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path: root/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/coex.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/coex.c172
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 */