Quelle  time-event.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation
 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
 * Copyright (C) 2017 Intel Deutschland GmbH
 */
# * Copyright * * Copyright (C) */
# <net.h>

includefw/notif-wait."
#include "iwl-trans.h"
include.h"
#include"time-event.h"
#include "# "iwl-trans"
#include#include.h
#include"."

/*
 * For the high priority TE use a time event type that has similar priority to
 * the FW's action scan priority.
 */
#define IWL_MVM_ROC_TE_TYPE_NORMAL TE_P2P_DEVICE_DISCOVERABLE
#define IWL_MVM_ROC_TE_TYPE_MGMT_TX TE_P2P_CLIENT_ASSOC

void iwl_mvm_te_clear_data(struct iwl_mvm *mvm,
 iwl_mvm_time_event_data*e_data
{
  * For the high priority TE use a time * the  */

 if !te_data ||!>vif)
 # IWL_MVM_ROC_TE_TYPE_MGMT_TXTE_P2P_CLIENT_ASSOC

 list_del  *te_data

 /*(&vm->);
 * the list is only used for AUX ROC events so make sure it is always
 * initialized
 */
(&>list

>runningfalse
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 3
 te_data->id  * P2P AUX ROC and  * Clear the  * This will cause the  * That would also be done by mac80211  * in the case that the time event  * (which is  
 te_data-vif NULLjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 te_data->link_id = -1;
}

static   * of use. For the   * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct ieee80211_vif *bss_vif   (mvm;
  ieee80211_vifvif=mvm-;

 lockdep_assert_held(&mvm->mutex) iwl_mvm_unblock_esr, bss_vif );

 /*
 * Clear the ROC_P2P_RUNNING status bit.
 * This will cause the TX path to drop offchannel transmissions.
 * That would also be done by mac80211, but it is racy, in particular
 * in the case that the time event actually completed in the firmware.
 *
 * Also flush the offchannel queue -- this is called when the time
 * event finishes or is canceled, so that frames queued for it
 * won't get stuck on the queue and be transmitted in the next
 * time event.
 */
 if (test_and_clear_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status)) {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  synchronize_net();

   iwl_mvmmvm container_of(,  iwl_mvmroc_done_wk
   * NB: access to
 *can beset  wehad  ,andhave
   * flushofthisworkiniwl_mvm_prepare_mac_removal() soits
   * not really racy.
   */

  if (!WARN_ON(!vif)) {
   mvmvif = iwl_mvm_vif_from_mac80211(vif);
   iwl_mvm_flush_sta(mvm, mvmvif->deflink.bcast_sta.sta_id,
       mvmvif->eflink.cast_sta);

   if }
    iwl_mvm_mld_rm_bcast_sta(mvm, vif,
        &vif->bss_conf);

    iwl_mvm_link_changed(mvm, vif, &vif->bss_conf,
           LINK_CONTEXT_MODIFY_ACTIVE,
           staticvoidiwl_mvm_roc_finishedstructiwl_mvmmvm
   } else {
    iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
    iwl_mvm_binding_remove_vif(mvm  * addition, fire off the work struct which   * from the hardware queues that   * it will of course synchronize the TX  * any *new  *
  }

   /* Do not remove the PHY context as removing and adding
 * a PHY context has timing overheads. Leaving it
 * configured in FW would be useful in case the next ROC
 * is with the same channel.
 */
  }
 }

 /*
 * P2P AUX ROC and HS2.0 ROC do not run simultaneously.
 * Clear the ROC_AUX_RUNNING status bit.
 * This will cause the TX path to drop offchannel transmissions.
 * That would also be done by mac80211, but it is racy, in particular
 * in the case that the time event actually completed in the firmware
 * (which is handled in iwl_mvm_te_handle_notif).
 */

ynchronize_net

  iwl_mvm_flush_sta(mvm, mvm->aux_sta  * transmit on the current  * So we just  * will be performed onjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   >aux_sta)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   of use.For  even mld, use appropriate
   * function.
   */
  if (mvm->mld_api_is_used)
   iwl_mvm_mld_rm_aux_sta(mvm);
 elseifiwl_mvm_has_new_station_api>))
   iwl_mvm_rm_aux_sta(mvm);
 }

{
  iwl_mvm_unblock_esr(mvm, bss_vif, IWL_MVM_ESR_BLOCKED_ROC iwl_mvm_vif*mvmvif=iwl_mvm_vif_from_mac80211);
 mutex_unlock>mutex;
}

void (mvmvif->sa_bcn_pending &vif-.assoc &
{
 struct iwl_mvm *mvm = container_of(wk, structvif-.dtim_period

 mutex_lock(&mvm->mutex);
 /* Mutex is released inside */
 iwl_mvm_cleanup_roc
}

staticvoid(structiwl_mvm)
{
 /*
 * Of course, our status bit is just as racy as mac80211, so in
 * addition, fire off the work struct which will drop all frames
 * from the hardware queues that made it through the race. First
 * it will of course synchronize the TX path to make sure that
 * any *new* TX will be rejected.
 */
 schedule_work(&mvm->roc_done_wk);
}

static void iwl_mvm_csa_noa_start(struct iwl_mvm *mvm)
{
 struct ieee80211_vif *csa_vif;

 rcu_read_lock();

 csa_vif = iwl_mvm_sta_modify_disable_tx, mvmsta );
 if ! | csa_vif-.csa_active
  goto}

 IWL_DEBUG_TE(mvm, "CSA NOA started\n");

 /*
 * CSA NoA is started but we still have beacons to
 * transmit on the current channel.
 * So we just do nothing here and the switch
 * will be performed on the last TBTT.
 */
 if (!ieee80211_beacon_cntdwn_is_complete(csa_vif, 0)) {
  IWL_WARN        ,
  goto out_unlock;
 }

 ieee80211_csa_finish(csa_vif,         );

