2013-01-24 20:25:36 +07:00
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/******************************************************************************
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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 - 2013 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 LICENSE.GPL.
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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 - 2013 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/kernel.h>
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#include <linux/slab.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "iwl-op-mode.h"
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#include "iwl-io.h"
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#include "mvm.h"
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#include "sta.h"
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#include "time-event.h"
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#include "iwl-eeprom-parse.h"
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#include "fw-api-scan.h"
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#include "iwl-phy-db.h"
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static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_AP),
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_P2P_GO),
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
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},
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};
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static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
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{
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.num_different_channels = 1,
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.max_interfaces = 3,
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.limits = iwl_mvm_limits,
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.n_limits = ARRAY_SIZE(iwl_mvm_limits),
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},
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};
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int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
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{
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struct ieee80211_hw *hw = mvm->hw;
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int num_mac, ret;
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/* Tell mac80211 our characteristics */
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hw->flags = IEEE80211_HW_SIGNAL_DBM |
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IEEE80211_HW_SPECTRUM_MGMT |
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IEEE80211_HW_REPORTS_TX_ACK_STATUS |
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IEEE80211_HW_QUEUE_CONTROL |
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IEEE80211_HW_WANT_MONITOR_VIF |
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IEEE80211_HW_SUPPORTS_PS |
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IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
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2013-02-06 00:10:04 +07:00
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IEEE80211_HW_AMPDU_AGGREGATION |
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IEEE80211_HW_TIMING_BEACON_ONLY;
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2013-01-24 20:25:36 +07:00
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hw->queues = IWL_FIRST_AMPDU_QUEUE;
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hw->offchannel_tx_hw_queue = IWL_OFFCHANNEL_QUEUE;
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hw->rate_control_algorithm = "iwl-mvm-rs";
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/*
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* Enable 11w if advertised by firmware and software crypto
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* is not enabled (as the firmware will interpret some mgmt
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* packets, so enabling it with software crypto isn't safe)
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*/
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if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
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!iwlwifi_mod_params.sw_crypto)
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hw->flags |= IEEE80211_HW_MFP_CAPABLE;
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hw->sta_data_size = sizeof(struct iwl_mvm_sta);
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hw->vif_data_size = sizeof(struct iwl_mvm_vif);
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hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
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hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_AP) |
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BIT(NL80211_IFTYPE_P2P_GO) |
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BIT(NL80211_IFTYPE_P2P_DEVICE);
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hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
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WIPHY_FLAG_DISABLE_BEACON_HINTS |
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WIPHY_FLAG_IBSS_RSN;
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hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
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hw->wiphy->n_iface_combinations =
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ARRAY_SIZE(iwl_mvm_iface_combinations);
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hw->wiphy->max_remain_on_channel_duration = 500;
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hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
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/* Extract MAC address */
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memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
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hw->wiphy->addresses = mvm->addresses;
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hw->wiphy->n_addresses = 1;
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num_mac = mvm->nvm_data->n_hw_addrs;
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if (num_mac > 1) {
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memcpy(mvm->addresses[1].addr, mvm->addresses[0].addr,
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ETH_ALEN);
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mvm->addresses[1].addr[5]++;
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hw->wiphy->n_addresses++;
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}
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/* we create the 802.11 header and a max-length SSID element */
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hw->wiphy->max_scan_ie_len =
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mvm->fw->ucode_capa.max_probe_length - 24 - 34;
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hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
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if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
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hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
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&mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
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if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
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hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
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&mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
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hw->wiphy->hw_version = mvm->trans->hw_id;
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if (iwlwifi_mod_params.power_save)
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hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
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else
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hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
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hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
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NL80211_FEATURE_P2P_GO_OPPPS;
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mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
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#ifdef CONFIG_PM_SLEEP
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if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
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mvm->trans->ops->d3_suspend &&
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mvm->trans->ops->d3_resume &&
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device_can_wakeup(mvm->trans->dev)) {
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hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
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WIPHY_WOWLAN_DISCONNECT |
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WIPHY_WOWLAN_EAP_IDENTITY_REQ |
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WIPHY_WOWLAN_RFKILL_RELEASE;
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if (!iwlwifi_mod_params.sw_crypto)
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hw->wiphy->wowlan.flags |=
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WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
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WIPHY_WOWLAN_GTK_REKEY_FAILURE |
