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authorHila Gonen <hila.gonen@intel.com>2013-03-13 20:00:03 +0400
committerJohannes Berg <johannes.berg@intel.com>2013-05-29 11:03:24 +0400
commitd64048edcd714095a5cf2d7019769d0d94e19892 (patch)
tree82b8a0a66772258c0a9320c5f3f14195b59b5326
parent9ce4fa7291ff797f04849075a2ee3cf60f752aee (diff)
downloadlinux-d64048edcd714095a5cf2d7019769d0d94e19892.tar.xz
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: Hila Gonen <hila.gonen@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/fw-api.h20
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c25
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mac80211.c3
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mvm.h3
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/ops.c4
5 files changed, 54 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index db6f47406ac2..cbfb3beae783 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -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,
@@ -943,6 +945,24 @@ struct iwl_card_state_notif {
} __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 )
* @calib_index: the calibration to set value for
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index dc5f4ef50198..b4e8e597d2b7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -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;
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c26f6b504460..dc50020d746d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -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;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index a288552491b3..0e7450372f2c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -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);
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 8431637e38f2..d7a199b1cdef 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -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),