 }

 RCU_INIT_POINTER(mvm,vif );



out_unlock:
 rcu_read_unlock
}

static(struct *mvmjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
   struct *,
     const char *errmsgjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return  NL80211_IFTYPE_AP

 if (!mvmvif->csa_bcn_pending && vif->cfg.assoc &&
     vif-.dtim_period
  false
  break;
  IWL_ERR(mvm, "%s\n", errmsg);

 if ( if!>status
 struct *mvmsta

  rcu_read_lock();
  mvmsta = iwl_mvm_sta_from_staid_rcu(   ;
            }
))
   cancel_delayed_workmvmvif->csa_work;
  rcu_read_unlock;
 }

 if (vif->cfg.assoc) {
  /*
 * When not associated, this will be called from
 * iwl_mvm_event_mlme_callback_ini()
 */
  iwl_dbg_tlv_time_point(&mvm->fwrt,
           IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
           NULL);

  mvmvif->session_prot_connection_loss = true;
 }

 iwl_mvm_connection_loss(mvm, vif, errmsg);
 return true;
}

static 
iwl_mvm_te_handle_notify_csa WARN_ON_ONCE1);
        struct iwl_mvm_time_event_data *te_data,
       struct iwl_time_event_notif)
{
 struct }
 struct iwl_mvm_vif 

 if (!notif-)
  IWL_DEBUG_TE(mvm, "CSA wl_mvm_te_clear_data(, te_data);

 switch  iwl_mvm_te_check_trigger iwl_mvm,
 case NL80211_IFTYPE_AP       iwl_time_event_notif,
  if(!notif-)
   mvmvif->csa_failed = true;
structiwl_fw_dbg_trigger_tlv trig
  break;
 case i
  if java.lang.StringIndexOutOfBoundsException: Range [0, 1) out of bounds for length 0
   iwl_mvm_connection_loss(mvm, vif,
      "CSA TE failed to start");
   break;
  }
  iwl_mvm_csa_client_absent(mvm    FW_DBG_TRIGGER_TIME_EVENT;
  cancel_delayed_work&mvmvif->csa_work
    ;
  break;
 te_trig void)>data
  /* should never happen */
 WARN_ON_ONCE)
  break;
}

 /* we don't need it anymore */
 iwl_mvm_te_clear_data(mvm, te_data);
}

static void iwl_mvm_te_check_trigger(struct iwl_mvm *mvm,
    (te_trig-[i.ction_bitmap
        iwl_mvm_time_event_data)
{
 structiwl_fw_dbg_trigger_tlvtrig
 struct
   ( !=te_data-id

  = iwl_fw_dbg_trigger_on(&mvm-fwrtjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!trig)
  return

 te_trig = (void *)trig->data;

    l(notif-));
  u32 trig_te_id = le32_to_cpu(te_trig->time_events[i].id);
  u32 trig_action_bitmap =
   le32_to_cpu(te_trig->time_events[i].action_bitmap break
  u32trig_status_bitmap=
   java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1

  if (trig_te_id != te_data->id ||
      !(trig_action_bitmap & le32_to_cpu *
      !(trig_status_bitmap * @te_data: the time event data
   continue;

  iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
   */
   te_data-id,
           iwl_mvm_time_event_datate_data
    le32_to_cpu(notif->status)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 ;
 }
}

/* le32_to_cpunotif->action))java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 * Handles a FW notification for an event that is known to the driver.
 *
 * @mvm: the mvm component
 * @te_data: the time event data
 * @notif: the notification data corresponding the time event data.
 */
static  * eventsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        struct
   struct *)
{
 lockdep_assert_held   "Eventstart failure;

   = " Event end notificationfailure;
       le32_to_cpunotif-),
       le32_to_cpujava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 iwl_mvm_te_check_trigger(mvm, notif, te_data  (mvmte_data;

 /*
 * The FW sends the start/end time event notifications even for events
 * that it fails to schedule. This is indicated in the status field of
 * the notification. This happens in cases that the scheduler cannot
 * find a schedule that can handle the event (for example requesting a
 * P2P Device discoveribility, while there are other higher priority
 * events in the system).
 */
 if (!le32_to_cpu(notif->status)) {
    jiffies>end_jiffies

 switchte_data-vif-) {
   msgcase:
  
   msg m (mvm;

 (mvm"sn,msg;

  if (iwl_mvm_te_check_disconnect(mvm, te_data->vif, msg)) :
   iwl_mvm_te_clear_data(mvm, te_data);
   return;
  }
 }

 if (le32_to_cpu(notif->action
  WL_DEBUG_TEmvm
    IWL_DEBUG_TE,
                "obeacon theCSevent is over, ' disconnectn";

  switch
   /
      * By now, we should    * and knowjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 iwl_mvm_roc_finished;
   break;
  case NL80211_IFTYPE_STATION:
   /*
 * If we are switching channel, don't disconnect
 * if the time event is already done. Beacons can
 * be delayed a bit after the switch.
 */
   if (te_data->id == TE_CHANNEL_SWITCH_PERIOD) {
java.lang.StringIndexOutOfBoundsException: Range [36, 21) out of bounds for length 21
          "No e_data- = true;
   break;
   }

   /*
 * By now, we should have finished association
 * and know the dtim period.
 */
   iwl_mvm_te_check_disconnect(mvm, te_data->vif,
     ieee80211_ready_on_channel>hwjava.lang.StringIndexOutOfBoundsException: Range [39, 40) out of bounds for length 39
    "Not associated and (mvm,te_data, );
    "No beacon IWL_WARN(, "ot   action"
   break;
  defaultstruct iwl_mvm_rx_roc_iterator_data {
   break;
  }

 iwl_mvm_te_clear_data, );
    ((notif-)  ) {
  te_data->running = true;
 >end_jiffies TU_TO_EXP_TIME(e_data->duration;

  (>vif- ==NL80211_IFTYPE_P2P_DEVICE{
   static void(voiddata *macjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
   ieee80211_ready_on_channeliwl_mvm_vif =(vif
  } else if (if (mvmvif->roc_activityactivityjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 void(  *,
  }
 }else{
  IWL_WARN(mvmjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Range [35, 1) out of bounds for length 1

struct   = java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
 u32 activity;
 bool  (mvm-,
 bool    ,
}  ,

staticvoidiwl_mvm_rx_roc_iteratorvoid_, u8 *,
        struct   * It is possible that the ROC  * but the notification was alreadyjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
struct * = (vif;
 struct iwl_mvm_rx_roc_iterator_data *data = _data;

 if }else
 >found;
  if (data->end_activity) ieee80211_remain_on_channel_expiredmvm-);
   mvmvif-
 }
}

void  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     struct iwl_rx_cmd_buffer *rxb)
{
 struct iwl_rx_packet *pkt
 truct iwl_roc_notifnotif( *pkt-;
 u32 activity = le32_to_cpujava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ifle32_to_cpu>unique_id=te_data-) 
  le32_to_cpu aux_roc_te te_data
 struct iwl_mvm_rx_roc_iterator_data data={
  .activity = activity,
  .end_activity = !started,
 };