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WIPHY_WOWLAN_4WAY_HANDSHAKE;
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hw->wiphy->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
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hw->wiphy->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
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hw->wiphy->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
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}
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#endif
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ret = iwl_mvm_leds_init(mvm);
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if (ret)
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return ret;
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return ieee80211_register_hw(mvm->hw);
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}
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static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
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struct ieee80211_tx_control *control,
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struct sk_buff *skb)
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{
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struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
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if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
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IWL_DEBUG_DROP(mvm, "Dropping - RF KILL\n");
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goto drop;
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}
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if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_OFFCHANNEL_QUEUE &&
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!test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
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goto drop;
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if (control->sta) {
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if (iwl_mvm_tx_skb(mvm, skb, control->sta))
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goto drop;
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return;
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}
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if (iwl_mvm_tx_skb_non_sta(mvm, skb))
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goto drop;
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return;
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drop:
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ieee80211_free_txskb(hw, skb);
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}
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static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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enum ieee80211_ampdu_mlme_action action,
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struct ieee80211_sta *sta, u16 tid,
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u16 *ssn, u8 buf_size)
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{
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struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
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int ret;
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IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
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sta->addr, tid, action);
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if (!(mvm->nvm_data->sku_cap_11n_enable))
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return -EACCES;
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mutex_lock(&mvm->mutex);
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switch (action) {
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case IEEE80211_AMPDU_RX_START:
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if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
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ret = -EINVAL;
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break;
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}
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ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
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break;
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case IEEE80211_AMPDU_RX_STOP:
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ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
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break;
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case IEEE80211_AMPDU_TX_START:
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ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
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break;
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case IEEE80211_AMPDU_TX_STOP_CONT:
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case IEEE80211_AMPDU_TX_STOP_FLUSH:
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case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
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ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
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break;
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case IEEE80211_AMPDU_TX_OPERATIONAL:
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ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
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break;
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default:
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WARN_ON_ONCE(1);
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ret = -EINVAL;
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break;
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}
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mutex_unlock(&mvm->mutex);
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return ret;
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}
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static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
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struct ieee80211_vif *vif)
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{
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struct iwl_mvm *mvm = data;
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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mvmvif->uploaded = false;
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mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
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/* does this make sense at all? */
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mvmvif->color++;
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spin_lock_bh(&mvm->time_event_lock);
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iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
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spin_unlock_bh(&mvm->time_event_lock);
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if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
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mvmvif->phy_ctxt = NULL;
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}
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static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
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{
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iwl_trans_stop_device(mvm->trans);
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iwl_trans_stop_hw(mvm->trans, false);
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mvm->scan_status = IWL_MVM_SCAN_NONE;
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/* just in case one was running */
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ieee80211_remain_on_channel_expired(mvm->hw);
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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_cleanup_iterator, mvm);
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memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
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memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
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ieee80211_wake_queues(mvm->hw);
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|
mvm->vif_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
/* Clean up some internal and mac80211 state on restart */
|
|
|
|
if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
|
|
|
|
iwl_mvm_restart_cleanup(mvm);
|
|
|
|
|
|
|
|
ret = iwl_mvm_up(mvm);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
|
|
|
|
ret = iwl_mvm_update_quotas(mvm, NULL);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
|
|
|
|
ret);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
flush_work(&mvm->async_handlers_wk);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
/* async_handlers_wk is now blocked */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The work item could be running or queued if the
|
|
|
|
* ROC time event stops just as we get here.
|
|
|
|
*/
|
|
|
|
cancel_work_sync(&mvm->roc_done_wk);
|
|
|
|
|
|
|
|
iwl_trans_stop_device(mvm->trans);
|
|
|
|
iwl_trans_stop_hw(mvm->trans, false);
|
|
|
|
|
|
|
|
iwl_mvm_async_handlers_purge(mvm);
|
|
|
|
/* async_handlers_list is empty and will stay empty: HW is stopped */
|
|
|
|
|
|
|
|
/* the fw is stopped, the aux sta is dead: clean up driver state */
|
|
|
|
iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The worker might have been waiting for the mutex, let it run and
|
|
|
|
* discover that its list is now empty.
