From: Miri Korenblit Date: Fri, 11 Jul 2025 15:34:25 +0000 (+0300) Subject: wifi: iwlwifi: mld: Revert "wifi: iwlwifi: mld: allow EMLSR with 2.4 GHz when BT... X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7cc5f89bfbc309e8027eda255a1db0957c7fca86;p=users%2Fjedix%2Flinux-maple.git wifi: iwlwifi: mld: Revert "wifi: iwlwifi: mld: allow EMLSR with 2.4 GHz when BT is ON" Due to a hw bug, this feature won't be enabled. Revert its implementation. This reverts commit 37808a3788fd ("wifi: iwlwifi: mld: allow EMLSR with 2.4 GHz when BT is ON") Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250711183056.57755ac3f39d.I63ae0ee3e6cdc9b11175ad15927aaad3b8f8f47a@changeid --- diff --git a/drivers/net/wireless/intel/iwlwifi/mld/coex.c b/drivers/net/wireless/intel/iwlwifi/mld/coex.c index 32c727b3b391a..5f262bd43f21d 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/coex.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/coex.c @@ -24,13 +24,17 @@ int iwl_mld_send_bt_init_conf(struct iwl_mld *mld) void iwl_mld_handle_bt_coex_notif(struct iwl_mld *mld, struct iwl_rx_packet *pkt) { - const struct iwl_bt_coex_profile_notif *notif = (const void *)pkt->data; + const struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; const struct iwl_bt_coex_profile_notif zero_notif = {}; /* zeroed structure means that BT is OFF */ bool bt_is_active = memcmp(notif, &zero_notif, sizeof(*notif)); - mld->last_bt_notif = *notif; + if (bt_is_active == mld->bt_is_active) + return; + IWL_DEBUG_INFO(mld, "BT was turned %s\n", bt_is_active ? "ON" : "OFF"); + mld->bt_is_active = bt_is_active; + iwl_mld_emlsr_check_bt(mld); } diff --git a/drivers/net/wireless/intel/iwlwifi/mld/mld.h b/drivers/net/wireless/intel/iwlwifi/mld/mld.h index a9e59378f1427..8bc4749599cad 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/mld.h +++ b/drivers/net/wireless/intel/iwlwifi/mld/mld.h @@ -127,6 +127,7 @@ * cleanup using iwl_mld_free_internal_sta * @netdetect: indicates the FW is in suspend mode with netdetect configured * @p2p_device_vif: points to the p2p device vif if exists + * @bt_is_active: indicates that BT is active * @dev: pointer to device struct. For printing purposes * @trans: pointer to the transport layer * @cfg: pointer to the device configuration @@ -189,7 +190,6 @@ * @ptp_data: data of the PTP clock * @time_sync: time sync data. * @ftm_initiator: FTM initiator data - * @last_bt_notif: last received BT Coex notif */ struct iwl_mld { /* Add here fields that need clean up on restart */ @@ -214,7 +214,7 @@ struct iwl_mld { bool netdetect; #endif /* CONFIG_PM_SLEEP */ struct ieee80211_vif *p2p_device_vif; - struct iwl_bt_coex_profile_notif last_bt_notif; + bool bt_is_active; ); struct ieee80211_link_sta __rcu *fw_id_to_link_sta[IWL_STATION_COUNT_MAX]; /* And here fields that survive a fw restart */ diff --git a/drivers/net/wireless/intel/iwlwifi/mld/mlo.c b/drivers/net/wireless/intel/iwlwifi/mld/mlo.c index d002d2772a1da..e57f5388fe772 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/mlo.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/mlo.c @@ -689,40 +689,6 @@ s8 iwl_mld_get_emlsr_rssi_thresh(struct iwl_mld *mld, #undef RSSI_THRESHOLD } -#define IWL_MLD_BT_COEX_DISABLE_EMLSR_RSSI_THRESH -69 -#define IWL_MLD_BT_COEX_ENABLE_EMLSR_RSSI_THRESH -63 -#define IWL_MLD_BT_COEX_WIFI_LOSS_THRESH 7 - -static bool -iwl_mld_bt_allows_emlsr(struct iwl_mld *mld, struct ieee80211_bss_conf *link, - bool check_entry) -{ - int bt_penalty, rssi_thresh; - s32 link_rssi; - - if (WARN_ON_ONCE(!link->bss)) - return false; - - link_rssi = MBM_TO_DBM(link->bss->signal); - rssi_thresh = check_entry ? - IWL_MLD_BT_COEX_ENABLE_EMLSR_RSSI_THRESH : - IWL_MLD_BT_COEX_DISABLE_EMLSR_RSSI_THRESH; - /* No valid RSSI - force to take low rssi */ - if (!link_rssi) - link_rssi = rssi_thresh - 1; - - if (link_rssi > rssi_thresh) - bt_penalty = max(mld->last_bt_notif.wifi_loss_mid_high_rssi[PHY_BAND_24][0], - mld->last_bt_notif.wifi_loss_mid_high_rssi[PHY_BAND_24][1]); - else - bt_penalty = max(mld->last_bt_notif.wifi_loss_low_rssi[PHY_BAND_24][0], - mld->last_bt_notif.wifi_loss_low_rssi[PHY_BAND_24][1]); - - IWL_DEBUG_EHT(mld, "BT penalty for link-id %0X is %d\n", - link->link_id, bt_penalty); - return bt_penalty < IWL_MLD_BT_COEX_WIFI_LOSS_THRESH; -} - static u32 iwl_mld_emlsr_disallowed_with_link(struct iwl_mld *mld, struct ieee80211_vif *vif, @@ -737,8 +703,7 @@ iwl_mld_emlsr_disallowed_with_link(struct iwl_mld *mld, if (WARN_ON_ONCE(!conf)) return IWL_MLD_EMLSR_EXIT_INVALID; - if (link->chandef->chan->band == NL80211_BAND_2GHZ && - !iwl_mld_bt_allows_emlsr(mld, conf, true)) + if (link->chandef->chan->band == NL80211_BAND_2GHZ && mld->bt_is_active) ret |= IWL_MLD_EMLSR_EXIT_BT_COEX; if (link->signal < @@ -1076,41 +1041,30 @@ static void iwl_mld_emlsr_check_bt_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mld_vif *mld_vif = iwl_mld_vif_from_mac80211(vif); - const struct iwl_bt_coex_profile_notif zero_notif = {}; struct iwl_mld *mld = mld_vif->mld; struct ieee80211_bss_conf *link; unsigned int link_id; - const struct iwl_bt_coex_profile_notif *notif = &mld->last_bt_notif; if (!iwl_mld_vif_has_emlsr_cap(vif)) return; - /* zeroed structure means that BT is OFF */ - if (!memcmp(notif, &zero_notif, sizeof(*notif))) { + if (!mld->bt_is_active) { iwl_mld_retry_emlsr(mld, vif); return; } - for_each_vif_active_link(vif, link, link_id) { - bool emlsr_active, emlsr_allowed; + /* BT is turned ON but we are not in EMLSR, nothing to do */ + if (!iwl_mld_emlsr_active(vif)) + return; - if (WARN_ON(!link->chanreq.oper.chan)) - continue; + /* In EMLSR and BT is turned ON */ - if (link->chanreq.oper.chan->band != NL80211_BAND_2GHZ) + for_each_vif_active_link(vif, link, link_id) { + if (WARN_ON(!link->chanreq.oper.chan)) continue; - emlsr_active = iwl_mld_emlsr_active(vif); - emlsr_allowed = iwl_mld_bt_allows_emlsr(mld, link, - !emlsr_active); - if (emlsr_allowed && !emlsr_active) { - iwl_mld_retry_emlsr(mld, vif); - return; - } - - if (!emlsr_allowed && emlsr_active) { - iwl_mld_exit_emlsr(mld, vif, - IWL_MLD_EMLSR_EXIT_BT_COEX, + if (link->chanreq.oper.chan->band == NL80211_BAND_2GHZ) { + iwl_mld_exit_emlsr(mld, vif, IWL_MLD_EMLSR_EXIT_BT_COEX, iwl_mld_get_primary_link(vif)); return; } diff --git a/drivers/net/wireless/intel/iwlwifi/mld/tests/link-selection.c b/drivers/net/wireless/intel/iwlwifi/mld/tests/link-selection.c index 94a037bec1fa8..766c24db36137 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/tests/link-selection.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/tests/link-selection.c @@ -287,7 +287,6 @@ static void test_iwl_mld_link_pair_allows_emlsr(struct kunit *test) const struct link_pair_case *params = test->param_value; struct iwl_mld *mld = test->priv; struct ieee80211_vif *vif; - struct ieee80211_bss_conf *link; /* link A is the primary and link B is the secondary */ struct iwl_mld_link_sel_data a = { .chandef = params->chandef_a, @@ -311,11 +310,6 @@ static void test_iwl_mld_link_pair_allows_emlsr(struct kunit *test) wiphy_lock(mld->wiphy); - link = wiphy_dereference(mld->wiphy, vif->link_conf[a.link_id]); - KUNIT_ALLOC_AND_ASSERT(test, link->bss); - link = wiphy_dereference(mld->wiphy, vif->link_conf[b.link_id]); - KUNIT_ALLOC_AND_ASSERT(test, link->bss); - /* Simulate channel load */ if (params->primary_link_active) { struct iwl_mld_phy *phy =