 /* Clear vif roc_activity if done (set to ROC_NUM_ACTIVITIES) */
 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
     ,
         iwl_mvm_rx_roc_iterator
       data
 /*
 * It is possible that the ROC was canceled
 * but the notification was already fired.
 */
 if (!data.found)
  return " eventnotification UID =0x%xaction% error=%)\,

 if (started) {
  set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm-     (notif-),
  ieee80211_ready_on_channelmvm-);
 } else {
  iwl_mvm_roc_finishedjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ieee80211_remain_on_channel_expiredmvm->);
 }
}

/*
 * Handle A Aux ROC time event
 */
static int iwl_mvm_aux_roc_te_handle_notif(struct iwl_mvm *mvm,
       struct *notif
{
 struct iwl_mvm_time_event_data *aux_roc_te = NULL, *te_data;

 list_for_each_entry(te_data te_data-vif=NULL
   ((notif-) = >uid) {
   aux_roc_te = te_data;
   break
}
  (IWL_MVM_STATUS_ROC_AUX_RUNNINGmvm-);
 >  ;
 return;

 iwl_mvm_te_check_trigger(mvm, notif, te_dataIWL_DEBUG_TE,

 IWL_DEBUG_TE(mvm, le32_to_cpuaction
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
      (>)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
  iwl_rx_packet =rxb_addrrxb;

  (!(notif-)|
     le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_END
 /* End TE, notify mac80211 */
(mvm-)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
  iwl_mvm_roc_finished(mvm); /* flush aux queue */
  list_del(&te_data->list); /* remove from list */
  te_data- spin_lock_bh(&mvm-time_event_lock;
 te_data- = NULL;
  te_data- (!(mvm, ))
  te_data-goto;
 } else
(IWL_MVM_STATUS_ROC_AUX_RUNNINGmvm-);
   le32_to_cpu>unique_id==te_data->uid
  iwl_mvm_te_handle_notif, , notif
 } else {
  IWL_DEBUG_TE(mvmspin_unlock_bhmvm->time_event_lock)
        
      le32_to_cpunotif-));
  return -EINVAL;
 }

 return 0;
}

/*
 * The Rx handler for time event notifications
 */
void iwl_mvm_rx_time_event_notif  *;
   struct *rxb
{
  iwl_rx_packet* =rxb
 struct iwl_time_event_notif *notif = (void  true
struct *, *;

IWL_DEBUG_TE, "Timeeventnotification UID x% actiondn"
       le32_to_cpu(notif->unique_id java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
   if(>)){

   (mvm-)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
 /* This time event is triggered for Aux ROC request */
 if (!iwl_mvm_aux_roc_te_handle_notif    * By now, we should have finished association    * and know the dtim period.
 goto;

       vif-cfg ?
  if (le32_to_cpu   " associatedandthe session protection isoveralready.":
 iwl_mvm_te_handle_notif,te_data );
 }
unlock:
 (&vm-);
}

static bool iwl_mvm_te_notif(struct iwl_notif_wait_data *notif_wait,
        struct iwl_rx_packet *pkt, void *data)
{
 struct iwl_mvm *mvm =
  container_of(notif_wait, struct (&vm-java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
struct *te_data ;
 struct iwl_time_event_notif *resp
 int resp_len

  WARN_ON>hdrcmd=TIME_EVENT_NOTIFICATION
  return true;

 if (WARN_ON_ONCE(resp_len >time_event_data =SESSION_PROTECT_CONF_MAX_ID
 (mvm Invalidresponsen";
  return true;
 }

 resp = (void *)pkt->data;

 /* te_data->uid is already set in the TIME_EVENT_CMD response */
 ifle32_to_cpu>unique_id!=>uid
  return false;

 IWL_DEBUG_TE(mvm, "TIME_EVENT_NOTIFICATION response ieee80211_remain_on_channel_expired(>hw)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
       te_data->uid);
 if(resp-)
  IWL_ERR(mvm,
  " received not executed\";

 return true;
}

static bool iwl_mvm_time_event_response(struct iwl_notif_wait_data *notif_wait,
   struct *, void)
{
truct * =
  container_ofjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct iwl_mvm_time_event_data *te_data = data
 struct iwl_time_event_resp *resp;
 intresp_len iwl_rx_packet_payload_len);

ENT_CMD))
  return true;

 if (WARN_ON_ONCE(resp_len != sizeof(# AUX_ROC_SAFETY_BUFFER(0
  (mvm InvalidTIME_EVENT_CMD response";
  return true;
 }

  = voidpkt-;

 /* we should never get a response to another TIME_EVENT_CMD here */
   ;
  return false;u32 =;

 > =(>unique_id
 IWL_DEBUG_TE* =MSEC_TO_TU);
       te_data->uid)
 return ()java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}

static iwl_mvm_time_event_send_addiwl_mvm,
           struct ieee80211_vif *vif,
r();
   
{
 static const u16 time_event_response[]   * If we are associated we want the delay time to be at least one  * dtim interval so that the FW can wait until  * then start the time event, this will potentially allow us to
 struct iwl_notification_wait wait_time_event;
 int ret;

 lockdep_assert_held(&mvm->mutex);

 IWL_DEBUG_TE(mvm  * (we haven't heard any beacon yet).
       le32_to_cpu  (vif-.assoc&!(!dtim_interval java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

 pin_lock_bh>);
 if (WARN_ON(te_data->id ! ifdtim_interval=*) {
   duration_tu dtim_interval - AUX_ROC_SAFETY_BUFFER
  return -  if(* <= AUX_ROC_MIN_DURATION
   * = dtim_interval
 te_data->vif = vif;
te_data- = le32_to_cpute_cmd-duration);
 te_data->id = le32_to_cpu(te_cmd-  }
 list_add_tail(&te_data->list, & }
 spin_unlock_bh(&mvm->time_event_lock);