|
|
|
|
*/
|
|
|
|
cancel_work_sync(&mvm->async_handlers_wk);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = data;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = iwl_mvm_power_disable(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "failed to disable power management\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = data;
|
|
|
|
|
|
|
|
iwl_mvm_power_update_mode(mvm, vif);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Not much to do here. The stack will not allow interface
|
|
|
|
* types or combinations that we didn't advertise, so we
|
|
|
|
* don't really have to check the types.
|
|
|
|
*/
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
/* Allocate resources for the MAC context, and add it the the fw */
|
|
|
|
ret = iwl_mvm_mac_ctxt_init(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The AP binding flow can be done only after the beacon
|
|
|
|
* template is configured (which happens only in the mac80211
|
|
|
|
* start_ap() flow), and adding the broadcast station can happen
|
|
|
|
* only after the binding.
|
|
|
|
* In addition, since modifying the MAC before adding a bcast
|
|
|
|
* station is not allowed by the FW, delay the adding of MAC context to
|
|
|
|
* the point where we can also add the bcast station.
|
|
|
|
* In short: there's not much we can do at this point, other than
|
|
|
|
* allocating resources :)
|
|
|
|
*/
|
|
|
|
if (vif->type == NL80211_IFTYPE_AP) {
|
|
|
|
u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
|
|
|
|
ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
|
|
|
|
qmask);
|
|
|
|
if (ret) {
|
|
|
|
IWL_ERR(mvm, "Failed to allocate bcast sta\n");
|
|
|
|
goto out_release;
|
|
|
|
}
|
|
|
|
|
|
|
|
goto out_unlock;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* TODO: remove this temporary code.
|
|
|
|
* Currently MVM FW supports power management only on single MAC.
|
|
|
|
* Iterate and disable PM on all active interfaces.
|
|
|
|
* Note: the method below does not count the new interface being added
|
|
|
|
* at this moment.
|
|
|
|
*/
|
|
|
|
mvm->vif_count++;
|
|
|
|
if (mvm->vif_count > 1) {
|
|
|
|
IWL_DEBUG_MAC80211(mvm,
|
|
|
|
"Disable power on existing interfaces\n");
|
2013-02-11 20:56:01 +07:00
|
|
|
ieee80211_iterate_active_interfaces_atomic(
|
2013-01-24 20:25:36 +07:00
|
|
|
mvm->hw,
|
|
|
|
IEEE80211_IFACE_ITER_NORMAL,
|
|
|
|
iwl_mvm_pm_disable_iterator, mvm);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwl_mvm_mac_ctxt_add(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_release;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Update power state on the new interface. Admittedly, based on
|
|
|
|
* mac80211 logics this power update will disable power management
|
|
|
|
*/
|
|
|
|
iwl_mvm_power_update_mode(mvm, vif);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* P2P_DEVICE interface does not have a channel context assigned to it,
|
|
|
|
* so a dedicated PHY context is allocated to it and the corresponding
|
|
|
|
* MAC context is bound to it at this stage.
|
|
|
|
*/
|
|
|
|
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
|
|
|
|
struct ieee80211_channel *chan;
|
|
|
|
struct cfg80211_chan_def chandef;
|
|
|
|
|
|
|
|
mvmvif->phy_ctxt = &mvm->phy_ctxt_roc;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The channel used here isn't relevant as it's
|
|
|
|
* going to be overwritten as part of the ROC flow.
|
|
|
|
* For now use the first channel we have.
|
|
|
|
*/
|
|
|
|
chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
|
|
|
|
cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
|
|
|
|
ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt,
|
|
|
|
&chandef, 1, 1);
|
|
|
|
if (ret)
|
|
|
|
goto out_remove_mac;
|
|
|
|
|
|
|
|
ret = iwl_mvm_binding_add_vif(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_remove_phy;
|
|
|
|
|
|
|
|
ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
|
|
|
|
if (ret)
|
|
|
|
goto out_unbind;
|
|
|
|
|
|
|
|
/* Save a pointer to p2p device vif, so it can later be used to
|
|
|
|
* update the p2p device MAC when a GO is started/stopped */
|
|
|
|
mvm->p2p_device_vif = vif;
|
|
|
|
}
|
|
|
|
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
out_unbind:
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
out_remove_phy:
|
|
|
|
iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
|
|
|
|
out_remove_mac:
|
|
|
|
mvmvif->phy_ctxt = NULL;
|
|
|
|
iwl_mvm_mac_ctxt_remove(mvm, vif);
|
|
|
|
out_release:
|
|
|
|
/*
|
|
|
|
* TODO: remove this temporary code.
