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1593 lines
48 KiB
1593 lines
48 KiB
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
|
/* |
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* Copyright (C) 2012-2014, 2018-2020 Intel Corporation |
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* Copyright (C) 2013-2014 Intel Mobile Communications GmbH |
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* Copyright (C) 2015-2017 Intel Deutschland GmbH |
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*/ |
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#include <linux/etherdevice.h> |
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#include <linux/crc32.h> |
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#include <net/mac80211.h> |
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#include "iwl-io.h" |
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#include "iwl-prph.h" |
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#include "fw-api.h" |
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#include "mvm.h" |
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#include "time-event.h" |
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|
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const u8 iwl_mvm_ac_to_tx_fifo[] = { |
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IWL_MVM_TX_FIFO_VO, |
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IWL_MVM_TX_FIFO_VI, |
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IWL_MVM_TX_FIFO_BE, |
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IWL_MVM_TX_FIFO_BK, |
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}; |
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|
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const u8 iwl_mvm_ac_to_gen2_tx_fifo[] = { |
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IWL_GEN2_EDCA_TX_FIFO_VO, |
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IWL_GEN2_EDCA_TX_FIFO_VI, |
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IWL_GEN2_EDCA_TX_FIFO_BE, |
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IWL_GEN2_EDCA_TX_FIFO_BK, |
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IWL_GEN2_TRIG_TX_FIFO_VO, |
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IWL_GEN2_TRIG_TX_FIFO_VI, |
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IWL_GEN2_TRIG_TX_FIFO_BE, |
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IWL_GEN2_TRIG_TX_FIFO_BK, |
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}; |
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|
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struct iwl_mvm_mac_iface_iterator_data { |
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struct iwl_mvm *mvm; |
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struct ieee80211_vif *vif; |
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unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; |
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unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; |
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enum iwl_tsf_id preferred_tsf; |
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bool found_vif; |
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}; |
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|
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static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, |
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struct ieee80211_vif *vif) |
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{ |
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struct iwl_mvm_mac_iface_iterator_data *data = _data; |
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
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u16 min_bi; |
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|
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/* Skip the interface for which we are trying to assign a tsf_id */ |
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if (vif == data->vif) |
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return; |
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|
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/* |
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* The TSF is a hardware/firmware resource, there are 4 and |
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* the driver should assign and free them as needed. However, |
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* there are cases where 2 MACs should share the same TSF ID |
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* for the purpose of clock sync, an optimization to avoid |
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* clock drift causing overlapping TBTTs/DTIMs for a GO and |
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* client in the system. |
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* |
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* The firmware will decide according to the MAC type which |
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* will be the leader and follower. Clients that need to sync |
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* with a remote station will be the leader, and an AP or GO |
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* will be the follower. |
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* |
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* Depending on the new interface type it can be following |
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* or become the leader of an existing interface. |
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*/ |
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switch (data->vif->type) { |
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case NL80211_IFTYPE_STATION: |
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/* |
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* The new interface is a client, so if the one we're iterating |
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* is an AP, and the beacon interval of the AP is a multiple or |
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* divisor of the beacon interval of the client, the same TSF |
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* should be used to avoid drift between the new client and |
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* existing AP. The existing AP will get drift updates from the |
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* new client context in this case. |
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*/ |
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if (vif->type != NL80211_IFTYPE_AP || |
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data->preferred_tsf != NUM_TSF_IDS || |
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!test_bit(mvmvif->tsf_id, data->available_tsf_ids)) |
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break; |
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|
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min_bi = min(data->vif->bss_conf.beacon_int, |
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vif->bss_conf.beacon_int); |
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|
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if (!min_bi) |
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break; |
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|
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if ((data->vif->bss_conf.beacon_int - |
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vif->bss_conf.beacon_int) % min_bi == 0) { |
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data->preferred_tsf = mvmvif->tsf_id; |
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return; |
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} |
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break; |
|
|
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case NL80211_IFTYPE_AP: |
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/* |
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* The new interface is AP/GO, so if its beacon interval is a |
