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path: root/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rx.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/rx.c261
1 files changed, 198 insertions, 63 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
index d22f40a5354d..64446a11ef98 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
@@ -527,40 +527,19 @@ struct iwl_mvm_stat_data {
u8 *beacon_average_energy;
};
-static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
- struct ieee80211_vif *vif)
+struct iwl_mvm_stat_data_all_macs {
+ struct iwl_mvm *mvm;
+ __le32 flags;
+ struct iwl_statistics_ntfy_per_mac *per_mac_stats;
+};
+
+static void iwl_mvm_update_vif_sig(struct ieee80211_vif *vif, int sig)
{
- struct iwl_mvm_stat_data *data = _data;
- struct iwl_mvm *mvm = data->mvm;
- int sig = -data->beacon_filter_average_energy;
- int last_event;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mvm *mvm = mvmvif->mvm;
int thold = vif->bss_conf.cqm_rssi_thold;
int hyst = vif->bss_conf.cqm_rssi_hyst;
- u16 id = le32_to_cpu(data->mac_id);
- struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
- u16 vif_id = mvmvif->id;
-
- /* This doesn't need the MAC ID check since it's not taking the
- * data copied into the "data" struct, but rather the data from
- * the notification directly.
- */
- mvmvif->beacon_stats.num_beacons =
- le32_to_cpu(data->beacon_counter[vif_id]);
- mvmvif->beacon_stats.avg_signal =
- -data->beacon_average_energy[vif_id];
-
- /* make sure that beacon statistics don't go backwards with TCM
- * request to clear statistics
- */
- if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)
- mvmvif->beacon_stats.accu_num_beacons +=
- mvmvif->beacon_stats.num_beacons;
-
- if (mvmvif->id != id)
- return;
-
- if (vif->type != NL80211_IFTYPE_STATION)
- return;
+ int last_event;
if (sig == 0) {
IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n");
@@ -618,6 +597,73 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
}
}
+static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_stat_data *data = _data;
+ int sig = -data->beacon_filter_average_energy;
+ u16 id = le32_to_cpu(data->mac_id);
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ u16 vif_id = mvmvif->id;
+
+ /* This doesn't need the MAC ID check since it's not taking the
+ * data copied into the "data" struct, but rather the data from
+ * the notification directly.
+ */
+ mvmvif->beacon_stats.num_beacons =
+ le32_to_cpu(data->beacon_counter[vif_id]);
+ mvmvif->beacon_stats.avg_signal =
+ -data->beacon_average_energy[vif_id];
+
+ if (mvmvif->id != id)
+ return;
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return;
+
+ /* make sure that beacon statistics don't go backwards with TCM
+ * request to clear statistics
+ */
+ if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)
+ mvmvif->beacon_stats.accu_num_beacons +=
+ mvmvif->beacon_stats.num_beacons;
+
+ iwl_mvm_update_vif_sig(vif, sig);
+}
+
+static void iwl_mvm_stat_iterator_all_macs(void *_data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_stat_data_all_macs *data = _data;
+ struct iwl_statistics_ntfy_per_mac *mac_stats;
+ int sig;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ u16 vif_id = mvmvif->id;
+
+ if (WARN_ONCE(vif_id > MAC_INDEX_AUX, "invalid vif id: %d", vif_id))
+ return;
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return;
+
+ mac_stats = &data->per_mac_stats[vif_id];
+
+ mvmvif->beacon_stats.num_beacons =
+ le32_to_cpu(mac_stats->beacon_counter);
+ mvmvif->beacon_stats.avg_signal =
+ -le32_to_cpu(mac_stats->beacon_average_energy);
+
+ /* make sure that beacon statistics don't go backwards with TCM
+ * request to clear statistics
+ */
+ if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)
+ mvmvif->beacon_stats.accu_num_beacons +=
+ mvmvif->beacon_stats.num_beacons;
+
+ sig = -le32_to_cpu(mac_stats->beacon_filter_average_energy);
+ iwl_mvm_update_vif_sig(vif, sig);
+}
+
static inline void
iwl_mvm_rx_stats_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt)
{
@@ -684,47 +730,41 @@ iwl_mvm_update_tcm_from_stats(struct iwl_mvm *mvm, __le32 *air_time_le,
}
static void
-iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm,
- struct iwl_rx_packet *pkt)
+iwl_mvm_stats_ver_15(struct iwl_mvm *mvm,
+ struct iwl_statistics_operational_ntfy *stats)
+{
+ struct iwl_mvm_stat_data_all_macs data = {
+ .mvm = mvm,
+ .flags = stats->flags,
+ .per_mac_stats = stats->per_mac_stats,
+ };
+
+ ieee80211_iterate_active_interfaces(mvm->hw,
+ IEEE80211_IFACE_ITER_NORMAL,
+ iwl_mvm_stat_iterator_all_macs,
+ &data);
+}
+
+static void
+iwl_mvm_stats_ver_14(struct iwl_mvm *mvm,
+ struct iwl_statistics_operational_ntfy_ver_14 *stats)
{
struct iwl_mvm_stat_data data = {
.mvm = mvm,
};
+
u8 beacon_average_energy[MAC_INDEX_AUX];
- u8 average_energy[IWL_MVM_STATION_COUNT_MAX];
- struct iwl_statistics_operational_ntfy *stats;
- int expected_size;
__le32 flags;
int i;
- expected_size = sizeof(*stats);
- if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) < expected_size,