|
|
|
|
* Currently MVM FW supports power management only on single MAC.
|
|
|
|
* Check if only one additional interface remains after rereasing
|
|
|
|
* current one. Update power mode on the remaining interface.
|
|
|
|
*/
|
|
|
|
mvm->vif_count--;
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
|
|
|
|
mvm->vif_count);
|
|
|
|
if (mvm->vif_count == 1) {
|
|
|
|
ieee80211_iterate_active_interfaces(
|
|
|
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
|
|
|
|
iwl_mvm_power_update_iterator, mvm);
|
|
|
|
}
|
|
|
|
iwl_mvm_mac_ctxt_release(mvm, vif);
|
|
|
|
out_unlock:
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
u32 tfd_msk = 0, ac;
|
|
|
|
|
|
|
|
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
|
|
|
|
if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
|
|
|
|
tfd_msk |= BIT(vif->hw_queue[ac]);
|
|
|
|
|
|
|
|
if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
|
|
|
|
tfd_msk |= BIT(vif->cab_queue);
|
|
|
|
|
|
|
|
if (tfd_msk) {
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
|
|
|
|
/*
|
|
|
|
* Flush the ROC worker which will flush the OFFCHANNEL queue.
|
|
|
|
* We assume here that all the packets sent to the OFFCHANNEL
|
|
|
|
* queue are sent in ROC session.
|
|
|
|
*/
|
|
|
|
flush_work(&mvm->roc_done_wk);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* By now, all the AC queues are empty. The AGG queues are
|
|
|
|
* empty too. We already got all the Tx responses for all the
|
|
|
|
* packets in the queues. The drain work can have been
|
|
|
|
* triggered. Flush it. This work item takes the mutex, so kill
|
|
|
|
* it before we take it.
|
|
|
|
*/
|
|
|
|
flush_work(&mvm->sta_drained_wk);
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For AP/GO interface, the tear down of the resources allocated to the
|
|
|
|
* interface should be handled as part of the bss_info_changed flow.
|
|
|
|
*/
|
|
|
|
if (vif->type == NL80211_IFTYPE_AP) {
|
|
|
|
iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
|
|
|
|
goto out_release;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
|
|
|
|
mvm->p2p_device_vif = NULL;
|
|
|
|
iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
|
|
|
|
mvmvif->phy_ctxt = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* TODO: remove this temporary code.
|
|
|
|
* Currently MVM FW supports power management only on single MAC.
|
|
|
|
* Check if only one additional interface remains after removing
|
|
|
|
* current one. Update power mode on the remaining interface.
|
|
|
|
*/
|
|
|
|
if (mvm->vif_count)
|
|
|
|
mvm->vif_count--;
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
|
|
|
|
mvm->vif_count);
|
|
|
|
if (mvm->vif_count == 1) {
|
|
|
|
ieee80211_iterate_active_interfaces(
|
|
|
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
|
|
|
|
iwl_mvm_power_update_iterator, mvm);
|
|
|
|
}
|
|
|
|
|
|
|
|
iwl_mvm_mac_ctxt_remove(mvm, vif);
|
|
|
|
|
|
|
|
out_release:
|
|
|
|
iwl_mvm_mac_ctxt_release(mvm, vif);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
|
|
|
|
unsigned int changed_flags,
|
|
|
|
unsigned int *total_flags,
|
|
|
|
u64 multicast)
|
|
|
|
{
|
|
|
|
*total_flags = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
|
|
u32 changes)
|
|
|
|
{
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
|
|
|
|
|
|
|
|
if (changes & BSS_CHANGED_ASSOC) {
|
|
|
|
if (bss_conf->assoc) {
|
|
|
|
/* add quota for this interface */
|
|
|
|
ret = iwl_mvm_update_quotas(mvm, vif);
|
|
|
|
if (ret) {
|
|
|
|
IWL_ERR(mvm, "failed to update quotas\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
} else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
|
|
|
|
/* remove AP station now that the MAC is unassoc */
|
|
|
|
ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "failed to remove AP station\n");
|
|
|
|
mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
|
|
|
|
/* remove quota for this interface */
|
|
|
|
ret = iwl_mvm_update_quotas(mvm, NULL);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "failed to update quotas\n");
|
|
|
|
}
|
2013-01-25 05:48:23 +07:00
|
|
|
} else if (changes & BSS_CHANGED_DTIM_PERIOD) {
|
|
|
|
/*
|
|
|
|
* We received a beacon _after_ association so
|
|
|
|
* remove the session protection.