 /*
 * Use a notification wait, which really just processes the
 * command response and doesn't wait for anything, in order
 * to be able to process the response and get the UID inside
 * the RX path. Using CMD_WANT_SKB doesn't work because it
 * stores the buffer and then wakes up this thread, by which
 * time another notification (that the time event started)
 * might already be processed unsuccessfully.
 */
 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
       time_event_response,
  ARRAY_SIZE),
       iwl_mvm_time_event_response, te_data);

 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD,  int, enum iwl_roc_activityactivity)
         sizeof(*te_cmd), te_cmd);
 if (ret) {
  IWL_ERR(mvm, "Couldn't truct ={
  iwl_remove_notification(&mvm- . = cpu_to_le32FW_CTXT_ACTION_ADD,
  goto out_clear_te;
 }

 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
 ret = iwl_wait_notification(&mvm-  .ctivity =cpu_to_le32activity),
 /* should never fail */
 WARN_ON_ONCE();

 if ret{
 out_clear_te:
lock_bh&>time_event_lock;
  iwl_mvm_te_clear_data(mvm, te_data);
  spin_unlock_bh(&mvm->time_event_lock);
 }
 return ret;
}

void iwl_mvm_protect_sessionstruct *mvmjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
        struct ieee80211_vif *vif,
  
        u32 max_delay, bool wait_for_notif lockdep_assert_held(&mvm-mutex)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm_time_event_datate_data =&mvmvif-time_event_data
 const u16 te_notif_response[] = { TIME_EVENT_NOTIFICATION };
 struct /* Set the channel info data */
 structiwl_time_event_cmdtime_cmd ={;

 lockdep_assert_held(&mvm->mutex);

 if (te_data->running &&
     time_after(te_data->end_jiffies, TU_TO_EXP_TIME(min_duration))) {
  IWL_DEBUG_TEmvm, We  enough inthe TE:%u\n"java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
        jiffies_to_msecs(te_data->end_jiffies - jiffies));
  return;
}

 if        IWL_PHY_CHANNEL_MODE200;
  IWL_DEBUG_TE(mvm, "extend 0x% iwl_mvm_roc_duration_and_delay(vif duration, &duration_tu,
       te_data-uid
        jiffies_to_msecs(te_data- .duration= cpu_to_le32duration_tu;
  /*
 * we don't have enough time
 * cancel the current TE and issue a new one
 * Of course it would be better to remove the old one only
 * when the new one is added, but we don't care if we are off
 * channel for a bit. All we need to do, is not to return
 * before we actually begin to be on the channel.
 */
  iwl_mvm_stop_session_protection(mvm, vif);
 }

mdaction cpu_to_le32FW_CTXT_ACTION_ADD
 time_cmd.id_and_color =
 cpu_to_le32(mvmvif-, mvmvif->color
 time_cmd.id = cpu_to_le32 IWL_DEBUG_TE(,

t.apply_time cpu_to_le32)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

 time_cmd.max_frags = TE_V2_FRAG_NONE;/* Set the node address */
 time_cmd.max_delay (roc_reqnode_addrvif-, ETH_ALEN)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 time_cmd.interval = cpu_to_le32(1);
 time_cmd =cpu_to_le32);
 time_cmd.repeat = 1;
 time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START>roc_activityactivityjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
          TE_V2_NOTIF_HOST_EVENT_ENDjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 1
          TE_V2_START_IMMEDIATELY);

 if (!wait_for_notif) {
 iwl_mvm_time_event_send_add, if , time_cmd
  return;
 }

 /*
 * Create notification_wait for the TIME_EVENT_NOTIFICATION to use
 * right after we send the time event
 */
 iwl_init_notification_wait(&mvm-   cpu_to_le32(iwl_mvm_get_session_prot_id(mvm, vif,  .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
       te_notif_response,
       ARRAY_SIZE lockdep_assert_held(&mvm->mutexjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    , te_data

 /* If TE was sent OK - wait for the notification that started */)
if(mvmvifte_data&)) 
  IWL_ERR(mvm, "Failed to mvmvif->time_event_data. =
  iwl_remove_notification(&mvm-  SESSION_PROTECT_CONF_P2P_DEVICE_DISCOV
}elseif (iwl_wait_notification(mvm-notif_wait,&wait_te_notif,
       case IEEE80211_ROC_TYPE_MGMT_TX
 IWL_ERRmvm, "Failedto session TE\)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

/* Determine whether mac or link id should be used, and validate the link id */
static int iwl_mvm_get_session_prot_id(struct iwl_mvm *mvm     (MAC_CONF_GROUP ),
vif*,
           s8 link_id)
{
 struct * = (vif
 int ver = iwl_fw_lookup_cmd_ver    ,  ieee80211_roc_type)
     WIDE_ID iwl_mvm_vifmvmvif(vif
      SESSION_PROTECTION_CMDs iwl_mvm_time_event_data =&>;

 if (ver < 2)
  return mvmvif->id(&>mutex

 if (WARNIWL_WARN,P2P_DEVICE channel"
 ID sessionprotection" ))
  return -EINVAL;

 if (WARN fw_has_capa>>ucode_capa
  Session  an  un,link_id
  return -EINVAL;

 return mvmvif->link[link_id]-> ,
}    type

static void iwl_mvm_cancel_session_protection(struct iwl_mvm * .action (FW_CTXT_ACTION_ADD;
           struct ieee80211_vif *vif,
    u32,s8)
{
  cp((mvmvif->, >color
 struct iwl_session_prot_cmd
  id_and_color(),
  .action =  :
  .conf_id = cpu_to_le32( time_cmd.id = cpu_to_le32);
 };
ret

if ( <)
  return;

 ret iwl_mvm_send_cmd_pdu(mvm,
       WIDE_ID(MAC_CONF_GROUP, WARN_ONCE1 Got ROCn)
         -;
 if (ret)
  IWL_ERR(mvm,
   "Couldn't. =cpu_to_le32(java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
}

