forked from Minki/linux
c13b172559
This firmware is not supported any more. A few code paths specific to old firmware can be removed. We can now assume that a few TLV flags are always set since we won't load firmware that didn't support the corresponding features. This will be done in a separate patch. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
1287 lines
39 KiB
C
1287 lines
39 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <linux/etherdevice.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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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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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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unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_MAX_QUEUES)];
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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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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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/* 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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* 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 master and slave. Clients that need to sync
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* with a remote station will be the master, and an AP or GO
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* will be the slave.
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*
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* Depending on the new interface type it can be slaved to
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* or become the master 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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min_bi = min(data->vif->bss_conf.beacon_int,
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vif->bss_conf.beacon_int);
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if (!min_bi)
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break;
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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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if (!min_bi)
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break;
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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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* 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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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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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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u32 ac;
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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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/* Mark the queues used by the vif */
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for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
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if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
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__set_bit(vif->hw_queue[ac], data->used_hw_queues);
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if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
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__set_bit(vif->cab_queue, data->used_hw_queues);
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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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/* 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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/*
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* Get the mask of the queus used by the vif
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*/
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u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
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struct ieee80211_vif *vif)
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{
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u32 qmask = 0, ac;
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if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
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return BIT(IWL_MVM_OFFCHANNEL_QUEUE);
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for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
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if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
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qmask |= BIT(vif->hw_queue[ac]);
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return qmask;
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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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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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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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static int iwl_mvm_mac_ctxt_allocate_resources(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_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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.used_hw_queues = {