|
|
|
|
*/
|
|
|
|
iwl_mvm_remove_time_event(mvm, mvmvif,
|
|
|
|
&mvmvif->time_event_data);
|
2013-01-24 20:25:36 +07:00
|
|
|
} else if (changes & BSS_CHANGED_PS) {
|
|
|
|
/*
|
|
|
|
* TODO: remove this temporary code.
|
|
|
|
* Currently MVM FW supports power management only on single
|
|
|
|
* MAC. Avoid power mode update if more than one interface
|
|
|
|
* is active.
|
|
|
|
*/
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
|
|
|
|
mvm->vif_count);
|
|
|
|
if (mvm->vif_count == 1) {
|
|
|
|
ret = iwl_mvm_power_update_mode(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
IWL_ERR(mvm, "failed to update power mode\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
/* Send the beacon template */
|
|
|
|
ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
/* Add the mac context */
|
|
|
|
ret = iwl_mvm_mac_ctxt_add(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
/* Perform the binding */
|
|
|
|
ret = iwl_mvm_binding_add_vif(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_remove;
|
|
|
|
|
|
|
|
mvmvif->ap_active = true;
|
|
|
|
|
|
|
|
/* Send the bcast station. At this stage the TBTT and DTIM time events
|
|
|
|
* are added and applied to the scheduler */
|
|
|
|
ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
|
|
|
|
if (ret)
|
|
|
|
goto out_unbind;
|
|
|
|
|
|
|
|
ret = iwl_mvm_update_quotas(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_rm_bcast;
|
|
|
|
|
|
|
|
/* Need to update the P2P Device MAC */
|
|
|
|
if (vif->p2p && mvm->p2p_device_vif)
|
|
|
|
iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_rm_bcast:
|
|
|
|
iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
|
|
|
|
out_unbind:
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
out_remove:
|
|
|
|
iwl_mvm_mac_ctxt_remove(mvm, vif);
|
|
|
|
out_unlock:
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
mvmvif->ap_active = false;
|
|
|
|
|
|
|
|
/* Need to update the P2P Device MAC */
|
|
|
|
if (vif->p2p && mvm->p2p_device_vif)
|
|
|
|
iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
|
|
|
|
|
|
|
|
iwl_mvm_update_quotas(mvm, NULL);
|
|
|
|
iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
iwl_mvm_mac_ctxt_remove(mvm, vif);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
|
|
u32 changes)
|
|
|
|
{
|
|
|
|
/* Need to send a new beacon template to the FW */
|
|
|
|
if (changes & BSS_CHANGED_BEACON) {
|
|
|
|
if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
|
|
|
|
IWL_WARN(mvm, "Failed updating beacon data\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
|
|
u32 changes)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
switch (vif->type) {
|
|
|
|
case NL80211_IFTYPE_STATION:
|
|
|
|
iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
|
|
|
|
break;
|
|
|
|
case NL80211_IFTYPE_AP:
|
|
|
|
iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* shouldn't happen */
|
|
|
|
WARN_ON_ONCE(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct cfg80211_scan_request *req)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
if (mvm->scan_status == IWL_MVM_SCAN_NONE)
|
|
|
|
ret = iwl_mvm_scan_request(mvm, vif, req);
|
|
|
|
else
|
|
|
|
ret = -EBUSY;
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
iwl_mvm_cancel_scan(mvm);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_sta *sta, u16 tid,
|
|
|
|
int num_frames,
|
|
|
|
enum ieee80211_frame_release_type reason,
|
|
|
|
bool more_data)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
/* TODO: how do we tell the fw to send frames for a specific TID */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The fw will send EOSP notification when the last frame will be
|
|
|
|
* transmitted.