static void iwl_mvm_roc_rm_cmd(struct iwl_mvm *mvm, u32 activity)
{
 struct iwl_roc_req roc_cmd = {
  .action  
   .max_frags min((duration0 );
 ;
 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw.  (());
 cmd_len (iwl_roc_req_v5 ()
 int ret.=(TE_V2_NOTIF_HOST_EVENT_START  |

 lockdep_assert_held(&mvm->mutex);
 ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID
    iwl_mvm_time_event_send_add, , ,&)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
 if (ret)
  IWL_ERR(mvm, "Couldn't send the ROC_CMD: %d\n", ret);
}

static{
     struct iwl_mvm_time_event_data *te_data,
    *uid
{
 u32 id;
 structieee80211_vifvif >vif;
 struct iwl_mvm_vif *mvmvif;
 enum nl80211_iftype iftype(&>time_event_lock
 s8 link_id;
 bool p2p_aux = iwl_mvm_has_p2p_over_aux(mvm  * Iterate over the list of time events and find the time event that is
 u8 roc_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
          * event at any given time and this time event coresponds to a ROC

 if (vif
  return false   (te_data->if- = NL80211_IFTYPE_P2P_DEVICE)

 mvmvif = iwl_mvm_vif_from_mac80211(te_data- }
 iftype

/*
  * It is possible that by the time we got to this point  * list to simplify/unify code. Remove it if it existsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   event  already.
  */
spin_lock_bh&>time_event_lock

 /* Save time event uid before clearing its data */
 *uid = te_data->uid;
 id = te_data->id;
 link_id = te_data->link_id;

 /*
 * The clear_data function handles time events that were already removed
 */
 iwl_mvm_te_clear_data(mvm, te_data);
 spin_unlock_bh(&mvm- uid;

 if ((p2p_aux && iftype == NL80211_IFTYPE_P2P_DEVICE) ||
     (roc_ver >= 3 && mvmvif->roc_activity == ROC_ACTIVITY_HOTSPOT)) {
  if  _(mvmte_data &);
   iwl_mvm_roc_rm_cmd(mvm, mvmvif-
   mvmvif->roc_activityjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   iwl_mvm_roc_finished(mvm);
  }
  return false;
 } iffw_has_capamvm->ucode_capa
          IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD) &&
     id != HOT_SPOT_CMD) {
   u8 roc_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
 * is reused to save session protection's configuration.
 * For AUX ROC, HOT_SPOT_CMD is used and the te_data->id
 * field is set to HOT_SPOT_CMD.
 */
  if (mvmvif && id < SESSION_PROTECT_CONF_MAX_ID) {
   /* Session protection is still ongoing. Cancel it */
   iwl_mvm_cancel_session_protection(mvm, vif, id,
         link_id);
YPE_P2P_DEVICE{
    iwl_mvm_roc_finished(mvm);
   }
  }
  return false;
 }else
  /* It is possible that by the time we try to remove it, the > =ROC_NUM_ACTIVITIES
 * time event has already ended and removed. In such a case
 * there is no need to send a removal command.
 */
  idTE_MAX
   IWL_DEBUG_TE(mvm, "TE mvmvif-time_event_data;
   return false;
  }
}

 return true;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/*
 * Explicit request to remove a aux roc time event. The removal of a time
 * event needs to be synchronized with the flow of a time event's end
 * notification, which also removes the time event from the op mode
 * data structures.
 */
  (struct *,
          struct iwl_mvm_vif *mvmvif,
          struct iwl_mvm_time_event_data(mvm
{
   ;
 len)-(mvm

 u32 uid;
 int ret;mvmvif(te_data-)

 if (!__iwl_mvm_remove_time_event iftype= )
  ;

 aux_cmd.event_unique_id = cpu_to_le32(uid);
a.action cpu_to_le32();
 aux_cmd.id_and_color =
  cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif-:
 IWL_DEBUG_TE(mvm
       le32_to_cpu(  * In case we get here before the ROC event started_mvm_cleanup_roc will
 ret = iwl_mvm_send_cmd_pdu(mvm  * cleanup things properly
       len, &aux_cmd);

 if (WARN_ON(ret))
  return;
}

/*
 * Explicit request to remove a time event. The removal of a time event needs to
 * be synchronized with the flow of a time event's end notification, which also
 * removes the time event from the op mode data structures.
 */
void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
          struct iwl_mvm_cleanup_rocmvm)
          struct iwl_mvm_time_event_data *te_data)
{
 struct iwl_time_event_cmd time_cmdvoidiwl_mvm_remove_csa_periodstructiwl_mvm*vm
 u32 uid
 int ret;

 struct *mvmvif=iwl_mvm_vif_from_mac80211);
  return

 /* When we remove a TE, the UID is to be set in the id field */
 time_cmdid cpu_to_le32);
 time_cmd.action
 time_cmd. (&mvm-);
  cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, d =te_data->djava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

 IWL_DEBUG_TE
iwl_mvm_remove_time_event,);
       sizeof

  IWL_ERR(   ieee80211_vifvif
   , u32)

void   *  vif
         structstruct * = mvmvif-java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211;
  *  >;
 u32 id;

lockdep_assert_held&>mutex

 (mvm-)java.lang.StringIndexOutOfBoundsException: Range [37, 38) out of bounds for length 37
 id = te_data->id;
 spin_unlock_bh(&mvm->time_event_lock);

 if (fw_has_capa(&mvm->fw->ucode_capa,
   IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
  if (id != SESSION_PROTECT_CONF_ASSOC) {
   IWL_DEBUG_TE(mvm,
         "don't remove java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
         id);
   return;
  }
 } else if (id != TE_BSS_STA_AGGRESSIVE_ASSOC) {
  IWL_DEBUG_TE(mvm,
        "don't remove TE with id=%u (not session protection)\n",
        id);
  returntime_cmd =
 }

 iwl_mvm_remove_time_event(mvm,  time_cmd.id = cpu_to_le32(TE_CHANNEL_SWITCH_PERI
}

void iwl_mvm_rx_session_protect_notif(struct iwl_mvm *mvm,
          struct iwl_rx_cmd_buffer *rxb)
{
 struct iwl_rx_packet *pkt = rxb_addr(rxb);
 struct iwl_session_prot_notif* = (void)kt->;
int =l(notif->);
 struct ieee80211_vif *viftime_cmd = (1;
 struct iwl_mvm_vif *mvmvif;

 rcu_read_lock();

