diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mld/link.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mld/link.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/link.h b/drivers/net/wireless/intel/iwlwifi/mld/link.h new file mode 100644 index 000000000000..42b7bdcbd741 --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mld/link.h @@ -0,0 +1,153 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2024-2025 Intel Corporation + */ +#ifndef __iwl_mld_link_h__ +#define __iwl_mld_link_h__ + +#include <net/mac80211.h> + +#include "mld.h" +#include "sta.h" + +/** + * struct iwl_probe_resp_data - data for NoA/CSA updates + * @rcu_head: used for freeing the data on update + * @notif: notification data + * @noa_len: length of NoA attribute, calculated from the notification + */ +struct iwl_probe_resp_data { + struct rcu_head rcu_head; + struct iwl_probe_resp_data_notif notif; + int noa_len; +}; + +/** + * struct iwl_mld_link - link configuration parameters + * + * @rcu_head: RCU head for freeing this data. + * @fw_id: the fw id of the link. + * @active: if the link is active or not. + * @queue_params: QoS data from mac80211. This is updated with a call to + * drv_conf_tx per each AC, and then notified once with BSS_CHANGED_QOS. + * So we store it here and then send one link cmd for all the ACs. + * @chan_ctx: pointer to the channel context assigned to the link. If a link + * has an assigned channel context it means that it is active. + * @he_ru_2mhz_block: 26-tone RU OFDMA transmissions should be blocked. + * @igtk: fw can only have one IGTK at a time, whereas mac80211 can have two. + * This tracks the one IGTK that currently exists in FW. + * @vif: the vif this link belongs to + * @bcast_sta: station used for broadcast packets. Used in AP, GO and IBSS. + * @mcast_sta: station used for multicast packets. Used in AP, GO and IBSS. + * @aux_sta: station used for remain on channel. Used in P2P device. + * @link_id: over the air link ID + * @ap_early_keys: The firmware cannot install keys before bcast/mcast STAs, + * but higher layers work differently, so we store the keys here for + * later installation. + * @silent_deactivation: next deactivation needs to be silent. + * @probe_resp_data: data from FW notification to store NOA related data to be + * inserted into probe response. + * @rx_omi: data for BW reduction with OMI + * @rx_omi.bw_in_progress: update is in progress (indicates target BW) + * @rx_omi.exit_ts: timestamp of last exit + * @rx_omi.finished_work: work for the delayed reaction to the firmware saying + * the change was applied, and for then applying a new mode if it was + * updated while waiting for firmware/AP settle delay. + * @rx_omi.desired_bw: desired bandwidth + * @rx_omi.last_max_bw: last maximum BW used by firmware, for AP BW changes + */ +struct iwl_mld_link { + struct rcu_head rcu_head; + + /* Add here fields that need clean up on restart */ + struct_group(zeroed_on_hw_restart, + u8 fw_id; + bool active; + struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS]; + struct ieee80211_chanctx_conf __rcu *chan_ctx; + bool he_ru_2mhz_block; + struct ieee80211_key_conf *igtk; + ); + /* And here fields that survive a fw restart */ + struct ieee80211_vif *vif; + struct iwl_mld_int_sta bcast_sta; + struct iwl_mld_int_sta mcast_sta; + struct iwl_mld_int_sta aux_sta; + u8 link_id; + + struct { + struct wiphy_delayed_work finished_work; + unsigned long exit_ts; + enum ieee80211_sta_rx_bandwidth bw_in_progress, + desired_bw, + last_max_bw; + } rx_omi; + + /* we can only have 2 GTK + 2 IGTK + 2 BIGTK active at a time */ + struct ieee80211_key_conf *ap_early_keys[6]; + bool silent_deactivation; + struct iwl_probe_resp_data __rcu *probe_resp_data; +}; + +/* Cleanup function for struct iwl_mld_phy, will be called in restart */ +static inline void +iwl_mld_cleanup_link(struct iwl_mld *mld, struct iwl_mld_link *link) +{ + struct iwl_probe_resp_data *probe_data; + + probe_data = wiphy_dereference(mld->wiphy, link->probe_resp_data); + RCU_INIT_POINTER(link->probe_resp_data, NULL); + if (probe_data) + kfree_rcu(probe_data, rcu_head); + + CLEANUP_STRUCT(link); + if (link->bcast_sta.sta_id != IWL_INVALID_STA) + iwl_mld_free_internal_sta(mld, &link->bcast_sta); + if (link->mcast_sta.sta_id != IWL_INVALID_STA) + iwl_mld_free_internal_sta(mld, &link->mcast_sta); + if (link->aux_sta.sta_id != IWL_INVALID_STA) + iwl_mld_free_internal_sta(mld, &link->aux_sta); +} + +/* Convert a percentage from [0,100] to [0,255] */ +#define NORMALIZE_PERCENT_TO_255(percentage) ((percentage) * 256 / 100) + +int iwl_mld_add_link(struct iwl_mld *mld, + struct ieee80211_bss_conf *bss_conf); +void iwl_mld_remove_link(struct iwl_mld *mld, + struct ieee80211_bss_conf *bss_conf); +int iwl_mld_activate_link(struct iwl_mld *mld, + struct ieee80211_bss_conf *link); +void iwl_mld_deactivate_link(struct iwl_mld *mld, + struct ieee80211_bss_conf *link); +int iwl_mld_change_link_omi_bw(struct iwl_mld *mld, + struct ieee80211_bss_conf *link, + enum ieee80211_sta_rx_bandwidth bw); +int iwl_mld_change_link_in_fw(struct iwl_mld *mld, + struct ieee80211_bss_conf *link, u32 changes); +void iwl_mld_handle_missed_beacon_notif(struct iwl_mld *mld, + struct iwl_rx_packet *pkt); +bool iwl_mld_cancel_missed_beacon_notif(struct iwl_mld *mld, + struct iwl_rx_packet *pkt, + u32 removed_link_id); +int iwl_mld_link_set_associated(struct iwl_mld *mld, struct ieee80211_vif *vif, + struct ieee80211_bss_conf *link); + +unsigned int iwl_mld_get_link_grade(struct iwl_mld *mld, + struct ieee80211_bss_conf *link_conf); + +unsigned int iwl_mld_get_chan_load(struct iwl_mld *mld, + struct ieee80211_bss_conf *link_conf); + +int iwl_mld_get_chan_load_by_others(struct iwl_mld *mld, + struct ieee80211_bss_conf *link_conf, + bool expect_active_link); +void iwl_mld_handle_omi_status_notif(struct iwl_mld *mld, + struct iwl_rx_packet *pkt); +void iwl_mld_leave_omi_bw_reduction(struct iwl_mld *mld); +void iwl_mld_check_omi_bw_reduction(struct iwl_mld *mld); +void iwl_mld_omi_ap_changed_bw(struct iwl_mld *mld, + struct ieee80211_bss_conf *link_conf, + enum ieee80211_sta_rx_bandwidth bw); + +#endif /* __iwl_mld_link_h__ */ |