|
|
|
|
*/
|
2013-02-16 04:47:48 +07:00
|
|
|
iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
|
2013-01-24 20:25:36 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
enum sta_notify_cmd cmd,
|
|
|
|
struct ieee80211_sta *sta)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case STA_NOTIFY_SLEEP:
|
|
|
|
if (atomic_read(&mvmsta->pending_frames) > 0)
|
|
|
|
ieee80211_sta_block_awake(hw, sta, true);
|
|
|
|
/*
|
|
|
|
* The fw updates the STA to be asleep. Tx packets on the Tx
|
|
|
|
* queues to this station will not be transmitted. The fw will
|
|
|
|
* send a Tx response with TX_STATUS_FAIL_DEST_PS.
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
case STA_NOTIFY_AWAKE:
|
|
|
|
if (WARN_ON(mvmsta->sta_id == IWL_INVALID_STATION))
|
|
|
|
break;
|
2013-02-16 04:47:48 +07:00
|
|
|
iwl_mvm_sta_modify_ps_wake(mvm, sta);
|
2013-01-24 20:25:36 +07:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_sta *sta,
|
|
|
|
enum ieee80211_sta_state old_state,
|
|
|
|
enum ieee80211_sta_state new_state)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
|
|
|
|
sta->addr, old_state, new_state);
|
|
|
|
|
|
|
|
/* this would be a mac80211 bug ... but don't crash */
|
|
|
|
if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* if a STA is being removed, reuse its ID */
|
|
|
|
flush_work(&mvm->sta_drained_wk);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
if (old_state == IEEE80211_STA_NOTEXIST &&
|
|
|
|
new_state == IEEE80211_STA_NONE) {
|
|
|
|
ret = iwl_mvm_add_sta(mvm, vif, sta);
|
|
|
|
} else if (old_state == IEEE80211_STA_NONE &&
|
|
|
|
new_state == IEEE80211_STA_AUTH) {
|
|
|
|
ret = 0;
|
|
|
|
} else if (old_state == IEEE80211_STA_AUTH &&
|
|
|
|
new_state == IEEE80211_STA_ASSOC) {
|
2013-02-12 19:10:44 +07:00
|
|
|
ret = iwl_mvm_update_sta(mvm, vif, sta);
|
|
|
|
if (ret == 0)
|
|
|
|
iwl_mvm_rs_rate_init(mvm, sta,
|
|
|
|
mvmvif->phy_ctxt->channel->band);
|
2013-01-24 20:25:36 +07:00
|
|
|
} else if (old_state == IEEE80211_STA_ASSOC &&
|
|
|
|
new_state == IEEE80211_STA_AUTHORIZED) {
|
|
|
|
ret = 0;
|
|
|
|
} else if (old_state == IEEE80211_STA_AUTHORIZED &&
|
|
|
|
new_state == IEEE80211_STA_ASSOC) {
|
|
|
|
ret = 0;
|
|
|
|
} else if (old_state == IEEE80211_STA_ASSOC &&
|
|
|
|
new_state == IEEE80211_STA_AUTH) {
|
|
|
|
ret = 0;
|
|
|
|
} else if (old_state == IEEE80211_STA_AUTH &&
|
|
|
|
new_state == IEEE80211_STA_NONE) {
|
|
|
|
ret = 0;
|
|
|
|
} else if (old_state == IEEE80211_STA_NONE &&
|
|
|
|
new_state == IEEE80211_STA_NOTEXIST) {
|
|
|
|
ret = iwl_mvm_rm_sta(mvm, vif, sta);
|
|
|
|
} else {
|
|
|
|
ret = -EIO;
|
|
|
|
}
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
mvm->rts_threshold = value;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif, u16 ac,
|
|
|
|
const struct ieee80211_tx_queue_params *params)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
|
|
|
|
mvmvif->queue_params[ac] = *params;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* No need to update right away, we'll get BSS_CHANGED_QOS
|
|
|
|
* The exception is P2P_DEVICE interface which needs immediate update.