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* multiple or a divisor of the beacon interval of an existing |
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* interface, it should get drift updates from an existing |
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* client or use the same TSF as an existing GO. There's no |
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* drift between TSFs internally but if they used different |
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* TSFs then a new client MAC could update one of them and |
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* cause drift that way. |
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*/ |
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if ((vif->type != NL80211_IFTYPE_AP && |
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vif->type != NL80211_IFTYPE_STATION) || |
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data->preferred_tsf != NUM_TSF_IDS || |
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!test_bit(mvmvif->tsf_id, data->available_tsf_ids)) |
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break; |
|
|
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min_bi = min(data->vif->bss_conf.beacon_int, |
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vif->bss_conf.beacon_int); |
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|
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if (!min_bi) |
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break; |
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|
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if ((data->vif->bss_conf.beacon_int - |
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vif->bss_conf.beacon_int) % min_bi == 0) { |
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data->preferred_tsf = mvmvif->tsf_id; |
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return; |
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} |
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break; |
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default: |
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/* |
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* For all other interface types there's no need to |
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* take drift into account. Either they're exclusive |
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* like IBSS and monitor, or we don't care much about |
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* their TSF (like P2P Device), but we won't be able |
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* to share the TSF resource. |
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*/ |
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break; |
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} |
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|
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/* |
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* Unless we exited above, we can't share the TSF resource |
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* that the virtual interface we're iterating over is using |
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* with the new one, so clear the available bit and if this |
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* was the preferred one, reset that as well. |
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*/ |
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__clear_bit(mvmvif->tsf_id, data->available_tsf_ids); |
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|
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if (data->preferred_tsf == mvmvif->tsf_id) |
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data->preferred_tsf = NUM_TSF_IDS; |
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} |
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|
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static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, |
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struct ieee80211_vif *vif) |
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{ |
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struct iwl_mvm_mac_iface_iterator_data *data = _data; |
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
|
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/* Iterator may already find the interface being added -- skip it */ |
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if (vif == data->vif) { |
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data->found_vif = true; |
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return; |
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} |
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|
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/* Mark MAC IDs as used by clearing the available bit, and |
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* (below) mark TSFs as used if their existing use is not |
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* compatible with the new interface type. |
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* No locking or atomic bit operations are needed since the |
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* data is on the stack of the caller function. |
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*/ |
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__clear_bit(mvmvif->id, data->available_mac_ids); |
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|
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/* find a suitable tsf_id */ |
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iwl_mvm_mac_tsf_id_iter(_data, mac, vif); |
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} |
|
|
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void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, |
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struct ieee80211_vif *vif) |
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{ |
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
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struct iwl_mvm_mac_iface_iterator_data data = { |
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.mvm = mvm, |
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.vif = vif, |
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.available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, |
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/* no preference yet */ |
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.preferred_tsf = NUM_TSF_IDS, |
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}; |
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|
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ieee80211_iterate_active_interfaces_atomic( |
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mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, |
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iwl_mvm_mac_tsf_id_iter, &data); |
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|
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if (data.preferred_tsf != NUM_TSF_IDS) |
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mvmvif->tsf_id = data.preferred_tsf; |
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else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) |
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mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, |
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NUM_TSF_IDS); |
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} |
|
|
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int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
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{ |
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
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struct iwl_mvm_mac_iface_iterator_data data = { |
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.mvm = mvm, |
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.vif = vif, |