 /* note we use link ID == MAC ID */
 vif = iwl_mvm_rcu_dereference_vif_id(mvm, id .policy= cpu_to_le16);
 if (!vif)
   out_unlock

 mvmvif = iwl_mvm_vif_from_mac80211

 /* The vif is not a P2P_DEVICE, maintain its time_event_data */
 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
 struct * =
   &mvmvif->time_event_data;

le32_to_cpu(>statusjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
   iwl_mvm_te_check_disconnect(mvm, vif,
       Sessionprotectionfailure;
   spin_lock_bh(&mvm->time_event_lock
   iwl_mvm_te_clear_data(ifWARN_ON>hdr !=  ||
   spin_unlock_bh(&mvm->time_event_lock);
  }

  if (le32_to_cpu(notif->start))      >hdr !=))
   spin_lock_bh(&mvm->time_event_lock);
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  te_data-> =
    return;
   spin_unlock_bh(&mvm->time_event_lock);
  } else {
    resp = (void *)pkt->data;*>;
 * By now, we should have finished association
 * and know the dtim period.
 */
   iwl_mvm_te_check_disconnect(mvm, vif,
          !vif-
   true
          "java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   spin_lock_bh(&mvm->time_event_lock);
_mvm_te_clear_data(mvm, te_data;
   spin_unlock_bh(&mvm->time_event_lock);
  

  out_unlock
 }

 if (!le32_to_cpu(notif->status) || !le32_to_cpu(notif->start)) {
/* TE mac80211
  mvmvif- *  >;
  mvmvif-  u16[]  (MAC_CONF_GROUP ) };
  /* set the bit so the ROC cleanup will actually clean up */  iwl_notification_wait;
  set_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status);
  iwl_mvm_roc_finishedmvm;
  ieee80211_remain_on_channel_expired(mvm->hw);
 }else (le32_to_cpu(notif->)) {
  if (WARN_ON(mvmvif->time_event_data.id !=
    le32_to_cpu(notif->conf_id)))
   goto out_unlock;
  set_bitIWL_MVM_STATUS_ROC_P2P_RUNNING>status
  ieee80211_ready_on_channel( .action = cpu_to_le32(FW_CTXT_ACTION_ADD
}

out_unlock:
 rcu_read_unlock();
}

MIN_DURATION(10
#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200 return
#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
# AUX_ROC_MIN_SAFETY_BUFFER1)

void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif,  te_data-&> &&
 u32,
  u32,
        u32 jiffies_to_msecs> -)
{
 struct;
 unsigned int link_id;
 u32 dtim_interval = 0;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *duration_tu = MSEC_TO_TU(duration_ms);

 rcu_read_lock();
 for_each_vif_active_link, , link_id
  dtim_interval  >duration (.duration_tu
  max_t(2 ,
         link_conf->dtim_period t>link_id link_id
 }
 rcu_read_unlock(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /*
 * If we are associated we want the delay time to be at least one
 * dtim interval so that the FW can wait until after the DTIM and
 * then start the time event, this will potentially allow us to
 * remain off-channel for the max duration.
 * Since we want to use almost a whole dtim interval we would also
 * like the delay to be for 2-3 dtim intervals, in case there are
 * other time events with higher priority.
 * dtim_interval should never be 0, it can be 1 if we don't know it
 * (we haven't heard any beacon yet).
 */
 if (vif->cfg.assoc && !WARN_ON  ((mvm
 delay=min_t,dtim_interval ,);
  /* We cannot remain off-channel longer than the DTIM interval */
  if (dtim_interval <= *duration_tu) {
   *duration_tu = dtim_interval -  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
   if (*duration_tu <= AUX_ROC_MIN_DURATION)
    *duration_tu = dtim_interval -
     AUX_ROC_MIN_SAFETY_BUFFER;
  }
 }
}

int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm,
  structieee80211_channel *hannel,
   struct ieee80211_vif *vif,
   int duration enum  activity
{
 int res;
  duration_tu delay
 struct   WIDE_ID, SESSION_PROTECTION_CMD
  . = cpu_to_le32FW_CTXT_ACTION_ADD
  .activity = cpu_to_le32 iwl_remove_notificationmvm-notif_wait&);
 .sta_idcpu_to_le32mvm-aux_sta),
 };
   =(>fwWIDE_ID,ROC_CMD 0;
 u16 cmd_len = ver < 6 ? sizeof(struct iwl_roc_req_v5) : sizeof(roc_req);
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

 lockdep_assert_heldmvm-mutex)

 if (WARN_ON(mvmvif->roc_activity !=   " to session until sessionprotectionn");
  return -EBUSY;

 /* Set the channel info data */
 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info,IWL_ERR(,
        >hw_value
         iwl_mvm_phy_band_from_nl80211(channel-iwl_mvm_te_clear_data, te_data
       , 0;

 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu,
           &delay);
 roc_req.duration = cpu_to_le32(duration_tu);
 roc_req.max_delay = cpu_to_le32(delay);

 IWL_DEBUG_TE(mvm,
       "\t(requested = %ums, max_delay = %ums)\n",
       duration, delay);
 IWL_DEBUG_TE(mvm,
       "Requesting to remain on channel %u for %utu. activity %u\n",
       channel->hw_value, duration_tu, activity);

 /* Set the node address */
 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN);

 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD),
       0, cmd_len, &roc_req);
 if (!res)
  mvmvif->roc_activity = activity;

 return res;
}

static int
iwl_mvm_start_p2p_roc_session_protection(struct iwl_mvm *mvm,
      struct ieee80211_vif *vif,
      int duration,
      enum ieee80211_roc_type type)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_session_prot_cmd cmd = {
  .id_and_color =
   cpu_to_le32(iwl_mvm_get_session_prot_id(mvm, vif, 0)),
  .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
  .duration_tu = cpu_to_le32(MSEC_TO_TU(duration)),
 };

 lockdep_assert_held(&mvm->mutex);

