diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/mac80211.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1536 |
1 files changed, 0 insertions, 1536 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c deleted file mode 100644 index e08683b20531..000000000000 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ /dev/null @@ -1,1536 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/ip.h> -#include <net/mac80211.h> -#include <net/tcp.h> - -#include "iwl-op-mode.h" -#include "iwl-io.h" -#include "mvm.h" -#include "sta.h" -#include "time-event.h" -#include "iwl-eeprom-parse.h" -#include "fw-api-scan.h" -#include "iwl-phy-db.h" - -static const struct ieee80211_iface_limit iwl_mvm_limits[] = { - { - .max = 1, - .types = BIT(NL80211_IFTYPE_STATION), - }, - { - .max = 1, - .types = BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_P2P_CLIENT) | - BIT(NL80211_IFTYPE_P2P_GO), - }, - { - .max = 1, - .types = BIT(NL80211_IFTYPE_P2P_DEVICE), - }, -}; - -static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { - { - .num_different_channels = 1, - .max_interfaces = 3, - .limits = iwl_mvm_limits, - .n_limits = ARRAY_SIZE(iwl_mvm_limits), - }, -}; - -#ifdef CONFIG_PM_SLEEP -static const struct nl80211_wowlan_tcp_data_token_feature -iwl_mvm_wowlan_tcp_token_feature = { - .min_len = 0, - .max_len = 255, - .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, -}; - -static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { - .tok = &iwl_mvm_wowlan_tcp_token_feature, - .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - - sizeof(struct ethhdr) - - sizeof(struct iphdr) - - sizeof(struct tcphdr), - .data_interval_max = 65535, /* __le16 in API */ - .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - - sizeof(struct ethhdr) - - sizeof(struct iphdr) - - sizeof(struct tcphdr), - .seq = true, -}; -#endif - -static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) -{ - int i; - - memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); - for (i = 0; i < NUM_PHY_CTX; i++) { - mvm->phy_ctxts[i].id = i; - mvm->phy_ctxts[i].ref = 0; - } -} - -int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) -{ - struct ieee80211_hw *hw = mvm->hw; - int num_mac, ret, i; - - /* Tell mac80211 our characteristics */ - hw->flags = IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_SPECTRUM_MGMT | - IEEE80211_HW_REPORTS_TX_ACK_STATUS | - IEEE80211_HW_QUEUE_CONTROL | - IEEE80211_HW_WANT_MONITOR_VIF | - IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_SUPPORTS_DYNAMIC_PS | - IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_TIMING_BEACON_ONLY | - IEEE80211_HW_CONNECTION_MONITOR; - - hw->queues = IWL_MVM_FIRST_AGG_QUEUE; - hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; - hw->rate_control_algorithm = "iwl-mvm-rs"; - - /* - * Enable 11w if advertised by firmware and software crypto - * is not enabled (as the firmware will interpret some mgmt - * packets, so enabling it with software crypto isn't safe) - */ - if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && - !iwlwifi_mod_params.sw_crypto) - hw->flags |= IEEE80211_HW_MFP_CAPABLE; - - hw->sta_data_size = sizeof(struct iwl_mvm_sta); - hw->vif_data_size = sizeof(struct iwl_mvm_vif); - hw->chanctx_data_size = sizeof(u16); - - hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_P2P_CLIENT) | - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_P2P_DEVICE); - - hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | - WIPHY_FLAG_DISABLE_BEACON_HINTS | - WIPHY_FLAG_IBSS_RSN; - - hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; - hw->wiphy->n_iface_combinations = - ARRAY_SIZE(iwl_mvm_iface_combinations); - - hw->wiphy->max_remain_on_channel_duration = 10000; - hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; - - /* Extract MAC address */ - memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); - hw->wiphy->addresses = mvm->addresses; - hw->wiphy->n_addresses = 1; - - /* Extract additional MAC addresses if available */ - num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? - min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; - - for (i = 1; i < num_mac; i++) { - memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, - ETH_ALEN); - mvm->addresses[i].addr[5]++; - hw->wiphy->n_addresses++; - } - - iwl_mvm_reset_phy_ctxts(mvm); - - /* we create the 802.11 header and a max-length SSID element */ - hw->wiphy->max_scan_ie_len = - mvm->fw->ucode_capa.max_probe_length - 24 - 34; - hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; - - if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) - hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; - if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) - hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; - - hw->wiphy->hw_version = mvm->trans->hw_id; - - if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) - hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; - else - hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - - hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | - NL80211_FEATURE_P2P_GO_OPPPS; - - mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; - -#ifdef CONFIG_PM_SLEEP - if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && - mvm->trans->ops->d3_suspend && - mvm->trans->ops->d3_resume && - device_can_wakeup(mvm->trans->dev)) { - mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | - WIPHY_WOWLAN_DISCONNECT | - WIPHY_WOWLAN_EAP_IDENTITY_REQ | - WIPHY_WOWLAN_RFKILL_RELEASE; - if (!iwlwifi_mod_params.sw_crypto) - mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | - WIPHY_WOWLAN_GTK_REKEY_FAILURE | - WIPHY_WOWLAN_4WAY_HANDSHAKE; - - mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; - mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; - mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; - mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; - hw->wiphy->wowlan = &mvm->wowlan; - } -#endif - - ret = iwl_mvm_leds_init(mvm); - if (ret) - return ret; - - return ieee80211_register_hw(mvm->hw); -} - -static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, - struct ieee80211_tx_control *control, - struct sk_buff *skb) -{ - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - - if (iwl_mvm_is_radio_killed(mvm)) { - IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); - goto drop; - } - - if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && - !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) - goto drop; - - if (control->sta) { - if (iwl_mvm_tx_skb(mvm, skb, control->sta)) - goto drop; - return; - } - - if (iwl_mvm_tx_skb_non_sta(mvm, skb)) - goto drop; - return; - drop: - ieee80211_free_txskb(hw, skb); -} - -static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum ieee80211_ampdu_mlme_action action, - struct ieee80211_sta *sta, u16 tid, - u16 *ssn, u8 buf_size) -{ - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - int ret; - - IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", - sta->addr, tid, action); - - if (!(mvm->nvm_data->sku_cap_11n_enable)) - return -EACCES; - - mutex_lock(&mvm->mutex); - - switch (action) { - case IEEE80211_AMPDU_RX_START: - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { - ret = -EINVAL; - break; - } - ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); - break; - case IEEE80211_AMPDU_RX_STOP: - ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); - break; - case IEEE80211_AMPDU_TX_START: - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { - ret = -EINVAL; - break; - } - ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); - break; - case IEEE80211_AMPDU_TX_STOP_CONT: - ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); - break; - case IEEE80211_AMPDU_TX_STOP_FLUSH: - case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: - ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); - break; - case IEEE80211_AMPDU_TX_OPERATIONAL: - ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); - break; - default: - WARN_ON_ONCE(1); - ret = -EINVAL; - break; - } - mutex_unlock(&mvm->mutex); - - return ret; -} - -static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, - struct ieee80211_vif *vif) -{ - struct iwl_mvm *mvm = data; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - - mvmvif->uploaded = false; - mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; - - /* does this make sense at all? */ - mvmvif->color++; - - spin_lock_bh(&mvm->time_event_lock); - iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); - spin_unlock_bh(&mvm->time_event_lock); - - mvmvif->phy_ctxt = NULL; -} - -static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) -{ - iwl_trans_stop_device(mvm->trans); - iwl_trans_stop_hw(mvm->trans, false); - - mvm->scan_status = IWL_MVM_SCAN_NONE; - - /* just in case one was running */ - ieee80211_remain_on_channel_expired(mvm->hw); - - ieee80211_iterate_active_interfaces_atomic( - mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, - iwl_mvm_cleanup_iterator, mvm); - - mvm->p2p_device_vif = NULL; - - iwl_mvm_reset_phy_ctxts(mvm); - memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); - memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); - - ieee80211_wake_queues(mvm->hw); - - 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 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) -{ - u16 i; - - lockdep_assert_held(&mvm->mutex); - - for (i = 0; i < NUM_PHY_CTX; i++) - if (!mvm->phy_ctxts[i].ref) - return &mvm->phy_ctxts[i]; - - IWL_ERR(mvm, "No available PHY context\n"); - return NULL; -} - -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. - * If new interface added, disable PM on existing interface. - * P2P device is a special case, since it is handled by FW similary to - * scan. If P2P deviced is added, PM remains enabled on existing - * interface. - * Note: the method below