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BIT(IWL_MVM_OFFCHANNEL_QUEUE) |
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BIT(mvm->aux_queue) |
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BIT(IWL_MVM_CMD_QUEUE)
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},
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.found_vif = false,
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};
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u32 ac;
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int ret, i;
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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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/*
|
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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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/* fall through */
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default:
|
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__clear_bit(0, data.available_mac_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_iface_iterator, &data);
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|
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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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|
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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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|
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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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mvmvif->color = 0;
|
|
|
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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.*/
|
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if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
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for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
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vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE;
|
|
|
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return 0;
|
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}
|
|
|
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/* Find available queues, and allocate them to the ACs */
|
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for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
|
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u8 queue = find_first_zero_bit(data.used_hw_queues,
|
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mvm->first_agg_queue);
|
|
|
|
if (queue >= mvm->first_agg_queue) {
|
|
IWL_ERR(mvm, "Failed to allocate queue\n");
|
|
ret = -EIO;
|
|
goto exit_fail;
|
|
}
|
|
|
|
__set_bit(queue, data.used_hw_queues);
|
|
vif->hw_queue[ac] = queue;
|
|
}
|
|
|
|
/* Allocate the CAB queue for softAP and GO interfaces */
|
|
if (vif->type == NL80211_IFTYPE_AP) {
|
|
u8 queue = find_first_zero_bit(data.used_hw_queues,
|
|
mvm->first_agg_queue);
|
|
|
|
if (queue >= mvm->first_agg_queue) {
|
|
IWL_ERR(mvm, "Failed to allocate cab queue\n");
|
|
ret = -EIO;
|
|
goto exit_fail;
|
|
}
|
|
|
|
vif->cab_queue = queue;
|
|
} else {
|
|
vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
|
|
}
|
|
|
|
mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT;
|
|
mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
|
|
|
|
for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++)
|
|
mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC;
|
|
|
|
return 0;
|
|
|
|
exit_fail:
|
|
memset(mvmvif, 0, sizeof(struct iwl_mvm_vif));
|
|
memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue));
|
|
vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
|
|
return ret;
|
|
}
|
|
|
|
int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
|
|
{
|
|
u32 ac;
|
|
int ret;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif);
|
|
if (ret)
|
|
return ret;
|
|
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
iwl_trans_ac_txq_enable(mvm->trans, IWL_MVM_OFFCHANNEL_QUEUE,
|
|
IWL_MVM_TX_FIFO_VO);
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
iwl_trans_ac_txq_enable(mvm->trans, vif->cab_queue,
|
|
IWL_MVM_TX_FIFO_MCAST);
|
|
/* fall through */
|
|
default:
|
|
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
|
|
iwl_trans_ac_txq_enable(mvm->trans, vif->hw_queue[ac],
|
|
iwl_mvm_ac_to_tx_fifo[ac]);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
|
|
{
|
|
int ac;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_P2P_DEVICE:
|
|
iwl_trans_txq_disable(mvm->trans, IWL_MVM_OFFCHANNEL_QUEUE);
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
iwl_trans_txq_disable(mvm->trans, vif->cab_queue);
|
|
/* fall through */
|
|
default:
|
|
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
|
|
iwl_trans_txq_disable(mvm->trans, vif->hw_queue[ac]);
|
|
}
|
|
}
|
|
|
|
static void iwl_mvm_ack_rates(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
enum ieee80211_band band,
|
|
u8 *cck_rates, u8 *ofdm_rates)
|
|
{
|
|
struct ieee80211_supported_band *sband;
|
|
unsigned long basic = vif->bss_conf.basic_rates;
|
|
int lowest_present_ofdm = 100;
|
|
int lowest_present_cck = 100;
|
|
u8 cck = 0;
|
|
u8 ofdm = 0;
|
|
int i;
|
|
|
|
sband = mvm->hw->wiphy->bands[band];
|
|
|
|
for_each_set_bit(i, &basic, BITS_PER_LONG) {
|
|
int hw = sband->bitrates[i].hw_value;
|
|
if (hw >= IWL_FIRST_OFDM_RATE) {
|
|
ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE);
|
|