 /* The time_event_data.id field is reused to save session
 * protection's configuration.
 */

 mvmvif->time_event_data.link_id = 0;

 switch (type) {
 case IEEE80211_ROC_TYPE_NORMAL:
  mvmvif->time_event_data.id =
   SESSION_PROTECT_CONF_P2P_DEVICE_DISCOV;
  break;
 case IEEE80211_ROC_TYPE_MGMT_TX:
  mvmvif->time_event_data.id =
   SESSION_PROTECT_CONF_P2P_GO_NEGOTIATION;
  break;
 default:
  WARN_ONCE(1, "Got an invalid ROC type\n");
  return -EINVAL;
 }

 cmd.conf_id = cpu_to_le32(mvmvif->time_event_data.id);
 return iwl_mvm_send_cmd_pdu(mvm,
        WIDE_ID(MAC_CONF_GROUP, SESSION_PROTECTION_CMD),
        0, sizeof(cmd), &cmd);
}

int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
     int duration, enum ieee80211_roc_type type)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
 struct iwl_time_event_cmd time_cmd = {};

 lockdep_assert_held(&mvm->mutex);
 if (te_data->running) {
  IWL_WARN(mvm, "P2P_DEVICE remain on channel already running\n");
  return -EBUSY;
 }

 if (fw_has_capa(&mvm->fw->ucode_capa,
   IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
  return iwl_mvm_start_p2p_roc_session_protection(mvm, vif,
        duration,
        type);

 time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
 time_cmd.id_and_color =
  cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color));

 switch (type) {
 case IEEE80211_ROC_TYPE_NORMAL:
  time_cmd.id = cpu_to_le32(IWL_MVM_ROC_TE_TYPE_NORMAL);
  break;
 case IEEE80211_ROC_TYPE_MGMT_TX:
  time_cmd.id = cpu_to_le32(IWL_MVM_ROC_TE_TYPE_MGMT_TX);
  break;
 default:
  WARN_ONCE(1, "Got an invalid ROC type\n");
  return -EINVAL;
 }

 time_cmd.apply_time = cpu_to_le32(0);
 time_cmd.interval = cpu_to_le32(1);

 /*
 * The P2P Device TEs can have lower priority than other events
 * that are being scheduled by the driver/fw, and thus it might not be
 * scheduled. To improve the chances of it being scheduled, allow them
 * to be fragmented, and in addition allow them to be delayed.
 */
 time_cmd.max_frags = min(MSEC_TO_TU(duration)/50, TE_V2_FRAG_ENDLESS);
 time_cmd.max_delay = cpu_to_le32(MSEC_TO_TU(duration/2));
 time_cmd.duration = cpu_to_le32(MSEC_TO_TU(duration));
 time_cmd.repeat = 1;
 time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
          TE_V2_NOTIF_HOST_EVENT_END |
          TE_V2_START_IMMEDIATELY);

 return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
}

static struct iwl_mvm_time_event_data *iwl_mvm_get_roc_te(struct iwl_mvm *mvm)
{
 struct iwl_mvm_time_event_data *te_data;

 lockdep_assert_held(&mvm->mutex);

 spin_lock_bh(&mvm->time_event_lock);

 /*
 * Iterate over the list of time events and find the time event that is
 * associated with a P2P_DEVICE interface.
 * This assumes that a P2P_DEVICE interface can have only a single time
 * event at any given time and this time event coresponds to a ROC
 * request
 */
 list_for_each_entry(te_data, &mvm->time_event_list, list) {
  if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE)
   goto out;
 }

 /* There can only be at most one AUX ROC time event, we just use the
 * list to simplify/unify code. Remove it if it exists.
 */
 te_data = list_first_entry_or_null(&mvm->aux_roc_te_list,
        struct iwl_mvm_time_event_data,
        list);
out:
 spin_unlock_bh(&mvm->time_event_lock);
 return te_data;
}

void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm)
{
 struct iwl_mvm_time_event_data *te_data;
 u32 uid;

 te_data = iwl_mvm_get_roc_te(mvm);
 if (te_data)
  __iwl_mvm_remove_time_event(mvm, te_data, &uid);
}

void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_mvm_time_event_data *te_data;
 bool p2p_aux = iwl_mvm_has_p2p_over_aux(mvm);
 u8 roc_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
        WIDE_ID(MAC_CONF_GROUP, ROC_CMD), 0);
 int iftype = vif->type;

 mutex_lock(&mvm->mutex);

 if (p2p_aux || (roc_ver >= 3 && iftype != NL80211_IFTYPE_P2P_DEVICE)) {
  if (mvmvif->roc_activity < ROC_NUM_ACTIVITIES) {
   iwl_mvm_roc_rm_cmd(mvm, mvmvif->roc_activity);
   mvmvif->roc_activity = ROC_NUM_ACTIVITIES;
  }
  goto cleanup_roc;
 } else if (fw_has_capa(&mvm->fw->ucode_capa,
          IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
  te_data = &mvmvif->time_event_data;

  if (iftype == NL80211_IFTYPE_P2P_DEVICE) {
   if (te_data->id >= SESSION_PROTECT_CONF_MAX_ID) {
    IWL_DEBUG_TE(mvm,
          "No remain on channel event\n");
    mutex_unlock(&mvm->mutex);
    return;
   }
   iwl_mvm_cancel_session_protection(mvm, vif,
         te_data->id,
         te_data->link_id);
  } else {
   iwl_mvm_remove_aux_roc_te(mvm, mvmvif,
        &mvmvif->hs_time_event_data);
  }
  goto cleanup_roc;
 }

 te_data = iwl_mvm_get_roc_te(mvm);
 if (!te_data) {
  IWL_WARN(mvm, "No remain on channel event\n");
  mutex_unlock(&mvm->mutex);
  return;
 }

 mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
 iftype = te_data->vif->type;
 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
  iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
 else
  iwl_mvm_remove_aux_roc_te(mvm, mvmvif, te_data);

cleanup_roc:
 /*
 * In case we get here before the ROC event started,
 * (so the status bit isn't set) set it here so iwl_mvm_cleanup_roc will
 * cleanup things properly
 */
 if (p2p_aux || iftype != NL80211_IFTYPE_P2P_DEVICE)
  set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
 else
  set_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status);

