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iwlwifi: mvm: add notification for missed VAP

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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: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Lior Cohen 2019-07-18 11:37:48 +03:00 committed by Luca Coelho
parent 7f2ea52123
commit 449a29d0fe
3 changed files with 44 additions and 0 deletions
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19
drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
View File

@ -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
*

23
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
View File

@ -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();
}

2
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -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 */