iwlwifi: mvm: move queue management into sta.c

None of these functions really need to be separate, they're all
only used in sta.c, move them there and make them static.

Fix a small typo in related code while at it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

1 files changed, 0 insertions, 418 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 6c14d3413bdc..dec097b72300 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -599,36 +599,6 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 	iwl_mvm_dump_umac_error_log(mvm);
 }
 
-int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, u8 minq, u8 maxq)
-{
-	int i;
-
-	lockdep_assert_held(&mvm->queue_info_lock);
-
-	/* This should not be hit with new TX path */
-	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
-		return -ENOSPC;
-
-	/* Start by looking for a free queue */
-	for (i = minq; i <= maxq; i++)
-		if (mvm->queue_info[i].hw_queue_refcount == 0 &&
-		    mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE)
-			return i;
-
-	/*
-	 * If no free queue found - settle for an inactive one to reconfigure
-	 * Make sure that the inactive queue either already belongs to this STA,
-	 * or that if it belongs to another one - it isn't the reserved queue
-	 */
-	for (i = minq; i <= maxq; i++)
-		if (mvm->queue_info[i].status == IWL_MVM_QUEUE_INACTIVE &&
-		    (sta_id == mvm->queue_info[i].ra_sta_id ||
-		     !mvm->queue_info[i].reserved))
-			return i;
-
-	return -ENOSPC;
-}
-
 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id,
 			 int tid, int frame_limit, u16 ssn)
 {
@@ -665,229 +635,6 @@ int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id,
 	return ret;
 }
 
-static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue,
-				       int mac80211_queue, u8 sta_id, u8 tid)
-{
-	bool enable_queue = true;
-
-	spin_lock_bh(&mvm->queue_info_lock);
-
-	/* Make sure this TID isn't already enabled */
-	if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) {
-		spin_unlock_bh(&mvm->queue_info_lock);
-		IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n",
-			queue, tid);
-		return false;
-	}
-
-	/* Update mappings and refcounts */
-	if (mvm->queue_info[queue].hw_queue_refcount > 0)
-		enable_queue = false;
-
-	if (mac80211_queue != IEEE80211_INVAL_HW_QUEUE) {
-		WARN(mac80211_queue >=
-		     BITS_PER_BYTE * sizeof(mvm->hw_queue_to_mac80211[0]),
-		     "cannot track mac80211 queue %d (queue %d, sta %d, tid %d)\n",
-		     mac80211_queue, queue, sta_id, tid);
-		mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue);
-	}
-
-	mvm->queue_info[queue].hw_queue_refcount++;
-	mvm->queue_info[queue].tid_bitmap |= BIT(tid);
-	mvm->queue_info[queue].ra_sta_id = sta_id;
-
-	if (enable_queue) {
-		if (tid != IWL_MAX_TID_COUNT)
-			mvm->queue_info[queue].mac80211_ac =
-				tid_to_mac80211_ac[tid];
-		else
-			mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO;
-
-		mvm->queue_info[queue].txq_tid = tid;
-	}
-
-	IWL_DEBUG_TX_QUEUES(mvm,
-			    "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n",
-			    queue, mvm->queue_info[queue].hw_queue_refcount,
-			    mvm->hw_queue_to_mac80211[queue]);
-
-	spin_unlock_bh(&mvm->queue_info_lock);
-
-	return enable_queue;
-}
-
-int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue,
