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iwlwifi: mvm: Add support for connection monitor offload

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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: Hila Gonen <hila.gonen@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Hila Gonen 2013-03-13 18:00:03 +02:00 committed by Johannes Berg
parent 9ce4fa7291
commit d64048edcd
5 changed files with 54 additions and 1 deletions
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20
drivers/net/wireless/iwlwifi/mvm/fw-api.h
View File

@ -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 )

25
drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
View File

@ -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;
}

3
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -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;

3
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -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);

4
drivers/net/wireless/iwlwifi/mvm/ops.c
View File

@ -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),