/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * Copyright (C) 2024-2025 Intel Corporation */ #ifndef __iwl_mld_iface_h__ #define __iwl_mld_iface_h__ #include <net/mac80211.h> #include "link.h" #include "session-protect.h" #include "d3.h" #include "fw/api/time-event.h" enum iwl_mld_cca_40mhz_wa_status { CCA_40_MHZ_WA_NONE, CCA_40_MHZ_WA_RESET, CCA_40_MHZ_WA_RECONNECT, }; /** * enum iwl_mld_emlsr_blocked - defines reasons for which EMLSR is blocked * * These blocks are applied/stored per-VIF. * * @IWL_MLD_EMLSR_BLOCKED_PREVENTION: Prevent repeated EMLSR enter/exit * @IWL_MLD_EMLSR_BLOCKED_WOWLAN: WOWLAN is preventing EMLSR * @IWL_MLD_EMLSR_BLOCKED_ROC: remain-on-channel is preventing EMLSR * @IWL_MLD_EMLSR_BLOCKED_NON_BSS: An active non-BSS interface's link is * preventing EMLSR * @IWL_MLD_EMLSR_BLOCKED_TMP_NON_BSS: An expected active non-BSS interface's * link is preventing EMLSR. This is a temporary blocking that is set when * there is an indication that a non-BSS interface is to be added. * @IWL_MLD_EMLSR_BLOCKED_TPT: throughput is too low to make EMLSR worthwhile * @IWL_MLD_EMLSR_BLOCKED_NAN: NAN is preventing EMLSR. */ enum iwl_mld_emlsr_blocked { IWL_MLD_EMLSR_BLOCKED_PREVENTION = 0x1, IWL_MLD_EMLSR_BLOCKED_WOWLAN = 0x2, IWL_MLD_EMLSR_BLOCKED_ROC = 0x4, IWL_MLD_EMLSR_BLOCKED_NON_BSS = 0x8, IWL_MLD_EMLSR_BLOCKED_TMP_NON_BSS = 0x10, IWL_MLD_EMLSR_BLOCKED_TPT = 0x20, IWL_MLD_EMLSR_BLOCKED_NAN = 0x40, }; /** * enum iwl_mld_emlsr_exit - defines reasons for exiting EMLSR * * Reasons to exit EMLSR may be either link specific or even specific to a * combination of links. * * @IWL_MLD_EMLSR_EXIT_BLOCK: Exit due to a block reason being set * @IWL_MLD_EMLSR_EXIT_MISSED_BEACON: Exit due to missed beacons * @IWL_MLD_EMLSR_EXIT_FAIL_ENTRY: FW failed to enter EMLSR * @IWL_MLD_EMLSR_EXIT_CSA: EMLSR prevented due to channel switch on link * @IWL_MLD_EMLSR_EXIT_EQUAL_BAND: EMLSR prevented as both links share the band * @IWL_MLD_EMLSR_EXIT_LOW_RSSI: Link RSSI is unsuitable for EMLSR * @IWL_MLD_EMLSR_EXIT_LINK_USAGE: Exit EMLSR due to low TPT on secondary link * @IWL_MLD_EMLSR_EXIT_BT_COEX: Exit EMLSR due to BT coexistence * @IWL_MLD_EMLSR_EXIT_CHAN_LOAD: Exit EMLSR because the primary channel is not * loaded enough to justify EMLSR. * @IWL_MLD_EMLSR_EXIT_RFI: Exit EMLSR due to RFI * @IWL_MLD_EMLSR_EXIT_FW_REQUEST: Exit EMLSR because the FW requested it * @IWL_MLD_EMLSR_EXIT_INVALID: internal exit reason due to invalid data */ enum iwl_mld_emlsr_exit { IWL_MLD_EMLSR_EXIT_BLOCK = 0x1, IWL_MLD_EMLSR_EXIT_MISSED_BEACON = 0x2, IWL_MLD_EMLSR_EXIT_FAIL_ENTRY = 0x4, IWL_MLD_EMLSR_EXIT_CSA = 0x8, IWL_MLD_EMLSR_EXIT_EQUAL_BAND = 0x10, IWL_MLD_EMLSR_EXIT_LOW_RSSI = 0x20, IWL_MLD_EMLSR_EXIT_LINK_USAGE = 0x40, IWL_MLD_EMLSR_EXIT_BT_COEX = 0x80, IWL_MLD_EMLSR_EXIT_CHAN_LOAD = 0x100, IWL_MLD_EMLSR_EXIT_RFI = 0x200, IWL_MLD_EMLSR_EXIT_FW_REQUEST = 0x400, IWL_MLD_EMLSR_EXIT_INVALID = 0x800, }; /** * struct iwl_mld_emlsr - per-VIF data about EMLSR operation * * @primary: The current