_TX_RC_VHT_MCS)) || (!!(tx_rate & RATE_HT_MCS_GF_MSK) != - !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || + !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || (rs_index != mac_index)) { IWL_DEBUG_RATE(mvm, "initial rate %d does not match %d (0x%x)\n", @@ -950,7 +1033,8 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, s32 (*ht_tbl_pointer)[IWL_RATE_COUNT]; /* Check for invalid LQ type */ - if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) { + if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_ht(tbl->lq_type) && + !(is_vht(tbl->lq_type)))) { tbl->expected_tpt = expected_tpt_legacy; return; } @@ -961,18 +1045,40 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, return; } + ht_tbl_pointer = expected_tpt_mimo2_20MHz; /* Choose among many HT tables depending on number of streams - * (SISO/MIMO2), channel width (20/40), SGI, and aggregation + * (SISO/MIMO2), channel width (20/40/80), SGI, and aggregation * status */ - if (is_siso(tbl->lq_type) && !tbl->is_ht40) - ht_tbl_pointer = expected_tpt_siso_20MHz; - else if (is_siso(tbl->lq_type)) - ht_tbl_pointer = expected_tpt_siso_40MHz; - else if (is_mimo2(tbl->lq_type) && !tbl->is_ht40) - ht_tbl_pointer = expected_tpt_mimo2_20MHz; - else { - WARN_ON_ONCE(!is_mimo2(tbl->lq_type)); - ht_tbl_pointer = expected_tpt_mimo2_40MHz; + if (is_siso(tbl->lq_type)) { + switch (tbl->bw) { + case RATE_MCS_CHAN_WIDTH_20: + ht_tbl_pointer = expected_tpt_siso_20MHz; + break; + case RATE_MCS_CHAN_WIDTH_40: + ht_tbl_pointer = expected_tpt_siso_40MHz; + break; + case RATE_MCS_CHAN_WIDTH_80: + ht_tbl_pointer = expected_tpt_siso_80MHz; + break; + default: + WARN_ON_ONCE(1); + } + } else if (is_mimo2(tbl->lq_type)) { + switch (tbl->bw) { + case RATE_MCS_CHAN_WIDTH_20: + ht_tbl_pointer = expected_tpt_mimo2_20MHz; + break; + case RATE_MCS_CHAN_WIDTH_40: + ht_tbl_pointer = expected_tpt_mimo2_40MHz; + break; + case RATE_MCS_CHAN_WIDTH_80: + ht_tbl_pointer = expected_tpt_mimo2_80MHz; + break; + default: + WARN_ON_ONCE(1); + } + } else { + WARN_ON_ONCE(1); } if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */ @@ -1087,11 +1193,6 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm, return new_rate; } -static bool iwl_is_ht40_tx_allowed(struct ieee80211_sta *sta) -{ - return sta->bandwidth >= IEEE80211_STA_RX_BW_40; -} - /* Move to the next action and wrap around to the first action in case * we're at the last action. Assumes actions start at 0. */ @@ -1105,6 +1206,36 @@ static inline void rs_move_next_action(struct iwl_scale_tbl_info *tbl, tbl->action = (tbl->action + 1) % (last_action + 1); } +static void rs_set_bw_from_sta(struct iwl_scale_tbl_info *tbl, + struct ieee80211_sta *sta) +{ + if (sta->bandwidth >= IEEE80211_STA_RX_BW_80) + tbl->bw = RATE_MCS_CHAN_WIDTH_80; + else if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) + tbl->bw = RATE_MCS_CHAN_WIDTH_40; + else + tbl->bw = RATE_MCS_CHAN_WIDTH_20; +} + +static bool rs_sgi_allowed(struct iwl_scale_tbl_info *tbl, + struct ieee80211_sta *sta) +{ + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap; + + if (is_ht20(tbl) && (ht_cap->cap & + IEEE80211_HT_CAP_SGI_20)) + return true; + if (is_ht40(tbl) && (ht_cap->cap & + IEEE80211_HT_CAP_SGI_40)) + return true; + if (is_ht80(tbl) && (vht_cap->cap & + IEEE80211_VHT_CAP_SHORT_GI_80)) + return true; + + return false; +} + /* * Set up search table for MIMO2 */ @@ -1129,16 +1260,12 @@ static int rs_switch_to_mimo2(struct iwl_mvm *mvm, IWL_DEBUG_RATE(mvm, "LQ: try to switch to MIMO2\n"); - tbl->lq_type = LQ_MIMO2; + tbl->lq_type = lq_sta->is_vht ? LQ_VHT_MIMO2 : LQ_HT_MIMO2; tbl->action = 0; tbl->max_search = IWL_MAX_SEARCH; rate_mask = lq_sta->active_mimo2_rate; - if (iwl_is_ht40_tx_allowed(sta)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; - + rs_set_bw_from_sta(tbl, sta); rs_set_expected_tpt_table(lq_sta, tbl); rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index); @@ -1174,19 +1301,15 @@ static int rs_switch_to_siso(struct iwl_mvm *mvm, IWL_DEBUG_RATE(mvm, "LQ: try to switch to SISO\n"); - tbl->lq_type = LQ_SISO; + tbl->lq_type = lq_sta->is_vht ? LQ_VHT_SISO : LQ_HT_SISO; tbl->action = 0; tbl->max_search = IWL_MAX_SEARCH; rate_mask = lq_sta->active_siso_rate; - if (iwl_is_ht40_tx_allowed(sta)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; - if (is_green) tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/ + rs_set_bw_from_sta(tbl, sta); rs_set_expected_tpt_table(lq_sta, tbl); rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index); @@ -1313,7 +1436,6 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm, struct iwl_scale_tbl_info *search_tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; u32 sz = (sizeof(struct iwl_scale_tbl_info) - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); u8 start_action; @@ -1385,11 +1507,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm, goto out; break; case IWL_SISO_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) + if (!rs_sgi_allowed(tbl, sta)) break; IWL_DEBUG_RATE(mvm, "LQ: SISO toggle SGI/NGI\n"); @@ -1445,7 +1563,6 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm, struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); struct iwl_scale_tbl_info *search_tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; u32 sz = (sizeof(struct iwl_scale_tbl_info) - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); u8 start_action; @@ -1502,11 +1619,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm, break; case IWL_MIMO2_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) + if (!rs_sgi_allowed(tbl, sta)) break; IWL_DEBUG_RATE(mvm, "LQ: MIMO2 toggle SGI/NGI\n"); @@ -2167,7 +2280,6 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta, struct iwl_mvm *mvm __maybe_unused = IWL_OP_MODE_GET_MVM(op_mode); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct iwl_lq_sta *lq_sta = mvm_sta; - int rate_idx; IWL_DEBUG_RATE_LIMIT(mvm, "rate scale calculate new rate for skb\n"); @@ -2192,36 +2304,9 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta, if (rate_control_send_low(sta, mvm_sta, txrc)) return; - rate_idx = lq_sta->last_txrate_idx; - - if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) { - rate_idx -= IWL_FIRST_OFDM_RATE; - /* 6M and 9M shared same MCS index */ - rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0; - WARN_ON_ONCE(rs_extract_rate(lq_sta->last_rate_n_flags) >= - IWL_RATE_MIMO3_6M_PLCP); - if (rs_extract_rate(lq_sta->last_rate_n_flags) >= - IWL_RATE_MIMO2_6M_PLCP) - rate_idx = rate_idx + MCS_INDEX_PER_STREAM; - info->control.rates[0].flags = IEEE80211_TX_RC_MCS; - if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK) - info->control.rates[0].flags |= IEEE80211_TX_RC_SHORT_GI; - if (lq_sta->last_rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */ - info->control.rates[0].flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (lq_sta->last_rate_n_flags & RATE_HT_MCS_GF_MSK) - info->control.rates[0].flags |= IEEE80211_TX_RC_GREEN_FIELD; - } else { - /* Check for invalid rates */ - if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) || - ((sband->band == IEEE80211_BAND_5GHZ) && - (rate_idx < IWL_FIRST_OFDM_RATE))) - rate_idx = rate_lowest_index(sband, sta); - /* On valid 5 GHz rate, adjust index */ - else if (sband->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->control.rates[0].flags = 0; - } - info->control.rates[0].idx = rate_idx; + iwl_mvm_hwrate_to_tx_rate(lq_sta->last_rate_n_flags, + info->band, &info->control.rates[0]); + info->control.rates[0].count = 1; } @@ -2238,6 +2323,24 @@ static void *rs_alloc_sta(void *mvm_rate, struct ieee80211_sta *sta, return &sta_priv->lq_sta; } +static int rs_vht_highest_rx_mcs_index(struct ieee80211_sta_vht_cap *vht_cap, + int nss) +{ + u16 rx_mcs = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) & + (0x3 << (2 * (nss - 1))); + rx_mcs >>= (2 * (nss - 1)); + + if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_7) + return IWL_RATE_MCS_7_INDEX; + else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_8) + return IWL_RATE_MCS_8_INDEX; + else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_9) + return IWL_RATE_MCS_9_INDEX; + + WARN_ON_ONCE(rx_mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED); + return -1; +} + /* * Called after adding a new station to initialize rate scaling */ @@ -2247,6 +2350,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int i, j; struct ieee80211_hw *hw = mvm->hw; struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap; struct iwl_mvm_sta *sta_priv; struct iwl_lq_sta *lq_sta; struct ieee80211_supported_band *sband; @@ -2285,25 +2389,54 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, for_each_set_bit(i, &supp, BITS_PER_LONG) lq_sta->active_legacy_rate |= BIT(sband->bitrates[i].hw_value); - /* - * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3), - * supp_rates[] does not; shift to convert format, force 9 MBits off. - */ - lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; - lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; - lq_sta->active_siso_rate &= ~((u16)0x2); - lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; + /* TODO: should probably account for rx_highest for both HT/VHT */ + if (!vht_cap || !vht_cap->vht_supported) { + /* active_siso_rate mask includes 9 MBits (bit 5), + * and CCK (bits 0-3), supp_rates[] does not; + * shift to convert format, force 9 MBits off. + */ + lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; + lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; + lq_sta->active_siso_rate &= ~((u16)0x2); + lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; + + /* Same here */ + lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; + lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; + lq_sta->active_mimo2_rate &= ~((u16)0x2); + lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; + + lq_sta->is_vht = false; + } else { + int highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 1); + if (highest_mcs >= IWL_RATE_MCS_0_INDEX) { + for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) { + if (i == IWL_RATE_9M_INDEX) + continue; + + lq_sta->active_siso_rate |= BIT(i); + } + } - /* Same here */ - lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; - lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; - lq_sta->active_mimo2_rate &= ~((u16)0x2); - lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; + highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 2); + if (highest_mcs >= IWL_RATE_MCS_0_INDEX) { + for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) { + if (i == IWL_RATE_9M_INDEX) + continue; + + lq_sta->active_mimo2_rate |= BIT(i); + } + } + + /* TODO: avoid MCS9 in 20Mhz which isn't valid for 11ac */ + lq_sta->is_vht = true; + } IWL_DEBUG_RATE(mvm, - "SISO-RATE=%X MIMO2-RATE=%X\n", + "SISO-RATE=%X MIMO2-RATE=%X VHT=%d\n", lq_sta->active_siso_rate, - lq_sta->active_mimo2_rate); + lq_sta->active_mimo2_rate, + lq_sta->is_vht); /* These