* regular image.
* @IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG: support getting more shared
* memory addresses from the firmware.
+ * @IWL_UCODE_TLV_CAPA_LQM_SUPPORT: supports Link Quality Measurement
*
* @NUM_IWL_UCODE_TLV_CAPA: number of bits used
*/
IWL_UCODE_TLV_CAPA_CTDP_SUPPORT = (__force iwl_ucode_tlv_capa_t)76,
IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED = (__force iwl_ucode_tlv_capa_t)77,
IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG = (__force iwl_ucode_tlv_capa_t)80,
+ IWL_UCODE_TLV_CAPA_LQM_SUPPORT = (__force iwl_ucode_tlv_capa_t)81,
NUM_IWL_UCODE_TLV_CAPA
#ifdef __CHECKER__
/* Please keep this enum *SORTED* by hex value.
* Needed for binary search, otherwise a warning will be triggered.
*/
+enum iwl_mac_conf_subcmd_ids {
+ LINK_QUALITY_MEASUREMENT_CMD = 0x1,
+ LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF = 0xFE,
+};
+
enum iwl_phy_ops_subcmd_ids {
CMD_DTS_MEASUREMENT_TRIGGER_WIDE = 0x0,
CTDP_CONFIG_CMD = 0x03,
LEGACY_GROUP = 0x0,
LONG_GROUP = 0x1,
SYSTEM_GROUP = 0x2,
+ MAC_CONF_GROUP = 0x3,
PHY_OPS_GROUP = 0x4,
DATA_PATH_GROUP = 0x5,
PROT_OFFLOAD_GROUP = 0xb,
u8 data[MAX_STORED_BEACON_SIZE];
} __packed; /* WOWLAN_STROED_BEACON_INFO_S_VER_1 */
+#define LQM_NUMBER_OF_STATIONS_IN_REPORT 16
+
+enum iwl_lqm_cmd_operatrions {
+ LQM_CMD_OPERATION_START_MEASUREMENT = 0x01,
+ LQM_CMD_OPERATION_STOP_MEASUREMENT = 0x02,
+};
+
+enum iwl_lqm_status {
+ LQM_STATUS_SUCCESS = 0,
+ LQM_STATUS_TIMEOUT = 1,
+ LQM_STATUS_ABORT = 2,
+};
+
+/**
+ * Link Quality Measurement command
+ * @cmd_operatrion: command operation to be performed (start or stop)
+ * as defined above.
+ * @mac_id: MAC ID the measurement applies to.
+ * @measurement_time: time of the total measurement to be performed, in uSec.
+ * @timeout: maximum time allowed until a response is sent, in uSec.
+ */
+struct iwl_link_qual_msrmnt_cmd {
+ __le32 cmd_operation;
+ __le32 mac_id;
+ __le32 measurement_time;
+ __le32 timeout;
+} __packed /* LQM_CMD_API_S_VER_1 */;
+
+/**
+ * Link Quality Measurement notification
+ *
+ * @frequent_stations_air_time: an array containing the total air time
+ * (in uSec) used by the most frequently transmitting stations.
+ * @number_of_stations: the number of uniqe stations included in the array
+ * (a number between 0 to 16)
+ * @total_air_time_other_stations: the total air time (uSec) used by all the
+ * stations which are not included in the above report.
+ * @time_in_measurement_window: the total time in uSec in which a measurement
+ * took place.
+ * @tx_frame_dropped: the number of TX frames dropped due to retry limit during
+ * measurement
+ * @mac_id: MAC ID the measurement applies to.
+ * @status: return status. may be one of the LQM_STATUS_* defined above.
+ * @reserved: reserved.