- "received invalid statistics size (%d)!, expected_size: %d\n",
- iwl_rx_packet_payload_len(pkt), expected_size))
- return;
-
- stats = (void *)&pkt->data;
-
- if (WARN_ONCE(stats->hdr.type != FW_STATISTICS_OPERATIONAL ||
- stats->hdr.version !=
- iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, STATISTICS_CMD, 0),
- "received unsupported hdr type %d, version %d\n",
- stats->hdr.type, stats->hdr.version))
- return;
-
flags = stats->flags;
- mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time);
- mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time);
- mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf);
- mvm->radio_stats.on_time_scan = le64_to_cpu(stats->on_time_scan);
-
- iwl_mvm_rx_stats_check_trigger(mvm, pkt);
data.mac_id = stats->mac_id;
data.beacon_filter_average_energy =
le32_to_cpu(stats->beacon_filter_average_energy);
data.flags = flags;
data.beacon_counter = stats->beacon_counter;
+
for (i = 0; i < ARRAY_SIZE(beacon_average_energy); i++)
beacon_average_energy[i] =
le32_to_cpu(stats->beacon_average_energy[i]);
@@ -735,9 +775,105 @@ iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_stat_iterator,
&data);
+}
+
+static bool iwl_mvm_verify_stats_len(struct iwl_mvm *mvm,
+ struct iwl_rx_packet *pkt,
+ u32 expected_size)
+{
+ struct iwl_statistics_ntfy_hdr *hdr;
+
+ if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) < expected_size,
+ "received invalid statistics size (%d)!, expected_size: %d\n",
+ iwl_rx_packet_payload_len(pkt), expected_size))
+ return false;
+
+ hdr = (void *)&pkt->data;
+
+ if (WARN_ONCE((hdr->type & IWL_STATISTICS_TYPE_MSK) != FW_STATISTICS_OPERATIONAL ||
+ hdr->version !=
+ iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, STATISTICS_NOTIFICATION, 0),
+ "received unsupported hdr type %d, version %d\n",
+ hdr->type, hdr->version))
+ return false;
+
+ if (WARN_ONCE(le16_to_cpu(hdr->size) != expected_size,
+ "received invalid statistics size in header (%d)!, expected_size: %d\n",
+ le16_to_cpu(hdr->size), expected_size))
+ return false;
+
+ return true;
+}
+
+static void
+iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm,
+ struct iwl_rx_packet *pkt)
+{
+ u8 average_energy[IWL_MVM_STATION_COUNT_MAX];
+ __le32 air_time[MAC_INDEX_AUX];
+ __le32 rx_bytes[MAC_INDEX_AUX];
+ __le32 flags = 0;
+ int i;
+ u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
+ STATISTICS_NOTIFICATION, 0);
+
+ if (WARN_ONCE(notif_ver > 15,
+ "invalid statistics version id: %d\n", notif_ver))
+ return;
+
+ if (notif_ver == 14) {
+ struct iwl_statistics_operational_ntfy_ver_14 *stats =
+ (void *)pkt->data;
+
+ if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats)))
+ return;
+
+ iwl_mvm_stats_ver_14(mvm, stats);
+
+ flags = stats->flags;
+ mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time);
+ mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time);
+ mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf);
+ mvm->radio_stats.on_time_scan =
+ le64_to_cpu(stats->on_time_scan);
+
+ for (i = 0; i < ARRAY_SIZE(average_energy); i++)
+ average_energy[i] = le32_to_cpu(stats->average_energy[i]);
+
+ for (i = 0; i < ARRAY_SIZE(air_time); i++) {
+ air_time[i] = stats->air_time[i];
+ rx_bytes[i] = stats->rx_bytes[i];
+ }
+ }
+
+ if (notif_ver == 15) {
+ struct iwl_statistics_operational_ntfy *stats =
+ (void *)pkt->data;
+
+ if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats)))
+ return;
+
+ iwl_mvm_stats_ver_15(mvm, stats);
+
+ flags = stats->flags;
+ mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time);
+ mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time);
+ mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf);
+ mvm->radio_stats.on_time_scan =
+ le64_to_cpu(stats->on_time_scan);
+
+ for (i = 0; i < ARRAY_SIZE(average_energy); i++)
+ average_energy[i] =
+ le32_to_cpu(stats->per_sta_stats[i].average_energy);
+
+ for (i = 0; i < ARRAY_SIZE(air_time); i++) {
+ air_time[i] = stats->per_mac_stats[i].air_time;
+ rx_bytes[i] = stats->per_mac_stats[i].rx_bytes;
+ }
+ }
+
+ iwl_mvm_rx_stats_check_trigger(mvm, pkt);
- for (i = 0; i < ARRAY_SIZE(average_energy); i++)
- average_energy[i] = le32_to_cpu(stats->average_energy[i]);
ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter,
average_energy);
/*
@@ -746,8 +882,7 @@ iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm,
* request and once in statistics notification.
*/
if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)
- iwl_mvm_update_tcm_from_stats(mvm, stats->air_time,
- stats->rx_bytes);
+ iwl_mvm_update_tcm_from_stats(mvm, air_time, rx_bytes);
}
void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
@@ -761,8 +896,8 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
u8 *energy;
/* From ver 14 and up we use TLV statistics format */
- if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
- STATISTICS_CMD, 0) >= 14)
+ if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
+ STATISTICS_NOTIFICATION, 0) >= 14)
return iwl_mvm_handle_rx_statistics_tlv(mvm, pkt);
if (!iwl_mvm_has_new_rx_stats_api(mvm)) {