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.available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, |
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.available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, |
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/* no preference yet */ |
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.preferred_tsf = NUM_TSF_IDS, |
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.found_vif = false, |
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}; |
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int ret, i; |
|
|
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lockdep_assert_held(&mvm->mutex); |
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|
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/* |
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* Allocate a MAC ID and a TSF for this MAC, along with the queues |
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* and other resources. |
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*/ |
|
|
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/* |
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* Before the iterator, we start with all MAC IDs and TSFs available. |
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* |
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* During iteration, all MAC IDs are cleared that are in use by other |
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* virtual interfaces, and all TSF IDs are cleared that can't be used |
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* by this new virtual interface because they're used by an interface |
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* that can't share it with the new one. |
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* At the same time, we check if there's a preferred TSF in the case |
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* that we should share it with another interface. |
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*/ |
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|
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/* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ |
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switch (vif->type) { |
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case NL80211_IFTYPE_ADHOC: |
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break; |
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case NL80211_IFTYPE_STATION: |
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if (!vif->p2p) |
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break; |
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fallthrough; |
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default: |
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__clear_bit(0, data.available_mac_ids); |
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} |
|
|
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ieee80211_iterate_active_interfaces_atomic( |
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mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, |
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iwl_mvm_mac_iface_iterator, &data); |
|
|
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/* |
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* In the case we're getting here during resume, it's similar to |
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* firmware restart, and with RESUME_ALL the iterator will find |
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* the vif being added already. |
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* We don't want to reassign any IDs in either case since doing |
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* so would probably assign different IDs (as interfaces aren't |
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* necessarily added in the same order), but the old IDs were |
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* preserved anyway, so skip ID assignment for both resume and |
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* recovery. |
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*/ |
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if (data.found_vif) |
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return 0; |
|
|
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/* Therefore, in recovery, we can't get here */ |
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if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) |
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return -EBUSY; |
|
|
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mvmvif->id = find_first_bit(data.available_mac_ids, |
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NUM_MAC_INDEX_DRIVER); |
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if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { |
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IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); |
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ret = -EIO; |
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goto exit_fail; |
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} |
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|
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if (data.preferred_tsf != NUM_TSF_IDS) |
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mvmvif->tsf_id = data.preferred_tsf; |
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else |
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mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, |
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NUM_TSF_IDS); |
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if (mvmvif->tsf_id == NUM_TSF_IDS) { |
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IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); |
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ret = -EIO; |
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goto exit_fail; |
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} |
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|
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mvmvif->color = 0; |
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|
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INIT_LIST_HEAD(&mvmvif->time_event_data.list); |
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mvmvif->time_event_data.id = TE_MAX; |
|
|
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/* No need to allocate data queues to P2P Device MAC and NAN.*/ |
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if (vif->type == NL80211_IFTYPE_P2P_DEVICE) |
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return 0; |
|
|
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/* Allocate the CAB queue for softAP and GO interfaces */ |
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if (vif->type == NL80211_IFTYPE_AP || |
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vif->type == NL80211_IFTYPE_ADHOC) { |
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/* |
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* For TVQM this will be overwritten later with the FW assigned |
|
* queue value (when queue is enabled). |
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*/ |
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mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; |
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} |
|
|
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mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; |
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mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; |
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mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; |
|
|
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for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) |
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mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; |
|
|
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return 0; |