-			    u8 sta_id, u8 tid, unsigned int timeout)
-{
-	int queue, size = IWL_DEFAULT_QUEUE_SIZE;
-
-	if (tid == IWL_MAX_TID_COUNT) {
-		tid = IWL_MGMT_TID;
-		size = IWL_MGMT_QUEUE_SIZE;
-	}
-	queue = iwl_trans_txq_alloc(mvm->trans,
-				    cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE),
-				    sta_id, tid, SCD_QUEUE_CFG, size, timeout);
-
-	if (queue < 0) {
-		IWL_DEBUG_TX_QUEUES(mvm,
-				    "Failed allocating TXQ for sta %d tid %d, ret: %d\n",
-				    sta_id, tid, queue);
-		return queue;
-	}
-
-	IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n",
-			    queue, sta_id, tid);
-
-	mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue);
-	IWL_DEBUG_TX_QUEUES(mvm,
-			    "Enabling TXQ #%d (mac80211 map:0x%x)\n",
-			    queue, mvm->hw_queue_to_mac80211[queue]);
-
-	return queue;
-}
-
-bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
-			u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg,
-			unsigned int wdg_timeout)
-{
-	struct iwl_scd_txq_cfg_cmd cmd = {
-		.scd_queue = queue,
-		.action = SCD_CFG_ENABLE_QUEUE,
-		.window = cfg->frame_limit,
-		.sta_id = cfg->sta_id,
-		.ssn = cpu_to_le16(ssn),
-		.tx_fifo = cfg->fifo,
-		.aggregate = cfg->aggregate,
-		.tid = cfg->tid,
-	};
-	bool inc_ssn;
-
-	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
-		return false;
-
-	/* Send the enabling command if we need to */
-	if (!iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue,
-					cfg->sta_id, cfg->tid))
-		return false;
-
-	inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn,
-					   NULL, wdg_timeout);
-	if (inc_ssn)
-		le16_add_cpu(&cmd.ssn, 1);
-
-	WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
-	     "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
-
-	return inc_ssn;
-}
-
-int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
-			u8 tid, u8 flags)
-{
-	struct iwl_scd_txq_cfg_cmd cmd = {
-		.scd_queue = queue,
-		.action = SCD_CFG_DISABLE_QUEUE,
-	};
-	bool remove_mac_queue = mac80211_queue != IEEE80211_INVAL_HW_QUEUE;
-	int ret;
-
-	if (WARN_ON(remove_mac_queue && mac80211_queue >= IEEE80211_MAX_QUEUES))
-		return -EINVAL;
-
-	if (iwl_mvm_has_new_tx_api(mvm)) {
-		spin_lock_bh(&mvm->queue_info_lock);
-
-		if (remove_mac_queue)
-			mvm->hw_queue_to_mac80211[queue] &=
-				~BIT(mac80211_queue);
-
-		spin_unlock_bh(&mvm->queue_info_lock);
-
-		iwl_trans_txq_free(mvm->trans, queue);
-
-		return 0;
-	}
-
-	spin_lock_bh(&mvm->queue_info_lock);
-
-	if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) {
-		spin_unlock_bh(&mvm->queue_info_lock);
-		return 0;
-	}
-
-	mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
-
-	/*
-	 * If there is another TID with the same AC - don't remove the MAC queue
-	 * from the mapping
-	 */
-	if (tid < IWL_MAX_TID_COUNT) {
-		unsigned long tid_bitmap =
-			mvm->queue_info[queue].tid_bitmap;
-		int ac = tid_to_mac80211_ac[tid];
-		int i;
-
-		for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) {
-			if (tid_to_mac80211_ac[i] == ac)
-				remove_mac_queue = false;
-		}
-	}
-
-	if (remove_mac_queue)
-		mvm->hw_queue_to_mac80211[queue] &=
-			~BIT(mac80211_queue);
-	mvm->queue_info[queue].hw_queue_refcount--;
-
-	cmd.action = mvm->queue_info[queue].hw_queue_refcount ?
