diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/coex.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/coex.c | 172 |
1 files changed, 154 insertions, 18 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c index 9fe1761691ec..13cdc077d8d3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2013-2014, 2018-2020, 2022-2023 Intel Corporation + * Copyright (C) 2013-2014, 2018-2020, 2022-2025 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH */ #include <linux/ieee80211.h> @@ -181,6 +181,9 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, struct iwl_mvm_sta *mvmsta; u32 value; + if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) + return 0; + mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); if (!mvmsta) return 0; @@ -205,7 +208,7 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, } struct iwl_bt_iterator_data { - struct iwl_bt_coex_profile_notif *notif; + struct iwl_bt_coex_prof_old_notif *notif; struct iwl_mvm *mvm; struct ieee80211_chanctx_conf *primary; struct ieee80211_chanctx_conf *secondary; @@ -216,15 +219,13 @@ struct iwl_bt_iterator_data { static inline void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, + struct iwl_mvm_vif_link_info *link_info, bool enable, int rssi) { - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - - mvmvif->bf_data.last_bt_coex_event = rssi; - mvmvif->bf_data.bt_coex_max_thold = + link_info->bf_data.last_bt_coex_event = rssi; + link_info->bf_data.bt_coex_max_thold = enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0; - mvmvif->bf_data.bt_coex_min_thold = + link_info->bf_data.bt_coex_min_thold = enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0; } @@ -252,6 +253,93 @@ static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm, swap(data->primary, data->secondary); } +/* + * This function receives the LB link id and checks if eSR should be + * enabled or disabled (due to BT coex) + */ +bool +iwl_mvm_bt_coex_calculate_esr_mode(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + s32 link_rssi, + bool primary) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + bool have_wifi_loss_rate = + iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, + BT_PROFILE_NOTIFICATION, 0) > 4 || + iwl_fw_lookup_notif_ver(mvm->fw, BT_COEX_GROUP, + PROFILE_NOTIF, 0) >= 1; + u8 wifi_loss_mid_high_rssi; + u8 wifi_loss_low_rssi; + u8 wifi_loss_rate; + + if (iwl_fw_lookup_notif_ver(mvm->fw, BT_COEX_GROUP, + PROFILE_NOTIF, 0) >= 1) { + /* For now, we consider 2.4 GHz band / ANT_A only */ + wifi_loss_mid_high_rssi = + mvm->last_bt_wifi_loss.wifi_loss_mid_high_rssi[PHY_BAND_24][0]; + wifi_loss_low_rssi = + mvm->last_bt_wifi_loss.wifi_loss_low_rssi[PHY_BAND_24][0]; + } else { + wifi_loss_mid_high_rssi = mvm->last_bt_notif.wifi_loss_mid_high_rssi; + wifi_loss_low_rssi = mvm->last_bt_notif.wifi_loss_low_rssi; + } + + if (wifi_loss_low_rssi == BT_OFF) + return true; + + if (primary) + return false; + + /* The feature is not supported */ + if (!have_wifi_loss_rate) + return true; + + + /* + * In case we don't know the RSSI - take the lower wifi loss, + * so we will more likely enter eSR, and if RSSI is low - + * we will get an update on this and exit eSR. + */ + if (!link_rssi) + wifi_loss_rate = wifi_loss_mid_high_rssi; + + else if (mvmvif->esr_active) + /* RSSI needs to get really low to disable eSR... */ + wifi_loss_rate = + link_rssi <= -IWL_MVM_BT_COEX_DISABLE_ESR_THRESH ? + wifi_loss_low_rssi : + wifi_loss_mid_high_rssi; + else + /* ...And really high before we enable it back */ + wifi_loss_rate = + link_rssi <= -IWL_MVM_BT_COEX_ENABLE_ESR_THRESH ? + wifi_loss_low_rssi : + wifi_loss_mid_high_rssi; + + return wifi_loss_rate <= IWL_MVM_BT_COEX_WIFI_LOSS_THRESH; +} + +void iwl_mvm_bt_coex_update_link_esr(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + int link_id) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_vif_link_info *link = mvmvif->link[link_id]; + + if (!ieee80211_vif_is_mld(vif) || + !iwl_mvm_vif_from_mac80211(vif)->authorized || + WARN_ON(!link)) + return; + + if (!iwl_mvm_bt_coex_calculate_esr_mode(mvm, vif, + (s8)link->beacon_stats.avg_signal, + link_id == iwl_mvm_get_primary_link(vif))) + /* In case we decided to exit eSR - stay with the primary */ + iwl_mvm_exit_esr(mvm, vif, IWL_MVM_ESR_EXIT_COEX, + iwl_mvm_get_primary_link(vif)); +} + static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_bt_iterator_data *data, @@ -291,12 +379,14 @@ static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, smps_mode, link_id); iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false); - /* FIXME: should this be per link? */ - iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); + iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false, + 0); } return; } + iwl_mvm_bt_coex_update_link_esr(mvm, vif, link_id); + if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2)) min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC; else @@ -385,13 +475,12 @@ static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF || !vif->cfg.assoc) { iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false); - /* FIXME: should this be per link? */ - iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); + iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false, 0); return; } /* try to get the avg rssi from fw */ - ave_rssi = mvmvif->bf_data.ave_beacon_signal; + ave_rssi = link_info->bf_data.ave_beacon_signal; /* if the RSSI isn't valid, fake it is very low */ if (!ave_rssi) @@ -407,7 +496,7 @@ static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, } /* Begin to monitor the RSSI: it may influence the reduced Tx power */ - iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); + iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, true, ave_rssi); } /* must be called under rcu_read_lock */ @@ -436,6 +525,32 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id); } +/* must be called under rcu_read_lock */ +static void iwl_mvm_bt_coex_notif_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = _data; + struct ieee80211_bss_conf *link_conf; + unsigned int link_id; + + lockdep_assert_held(&mvm->mutex); + + if (vif->type != NL80211_IFTYPE_STATION) + return; + + for_each_vif_active_link(vif, link_conf, link_id) { + struct ieee80211_chanctx_conf *chanctx_conf = + rcu_dereference_check(link_conf->chanctx_conf, + lockdep_is_held(&mvm->mutex)); + + if ((!chanctx_conf || + chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) + continue; + + iwl_mvm_bt_coex_update_link_esr(mvm, vif, link_id); + } +} + static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) { struct iwl_bt_iterator_data data = { @@ -454,6 +569,11 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_bt_notif_iterator, &data); + if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { + rcu_read_unlock(); + return; + } + iwl_mvm_bt_coex_tcm_based_ci(mvm, &data); if (data.primary) { @@ -513,11 +633,11 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) } } -void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, - struct iwl_rx_cmd_buffer *rxb) +void iwl_mvm_rx_bt_coex_old_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; + struct iwl_bt_coex_prof_old_notif *notif = (void *)pkt->data; IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); @@ -534,6 +654,22 @@ void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, iwl_mvm_bt_coex_notif_handle(mvm); } +void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) +{ + const struct iwl_rx_packet *pkt = rxb_addr(rxb); + const struct iwl_bt_coex_profile_notif *notif = (const void *)pkt->data; + + lockdep_assert_held(&mvm->mutex); + + mvm->last_bt_wifi_loss = *notif; + + ieee80211_iterate_active_interfaces(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_bt_coex_notif_iterator, + mvm); +} + void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, enum ieee80211_rssi_event_data rssi_event) { @@ -550,7 +686,7 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, * Rssi update while not associated - can happen since the statistics * are handled asynchronously */ - if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) + if (mvmvif->deflink.ap_sta_id == IWL_INVALID_STA) return; /* No BT - reports should be disabled */ |