does not count the new interface being added - * at this moment. - */ - if (vif->type != NL80211_IFTYPE_P2P_DEVICE) - mvm->vif_count++; - if (mvm->vif_count > 1) { - IWL_DEBUG_MAC80211(mvm, - "Disable power on existing interfaces\n"); - ieee80211_iterate_active_interfaces_atomic( - 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); - - /* beacon filtering */ - if (!mvm->bf_allowed_vif && - vif->type == NL80211_IFTYPE_STATION && !vif->p2p){ - mvm->bf_allowed_vif = mvmvif; - vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; - } - - ret = iwl_mvm_disable_beacon_filter(mvm, vif); - if (ret) - goto out_release; - - /* - * 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) { - - mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); - if (!mvmvif->phy_ctxt) { - ret = -ENOSPC; - goto out_remove_mac; - } - - iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); - ret = iwl_mvm_binding_add_vif(mvm, vif); - if (ret) - goto out_unref_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; - } - - iwl_mvm_vif_dbgfs_register(mvm, vif); - goto out_unlock; - - out_unbind: - iwl_mvm_binding_remove_vif(mvm, vif); - out_unref_phy: - iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); - out_remove_mac: - mvmvif->phy_ctxt = NULL; - iwl_mvm_mac_ctxt_remove(mvm, vif); - out_release: - if (vif->type != NL80211_IFTYPE_P2P_DEVICE) - mvm->vif_count--; - 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_prepare_mac_removal(struct iwl_mvm *mvm, - struct ieee80211_vif *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. - */ - flush_work(&mvm->sta_drained_wk); - } -} - -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); - - iwl_mvm_prepare_mac_removal(mvm, vif); - - mutex_lock(&mvm->mutex); - - if (mvm->bf_allowed_vif == mvmvif) { - mvm->bf_allowed_vif = NULL; - vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; - } - - iwl_mvm_vif_dbgfs_clean(mvm, vif); - - /* - * For AP/GO interface, the tear down of the resources allocated to the - * interface is be handled as part of the stop_ap 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_unref(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 && vif->type != NL80211_IFTYPE_P2P_DEVICE) - 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 int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm, - struct ieee80211_vif *vif) -{ - struct iwl_mcast_filter_cmd mcast_filter_cmd = { - .pass_all = 1, - }; - - memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN); - - return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, - sizeof(mcast_filter_cmd), - &mcast_filter_cmd); -} - -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; - } - iwl_mvm_bt_coex_vif_assoc(mvm, vif); - iwl_mvm_configure_mcast_filter(mvm, vif); - } 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"); - } - ret = iwl_mvm_power_update_mode(mvm, vif); - if (ret) - IWL_ERR(mvm, "failed to update power mode\n"); - } else if (changes & BSS_CHANGED_BEACON_INFO) { - /* - * We received a beacon _after_ association so - * remove the session protection. - */ - iwl_mvm_remove_time_event(mvm, mvmvif, - &mvmvif->time_event_data); - } else if (changes & BSS_CHANGED_PS) { - 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); - - iwl_mvm_prepare_mac_removal(mvm, 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. - */ - iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames); -} - -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(&mvm->pending_frames[mvmsta->sta_id]) > 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_MVM_STATION_COUNT)) - break; - iwl_mvm_sta_modify_ps_wake(mvm, sta); - 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) { - ret = iwl_mvm_update_sta(mvm, vif, sta); - if (ret == 0) - iwl_mvm_rs_rate_init(mvm, sta, - mvmvif->phy_ctxt->channel->band); - } else if (old_state == IEEE80211_STA_ASSOC && - new_state == IEEE80211_STA_AUTHORIZED) { - /* enable beacon filtering */ - WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); - ret = 0; - } else if (old_state == IEEE80211_STA_AUTHORIZED && - new_state == IEEE80211_STA_ASSOC) { - /* disable beacon filtering */ - WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif)); - 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: - if (vif->type == NL80211_IFTYPE_AP && !sta) { - /* GTK on AP interface is a TX-only key, return 0 */ - ret = 0; - key->hw_key_idx = STA_KEY_IDX_INVALID; - break; - } - - 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 - */ - key->hw_key_idx = STA_KEY_IDX_INVALID; - ret = 0; - } - - break; - case DISABLE_KEY: - if (key->hw_key_idx == STA_KEY_IDX_INVALID) { - ret = 0; - break; - } - - 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, - enum ieee80211_roc_type type) -{ - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - struct cfg80211_chan_def chandef; - struct iwl_mvm_phy_ctxt *phy_ctxt; - int