primary link * @selected_primary: Primary link as selected during the last link selection * @selected_links: Links as selected during the last link selection * @blocked_reasons: Reasons preventing EMLSR from being enabled * @last_exit_reason: Reason for the last EMLSR exit * @last_exit_ts: Time of the last EMLSR exit (if @last_exit_reason is non-zero) * @exit_repeat_count: Number of times EMLSR was exited for the same reason * @last_entry_ts: the time of the last EMLSR entry (if iwl_mld_emlsr_active() * is true) * @unblock_tpt_wk: Unblock EMLSR because the throughput limit was reached * @check_tpt_wk: a worker to check if IWL_MLD_EMLSR_BLOCKED_TPT should be * added, for example if there is no longer enough traffic. * @prevent_done_wk: Worker to remove %IWL_MLD_EMLSR_BLOCKED_PREVENTION * @tmp_non_bss_done_wk: Worker to remove %IWL_MLD_EMLSR_BLOCKED_TMP_NON_BSS */ struct iwl_mld_emlsr { struct_group(zeroed_on_not_authorized, u8 primary; u8 selected_primary; u16 selected_links; enum iwl_mld_emlsr_blocked blocked_reasons; enum iwl_mld_emlsr_exit last_exit_reason; unsigned long last_exit_ts; u8 exit_repeat_count; unsigned long last_entry_ts; ); struct wiphy_work unblock_tpt_wk; struct wiphy_delayed_work check_tpt_wk; struct wiphy_delayed_work prevent_done_wk; struct wiphy_delayed_work tmp_non_bss_done_wk; }; /** * struct iwl_mld_vif - virtual interface (MAC context) configuration parameters * * @fw_id: fw id of the mac context. * @session_protect: session protection parameters * @ap_sta: pointer to AP sta, for easier access to it. * Relevant only for STA vifs. * @authorized: indicates the AP station was set to authorized * @num_associated_stas: number of associated STAs. Relevant only for AP mode. * @ap_ibss_active: whether the AP/IBSS was started * @cca_40mhz_workaround: When we are connected in 2.4 GHz and 40 MHz, and the * environment is too loaded, we work around this by reconnecting to the * same AP with 20 MHz. This manages the status of the workaround. * @beacon_inject_active: indicates an active debugfs beacon ie injection * @low_latency_causes: bit flags, indicating the causes for low-latency, * see @iwl_mld_low_latency_cause. * @ps_disabled: indicates that PS is disabled for this interface * @last_link_activation_time: last time a link was activated, for * deferring MLO scans (to make them more reliable) * @mld: pointer to the mld structure. * @deflink: default link data, for use in non-MLO, * @link: reference to link data for each valid link, for use in MLO. * @emlsr: information related to EMLSR * @wowlan_data: data used by the wowlan suspend flow * @use_ps_poll: use ps_poll frames * @disable_bf: disable beacon filter * @dbgfs_slink: debugfs symlink for this interface * @roc_activity: the id of the roc_activity running. Relevant for STA and * p2p device only. Set to %ROC_NUM_ACTIVITIES when not in use. * @aux_sta: station used for remain on channel. Used in P2P device. * @mlo_scan_start_wk: worker to start a deferred MLO scan */ struct iwl_mld_vif { /* Add