|
|
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exit_fail: |
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memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); |
|
return ret; |
|
} |
|
|
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static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, |
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struct ieee80211_vif *vif, |
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enum nl80211_band band, |
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u8 *cck_rates, u8 *ofdm_rates) |
|
{ |
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struct ieee80211_supported_band *sband; |
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unsigned long basic = vif->bss_conf.basic_rates; |
|
int lowest_present_ofdm = 100; |
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int lowest_present_cck = 100; |
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u8 cck = 0; |
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u8 ofdm = 0; |
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int i; |
|
|
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sband = mvm->hw->wiphy->bands[band]; |
|
|
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for_each_set_bit(i, &basic, BITS_PER_LONG) { |
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int hw = sband->bitrates[i].hw_value; |
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if (hw >= IWL_FIRST_OFDM_RATE) { |
|
ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); |
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if (lowest_present_ofdm > hw) |
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lowest_present_ofdm = hw; |
|
} else { |
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BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); |
|
|
|
cck |= BIT(hw); |
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if (lowest_present_cck > hw) |
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lowest_present_cck = hw; |
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} |
|
} |
|
|
|
/* |
|
* Now we've got the basic rates as bitmaps in the ofdm and cck |
|
* variables. This isn't sufficient though, as there might not |
|
* be all the right rates in the bitmap. E.g. if the only basic |
|
* rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps |
|
* and 6 Mbps because the 802.11-2007 standard says in 9.6: |
|
* |
|
* [...] a STA responding to a received frame shall transmit |
|
* its Control Response frame [...] at the highest rate in the |
|
* BSSBasicRateSet parameter that is less than or equal to the |
|
* rate of the immediately previous frame in the frame exchange |
|
* sequence ([...]) and that is of the same modulation class |
|
* ([...]) as the received frame. If no rate contained in the |
|
* BSSBasicRateSet parameter meets these conditions, then the |
|
* control frame sent in response to a received frame shall be |
|
* transmitted at the highest mandatory rate of the PHY that is |
|
* less than or equal to the rate of the received frame, and |
|
* that is of the same modulation class as the received frame. |
|
* |
|
* As a consequence, we need to add all mandatory rates that are |
|
* lower than all of the basic rates to these bitmaps. |
|
*/ |
|
|
|
if (IWL_RATE_24M_INDEX < lowest_present_ofdm) |
|
ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; |
|
if (IWL_RATE_12M_INDEX < lowest_present_ofdm) |
|
ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; |
|
/* 6M already there or needed so always add */ |
|
ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; |
|
|
|
/* |
|
* CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. |
|
* Note, however: |
|
* - if no CCK rates are basic, it must be ERP since there must |
|
* be some basic rates at all, so they're OFDM => ERP PHY |
|
* (or we're in 5 GHz, and the cck bitmap will never be used) |
|
* - if 11M is a basic rate, it must be ERP as well, so add 5.5M |
|
* - if 5.5M is basic, 1M and 2M are mandatory |
|
* - if 2M is basic, 1M is mandatory |
|
* - if 1M is basic, that's the only valid ACK rate. |
|
* As a consequence, it's not as complicated as it sounds, just add |
|
* any lower rates to the ACK rate bitmap. |
|
*/ |
|
if (IWL_RATE_11M_INDEX < lowest_present_cck) |
|
cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; |
|
if (IWL_RATE_5M_INDEX < lowest_present_cck) |
|
cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; |
|
if (IWL_RATE_2M_INDEX < lowest_present_cck) |
|
cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; |
|
/* 1M already there or needed so always add */ |
|
cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; |
|
|
|
*cck_rates = cck; |
|
*ofdm_rates = ofdm; |
|
} |
|
|
|
static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct iwl_mac_ctx_cmd *cmd) |
|
{ |
|
/* for both sta and ap, ht_operation_mode hold the protection_mode */ |
|
u8 protection_mode = vif->bss_conf.ht_operation_mode & |
|
IEEE80211_HT_OP_MODE_PROTECTION; |
|
/* The fw does not distinguish between ht and fat */ |
|
u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; |
|
|
|
IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); |
|
/* |
|
* See section 9.23.3.1 of IEEE 80211-2012. |
|
* Nongreenfield HT STAs Present is not supported. |
|
*/ |
|
switch (protection_mode) { |
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONE: |
|
break; |
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: |
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: |
|
cmd->protection_flags |= cpu_to_le32(ht_flag); |
|
break; |
|
case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: |
|
/* Protect when channel wider than 20MHz */ |
|
if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) |
|
cmd->protection_flags |= cpu_to_le32(ht_flag); |
|
break; |
|
default: |
|
IWL_ERR(mvm, "Illegal protection mode %d\n", |
|
protection_mode); |
|
break; |
|
} |
|
} |
|
|
|
static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct iwl_mac_ctx_cmd *cmd, |
|
const u8 *bssid_override, |
|
u32 action) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct ieee80211_chanctx_conf *chanctx; |
|
bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & |
|
IEEE80211_HT_OP_MODE_PROTECTION); |
|
u8 cck_ack_rates, ofdm_ack_rates; |
|
const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; |
|
int i; |
|
|
|
cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
|
mvmvif->color)); |
|
cmd->action = cpu_to_le32(action); |
|
|
|
switch (vif->type) { |
|
case NL80211_IFTYPE_STATION: |
|
if (vif->p2p) |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); |
|
else |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); |
|
break; |
|
case NL80211_IFTYPE_AP: |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); |
|
break; |
|
case NL80211_IFTYPE_MONITOR: |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); |
|
break; |
|
case NL80211_IFTYPE_P2P_DEVICE: |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); |
|
break; |
|
case NL80211_IFTYPE_ADHOC: |
|
cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); |
|
break; |
|
default: |
|
WARN_ON_ONCE(1); |
|
} |
|
|
|
cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); |
|
|
|
memcpy(cmd->node_addr, vif->addr, ETH_ALEN); |
|
|
|
if (bssid) |
|
memcpy(cmd->bssid_addr, bssid, ETH_ALEN); |
|
else |
|
eth_broadcast_addr(cmd->bssid_addr); |
|
|
|
rcu_read_lock(); |
|
chanctx = rcu_dereference(vif->chanctx_conf); |
|
iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band |
|
: NL80211_BAND_2GHZ, |
|
&cck_ack_rates, &ofdm_ack_rates); |
|
rcu_read_unlock(); |
|
|
|
cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); |
|
cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); |
|
|
|
cmd->cck_short_preamble = |
|
cpu_to_le32(vif->bss_conf.use_short_preamble ? |
|
MAC_FLG_SHORT_PREAMBLE : 0); |
|
cmd->short_slot = |
|
cpu_to_le32(vif->bss_conf.use_short_slot ? |
|
MAC_FLG_SHORT_SLOT : 0); |
|
|
|
cmd->filter_flags = 0; |
|
|
|
for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
|
u8 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, i); |
|
u8 ucode_ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); |