|
|
|
|
*/
|
|
|
|
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
|
|
|
|
200 + vif->bss_conf.beacon_int);
|
|
|
|
u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
|
|
|
|
100 + vif->bss_conf.beacon_int);
|
|
|
|
|
|
|
|
if (WARN_ON_ONCE(vif->bss_conf.assoc))
|
|
|
|
return;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
/* Try really hard to protect the session and hear a beacon */
|
|
|
|
iwl_mvm_protect_session(mvm, vif, duration, min_duration);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
|
|
|
|
enum set_key_cmd cmd,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_sta *sta,
|
|
|
|
struct ieee80211_key_conf *key)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (iwlwifi_mod_params.sw_crypto) {
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (key->cipher) {
|
|
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
|
|
|
|
/* fall-through */
|
|
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
|
|
break;
|
|
|
|
case WLAN_CIPHER_SUITE_AES_CMAC:
|
|
|
|
WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
|
|
|
|
break;
|
|
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
|
|
/*
|
|
|
|
* Support for TX only, at least for now, so accept
|
|
|
|
* the key and do nothing else. Then mac80211 will
|
|
|
|
* pass it for TX but we don't have to use it for RX.
|
|
|
|
*/
|
|
|
|
return 0;
|
|
|
|
default:
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case SET_KEY:
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
|
|
|
|
ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
|
|
|
|
if (ret) {
|
|
|
|
IWL_WARN(mvm, "set key failed\n");
|
|
|
|
/*
|
|
|
|
* can't add key for RX, but we don't need it
|
|
|
|
* in the device for TX so still return 0
|
|
|
|
*/
|
|
|
|
ret = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
case DISABLE_KEY:
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
|
|
|
|
ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_key_conf *keyconf,
|
|
|
|
struct ieee80211_sta *sta,
|
|
|
|
u32 iv32, u16 *phase1key)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int iwl_mvm_roc(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_channel *channel,
|
|
|
|
int duration)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct cfg80211_chan_def chandef;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
|
|
|
|
IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "enter (%d, %d)\n", channel->hw_value,
|
|
|
|
duration);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
|
|
|
|
ret = iwl_mvm_phy_ctxt_changed(mvm, &mvm->phy_ctxt_roc,
|
|
|
|
&chandef, 1, 1);
|
|
|
|
|
|
|
|
/* Schedule the time events */
|
|
|
|
ret = iwl_mvm_start_p2p_roc(mvm, vif, duration);
|
|
|
|
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "leave\n");
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "enter\n");
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
iwl_mvm_stop_p2p_roc(mvm);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "leave\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_chanctx_conf *ctx)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
|
|
|
|
ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def,
|
|
|
|
ctx->rx_chains_static,
|
|
|
|
ctx->rx_chains_dynamic);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_chanctx_conf *ctx)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
iwl_mvm_phy_ctxt_remove(mvm, phy_ctxt);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_chanctx_conf *ctx,
|
|
|
|
u32 changed)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
|
|
|
|
ctx->rx_chains_static,
|
|
|
|
ctx->rx_chains_dynamic);
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_chanctx_conf *ctx)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_phy_ctxt *phyctx = (void *)ctx->drv_priv;
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
mvmvif->phy_ctxt = phyctx;
|
|
|
|
|
|
|
|
switch (vif->type) {
|
|
|
|
case NL80211_IFTYPE_AP:
|
|
|
|
/*
|
|
|
|
* The AP binding flow is handled as part of the start_ap flow
|
|
|
|
* (in bss_info_changed).
|
|
|
|
*/
|
|
|
|
ret = 0;
|
|
|
|
goto out_unlock;
|
|
|
|
case NL80211_IFTYPE_STATION:
|
|
|
|
case NL80211_IFTYPE_ADHOC:
|
|
|
|
case NL80211_IFTYPE_MONITOR:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out_unlock;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwl_mvm_binding_add_vif(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Setting the quota at this stage is only required for monitor
|
|
|
|
* interfaces. For the other types, the bss_info changed flow
|
|
|
|
* will handle quota settings.