if (lowest_present_ofdm > hw)
|
|
lowest_present_ofdm = hw;
|
|
} else {
|
|
BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0);
|
|
|
|
cck |= BIT(hw);
|
|
if (lowest_present_cck > hw)
|
|
lowest_present_cck = hw;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
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;
|
|
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 (vif->bss_conf.bssid)
|
|
memcpy(cmd->bssid_addr, vif->bss_conf.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
|
|
: IEEE80211_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);
|
|
|
|
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
|
|
u8 txf = iwl_mvm_ac_to_tx_fifo[i];
|
|
|
|
cmd->ac[txf].cw_min =
|
|
cpu_to_le16(mvmvif->queue_params[i].cw_min);
|
|
cmd->ac[txf].cw_max =
|
|
cpu_to_le16(mvmvif->queue_params[i].cw_max);
|
|
cmd->ac[txf].edca_txop =
|
|
cpu_to_le16(mvmvif->queue_params[i].txop * 32);
|
|
cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs;
|
|
cmd->ac[txf].fifos_mask = BIT(txf);
|
|
}
|
|
|
|
/* in AP mode, the MCAST FIFO takes the EDCA params from VO */
|
|
if (vif->type == NL80211_IFTYPE_AP)
|
|
cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |=
|
|
BIT(IWL_MVM_TX_FIFO_MCAST);
|
|
|
|
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);
|
|
cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_SELF_CTS_EN);
|
|
}
|
|
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);
|
|
|
|
cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP);
|
|
}
|
|
|
|
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, CMD_SYNC,
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* Fill the specific data for mac context of type station or p2p client
|
|
*/
|
|
static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
struct iwl_mac_data_sta *ctxt_sta,
|
|
bool force_assoc_off)
|
|
{
|
|
/* We need the dtim_period to set the MAC as associated */
|
|
if (vif->bss_conf.assoc && vif->bss_conf.dtim_period &&
|
|
!force_assoc_off) {
|
|
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);
|
|
|
|
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);
|
|
} else {
|
|
ctxt_sta->is_assoc = cpu_to_le32(0);
|
|
}
|
|
|
|
ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int);
|
|
ctxt_sta->bi_reciprocal =
|
|
cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
|
|
ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
|
|
vif->bss_conf.dtim_period);
|
|
ctxt_sta->dtim_reciprocal =
|
|
cpu_to_le32(iwl_mvm_reciprocal(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);
|
|
}
|
|
|
|
static int iwl_mvm_mac_ctxt_cmd_station(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
u32 action)
|
|
{
|
|
struct iwl_mac_ctx_cmd cmd = {};
|
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_STATION || vif->p2p);
|
|
|
|
/* Fill the common data for all mac context types */
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
|
|
|
|
/* Allow beacons to pass through as long as we are not associated,or we
|
|
* do not have dtim period information */
|
|
if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period)
|
|
cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON);
|
|
else
|
|
cmd.filter_flags &= ~cpu_to_le32(MAC_FILTER_IN_BEACON);
|
|
|
|
/* Fill the data specific for station mode */
|
|
iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta,
|
|
action == FW_CTXT_ACTION_ADD);
|
|
|
|
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
|
|
}
|
|
|
|
static int iwl_mvm_mac_ctxt_cmd_p2p_client(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_STATION || !vif->p2p);
|
|
|
|
/* Fill the common data for all mac context types */
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
|
|
|
|
/* Fill the data specific for station mode */
|
|
iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta,
|
|
action == FW_CTXT_ACTION_ADD);
|
|
|
|
cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow &
|
|
IEEE80211_P2P_OPPPS_CTWINDOW_MASK);
|
|
|
|
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 = {};
|
|
|
|
WARN_ON(vif->type != NL80211_IFTYPE_MONITOR);
|
|
|
|
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, 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);
|
|
mvm->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS;
|
|
|
|
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, action);
|
|
|
|
cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON |
|
|
MAC_FILTER_IN_PROBE_REQUEST);
|
|
|
|
/* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */
|
|
cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int);
|
|
cmd.ibss.bi_reciprocal =
|
|
cpu_to_le32(iwl_mvm_reciprocal(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, action);
|
|
|
|
cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm,
|
|
struct iwl_mac_beacon_cmd *beacon_cmd,
|
|
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)) {
|
|
beacon_cmd->tim_idx = cpu_to_le32(tim_idx);
|
|
beacon_cmd->tim_size = cpu_to_le32((u32)beacon[tim_idx+1]);
|
|
} else {
|
|
IWL_WARN(mvm, "Unable to find TIM Element in beacon\n");
|
|
}
|
|
}
|
|
|
|
static int iwl_mvm_mac_ctxt_send_beacon(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_host_cmd cmd = {
|
|
.id = BEACON_TEMPLATE_CMD,
|
|
.flags = CMD_ASYNC,
|
|
};
|
|
struct iwl_mac_beacon_cmd beacon_cmd = {};
|
|
struct ieee80211_tx_info *info;
|
|
u32 beacon_skb_len;
|
|
u32 rate;
|
|
|
|
if (WARN_ON(!beacon))
|
|
return -EINVAL;
|
|
|
|
beacon_skb_len = beacon->len;
|
|
|
|
/* TODO: for now the beacon template id is set to be the mac context id.