-		SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE;
-	if (cmd.action == SCD_CFG_DISABLE_QUEUE)
-		mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE;
-
-	IWL_DEBUG_TX_QUEUES(mvm,
-			    "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n",
-			    queue,
-			    mvm->queue_info[queue].hw_queue_refcount,
-			    mvm->hw_queue_to_mac80211[queue]);
-
-	/* If the queue is still enabled - nothing left to do in this func */
-	if (cmd.action == SCD_CFG_ENABLE_QUEUE) {
-		spin_unlock_bh(&mvm->queue_info_lock);
-		return 0;
-	}
-
-	cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
-	cmd.tid = mvm->queue_info[queue].txq_tid;
-
-	/* Make sure queue info is correct even though we overwrite it */
-	WARN(mvm->queue_info[queue].hw_queue_refcount ||
-	     mvm->queue_info[queue].tid_bitmap ||
-	     mvm->hw_queue_to_mac80211[queue],
-	     "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n",
-	     queue, mvm->queue_info[queue].hw_queue_refcount,
-	     mvm->hw_queue_to_mac80211[queue],
-	     mvm->queue_info[queue].tid_bitmap);
-
-	/* If we are here - the queue is freed and we can zero out these vals */
-	mvm->queue_info[queue].hw_queue_refcount = 0;
-	mvm->queue_info[queue].tid_bitmap = 0;
-	mvm->hw_queue_to_mac80211[queue] = 0;
-
-	/* Regardless if this is a reserved TXQ for a STA - mark it as false */
-	mvm->queue_info[queue].reserved = false;
-
-	spin_unlock_bh(&mvm->queue_info_lock);
-
-	iwl_trans_txq_disable(mvm->trans, queue, false);
-	ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
-				   sizeof(struct iwl_scd_txq_cfg_cmd), &cmd);
-
-	if (ret)
-		IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
-			queue, ret);
-	return ret;
-}
-
 /**
  * iwl_mvm_send_lq_cmd() - Send link quality command
  * @sync: This command can be sent synchronously.
@@ -1255,171 +1002,6 @@ out:
 	ieee80211_connection_loss(vif);
 }
 
-/*
- * Remove inactive TIDs of a given queue.
- * If all queue TIDs are inactive - mark the queue as inactive
- * If only some the queue TIDs are inactive - unmap them from the queue
- */
-static void iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm,
-					 struct iwl_mvm_sta *mvmsta, int queue,
-					 unsigned long tid_bitmap)
-{
-	int tid;
-
-	lockdep_assert_held(&mvmsta->lock);
-	lockdep_assert_held(&mvm->queue_info_lock);
-
-	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
-		return;
-
-	/* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */
-	for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
-		/* If some TFDs are still queued - don't mark TID as inactive */
-		if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid]))
-			tid_bitmap &= ~BIT(tid);
-
-		/* Don't mark as inactive any TID that has an active BA */
-		if (mvmsta->tid_data[tid].state != IWL_AGG_OFF)
-			tid_bitmap &= ~BIT(tid);
-	}
-
-	/* If all TIDs in the queue are inactive - mark queue as inactive. */
-	if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) {
-		mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE;
-
-		for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1)
-			mvmsta->tid_data[tid].is_tid_active = false;
-
-		IWL_DEBUG_TX_QUEUES(mvm, "Queue %d marked as inactive\n",
-				    queue);
-		return;
-	}
-
-	/*
-	 * If we are here, this is a shared queue and not all TIDs timed-out.
-	 * Remove the ones that did.