|
|
|
|
*/
|
|
|
|
if (vif->type == NL80211_IFTYPE_MONITOR) {
|
|
|
|
ret = iwl_mvm_update_quotas(mvm, vif);
|
|
|
|
if (ret)
|
|
|
|
goto out_remove_binding;
|
|
|
|
}
|
|
|
|
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
out_remove_binding:
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
out_unlock:
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
if (ret)
|
|
|
|
mvmvif->phy_ctxt = NULL;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_vif *vif,
|
|
|
|
struct ieee80211_chanctx_conf *ctx)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
|
|
|
|
mutex_lock(&mvm->mutex);
|
|
|
|
|
|
|
|
iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
|
|
|
|
|
|
|
|
if (vif->type == NL80211_IFTYPE_AP)
|
|
|
|
goto out_unlock;
|
|
|
|
|
|
|
|
iwl_mvm_binding_remove_vif(mvm, vif);
|
|
|
|
switch (vif->type) {
|
|
|
|
case NL80211_IFTYPE_MONITOR:
|
|
|
|
iwl_mvm_update_quotas(mvm, vif);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
out_unlock:
|
|
|
|
mvmvif->phy_ctxt = NULL;
|
|
|
|
mutex_unlock(&mvm->mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
|
|
|
|
struct ieee80211_sta *sta,
|
|
|
|
bool set)
|
|
|
|
{
|
|
|
|
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
|
|
|
|
struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
|
|
|
|
|
|
|
|
if (!mvm_sta || !mvm_sta->vif) {
|
|
|
|
IWL_ERR(mvm, "Station is not associated to a vif\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ieee80211_ops iwl_mvm_hw_ops = {
|
|
|
|
.tx = iwl_mvm_mac_tx,
|
|
|
|
.ampdu_action = iwl_mvm_mac_ampdu_action,
|
|
|
|
.start = iwl_mvm_mac_start,
|
|
|
|
.restart_complete = iwl_mvm_mac_restart_complete,
|
|
|
|
.stop = iwl_mvm_mac_stop,
|
|
|
|
.add_interface = iwl_mvm_mac_add_interface,
|
|
|
|
.remove_interface = iwl_mvm_mac_remove_interface,
|
|
|
|
.config = iwl_mvm_mac_config,
|
|
|
|
.configure_filter = iwl_mvm_configure_filter,
|
|
|
|
.bss_info_changed = iwl_mvm_bss_info_changed,
|
|
|
|
.hw_scan = iwl_mvm_mac_hw_scan,
|
|
|
|
.cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
|
|
|
|
.sta_state = iwl_mvm_mac_sta_state,
|
|
|
|
.sta_notify = iwl_mvm_mac_sta_notify,
|
|
|
|
.allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
|
|
|
|
.set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
|
|
|
|
.conf_tx = iwl_mvm_mac_conf_tx,
|
|
|
|
.mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
|
|
|
|
.set_key = iwl_mvm_mac_set_key,
|
|
|
|
.update_tkip_key = iwl_mvm_mac_update_tkip_key,
|
|
|
|
.remain_on_channel = iwl_mvm_roc,
|
|
|
|
.cancel_remain_on_channel = iwl_mvm_cancel_roc,
|
|
|
|
|
|
|
|
.add_chanctx = iwl_mvm_add_chanctx,
|
|
|
|
.remove_chanctx = iwl_mvm_remove_chanctx,
|
|
|
|
.change_chanctx = iwl_mvm_change_chanctx,
|
|
|
|
.assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
|
|
|
|
.unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
|
|
|
|
|
|
|
|
.start_ap = iwl_mvm_start_ap,
|
|
|
|
.stop_ap = iwl_mvm_stop_ap,
|
|
|
|
|
|
|
|
.set_tim = iwl_mvm_set_tim,
|
|
|
|
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
|
|
/* look at d3.c */
|
|
|
|
.suspend = iwl_mvm_suspend,
|
|
|
|
.resume = iwl_mvm_resume,
|
|
|
|
.set_wakeup = iwl_mvm_set_wakeup,
|
|
|
|
.set_rekey_data = iwl_mvm_set_rekey_data,
|
|
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
|
|
.ipv6_addr_change = iwl_mvm_ipv6_addr_change,
|
|
|
|
#endif
|
|
|
|
.set_default_unicast_key = iwl_mvm_set_default_unicast_key,
|
|
|
|
#endif
|
|
|
|
};
|