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Commit d64048ed authored by Hila Gonen's avatar Hila Gonen Committed by Johannes Berg
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iwlwifi: mvm: Add support for connection monitor offload 



The firmware supports periodic keep alive and beacon monitoring,
so advertise connection monitor offload capability by setting
IEEE80211_HW_CONNECTION_MONITOR flag. Implement missed beacons
notification handler. Call ieee80211_beacon_loss in case of
missed beacons, so AP probing by mac80211 can be triggered.

Signed-off-by: default avatarHila Gonen <hila.gonen@intel.com>
Reviewed-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 9ce4fa72

drivers/net/wireless/iwlwifi/mvm/fw-api.h

+20 −0
Original line number Diff line number Diff line
@@ -164,6 +164,8 @@ enum { 
	CARD_STATE_CMD = 0xa0,

	CARD_STATE_NOTIFICATION = 0xa1,



	MISSED_BEACONS_NOTIFICATION = 0xa2,



	REPLY_RX_PHY_CMD = 0xc0,

	REPLY_RX_MPDU_CMD = 0xc1,

	BA_NOTIF = 0xc5,
@@ -942,6 +944,24 @@ struct iwl_card_state_notif { 
	__le32 flags;

} __packed; /* CARD_STATE_NTFY_API_S_VER_1 */



/**

 * struct iwl_missed_beacons_notif - information on missed beacons

 * ( MISSED_BEACONS_NOTIFICATION = 0xa2 )

 * @mac_id: interface ID

 * @consec_missed_beacons_since_last_rx: number of consecutive missed

 *	beacons since last RX.

 * @consec_missed_beacons: number of consecutive missed beacons

 * @num_expected_beacons:

 * @num_recvd_beacons:

 */

struct iwl_missed_beacons_notif {

	__le32 mac_id;

	__le32 consec_missed_beacons_since_last_rx;

	__le32 consec_missed_beacons;

	__le32 num_expected_beacons;

	__le32 num_recvd_beacons;

} __packed; /* MISSED_BEACON_NTFY_API_S_VER_3 */



/**

 * struct iwl_set_calib_default_cmd - set default value for calibration.

 * ( SET_CALIB_DEFAULT_CMD = 0x8e )

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

+25 −0
Original line number Diff line number Diff line
@@ -1050,3 +1050,28 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 
		     rate);

	return 0;

}



static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,

					 struct ieee80211_vif *vif)

{

	u16 *id = _data;

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);



	if (mvmvif->id == *id)

		ieee80211_beacon_loss(vif);

}



int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,

				    struct iwl_rx_cmd_buffer *rxb,

				    struct iwl_device_cmd *cmd)

{

	struct iwl_rx_packet *pkt = rxb_addr(rxb);

	struct iwl_missed_beacons_notif *missed_beacons = (void *)pkt->data;

	u16 id = (u16)le32_to_cpu(missed_beacons->mac_id);



	ieee80211_iterate_active_interfaces_atomic(mvm->hw,

						   IEEE80211_IFACE_ITER_NORMAL,

						   iwl_mvm_beacon_loss_iterator,

						   &id);

	return 0;

}

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

+2 −1
Original line number Diff line number Diff line
@@ -152,7 +152,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 
		    IEEE80211_HW_SUPPORTS_PS |

		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |

		    IEEE80211_HW_AMPDU_AGGREGATION |

		    IEEE80211_HW_TIMING_BEACON_ONLY;

		    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;

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

+3 −0
Original line number Diff line number Diff line
@@ -552,6 +552,9 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 
int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,

			    struct iwl_rx_cmd_buffer *rxb,

			    struct iwl_device_cmd *cmd);

int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,

				    struct iwl_rx_cmd_buffer *rxb,

				    struct iwl_device_cmd *cmd);



/* Bindings */

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

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

+4 −0
Original line number Diff line number Diff line
@@ -227,6 +227,9 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 
	RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),

	RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),



	RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,

		   false),



	RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),

};

#undef RX_HANDLER
@@ -289,6 +292,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { 
	CMD(NET_DETECT_HOTSPOTS_CMD),

	CMD(NET_DETECT_HOTSPOTS_QUERY_CMD),

	CMD(CARD_STATE_NOTIFICATION),

	CMD(MISSED_BEACONS_NOTIFICATION),

	CMD(BT_COEX_PRIO_TABLE),

	CMD(BT_COEX_PROT_ENV),

	CMD(BT_PROFILE_NOTIFICATION),