values will be overridden later */ lq_sta->lq.single_stream_ant_msk = @@ -2406,7 +2539,6 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm, rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type, &rate_idx); - /* Indicate to uCode which entries might be MIMO. * If initial rate was MIMO, this will finally end up * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */ @@ -2432,7 +2564,9 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm, } /* Don't allow HT rates after next pass. - * rs_get_lower_rate() will change type to LQ_A or LQ_G. */ + * rs_get_lower_rate() will change type to LQ_LEGACY_A + * or LQ_LEGACY_G. + */ use_ht_possible = 0; /* Override next rate if needed for debug purposes */ @@ -2563,12 +2697,15 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, (iwl_fw_valid_tx_ant(mvm->fw) & ANT_B) ? "ANT_B," : "", (iwl_fw_valid_tx_ant(mvm->fw) & ANT_C) ? "ANT_C" : ""); desc += sprintf(buff+desc, "lq type %s\n", - (is_legacy(tbl->lq_type)) ? "legacy" : "HT"); - if (is_Ht(tbl->lq_type)) { + (is_legacy(tbl->lq_type)) ? "legacy" : + is_vht(tbl->lq_type) ? "VHT" : "HT"); + if (is_ht(tbl->lq_type)) { desc += sprintf(buff+desc, " %s", (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2"); desc += sprintf(buff+desc, " %s", - (tbl->is_ht40) ? "40MHz" : "20MHz"); + (is_ht20(tbl)) ? "20MHz" : + (is_ht40(tbl)) ? "40MHz" : + (is_ht80(tbl)) ? "80Mhz" : "BAD BW"); desc += sprintf(buff+desc, " %s %s %s\n", (tbl->is_SGI) ? "SGI" : "", (lq_sta->is_green) ? "GF enabled" : "", @@ -2630,7 +2767,7 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, int desc = 0; int i, j; ssize_t ret; - + struct iwl_scale_tbl_info *tbl; struct iwl_lq_sta *lq_sta = file->private_data; buff = kmalloc(1024, GFP_KERNEL); @@ -2638,21 +2775,24 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, return -ENOMEM; for (i = 0; i < LQ_SIZE; i++) { + tbl = &(lq_sta->lq_info[i]); desc += sprintf(buff+desc, - "%s type=%d SGI=%d HT40=%d DUP=0 GF=%d\n" + "%s type=%d SGI=%d BW=%s DUP=0 GF=%d\n" "rate=0x%X\n", lq_sta->active_tbl == i ? "*" : "x", - lq_sta->lq_info[i].lq_type, - lq_sta->lq_info[i].is_SGI, - lq_sta->lq_info[i].is_ht40, + tbl->lq_type, + tbl->is_SGI, + is_ht20(tbl) ? "20Mhz" : + is_ht40(tbl) ? "40Mhz" : + is_ht80(tbl) ? "80Mhz" : "ERR", lq_sta->is_green, - lq_sta->lq_info[i].current_rate); + tbl->current_rate); for (j = 0; j < IWL_RATE_COUNT; j++) { desc += sprintf(buff+desc, "counter=%d success=%d %%=%d\n", - lq_sta->lq_info[i].win[j].counter, - lq_sta->lq_info[i].win[j].success_counter, - lq_sta->lq_info[i].win[j].success_ratio); + tbl->win[j].counter, + tbl->win[j].success_counter, + tbl->win[j].success_ratio); } } ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h index 1e47a0c19b75..4709b4395c01 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.h +++ b/drivers/net/wireless/iwlwifi/mvm/rs.h @@ -35,9 +35,11 @@ #include "iwl-trans.h" struct iwl_rs_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; /* 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 */ }; @@ -83,35 +85,52 @@ enum { #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) -/* uCode API values for OFDM high-throughput (HT) bit rates */ +/* uCode API values for HT/VHT 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, + 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) @@ -196,20 +215,31 @@ enum { enum iwl_table_type { LQ_NONE, - LQ_G, /* legacy types */ - LQ_A, - LQ_SISO, /* high-throughput types */ - LQ_MIMO2, + 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, }; -#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_mimo(tbl) is_mimo2(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 