ret, i; - - IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, - duration, type); - - if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { - IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); - return -EINVAL; - } - - mutex_lock(&mvm->mutex); - - for (i = 0; i < NUM_PHY_CTX; i++) { - phy_ctxt = &mvm->phy_ctxts[i]; - if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) - continue; - - if (phy_ctxt->ref && channel == phy_ctxt->channel) { - /* - * Unbind the P2P_DEVICE from the current PHY context, - * and if the PHY context is not used remove it. - */ - ret = iwl_mvm_binding_remove_vif(mvm, vif); - if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) - goto out_unlock; - - iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); - - /* Bind the P2P_DEVICE to the current PHY Context */ - mvmvif->phy_ctxt = phy_ctxt; - - ret = iwl_mvm_binding_add_vif(mvm, vif); - if (WARN(ret, "Failed binding P2P_DEVICE\n")) - goto out_unlock; - - iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); - goto schedule_time_event; - } - } - - /* Need to update the PHY context only if the ROC channel changed */ - if (channel == mvmvif->phy_ctxt->channel) - goto schedule_time_event; - - cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); - - /* - * Change the PHY context configuration as it is currently referenced - * only by the P2P Device MAC - */ - if (mvmvif->phy_ctxt->ref == 1) { - ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, - &chandef, 1, 1); - if (ret) - goto out_unlock; - } else { - /* - * The PHY context is shared with other MACs. Need to remove the - * P2P Device from the binding, allocate an new PHY context and - * create a new binding - */ - phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); - if (!phy_ctxt) { - ret = -ENOSPC; - goto out_unlock; - } - - ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, - 1, 1); - if (ret) { - IWL_ERR(mvm, "Failed to change PHY context\n"); - goto out_unlock; - } - - /* Unbind the P2P_DEVICE from the current PHY context */ - ret = iwl_mvm_binding_remove_vif(mvm, vif); - if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) - goto out_unlock; - - iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); - - /* Bind the P2P_DEVICE to the new allocated PHY context */ - mvmvif->phy_ctxt = phy_ctxt; - - ret = iwl_mvm_binding_add_vif(mvm, vif); - if (WARN(ret, "Failed binding P2P_DEVICE\n")) - goto out_unlock; - - iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); - } - -schedule_time_event: - /* Schedule the time events */ - ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); - -out_unlock: - 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); - u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; - struct iwl_mvm_phy_ctxt *phy_ctxt; - int ret; - - IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); - - mutex_lock(&mvm->mutex); - phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); - if (!phy_ctxt) { - ret = -ENOSPC; - goto out; - } - - ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, - ctx->rx_chains_static, - ctx->rx_chains_dynamic); - if (ret) { - IWL_ERR(mvm, "Failed to add PHY context\n"); - goto out; - } - - iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); - *phy_ctxt_id = phy_ctxt->id; -out: - 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); - u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; - struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; - - mutex_lock(&mvm->mutex); - iwl_mvm_phy_ctxt_unref(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); - u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; - struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; - - if (WARN_ONCE((phy_ctxt->ref > 1) && - (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | - IEEE80211_CHANCTX_CHANGE_RX_CHAINS | - IEEE80211_CHANCTX_CHANGE_RADAR)), - "Cannot change PHY. Ref=%d, changed=0x%X\n", - phy_ctxt->ref, changed)) - return; - - 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); - u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; - struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - int ret; - - mutex_lock(&mvm->mutex); - - mvmvif->phy_ctxt = phy_ctxt; - - 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) { - mvmvif->monitor_active = true; - 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; - - switch (vif->type) { - case NL80211_IFTYPE_MONITOR: - mvmvif->monitor_active = false; - iwl_mvm_update_quotas(mvm, NULL); - break; - default: - break; - } - - iwl_mvm_binding_remove_vif(mvm, vif); -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); -} - -static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum ieee80211_rssi_event rssi_event) -{ - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - - iwl_mvm_bt_rssi_event(mvm, vif, rssi_event); -} - -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, - .rssi_callback = iwl_mvm_mac_rssi_callback, - - .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 -}; |