|
|
|
cmd->ac[ucode_ac].cw_min = |
|
cpu_to_le16(mvmvif->queue_params[i].cw_min); |
|
cmd->ac[ucode_ac].cw_max = |
|
cpu_to_le16(mvmvif->queue_params[i].cw_max); |
|
cmd->ac[ucode_ac].edca_txop = |
|
cpu_to_le16(mvmvif->queue_params[i].txop * 32); |
|
cmd->ac[ucode_ac].aifsn = mvmvif->queue_params[i].aifs; |
|
cmd->ac[ucode_ac].fifos_mask = BIT(txf); |
|
} |
|
|
|
if (vif->bss_conf.qos) |
|
cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); |
|
|
|
if (vif->bss_conf.use_cts_prot) |
|
cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); |
|
|
|
IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", |
|
vif->bss_conf.use_cts_prot, |
|
vif->bss_conf.ht_operation_mode); |
|
if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) |
|
cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); |
|
if (ht_enabled) |
|
iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, |
|
struct iwl_mac_ctx_cmd *cmd) |
|
{ |
|
int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
|
sizeof(*cmd), cmd); |
|
if (ret) |
|
IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", |
|
le32_to_cpu(cmd->action), ret); |
|
return ret; |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action, bool force_assoc_off, |
|
const u8 *bssid_override) |
|
{ |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
struct iwl_mac_data_sta *ctxt_sta; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_STATION); |
|
|
|
/* Fill the common data for all mac context types */ |
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); |
|
|
|
if (vif->p2p) { |
|
struct ieee80211_p2p_noa_attr *noa = |
|
&vif->bss_conf.p2p_noa_attr; |
|
|
|
cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & |
|
IEEE80211_P2P_OPPPS_CTWINDOW_MASK); |
|
ctxt_sta = &cmd.p2p_sta.sta; |
|
} else { |
|
ctxt_sta = &cmd.sta; |
|
} |
|
|
|
/* We need the dtim_period to set the MAC as associated */ |
|
if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && |
|
!force_assoc_off) { |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
u8 ap_sta_id = mvmvif->ap_sta_id; |
|
u32 dtim_offs; |
|
|
|
/* |
|
* The DTIM count counts down, so when it is N that means N |
|
* more beacon intervals happen until the DTIM TBTT. Therefore |
|
* add this to the current time. If that ends up being in the |
|
* future, the firmware will handle it. |
|
* |
|
* Also note that the system_timestamp (which we get here as |
|
* "sync_device_ts") and TSF timestamp aren't at exactly the |
|
* same offset in the frame -- the TSF is at the first symbol |
|
* of the TSF, the system timestamp is at signal acquisition |
|
* time. This means there's an offset between them of at most |
|
* a few hundred microseconds (24 * 8 bits + PLCP time gives |
|
* 384us in the longest case), this is currently not relevant |
|
* as the firmware wakes up around 2ms before the TBTT. |
|
*/ |
|
dtim_offs = vif->bss_conf.sync_dtim_count * |
|
vif->bss_conf.beacon_int; |
|
/* convert TU to usecs */ |
|
dtim_offs *= 1024; |
|
|
|
ctxt_sta->dtim_tsf = |
|
cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); |
|
ctxt_sta->dtim_time = |
|
cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); |
|
ctxt_sta->assoc_beacon_arrive_time = |
|
cpu_to_le32(vif->bss_conf.sync_device_ts); |
|
|
|
IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", |
|
le64_to_cpu(ctxt_sta->dtim_tsf), |
|
le32_to_cpu(ctxt_sta->dtim_time), |
|
dtim_offs); |
|
|
|
ctxt_sta->is_assoc = cpu_to_le32(1); |
|
|
|
/* |
|
* allow multicast data frames only as long as the station is |
|
* authorized, i.e., GTK keys are already installed (if needed) |
|
*/ |
|
if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { |
|
struct ieee80211_sta *sta; |
|
|
|
rcu_read_lock(); |
|
|
|
sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); |
|
if (!IS_ERR_OR_NULL(sta)) { |
|
struct iwl_mvm_sta *mvmsta = |
|
iwl_mvm_sta_from_mac80211(sta); |
|
|
|
if (mvmsta->sta_state == |
|
IEEE80211_STA_AUTHORIZED) |
|
cmd.filter_flags |= |
|
cpu_to_le32(MAC_FILTER_ACCEPT_GRP); |
|
} |
|
|
|
rcu_read_unlock(); |
|
} |
|
} else { |
|
ctxt_sta->is_assoc = cpu_to_le32(0); |
|
|
|
/* Allow beacons to pass through as long as we are not |
|
* associated, or we do not have dtim period information. |
|
*/ |
|
cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); |
|
} |
|
|
|
ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); |
|
ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * |
|
vif->bss_conf.dtim_period); |
|
|
|
ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); |
|
ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); |
|
|
|
if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) |
|
cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); |
|
|
|
if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) { |
|
cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX); |
|
if (vif->bss_conf.twt_requester && IWL_MVM_USE_TWT) { |
|
ctxt_sta->data_policy |= cpu_to_le32(TWT_SUPPORTED); |
|
if (vif->bss_conf.twt_protected) |
|
ctxt_sta->data_policy |= |
|
cpu_to_le32(PROTECTED_TWT_SUPPORTED); |
|
} |
|
} |
|
|
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action) |
|
{ |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
u32 tfd_queue_msk = BIT(mvm->snif_queue); |
|
int ret; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); |
|
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
|
|
|
cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | |
|
MAC_FILTER_IN_CONTROL_AND_MGMT | |
|
MAC_FILTER_IN_BEACON | |
|
MAC_FILTER_IN_PROBE_REQUEST | |
|
MAC_FILTER_IN_CRC32 | |
|
MAC_FILTER_ACCEPT_GRP); |
|
ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); |
|
|
|
/* Allocate sniffer station */ |
|
ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, |
|
vif->type, IWL_STA_GENERAL_PURPOSE); |
|
if (ret) |
|
return ret; |
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); |
|
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
|
|
|
cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | |
|
MAC_FILTER_IN_PROBE_REQUEST | |
|
MAC_FILTER_ACCEPT_GRP); |
|
|
|
/* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ |
|
cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); |
|
|
|
/* TODO: Assumes that the beacon id == mac context id */ |
|
cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); |
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
struct iwl_mvm_go_iterator_data { |
|
bool go_active; |
|
}; |
|
|
|
static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) |
|
{ |
|
struct iwl_mvm_go_iterator_data *data = _data; |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
|
|
if (vif->type == NL80211_IFTYPE_AP && vif->p2p && |
|
mvmvif->ap_ibss_active) |
|
data->go_active = true; |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action) |
|
{ |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
struct iwl_mvm_go_iterator_data data = {}; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); |
|
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
|
|
|
/* Override the filter flags to accept only probe requests */ |
|
cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); |
|
|
|
/* |
|
* This flag should be set to true when the P2P Device is |
|
* discoverable and there is at least another active P2P GO. Settings |
|
* this flag will allow the P2P Device to be discoverable on other |
|
* channels in addition to its listen channel. |
|
* Note that this flag should not be set in other cases as it opens the |
|
* Rx filters on all MAC and increases the number of interrupts. |
|
*/ |
|
ieee80211_iterate_active_interfaces_atomic( |
|
mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, |
|
iwl_mvm_go_iterator, &data); |
|
|
|
cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); |
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, |
|
__le32 *tim_index, __le32 *tim_size, |
|
u8 *beacon, u32 frame_size) |
|
{ |
|
u32 tim_idx; |
|
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; |
|
|
|
/* The index is relative to frame start but we start looking at the |
|
* variable-length part of the beacon. */ |
|
tim_idx = mgmt->u.beacon.variable - beacon; |
|
|
|
/* Parse variable-length elements of beacon to find WLAN_EID_TIM */ |
