diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rs.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 81 |
1 files changed, 50 insertions, 31 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index 089972280daa..8c9069f28a58 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -1,21 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /****************************************************************************** * * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation - * - * 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. - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. + * Copyright(c) 2018 - 2019 Intel Corporation * * Contact Information: * Intel Linux Wireless <linuxwifi@intel.com> @@ -1643,8 +1632,26 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm, static u32 rs_bw_from_sta_bw(struct ieee80211_sta *sta) { + struct ieee80211_sta_vht_cap *sta_vht_cap = &sta->vht_cap; + struct ieee80211_vht_cap vht_cap = { + .vht_cap_info = cpu_to_le32(sta_vht_cap->cap), + .supp_mcs = sta_vht_cap->vht_mcs, + }; + switch (sta->bandwidth) { case IEEE80211_STA_RX_BW_160: + /* + * Don't use 160 MHz if VHT extended NSS support + * says we cannot use 2 streams, we don't want to + * deal with this. + * We only check MCS 0 - they will support that if + * we got here at all and we don't care which MCS, + * we want to determine a more global state. + */ + if (ieee80211_get_vht_max_nss(&vht_cap, + IEEE80211_VHT_CHANWIDTH_160MHZ, + 0, true) < sta->rx_nss) + return RATE_MCS_CHAN_WIDTH_80; return RATE_MCS_CHAN_WIDTH_160; case IEEE80211_STA_RX_BW_80: return RATE_MCS_CHAN_WIDTH_80; @@ -1744,6 +1751,7 @@ static void rs_set_amsdu_len(struct iwl_mvm *mvm, struct ieee80211_sta *sta, enum rs_action scale_action) { struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + int i; /* * In case TLC offload is not active amsdu_enabled is either 0xFFFF @@ -1756,7 +1764,25 @@ static void rs_set_amsdu_len(struct iwl_mvm *mvm, struct ieee80211_sta *sta, else mvmsta->amsdu_enabled = 0xFFFF; - mvmsta->max_amsdu_len = sta->max_amsdu_len; + if (mvmsta->vif->bss_conf.he_support && + !iwlwifi_mod_params.disable_11ax) + mvmsta->max_amsdu_len = sta->max_amsdu_len; + else + mvmsta->max_amsdu_len = min_t(int, sta->max_amsdu_len, 8500); + + sta->max_rc_amsdu_len = mvmsta->max_amsdu_len; + + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + if (mvmsta->amsdu_enabled) + sta->max_tid_amsdu_len[i] = + iwl_mvm_max_amsdu_size(mvm, sta, i); + else + /* + * Not so elegant, but this will effectively + * prevent AMSDU on this TID + */ + sta->max_tid_amsdu_len[i] = 1; + } } /* @@ -1777,7 +1803,7 @@ static bool rs_tweak_rate_tbl(struct iwl_mvm *mvm, struct iwl_scale_tbl_info *tbl, enum rs_action scale_action) { - if (sta->bandwidth != IEEE80211_STA_RX_BW_80) + if (rs_bw_from_sta_bw(sta) != RATE_MCS_CHAN_WIDTH_80) return false; if (!is_vht_siso(&tbl->rate)) @@ -2923,10 +2949,6 @@ static void rs_drv_get_rate(void *mvm_r, struct ieee80211_sta *sta, mvm_sta = NULL; } - /* Send management frames and NO_ACK data using lowest rate. */ - if (rate_control_send_low(sta, mvm_sta, txrc)) - return; - if (!mvm_sta) return; @@ -3332,12 +3354,12 @@ static void rs_fill_rates_for_column(struct iwl_mvm *mvm, /* Building the rate table is non trivial. When we're in MIMO2/VHT/80Mhz/SGI * column the rate table should look like this: * - * rate[0] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI - * rate[1] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI - * rate[2] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI - * rate[3] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI - * rate[4] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI - * rate[5] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI + * rate[0] 0x400F019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI + * rate[1] 0x400F019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI + * rate[2] 0x400F018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI + * rate[3] 0x400F018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI + * rate[4] 0x400F017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI + * rate[5] 0x400F017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI * rate[6] 0x4005007 VHT | ANT: A BW: 80Mhz MCS: 7 NSS: 1 NGI * rate[7] 0x4009006 VHT | ANT: B BW: 80Mhz MCS: 6 NSS: 1 NGI * rate[8] 0x4005005 VHT | ANT: A BW: 80Mhz MCS: 5 NSS: 1 NGI @@ -4041,9 +4063,8 @@ static ssize_t iwl_dbgfs_ss_force_write(struct iwl_lq_sta *lq_sta, char *buf, #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_lq_sta) #define MVM_DEBUGFS_ADD_FILE_RS(name, parent, mode) do { \ - if (!debugfs_create_file(#name, mode, parent, lq_sta, \ - &iwl_dbgfs_##name##_ops)) \ - goto err; \ + debugfs_create_file(#name, mode, parent, lq_sta, \ + &iwl_dbgfs_##name##_ops); \ } while (0) MVM_DEBUGFS_READ_WRITE_FILE_OPS(ss_force, 32); @@ -4071,9 +4092,6 @@ static void rs_drv_add_sta_debugfs(void *mvm, void *priv_sta, &lq_sta->pers.dbg_fixed_txp_reduction); MVM_DEBUGFS_ADD_FILE_RS(ss_force, dir, 0600); - return; -err: - IWL_ERR((struct iwl_mvm *)mvm, "Can't create debugfs entity\n"); } void rs_remove_sta_debugfs(void *mvm, void *mvm_sta) @@ -4108,6 +4126,7 @@ static const struct rate_control_ops rs_mvm_ops_drv = { .add_sta_debugfs = rs_drv_add_sta_debugfs, .remove_sta_debugfs = rs_remove_sta_debugfs, #endif + .capa = RATE_CTRL_CAPA_VHT_EXT_NSS_BW, }; void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, |