+ */
+struct iwl_link_qual_msrmnt_notif {
+ __le32 frequent_stations_air_time[LQM_NUMBER_OF_STATIONS_IN_REPORT];
+ __le32 number_of_stations;
+ __le32 total_air_time_other_stations;
+ __le32 time_in_measurement_window;
+ __le32 tx_frame_dropped;
+ __le32 mac_id;
+ __le32 status;
+ __le32 reserved[3];
+} __packed; /* LQM_MEASUREMENT_COMPLETE_NTF_API_S_VER1 */
+
#endif /* __fw_api_h__ */
if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
+ if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
+ mvmvif->lqm_active)
+ iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
+ 0, 0);
+
/*
* If we're not associated yet, take the (new) BSSID before associating
* so the firmware knows. If we're already associated, then use the old
break;
case NL80211_IFTYPE_STATION:
+ if (mvmvif->lqm_active)
+ iwl_mvm_send_lqm_cmd(vif,
+ LQM_CMD_OPERATION_STOP_MEASUREMENT,
+ 0, 0);
+
/* Schedule the time event to a bit before beacon 1,
* to make sure we're in the new channel when the
* GO/AP arrives.
/* TCP Checksum Offload */
netdev_features_t features;
+
+ /*
+ * link quality measurement - used to check whether this interface
+ * is in the middle of a link quality measurement
+ */
+ bool lqm_active;
};
static inline struct iwl_mvm_vif *
void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
const char *errmsg);
+/* Link Quality Measurement */
+int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif,
+ enum iwl_lqm_cmd_operatrions operation,
+ u32 duration, u32 timeout);
+bool iwl_mvm_lqm_active(struct iwl_mvm *mvm);
+
#endif /* __IWL_MVM_H__ */
HCMD_NAME(SHARED_MEM_CFG_CMD),
};
+/* Please keep this array *SORTED* by hex value.
+ * Access is done through binary search
+ */
+static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
+ HCMD_NAME(LINK_QUALITY_MEASUREMENT_CMD),
+ HCMD_NAME(LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF),
+};
+
/* Please keep this array *SORTED* by hex value.
* Access is done through binary search
*/
[LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
[LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
[SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
+ [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
[PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
[DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
[PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
out:
ieee80211_connection_loss(vif);
}
+
+int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif,
+ enum iwl_lqm_cmd_operatrions operation,
+ u32 duration, u32 timeout)
+{
+ struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_link_qual_msrmnt_cmd cmd = {
+ .cmd_operation = cpu_to_le32(operation),
+ .mac_id = cpu_to_le32(mvm_vif->id),
+ .measurement_time = cpu_to_le32(duration),
+ .timeout = cpu_to_le32(timeout),
+ };
+ u32 cmdid =
+ iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0);
+ int ret;
+
+ if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa,
+ IWL_UCODE_TLV_CAPA_LQM_SUPPORT))
+ return -EOPNOTSUPP;
+
+ if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+ return -EINVAL;
+
+ switch (operation) {
+ case LQM_CMD_OPERATION_START_MEASUREMENT:
+ if (iwl_mvm_lqm_active(mvm_vif->mvm))
+ return -EBUSY;
+ if (!vif->bss_conf.assoc)
+ return -EINVAL;
+ mvm_vif->lqm_active = true;
+ break;
+ case LQM_CMD_OPERATION_STOP_MEASUREMENT:
+ if (!iwl_mvm_lqm_active(mvm_vif->mvm))
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd),
+ &cmd);
+
+ /* command failed - roll back lqm_active state */
+ if (ret) {
+ mvm_vif->lqm_active =
+ operation == LQM_CMD_OPERATION_STOP_MEASUREMENT;
+ }
+
+ return ret;
+}
+
+static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif);
+ bool *lqm_active = _data;
+
+ *lqm_active = *lqm_active || mvm_vif->lqm_active;
+}
+
+bool iwl_mvm_lqm_active(struct iwl_mvm *mvm)
+{
+ bool ret = false;
+
+ lockdep_assert_held(&mvm->mutex);
+ ieee80211_iterate_active_interfaces_atomic(
+ mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+ iwl_mvm_lqm_active_iterator, &ret);
+
+ return ret;
+}
projects / users / willy / pagecache.git / commitdiff