-	 */
-	for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
-		int mac_queue = mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]];
-
-		mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE;
-		mvm->hw_queue_to_mac80211[queue] &= ~BIT(mac_queue);
-		mvm->queue_info[queue].hw_queue_refcount--;
-		mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
-		mvmsta->tid_data[tid].is_tid_active = false;
-
-		IWL_DEBUG_TX_QUEUES(mvm,
-				    "Removing inactive TID %d from shared Q:%d\n",
-				    tid, queue);
-	}
-
-	IWL_DEBUG_TX_QUEUES(mvm,
-			    "TXQ #%d left with tid bitmap 0x%x\n", queue,
-			    mvm->queue_info[queue].tid_bitmap);
-
-	/*
-	 * There may be different TIDs with the same mac queues, so make
-	 * sure all TIDs have existing corresponding mac queues enabled
-	 */
-	tid_bitmap = mvm->queue_info[queue].tid_bitmap;
-	for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
-		mvm->hw_queue_to_mac80211[queue] |=
-			BIT(mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]);
-	}
-
-	/* If the queue is marked as shared - "unshare" it */
-	if (mvm->queue_info[queue].hw_queue_refcount == 1 &&
-	    mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) {
-		mvm->queue_info[queue].status = IWL_MVM_QUEUE_RECONFIGURING;
-		IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n",
-				    queue);
-	}
-}
-
-void iwl_mvm_inactivity_check(struct iwl_mvm *mvm)
-{
-	unsigned long timeout_queues_map = 0;
-	unsigned long now = jiffies;
-	int i;
-
-	if (iwl_mvm_has_new_tx_api(mvm))
-		return;
-
-	spin_lock_bh(&mvm->queue_info_lock);
-	for (i = 0; i < IWL_MAX_HW_QUEUES; i++)
-		if (mvm->queue_info[i].hw_queue_refcount > 0)
-			timeout_queues_map |= BIT(i);
-	spin_unlock_bh(&mvm->queue_info_lock);
-
-	rcu_read_lock();
-
-	/*
-	 * If a queue time outs - mark it as INACTIVE (don't remove right away
-	 * if we don't have to.) This is an optimization in case traffic comes
-	 * later, and we don't HAVE to use a currently-inactive queue
-	 */
-	for_each_set_bit(i, &timeout_queues_map, IWL_MAX_HW_QUEUES) {
-		struct ieee80211_sta *sta;
-		struct iwl_mvm_sta *mvmsta;
-		u8 sta_id;
-		int tid;
-		unsigned long inactive_tid_bitmap = 0;
-		unsigned long queue_tid_bitmap;
-
-		spin_lock_bh(&mvm->queue_info_lock);
-		queue_tid_bitmap = mvm->queue_info[i].tid_bitmap;
-
-		/* If TXQ isn't in active use anyway - nothing to do here... */
-		if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY &&
-		    mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) {
-			spin_unlock_bh(&mvm->queue_info_lock);
-			continue;
-		}
-
-		/* Check to see if there are inactive TIDs on this queue */
-		for_each_set_bit(tid, &queue_tid_bitmap,
-				 IWL_MAX_TID_COUNT + 1) {
-			if (time_after(mvm->queue_info[i].last_frame_time[tid] +
-				       IWL_MVM_DQA_QUEUE_TIMEOUT, now))
-				continue;
-
-			inactive_tid_bitmap |= BIT(tid);
-		}
-		spin_unlock_bh(&mvm->queue_info_lock);
-
-		/* If all TIDs are active - finish check on this queue */
-		if (!inactive_tid_bitmap)
-			continue;
-
-		/*
-		 * If we are here - the queue hadn't been served recently and is
-		 * in use
-		 */
-
-		sta_id = mvm->queue_info[i].ra_sta_id;
-		sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
-
-		/*
-		 * If the STA doesn't exist anymore, it isn't an error. It could
-		 * be that it was removed since getting the queues, and in this
-		 * case it should've inactivated its queues anyway.
-		 */
-		if (IS_ERR_OR_NULL(sta))
-			continue;
-
-		mvmsta = iwl_mvm_sta_from_mac80211(sta);
-
-		spin_lock_bh(&mvmsta->lock);
-		spin_lock(&mvm->queue_info_lock);
-		iwl_mvm_remove_inactive_tids(mvm, mvmsta, i,
-					     inactive_tid_bitmap);
-		spin_unlock(&mvm->queue_info_lock);
-		spin_unlock_bh(&mvmsta->lock);
-	}
-
-	rcu_read_unlock();
-}
-
 void iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
 					  struct ieee80211_vif *vif,
 					  const struct ieee80211_sta *sta,