|
while ((tim_idx < (frame_size - 2)) && |
|
(beacon[tim_idx] != WLAN_EID_TIM)) |
|
tim_idx += beacon[tim_idx+1] + 2; |
|
|
|
/* If TIM field was found, set variables */ |
|
if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { |
|
*tim_index = cpu_to_le32(tim_idx); |
|
*tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); |
|
} else { |
|
IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); |
|
} |
|
} |
|
|
|
static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) |
|
{ |
|
struct ieee80211_mgmt *mgmt = (void *)beacon; |
|
const u8 *ie; |
|
|
|
if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) |
|
return 0; |
|
|
|
frame_size -= mgmt->u.beacon.variable - beacon; |
|
|
|
ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); |
|
if (!ie) |
|
return 0; |
|
|
|
return ie - beacon; |
|
} |
|
|
|
u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info, |
|
struct ieee80211_vif *vif) |
|
{ |
|
u8 rate; |
|
if (info->band == NL80211_BAND_2GHZ && !vif->p2p) |
|
rate = IWL_FIRST_CCK_RATE; |
|
else |
|
rate = IWL_FIRST_OFDM_RATE; |
|
|
|
return rate; |
|
} |
|
|
|
static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct sk_buff *beacon, |
|
struct iwl_tx_cmd *tx) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct ieee80211_tx_info *info; |
|
u8 rate; |
|
u32 tx_flags; |
|
|
|
info = IEEE80211_SKB_CB(beacon); |
|
|
|
/* Set up TX command fields */ |
|
tx->len = cpu_to_le16((u16)beacon->len); |
|
tx->sta_id = mvmvif->bcast_sta.sta_id; |
|
tx->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); |
|
tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; |
|
tx_flags |= |
|
iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << |
|
TX_CMD_FLG_BT_PRIO_POS; |
|
tx->tx_flags = cpu_to_le32(tx_flags); |
|
|
|
if (!fw_has_capa(&mvm->fw->ucode_capa, |
|
IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) |
|
iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); |
|
|
|
tx->rate_n_flags = |
|
cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << |
|
RATE_MCS_ANT_POS); |
|
|
|
rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); |
|
|
|
tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); |
|
if (rate == IWL_FIRST_CCK_RATE) |
|
tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); |
|
|
|
} |
|
|
|
int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm, |
|
struct sk_buff *beacon, |
|
void *data, int len) |
|
{ |
|
struct iwl_host_cmd cmd = { |
|
.id = BEACON_TEMPLATE_CMD, |
|
.flags = CMD_ASYNC, |
|
}; |
|
|
|
cmd.len[0] = len; |
|
cmd.data[0] = data; |
|
cmd.dataflags[0] = 0; |
|
cmd.len[1] = beacon->len; |
|
cmd.data[1] = beacon->data; |
|
cmd.dataflags[1] = IWL_HCMD_DFL_DUP; |
|
|
|
return iwl_mvm_send_cmd(mvm, &cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_send_beacon_v6(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct sk_buff *beacon) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct iwl_mac_beacon_cmd_v6 beacon_cmd = {}; |
|
|
|
iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); |
|
|
|
beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); |
|
|
|
if (vif->type == NL80211_IFTYPE_AP) |
|
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, |
|
&beacon_cmd.tim_size, |
|
beacon->data, beacon->len); |
|
|
|
return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, |
|
sizeof(beacon_cmd)); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct sk_buff *beacon) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct iwl_mac_beacon_cmd_v7 beacon_cmd = {}; |
|
|
|
iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); |
|
|
|
beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); |
|
|
|
if (vif->type == NL80211_IFTYPE_AP) |
|
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, |
|
&beacon_cmd.tim_size, |
|
beacon->data, beacon->len); |
|
|
|
beacon_cmd.csa_offset = |
|
cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, |
|
WLAN_EID_CHANNEL_SWITCH, |
|
beacon->len)); |
|
beacon_cmd.ecsa_offset = |
|
cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, |
|
WLAN_EID_EXT_CHANSWITCH_ANN, |
|
beacon->len)); |
|
|
|
return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, |
|
sizeof(beacon_cmd)); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct sk_buff *beacon) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon); |
|
struct iwl_mac_beacon_cmd beacon_cmd = {}; |
|
u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); |
|
u16 flags; |
|
struct ieee80211_chanctx_conf *ctx; |
|
int channel; |
|
|
|
flags = iwl_mvm_mac80211_idx_to_hwrate(rate); |
|
|
|
if (rate == IWL_FIRST_CCK_RATE) |
|
flags |= IWL_MAC_BEACON_CCK; |
|
|
|
/* Enable FILS on PSC channels only */ |
|
rcu_read_lock(); |
|
ctx = rcu_dereference(vif->chanctx_conf); |
|
channel = ieee80211_frequency_to_channel(ctx->def.chan->center_freq); |
|
WARN_ON(channel == 0); |
|
if (cfg80211_channel_is_psc(ctx->def.chan) && |
|
!IWL_MVM_DISABLE_AP_FILS) { |
|
flags |= IWL_MAC_BEACON_FILS; |
|
beacon_cmd.short_ssid = |
|
cpu_to_le32(~crc32_le(~0, vif->bss_conf.ssid, |
|
vif->bss_conf.ssid_len)); |
|
} |
|
rcu_read_unlock(); |
|
|
|
beacon_cmd.flags = cpu_to_le16(flags); |
|
beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); |
|
beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); |
|
|
|
if (vif->type == NL80211_IFTYPE_AP) |
|
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, |
|
&beacon_cmd.tim_size, |
|
beacon->data, beacon->len); |
|
|
|
beacon_cmd.csa_offset = |
|
cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, |
|
WLAN_EID_CHANNEL_SWITCH, |
|
beacon->len)); |
|
beacon_cmd.ecsa_offset = |
|
cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, |
|
WLAN_EID_EXT_CHANSWITCH_ANN, |
|
beacon->len)); |
|
|
|
return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, |
|
sizeof(beacon_cmd)); |
|
} |
|
|
|
int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct sk_buff *beacon) |
|
{ |
|
if (WARN_ON(!beacon)) |
|
return -EINVAL; |
|
|
|
if (IWL_MVM_NON_TRANSMITTING_AP) |
|
return 0; |
|
|
|
if (!fw_has_capa(&mvm->fw->ucode_capa, |
|
IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) |
|
return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon); |
|
|
|
if (fw_has_api(&mvm->fw->ucode_capa, |
|
IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) |
|
return iwl_mvm_mac_ctxt_send_beacon_v9(mvm, vif, beacon); |
|
|
|
return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon); |
|
} |
|
|
|
/* The beacon template for the AP/GO/IBSS has changed and needs update */ |
|
int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif) |
|
{ |
|
struct sk_buff *beacon; |
|
int ret; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_AP && |
|
vif->type != NL80211_IFTYPE_ADHOC); |
|
|
|
beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); |
|
if (!beacon) |
|
return -ENOMEM; |
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUGFS |
|
if (mvm->beacon_inject_active) |
|
return -EBUSY; |
|
#endif |
|
|
|
ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); |
|
dev_kfree_skb(beacon); |
|
return ret; |
|
} |
|
|
|
struct iwl_mvm_mac_ap_iterator_data { |
|
struct iwl_mvm *mvm; |
|
struct ieee80211_vif *vif; |
|
u32 beacon_device_ts; |
|
u16 beacon_int; |
|
}; |
|
|
|
/* Find the beacon_device_ts and beacon_int for a managed interface */ |
|
static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, |
|
struct ieee80211_vif *vif) |
|
{ |
|
struct iwl_mvm_mac_ap_iterator_data *data = _data; |
|
|
|
if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) |
|
return; |
|
|
|
/* Station client has higher priority over P2P client*/ |
|
if (vif->p2p && data->beacon_device_ts) |
|
return; |
|
|
|
data->beacon_device_ts = vif->bss_conf.sync_device_ts; |
|
data->beacon_int = vif->bss_conf.beacon_int; |
|
} |
|
|
|
/* |
|
* Fill the specific data for mac context of type AP of P2P GO |
|
*/ |
|
static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
struct iwl_mac_ctx_cmd *cmd, |
|
struct iwl_mac_data_ap *ctxt_ap, |
|
bool add) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct iwl_mvm_mac_ap_iterator_data data = { |
|
.mvm = mvm, |
|
.vif = vif, |
|
.beacon_device_ts = 0 |
|
}; |
|
|
|