is_legacy(tbl) (((tbl) == LQ_LEGACY_G) || ((tbl) == LQ_LEGACY_A)) +#define is_ht_siso(tbl) ((tbl) == LQ_HT_SISO) +#define is_ht_mimo2(tbl) ((tbl) == LQ_HT_MIMO2) +#define is_vht_siso(tbl) ((tbl) == LQ_VHT_SISO) +#define is_vht_mimo2(tbl) ((tbl) == LQ_VHT_MIMO2) +#define is_siso(tbl) (is_ht_siso(tbl) || is_vht_siso(tbl)) +#define is_mimo2(tbl) (is_ht_mimo2(tbl) || is_vht_mimo2(tbl)) +#define is_mimo(tbl) (is_mimo2(tbl)) +#define is_ht(tbl) (is_ht_siso(tbl) || is_ht_mimo2(tbl)) +#define is_vht(tbl) (is_vht_siso(tbl) || is_vht_mimo2(tbl)) +#define is_a_band(tbl) ((tbl) == LQ_LEGACY_A) +#define is_g_band(tbl) ((tbl) == LQ_LEGACY_G) + +#define is_ht20(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_20) +#define is_ht40(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_40) +#define is_ht80(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_80) #define IWL_MAX_MCS_DISPLAY_SIZE 12 @@ -240,7 +270,7 @@ 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 */ + u32 bw; /* channel bandwidth; RATE_MCS_CHAN_WIDTH_XX */ u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */ u8 max_search; /* maximun number of tables we can search */ s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ @@ -271,6 +301,7 @@ struct iwl_lq_sta { u8 action_counter; /* # mode-switch actions tried */ u8 is_green; + bool is_vht; enum ieee80211_band band; /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index 1ef70d0bd9e2..1606e1da5b0c 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/iwlwifi/mvm/tx.c @@ -511,16 +511,10 @@ const char *iwl_mvm_get_tx_fail_reason(u32 status) } #endif /* CONFIG_IWLWIFI_DEBUG */ -/** - * translate ucode response to mac80211 tx status control values - */ -static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags, - struct ieee80211_tx_info *info) +void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags, + enum ieee80211_band band, + struct ieee80211_tx_rate *r) { - struct ieee80211_tx_rate *r = &info->status.rates[0]; - - info->status.antenna = - ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); if (rate_n_flags & RATE_HT_MCS_GF_MSK) r->flags |= IEEE80211_TX_RC_GREEN_FIELD; switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { @@ -549,10 +543,23 @@ static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags, r->flags |= IEEE80211_TX_RC_VHT_MCS; } else { r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, - info->band); + band); } } +/** + * translate ucode response to mac80211 tx status control values + */ +static void iwl_mvm_hwrate_to_tx_status(u32 rate_n_flags, + struct ieee80211_tx_info *info) +{ + struct ieee80211_tx_rate *r = &info->status.rates[0]; + + info->status.antenna = + ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); + iwl_mvm_hwrate_to_tx_rate(rate_n_flags, info->band, r); +} + static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { @@ -602,8 +609,8 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, } info->status.rates[0].count = tx_resp->failure_frame + 1; - iwl_mvm_hwrate_to_tx_control(le32_to_cpu(tx_resp->initial_rate), - info); + iwl_mvm_hwrate_to_tx_status(le32_to_cpu(tx_resp->initial_rate), + info); /* Single frame failure in an AMPDU queue => send BAR */ if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE && @@ -900,8 +907,8 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, info->flags |= IEEE80211_TX_STAT_AMPDU; info->status.ampdu_ack_len = ba_notif->txed_2_done; info->status.ampdu_len = ba_notif->txed; - iwl_mvm_hwrate_to_tx_control(tid_data->rate_n_flags, - info); + iwl_mvm_hwrate_to_tx_status(tid_data->rate_n_flags, + info); } } |