Commit 449a29d0 authored by Lior Cohen's avatar Lior Cohen Committed by Luca Coelho
Browse files

iwlwifi: mvm: add notification for missed VAP 



A missed VAP notification will be sent from umac when
the station is out of sync with its associated non-transmitted
BSSID. The notification will be sent only if the transmitted
BSSID is an EMA-AP one.

The driver will consider this notification as connection loss.

Signed-off-by: default avatarLior Cohen <lior2.cohen@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 7f2ea521

drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h

+19 −0
Original line number Diff line number Diff line
@@ -77,6 +77,10 @@ enum iwl_mac_conf_subcmd_ids { 
	 * @CHANNEL_SWITCH_TIME_EVENT_CMD: &struct iwl_chan_switch_te_cmd

	 */

	CHANNEL_SWITCH_TIME_EVENT_CMD = 0x4,

	/**

	 * @MISSED_VAP_NOTIF: &struct iwl_missed_vap_notif

	 */

	MISSED_VAP_NOTIF = 0xFA,

	/**

	 * @SESSION_PROTECTION_CMD: &struct iwl_mvm_session_prot_cmd

	 */
@@ -140,6 +144,21 @@ struct iwl_probe_resp_data_notif { 
	u8 reserved[3];

} __packed; /* PROBE_RESPONSE_DATA_NTFY_API_S_VER_1 */



/**

 * struct iwl_missed_vap_notif - notification of missing vap detection

 *

 * @mac_id: the mac for which the ucode sends the notification for

 * @num_beacon_intervals_elapsed: beacons elpased with no vap profile inside

 * @profile_periodicity: beacons period to have our profile inside

 * @reserved: reserved for alignment purposes

 */

struct iwl_missed_vap_notif {

	__le32 mac_id;

	u8 num_beacon_intervals_elapsed;

	u8 profile_periodicity;

	u8 reserved[2];

} __packed; /* MISSED_VAP_NTFY_API_S_VER_1 */



/**

 * struct iwl_channel_switch_noa_notif - Channel switch NOA notification

 *

drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c

+23 −0
Original line number Diff line number Diff line
@@ -1610,3 +1610,26 @@ void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 
out_unlock:

	rcu_read_unlock();

}



void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm,

				 struct iwl_rx_cmd_buffer *rxb)

{

	struct iwl_rx_packet *pkt = rxb_addr(rxb);

	struct iwl_missed_vap_notif *mb = (void *)pkt->data;

	struct ieee80211_vif *vif;

	u32 id = le32_to_cpu(mb->mac_id);



	IWL_DEBUG_INFO(mvm,

		       "missed_vap notify mac_id=%u, num_beacon_intervals_elapsed=%u, profile_periodicity=%u\n",

		       le32_to_cpu(mb->mac_id),

		       mb->num_beacon_intervals_elapsed,

		       mb->profile_periodicity);



	rcu_read_lock();



	vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true);

	if (vif)

		iwl_mvm_connection_loss(mvm, vif, "missed vap beacon");



	rcu_read_unlock();

}

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

+2 −0
Original line number Diff line number Diff line
@@ -1680,6 +1680,8 @@ void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 
				    struct ieee80211_vif *vif);

void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm,

				   struct iwl_rx_cmd_buffer *rxb);

void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm,

				 struct iwl_rx_cmd_buffer *rxb);

void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm,

				      struct iwl_rx_cmd_buffer *rxb);

/* Bindings */

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