|
|
* Might be better to handle it as another resource ... */
|
|
beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
|
|
|
|
/* Set up TX command fields */
|
|
beacon_cmd.tx.len = cpu_to_le16((u16)beacon_skb_len);
|
|
beacon_cmd.tx.sta_id = mvmvif->bcast_sta.sta_id;
|
|
beacon_cmd.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
|
|
beacon_cmd.tx.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
|
|
TX_CMD_FLG_BT_DIS |
|
|
TX_CMD_FLG_TSF);
|
|
|
|
mvm->mgmt_last_antenna_idx =
|
|
iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant,
|
|
mvm->mgmt_last_antenna_idx);
|
|
|
|
beacon_cmd.tx.rate_n_flags =
|
|
cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) <<
|
|
RATE_MCS_ANT_POS);
|
|
|
|
info = IEEE80211_SKB_CB(beacon);
|
|
|
|
if (info->band == IEEE80211_BAND_5GHZ || vif->p2p) {
|
|
rate = IWL_FIRST_OFDM_RATE;
|
|
} else {
|
|
rate = IWL_FIRST_CCK_RATE;
|
|
beacon_cmd.tx.rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK);
|
|
}
|
|
beacon_cmd.tx.rate_n_flags |=
|
|
cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate));
|
|
|
|
/* Set up TX beacon command fields */
|
|
if (vif->type == NL80211_IFTYPE_AP)
|
|
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd,
|
|
beacon->data,
|
|
beacon_skb_len);
|
|
|
|
/* Submit command */
|
|
cmd.len[0] = sizeof(beacon_cmd);
|
|
cmd.data[0] = &beacon_cmd;
|
|
cmd.dataflags[0] = 0;
|
|
cmd.len[1] = beacon_skb_len;
|
|
cmd.data[1] = beacon->data;
|
|
cmd.dataflags[1] = IWL_HCMD_DFL_DUP;
|
|
|
|
return iwl_mvm_send_cmd(mvm, &cmd);
|
|
}
|
|
|
|
/* 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(mvm->hw, vif);
|
|
if (!beacon)
|
|
return -ENOMEM;
|
|
|
|
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_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
|
|
};
|
|
|
|
ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int);
|
|
ctxt_ap->bi_reciprocal =
|
|
cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
|
|
ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
|
|
vif->bss_conf.dtim_period);
|
|
ctxt_ap->dtim_reciprocal =
|
|
cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int *
|
|
vif->bss_conf.dtim_period));
|
|
|
|
ctxt_ap->mcast_qid = cpu_to_le32(vif->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_read_prph(mvm->trans,
|
|
DEVICE_SYSTEM_TIME_REG);
|
|
}
|
|
}
|
|
|
|
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, action);
|
|
|
|
/* Also enable probe requests to pass */
|
|
cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
|
|
|
|
/* Fill the data specific for ap mode */
|
|
iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &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, action);
|
|
|
|
/* Fill the data specific for GO mode */
|
|
iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &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)
|
|
{
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
if (!vif->p2p)
|
|
return iwl_mvm_mac_ctxt_cmd_station(mvm, vif,
|
|
action);
|
|
else
|
|
return iwl_mvm_mac_ctxt_cmd_p2p_client(mvm, vif,
|
|
action);
|
|
break;
|
|
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);
|
|
break;
|
|
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);
|
|
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)
|
|
{
|
|
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);
|
|
}
|
|
|
|
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, CMD_SYNC,
|
|
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)
|
|
mvm->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb,
|
|
struct iwl_device_cmd *cmd)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_beacon_notif *beacon = (void *)pkt->data;
|
|
u16 status __maybe_unused =
|
|
le16_to_cpu(beacon->beacon_notify_hdr.status.status);
|
|
u32 rate __maybe_unused =
|
|
le32_to_cpu(beacon->beacon_notify_hdr.initial_rate);
|
|
|
|
IWL_DEBUG_RX(mvm, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n",
|
|
status & TX_STATUS_MSK,
|
|
beacon->beacon_notify_hdr.failure_frame,
|
|
le64_to_cpu(beacon->tsf),
|
|
rate);
|
|
return 0;
|
|
}
|
|
|
|
static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct iwl_missed_beacons_notif *missed_beacons = _data;
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id))
|
|
return;
|
|
|
|
/*
|
|
* 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 (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) >
|
|
IWL_MVM_MISSED_BEACONS_THRESHOLD)
|
|
ieee80211_beacon_loss(vif);
|
|
}
|
|
|
|
int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb,
|
|
struct iwl_device_cmd *cmd)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_missed_beacons_notif *mb = (void *)pkt->data;
|
|
|
|
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));
|
|
|
|
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
|
|
IEEE80211_IFACE_ITER_NORMAL,
|
|
iwl_mvm_beacon_loss_iterator,
|
|
mb);
|
|
return 0;
|
|
}
|