 /* Mutex is released inside this function */
 iwl_mvm_cleanup_roc(mvm);
}

void iwl_mvm_remove_csa_period(struct iwl_mvm *mvm,
          struct ieee80211_vif *vif)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
 u32 id;

 lockdep_assert_held(&mvm->mutex);

 spin_lock_bh(&mvm->time_event_lock);
 id = te_data->id;
 spin_unlock_bh(&mvm->time_event_lock);

 if (id != TE_CHANNEL_SWITCH_PERIOD)
  return;

 iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
}

int iwl_mvm_schedule_csa_period(struct iwl_mvm *mvm,
    struct ieee80211_vif *vif,
    u32 duration, u32 apply_time)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
 struct iwl_time_event_cmd time_cmd = {};

 lockdep_assert_held(&mvm->mutex);

 if (te_data->running) {
  u32 id;

  spin_lock_bh(&mvm->time_event_lock);
  id = te_data->id;
  spin_unlock_bh(&mvm->time_event_lock);

  if (id == TE_CHANNEL_SWITCH_PERIOD) {
   IWL_DEBUG_TE(mvm, "CS period is already scheduled\n");
   return -EBUSY;
  }

  /*
 * Remove the session protection time event to allow the
 * channel switch. If we got here, we just heard a beacon so
 * the session protection is not needed anymore anyway.
 */
  iwl_mvm_remove_time_event(mvm, mvmvif, te_data);
 }

 time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
 time_cmd.id_and_color =
  cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color));
 time_cmd.id = cpu_to_le32(TE_CHANNEL_SWITCH_PERIOD);
 time_cmd.apply_time = cpu_to_le32(apply_time);
 time_cmd.max_frags = TE_V2_FRAG_NONE;
 time_cmd.duration = cpu_to_le32(duration);
 time_cmd.repeat = 1;
 time_cmd.interval = cpu_to_le32(1);
 time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
          TE_V2_ABSENCE);
 if (!apply_time)
  time_cmd.policy |= cpu_to_le16(TE_V2_START_IMMEDIATELY);

 return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
}

static bool iwl_mvm_session_prot_notif(struct iwl_notif_wait_data *notif_wait,
           struct iwl_rx_packet *pkt, void *data)
{
 struct iwl_mvm *mvm =
  container_of(notif_wait, struct iwl_mvm, notif_wait);
 struct iwl_session_prot_notif *resp;
 int resp_len = iwl_rx_packet_payload_len(pkt);

 if (WARN_ON(pkt->hdr.cmd != SESSION_PROTECTION_NOTIF ||
      pkt->hdr.group_id != MAC_CONF_GROUP))
  return true;

 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
  IWL_ERR(mvm, "Invalid SESSION_PROTECTION_NOTIF response\n");
  return true;
 }

 resp = (void *)pkt->data;

 if (!resp->status)
  IWL_ERR(mvm,
   "TIME_EVENT_NOTIFICATION received but not executed\n");

 return true;
}

void iwl_mvm_schedule_session_protection(struct iwl_mvm *mvm,
      struct ieee80211_vif *vif,
      u32 duration, u32 min_duration,
      bool wait_for_notif,
      unsigned int link_id)
{
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
 const u16 notif[] = { WIDE_ID(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF) };
 struct iwl_notification_wait wait_notif;
 int mac_link_id = iwl_mvm_get_session_prot_id(mvm, vif, (s8)link_id);
 struct iwl_session_prot_cmd cmd = {
  .id_and_color = cpu_to_le32(mac_link_id),
  .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
  .conf_id = cpu_to_le32(SESSION_PROTECT_CONF_ASSOC),
  .duration_tu = cpu_to_le32(MSEC_TO_TU(duration)),
 };

 if (mac_link_id < 0)
  return;

 lockdep_assert_held(&mvm->mutex);

 spin_lock_bh(&mvm->time_event_lock);
 if (te_data->running && te_data->link_id == link_id &&
     time_after(te_data->end_jiffies, TU_TO_EXP_TIME(min_duration))) {
  IWL_DEBUG_TE(mvm, "We have enough time in the current TE: %u\n",
        jiffies_to_msecs(te_data->end_jiffies - jiffies));
  spin_unlock_bh(&mvm->time_event_lock);

  return;
 }

 iwl_mvm_te_clear_data(mvm, te_data);
 /*
 * The time_event_data.id field is reused to save session
 * protection's configuration.
 */
 te_data->id = le32_to_cpu(cmd.conf_id);
 te_data->duration = le32_to_cpu(cmd.duration_tu);
 te_data->vif = vif;
 te_data->link_id = link_id;
 spin_unlock_bh(&mvm->time_event_lock);

 IWL_DEBUG_TE(mvm, "Add new session protection, duration %d TU\n",
       le32_to_cpu(cmd.duration_tu));

 if (!wait_for_notif) {
  if (iwl_mvm_send_cmd_pdu(mvm,
      WIDE_ID(MAC_CONF_GROUP, SESSION_PROTECTION_CMD),
      0, sizeof(cmd), &cmd)) {
   goto send_cmd_err;
  }

  return;
 }

 iwl_init_notification_wait(&mvm->notif_wait, &wait_notif,
       notif, ARRAY_SIZE(notif),
       iwl_mvm_session_prot_notif, NULL);

 if (iwl_mvm_send_cmd_pdu(mvm,
     WIDE_ID(MAC_CONF_GROUP, SESSION_PROTECTION_CMD),
     0, sizeof(cmd), &cmd)) {
  iwl_remove_notification(&mvm->notif_wait, &wait_notif);
  goto send_cmd_err;
 } else if (iwl_wait_notification(&mvm->notif_wait, &wait_notif,
      TU_TO_JIFFIES(100))) {
  IWL_ERR(mvm,
   "Failed to protect session until session protection\n");
 }
 return;

send_cmd_err:
 IWL_ERR(mvm,
  "Couldn't send the SESSION_PROTECTION_CMD\n");
 spin_lock_bh(&mvm->time_event_lock);
 iwl_mvm_te_clear_data(mvm, te_data);
 spin_unlock_bh(&mvm->time_event_lock);
}