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Commit 013290aa authored by Johannes Berg's avatar Johannes Berg Committed by Emmanuel Grumbach
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iwlwifi: mvm: clean up broadcast station handling 



Unify all the functions that handle the per-interface broadcast
station and make them have mvm and vif parameters. While at it,
add a new function to allocate the broadcast station instead of
open-coding it, and make the combined alloc+send and free+send
functions use the alloc/free & send functions.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 110cf810

drivers/net/wireless/iwlwifi/mvm/mac80211.c

+7 −19
Original line number Diff line number Diff line
@@ -971,19 +971,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 
	 */

	if (vif->type == NL80211_IFTYPE_AP ||

	    vif->type == NL80211_IFTYPE_ADHOC) {

		u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);



		/*

		 * The firmware defines the TFD queue mask to only be relevant

		 * for *unicast* queues, so the multicast (CAB) queue should

		 * be excluded.

		 */

		if (vif->type == NL80211_IFTYPE_AP)

			qmask &= ~BIT(vif->cab_queue);



		ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,

					       qmask,

					       ieee80211_vif_type_p2p(vif));

		ret = iwl_mvm_alloc_bcast_sta(mvm, vif);

		if (ret) {

			IWL_ERR(mvm, "Failed to allocate bcast sta\n");

			goto out_release;
@@ -1031,7 +1019,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 
		if (ret)

			goto out_unref_phy;



		ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);

		ret = iwl_mvm_add_bcast_sta(mvm, vif);

		if (ret)

			goto out_unbind;
@@ -1128,13 +1116,13 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 
			mvm->noa_duration = 0;

		}

#endif

		iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);

		iwl_mvm_dealloc_bcast_sta(mvm, vif);

		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_rm_bcast_sta(mvm, vif);

		iwl_mvm_binding_remove_vif(mvm, vif);

		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);

		mvmvif->phy_ctxt = NULL;
@@ -1633,7 +1621,7 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 


	/* 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);

	ret = iwl_mvm_send_add_bcast_sta(mvm, vif);

	if (ret)

		goto out_unbind;
@@ -1665,7 +1653,7 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 
out_quota_failed:

	iwl_mvm_power_update_mac(mvm);

	mvmvif->ap_ibss_active = false;

	iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);

	iwl_mvm_send_rm_bcast_sta(mvm, vif);

out_unbind:

	iwl_mvm_binding_remove_vif(mvm, vif);

out_remove:
@@ -1710,7 +1698,7 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 
		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);



	iwl_mvm_update_quotas(mvm, NULL);

	iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);

	iwl_mvm_send_rm_bcast_sta(mvm, vif);

	iwl_mvm_binding_remove_vif(mvm, vif);



	iwl_mvm_power_update_mac(mvm);

drivers/net/wireless/iwlwifi/mvm/sta.c

+42 −19
Original line number Diff line number Diff line
@@ -558,10 +558,10 @@ int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) 
 * @vif: the interface to which the broadcast station is added

 * @bsta: the broadcast station to add.

 */

int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

			   struct iwl_mvm_int_sta *bsta)

int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

	struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta;

	static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

	const u8 *baddr = _baddr;
@@ -579,19 +579,40 @@ int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 


/* Send the FW a request to remove the station from it's internal data

 * structures, but DO NOT remove the entry from the local data structures. */

int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm,

			      struct iwl_mvm_int_sta *bsta)

int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

	int ret;



	lockdep_assert_held(&mvm->mutex);



	ret = iwl_mvm_rm_sta_common(mvm, bsta->sta_id);

	ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id);

	if (ret)

		IWL_WARN(mvm, "Failed sending remove station\n");

	return ret;

}



int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

	u32 qmask;



	lockdep_assert_held(&mvm->mutex);



	qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);



	/*

	 * The firmware defines the TFD queue mask to only be relevant

	 * for *unicast* queues, so the multicast (CAB) queue shouldn't

	 * be included.

	 */

	if (vif->type == NL80211_IFTYPE_AP)

		qmask &= ~BIT(vif->cab_queue);



	return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, qmask,

					ieee80211_vif_type_p2p(vif));

}



/* Allocate a new station entry for the broadcast station to the given vif,

 * and send it to the FW.

 * Note that each P2P mac should have its own broadcast station.
@@ -599,45 +620,47 @@ int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, 
 * @mvm: the mvm component

 * @vif: the interface to which the broadcast station is added

 * @bsta: the broadcast station to add. */

int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

			  struct iwl_mvm_int_sta *bsta)

int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

	static const u8 baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

	u32 qmask;

	struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta;

	int ret;



	lockdep_assert_held(&mvm->mutex);



	qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);

	ret = iwl_mvm_allocate_int_sta(mvm, bsta, qmask,

				       ieee80211_vif_type_p2p(vif));

	ret = iwl_mvm_alloc_bcast_sta(mvm, vif);

	if (ret)

		return ret;



	ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr,

					 mvmvif->id, mvmvif->color);

	ret = iwl_mvm_send_add_bcast_sta(mvm, vif);



	if (ret)

		iwl_mvm_dealloc_int_sta(mvm, bsta);



	return ret;

}



void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);



	iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);

}



/*

 * Send the FW a request to remove the station from it's internal data

 * structures, and in addition remove it from the local data structure.

 */

int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta)

int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)

{

	int ret;



	lockdep_assert_held(&mvm->mutex);



	ret = iwl_mvm_rm_sta_common(mvm, bsta->sta_id);

	if (ret)

		return ret;

	ret = iwl_mvm_send_rm_bcast_sta(mvm, vif);



	iwl_mvm_dealloc_bcast_sta(mvm, vif);



	iwl_mvm_dealloc_int_sta(mvm, bsta);

	return ret;

}

drivers/net/wireless/iwlwifi/mvm/sta.h

+8 −7
Original line number Diff line number Diff line
@@ -393,13 +393,14 @@ int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta, 
			     u32 qmask, enum nl80211_iftype iftype);

void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm,

			     struct iwl_mvm_int_sta *sta);

int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

			   struct iwl_mvm_int_sta *bsta);

int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm,

			      struct iwl_mvm_int_sta *bsta);

int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

			  struct iwl_mvm_int_sta *bsta);

int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta);



int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);



void iwl_mvm_sta_drained_wk(struct work_struct *wk);

void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,

				struct ieee80211_sta *sta);