/* in AP mode, the MCAST FIFO takes the EDCA params from VO */ |
|
cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); |
|
|
|
/* |
|
* in AP mode, pass probe requests and beacons from other APs |
|
* (needed for ht protection); when there're no any associated |
|
* station don't ask FW to pass beacons to prevent unnecessary |
|
* wake-ups. |
|
*/ |
|
cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); |
|
if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { |
|
cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); |
|
IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); |
|
} else { |
|
IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); |
|
} |
|
|
|
ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); |
|
ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * |
|
vif->bss_conf.dtim_period); |
|
|
|
if (!fw_has_api(&mvm->fw->ucode_capa, |
|
IWL_UCODE_TLV_API_STA_TYPE)) |
|
ctxt_ap->mcast_qid = cpu_to_le32(mvmvif->cab_queue); |
|
|
|
/* |
|
* Only set the beacon time when the MAC is being added, when we |
|
* just modify the MAC then we should keep the time -- the firmware |
|
* can otherwise have a "jumping" TBTT. |
|
*/ |
|
if (add) { |
|
/* |
|
* If there is a station/P2P client interface which is |
|
* associated, set the AP's TBTT far enough from the station's |
|
* TBTT. Otherwise, set it to the current system time |
|
*/ |
|
ieee80211_iterate_active_interfaces_atomic( |
|
mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, |
|
iwl_mvm_mac_ap_iterator, &data); |
|
|
|
if (data.beacon_device_ts) { |
|
u32 rand = (prandom_u32() % (64 - 36)) + 36; |
|
mvmvif->ap_beacon_time = data.beacon_device_ts + |
|
ieee80211_tu_to_usec(data.beacon_int * rand / |
|
100); |
|
} else { |
|
mvmvif->ap_beacon_time = iwl_mvm_get_systime(mvm); |
|
} |
|
} |
|
|
|
ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); |
|
ctxt_ap->beacon_tsf = 0; /* unused */ |
|
|
|
/* TODO: Assume that the beacon id == mac context id */ |
|
ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action) |
|
{ |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); |
|
|
|
/* Fill the common data for all mac context types */ |
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
|
|
|
/* Fill the data specific for ap mode */ |
|
iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, |
|
action == FW_CTXT_ACTION_ADD); |
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *vif, |
|
u32 action) |
|
{ |
|
struct iwl_mac_ctx_cmd cmd = {}; |
|
struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; |
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); |
|
|
|
/* Fill the common data for all mac context types */ |
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
|
|
|
/* Fill the data specific for GO mode */ |
|
iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, |
|
action == FW_CTXT_ACTION_ADD); |
|
|
|
cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & |
|
IEEE80211_P2P_OPPPS_CTWINDOW_MASK); |
|
cmd.go.opp_ps_enabled = |
|
cpu_to_le32(!!(noa->oppps_ctwindow & |
|
IEEE80211_P2P_OPPPS_ENABLE_BIT)); |
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
|
} |
|
|
|
static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
|
u32 action, bool force_assoc_off, |
|
const u8 *bssid_override) |
|
{ |
|
switch (vif->type) { |
|
case NL80211_IFTYPE_STATION: |
|
return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, |
|
force_assoc_off, |
|
bssid_override); |
|
case NL80211_IFTYPE_AP: |
|
if (!vif->p2p) |
|
return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); |
|
else |
|
return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); |
|
case NL80211_IFTYPE_MONITOR: |
|
return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); |
|
case NL80211_IFTYPE_P2P_DEVICE: |
|
return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); |
|
case NL80211_IFTYPE_ADHOC: |
|
return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); |
|
default: |
|
break; |
|
} |
|
|
|
return -EOPNOTSUPP; |
|
} |
|
|
|
int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
int ret; |
|
|
|
if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", |
|
vif->addr, ieee80211_vif_type_p2p(vif))) |
|
return -EIO; |
|
|
|
ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, |
|
true, NULL); |
|
if (ret) |
|
return ret; |
|
|
|
/* will only do anything at resume from D3 time */ |
|
iwl_mvm_set_last_nonqos_seq(mvm, vif); |
|
|
|
mvmvif->uploaded = true; |
|
return 0; |
|
} |
|
|
|
int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
|
bool force_assoc_off, const u8 *bssid_override) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
|
|
if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", |
|
vif->addr, ieee80211_vif_type_p2p(vif))) |
|
return -EIO; |
|
|
|
return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, |
|
force_assoc_off, bssid_override); |
|
} |
|
|
|
int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
struct iwl_mac_ctx_cmd cmd; |
|
int ret; |
|
|
|
if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", |
|
vif->addr, ieee80211_vif_type_p2p(vif))) |
|
return -EIO; |
|
|
|
memset(&cmd, 0, sizeof(cmd)); |
|
|
|
cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
|
mvmvif->color)); |
|
cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); |
|
|
|
ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
|
sizeof(cmd), &cmd); |
|
if (ret) { |
|
IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
mvmvif->uploaded = false; |
|
|
|
if (vif->type == NL80211_IFTYPE_MONITOR) { |
|
__clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); |
|
iwl_mvm_dealloc_snif_sta(mvm); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, |
|
struct ieee80211_vif *csa_vif, u32 gp2, |
|
bool tx_success) |
|
{ |
|
struct iwl_mvm_vif *mvmvif = |
|
iwl_mvm_vif_from_mac80211(csa_vif); |
|
|
|
/* Don't start to countdown from a failed beacon */ |
|
if (!tx_success && !mvmvif->csa_countdown) |
|
return; |
|
|
|
mvmvif->csa_countdown = true; |
|
|
|
if (!ieee80211_beacon_cntdwn_is_complete(csa_vif)) { |
|
int c = ieee80211_beacon_update_cntdwn(csa_vif); |
|
|
|
iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); |
|
if (csa_vif->p2p && |
|
!iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && |
|
tx_success) { |
|
u32 rel_time = (c + 1) * |
|
csa_vif->bss_conf.beacon_int - |
|
IWL_MVM_CHANNEL_SWITCH_TIME_GO; |
|
u32 apply_time = gp2 + rel_time * 1024; |
|
|
|
iwl_mvm_schedule_csa_period(mvm, csa_vif, |
|
IWL_MVM_CHANNEL_SWITCH_TIME_GO - |
|
IWL_MVM_CHANNEL_SWITCH_MARGIN, |
|
apply_time); |
|
} |
|
} else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { |
|
/* we don't have CSA NoA scheduled yet, switch now */ |
|
ieee80211_csa_finish(csa_vif); |
|
RCU_INIT_POINTER(mvm->csa_vif, NULL); |
|
} |
|
} |
|
|
|
void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); |
|
struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; |
|
struct iwl_extended_beacon_notif_v5 *beacon_v5 = (void *)pkt->data; |
|
struct ieee80211_vif *csa_vif; |
|
struct ieee80211_vif *tx_blocked_vif; |
|
struct agg_tx_status *agg_status; |
|
u16 status; |
|
|
|
lockdep_assert_held(&mvm->mutex); |
|
|
|
mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); |
|
|
|
if (!iwl_mvm_is_short_beacon_notif_supported(mvm)) { |
|
struct iwl_mvm_tx_resp *beacon_notify_hdr = |
|
&beacon_v5->beacon_notify_hdr; |
|
|
|
if (unlikely(pkt_len < sizeof(*beacon_v5))) |
|
return; |
|
|
|
mvm->ibss_manager = beacon_v5->ibss_mgr_status != 0; |
|
agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); |
|
status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; |
|
IWL_DEBUG_RX(mvm, |
|
"beacon status %#x retries:%d tsf:0x%016llX gp2:0x%X rate:%d\n", |
|
status, beacon_notify_hdr->failure_frame, |
|
le64_to_cpu(beacon->tsf), |
|
mvm->ap_last_beacon_gp2, |
|
le32_to_cpu(beacon_notify_hdr->initial_rate)); |
|
} else { |
|
if (unlikely(pkt_len < sizeof(*beacon))) |
|
return; |
|
|
|
mvm->ibss_manager = beacon->ibss_mgr_status != 0; |
|
status = le32_to_cpu(beacon->status) & TX_STATUS_MSK; |
|
IWL_DEBUG_RX(mvm, |
|
"beacon status %#x tsf:0x%016llX gp2:0x%X\n", |
|
status, le64_to_cpu(beacon->tsf), |
|
mvm->ap_last_beacon_gp2); |
|
} |
|
|
|