here fields that need clean up on restart */ struct_group(zeroed_on_hw_restart, u8 fw_id; struct iwl_mld_session_protect session_protect; struct ieee80211_sta *ap_sta; bool authorized; u8 num_associated_stas; bool ap_ibss_active; enum iwl_mld_cca_40mhz_wa_status cca_40mhz_workaround; #ifdef CONFIG_IWLWIFI_DEBUGFS bool beacon_inject_active; #endif u8 low_latency_causes; bool ps_disabled; time64_t last_link_activation_time; ); /* And here fields that survive a fw restart */ struct iwl_mld *mld; struct iwl_mld_link deflink; struct iwl_mld_link __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; struct iwl_mld_emlsr emlsr; #ifdef CONFIG_PM_SLEEP struct iwl_mld_wowlan_data wowlan_data; #endif #ifdef CONFIG_IWLWIFI_DEBUGFS bool use_ps_poll; bool disable_bf; struct dentry *dbgfs_slink; #endif enum iwl_roc_activity roc_activity; struct iwl_mld_int_sta aux_sta; struct wiphy_delayed_work mlo_scan_start_wk; }; static inline struct iwl_mld_vif * iwl_mld_vif_from_mac80211(struct ieee80211_vif *vif) { return (void *)vif->drv_priv; } static inline struct ieee80211_vif * iwl_mld_vif_to_mac80211(struct iwl_mld_vif *mld_vif) { return container_of((void *)mld_vif, struct ieee80211_vif, drv_priv); } #define iwl_mld_link_dereference_check(mld_vif, link_id) \ rcu_dereference_check((mld_vif)->link[link_id], \ lockdep_is_held(&mld_vif->mld->wiphy->mtx)) #define for_each_mld_vif_valid_link(mld_vif, mld_link) \ for (int link_id = 0; link_id < ARRAY_SIZE((mld_vif)->link); \ link_id++) \ if ((mld_link = iwl_mld_link_dereference_check(mld_vif, link_id))) /* Retrieve pointer to mld link from mac80211 structures */ static inline struct iwl_mld_link * iwl_mld_link_from_mac80211(struct ieee80211_bss_conf *bss_conf) { struct iwl_mld_vif *mld_vif = iwl_mld_vif_from_mac80211(bss_conf->vif); return iwl_mld_link_dereference_check(mld_vif, bss_conf->link_id); } int iwl_mld_mac80211_iftype_to_fw(const struct ieee80211_vif *vif); /* Cleanup function for struct iwl_mld_vif, will be called in restart */ void iwl_mld_cleanup_vif(void *data, u8 *mac, struct ieee80211_vif *vif); int iwl_mld_mac_fw_action(struct iwl_mld *mld, struct ieee80211_vif *vif, u32 action); int iwl_mld_add_vif(struct iwl_mld *mld, struct ieee80211_vif *vif); void iwl_mld_rm_vif(struct iwl_mld *mld, struct ieee80211_vif *vif); void iwl_mld_set_vif_associated(struct iwl_mld *mld, struct ieee80211_vif *vif); u8 iwl_mld_get_fw_bss_vifs_ids(struct iwl_mld *mld); void iwl_mld_handle_probe_resp_data_notif(struct iwl_mld *mld, struct iwl_rx_packet *pkt); void iwl_mld_handle_datapath_monitor_notif(struct iwl_mld *mld, struct iwl_rx_packet *pkt); void iwl_mld_handle_uapsd_misbehaving_ap_notif(struct iwl_mld *mld, struct iwl_rx_packet *pkt); void iwl_mld_reset_cca_40mhz_workaround(struct iwl_mld *mld, struct ieee80211_vif *vif); static inline bool iwl_mld_vif_low_latency(const struct iwl_mld_vif *mld_vif) { return !!mld_vif->low_latency_causes; } struct ieee80211_vif *iwl_mld_get_bss_vif(struct iwl_mld *mld); #endif /* __iwl_mld_iface_h__ */