csa_vif = rcu_dereference_protected(mvm->csa_vif, |
|
lockdep_is_held(&mvm->mutex)); |
|
if (unlikely(csa_vif && csa_vif->csa_active)) |
|
iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, |
|
(status == TX_STATUS_SUCCESS)); |
|
|
|
tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, |
|
lockdep_is_held(&mvm->mutex)); |
|
if (unlikely(tx_blocked_vif)) { |
|
struct iwl_mvm_vif *mvmvif = |
|
iwl_mvm_vif_from_mac80211(tx_blocked_vif); |
|
|
|
/* |
|
* The channel switch is started and we have blocked the |
|
* stations. If this is the first beacon (the timeout wasn't |
|
* set), set the unblock timeout, otherwise countdown |
|
*/ |
|
if (!mvm->csa_tx_block_bcn_timeout) |
|
mvm->csa_tx_block_bcn_timeout = |
|
IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; |
|
else |
|
mvm->csa_tx_block_bcn_timeout--; |
|
|
|
/* Check if the timeout is expired, and unblock tx */ |
|
if (mvm->csa_tx_block_bcn_timeout == 0) { |
|
iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); |
|
RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); |
|
} |
|
} |
|
} |
|
|
|
void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct iwl_missed_beacons_notif *mb = (void *)pkt->data; |
|
struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; |
|
struct iwl_fw_dbg_trigger_tlv *trigger; |
|
u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; |
|
u32 rx_missed_bcon, rx_missed_bcon_since_rx; |
|
struct ieee80211_vif *vif; |
|
u32 id = le32_to_cpu(mb->mac_id); |
|
union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; |
|
|
|
IWL_DEBUG_INFO(mvm, |
|
"missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", |
|
le32_to_cpu(mb->mac_id), |
|
le32_to_cpu(mb->consec_missed_beacons), |
|
le32_to_cpu(mb->consec_missed_beacons_since_last_rx), |
|
le32_to_cpu(mb->num_recvd_beacons), |
|
le32_to_cpu(mb->num_expected_beacons)); |
|
|
|
rcu_read_lock(); |
|
|
|
vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); |
|
if (!vif) |
|
goto out; |
|
|
|
rx_missed_bcon = le32_to_cpu(mb->consec_missed_beacons); |
|
rx_missed_bcon_since_rx = |
|
le32_to_cpu(mb->consec_missed_beacons_since_last_rx); |
|
/* |
|
* TODO: the threshold should be adjusted based on latency conditions, |
|
* and/or in case of a CS flow on one of the other AP vifs. |
|
*/ |
|
if (rx_missed_bcon > IWL_MVM_MISSED_BEACONS_THRESHOLD_LONG) |
|
iwl_mvm_connection_loss(mvm, vif, "missed beacons"); |
|
else if (rx_missed_bcon_since_rx > IWL_MVM_MISSED_BEACONS_THRESHOLD) |
|
ieee80211_beacon_loss(vif); |
|
|
|
iwl_dbg_tlv_time_point(&mvm->fwrt, |
|
IWL_FW_INI_TIME_POINT_MISSED_BEACONS, &tp_data); |
|
|
|
trigger = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), |
|
FW_DBG_TRIGGER_MISSED_BEACONS); |
|
if (!trigger) |
|
goto out; |
|
|
|
bcon_trig = (void *)trigger->data; |
|
stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); |
|
stop_trig_missed_bcon_since_rx = |
|
le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); |
|
|
|
/* TODO: implement start trigger */ |
|
|
|
if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || |
|
rx_missed_bcon >= stop_trig_missed_bcon) |
|
iwl_fw_dbg_collect_trig(&mvm->fwrt, trigger, NULL); |
|
|
|
out: |
|
rcu_read_unlock(); |
|
} |
|
|
|
void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); |
|
struct iwl_stored_beacon_notif *sb = (void *)pkt->data; |
|
struct ieee80211_rx_status rx_status; |
|
struct sk_buff *skb; |
|
u32 size = le32_to_cpu(sb->byte_count); |
|
|
|
if (size == 0 || pkt_len < struct_size(sb, data, size)) |
|
return; |
|
|
|
skb = alloc_skb(size, GFP_ATOMIC); |
|
if (!skb) { |
|
IWL_ERR(mvm, "alloc_skb failed\n"); |
|
return; |
|
} |
|
|
|
/* update rx_status according to the notification's metadata */ |
|
memset(&rx_status, 0, sizeof(rx_status)); |
|
rx_status.mactime = le64_to_cpu(sb->tsf); |
|
/* TSF as indicated by the firmware is at INA time */ |
|
rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; |
|
rx_status.device_timestamp = le32_to_cpu(sb->system_time); |
|
rx_status.band = |
|
(sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? |
|
NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; |
|
rx_status.freq = |
|
ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), |
|
rx_status.band); |
|
|
|
/* copy the data */ |
|
skb_put_data(skb, sb->data, size); |
|
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
|
|
|
/* pass it as regular rx to mac80211 */ |
|
ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); |
|
} |
|
|
|
void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct iwl_probe_resp_data_notif *notif = (void *)pkt->data; |
|
struct iwl_probe_resp_data *old_data, *new_data; |
|
u32 id = le32_to_cpu(notif->mac_id); |
|
struct ieee80211_vif *vif; |
|
struct iwl_mvm_vif *mvmvif; |
|
|
|
IWL_DEBUG_INFO(mvm, "Probe response data notif: noa %d, csa %d\n", |
|
notif->noa_active, notif->csa_counter); |
|
|
|
vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false); |
|
if (!vif) |
|
return; |
|
|
|
mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
|
|
new_data = kzalloc(sizeof(*new_data), GFP_KERNEL); |
|
if (!new_data) |
|
return; |
|
|
|
memcpy(&new_data->notif, notif, sizeof(new_data->notif)); |
|
|
|
/* noa_attr contains 1 reserved byte, need to substruct it */ |
|
new_data->noa_len = sizeof(struct ieee80211_vendor_ie) + |
|
sizeof(new_data->notif.noa_attr) - 1; |
|
|
|
/* |
|
* If it's a one time NoA, only one descriptor is needed, |
|
* adjust the length according to len_low. |
|
*/ |
|
if (new_data->notif.noa_attr.len_low == |
|
sizeof(struct ieee80211_p2p_noa_desc) + 2) |
|
new_data->noa_len -= sizeof(struct ieee80211_p2p_noa_desc); |
|
|
|
old_data = rcu_dereference_protected(mvmvif->probe_resp_data, |
|
lockdep_is_held(&mvmvif->mvm->mutex)); |
|
rcu_assign_pointer(mvmvif->probe_resp_data, new_data); |
|
|
|
if (old_data) |
|
kfree_rcu(old_data, rcu_head); |
|
|
|
if (notif->csa_counter != IWL_PROBE_RESP_DATA_NO_CSA && |
|
notif->csa_counter >= 1) |
|
ieee80211_beacon_set_cntdwn(vif, notif->csa_counter); |
|
} |
|
|
|
void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; |
|
struct ieee80211_vif *csa_vif, *vif; |
|
struct iwl_mvm_vif *mvmvif; |
|
u32 id_n_color, csa_id, mac_id; |
|
|
|
id_n_color = le32_to_cpu(notif->id_and_color); |
|
mac_id = id_n_color & FW_CTXT_ID_MSK; |
|
|
|
if (WARN_ON_ONCE(mac_id >= NUM_MAC_INDEX_DRIVER)) |
|
return; |
|
|
|
rcu_read_lock(); |
|
vif = rcu_dereference(mvm->vif_id_to_mac[mac_id]); |
|
mvmvif = iwl_mvm_vif_from_mac80211(vif); |
|
|
|
switch (vif->type) { |
|
case NL80211_IFTYPE_AP: |
|
csa_vif = rcu_dereference(mvm->csa_vif); |
|
if (WARN_ON(!csa_vif || !csa_vif->csa_active || |
|
csa_vif != vif)) |
|
goto out_unlock; |
|
|
|
csa_id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); |
|
if (WARN(csa_id != id_n_color, |
|
"channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", |
|
csa_id, id_n_color)) |
|
goto out_unlock; |
|
|
|
IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); |
|
|
|
schedule_delayed_work(&mvm->cs_tx_unblock_dwork, |
|
msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * |
|
csa_vif->bss_conf.beacon_int)); |
|
|
|
ieee80211_csa_finish(csa_vif); |
|
|
|
rcu_read_unlock(); |
|
|
|
RCU_INIT_POINTER(mvm->csa_vif, NULL); |
|
return; |
|
case NL80211_IFTYPE_STATION: |
|
iwl_mvm_csa_client_absent(mvm, vif); |
|
cancel_delayed_work(&mvmvif->csa_work); |
|
ieee80211_chswitch_done(vif, true); |
|
break; |
|
default: |
|
/* should never happen */ |
|
WARN_ON_ONCE(1); |
|
break; |
|
} |
|
out_unlock: |
|
rcu_read_unlock(); |
|
} |
|
|
|
void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm, |
|
struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct iwl_missed_vap_notif *mb = (void *)pkt->data; |
|
struct ieee80211_vif *vif; |
|
u32 id = le32_to_cpu(mb->mac_id); |
|
|
|
IWL_DEBUG_INFO(mvm, |
|
"missed_vap notify mac_id=%u, num_beacon_intervals_elapsed=%u, profile_periodicity=%u\n", |
|
le32_to_cpu(mb->mac_id), |
|
mb->num_beacon_intervals_elapsed, |
|
mb->profile_periodicity); |
|
|
|
rcu_read_lock(); |
|
|
|
vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); |
|
if (vif) |
|
iwl_mvm_connection_loss(mvm, vif, "missed vap beacon"); |
|
|
|
rcu_read_unlock(); |
|
}
|
|
|