cfg80211: make ethtool the driver's responsibility

Currently, cfg80211 tries to implement ethtool, but that doesn't
really scale well, with all the different operations. Make the
lower-level driver responsible for it, which currently only has
an effect on mac80211. It will similarly not scale well at that
level though, since mac80211 also has many drivers.

To cleanly implement this in mac80211, introduce a new file and
move some code to appropriate places.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index ae7c16ad5f22..6fe48f64d0e4 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1719,3 +1719,137 @@ u8 sta_info_tx_streams(struct sta_info *sta)
 	return ((ht_cap->mcs.tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
 			>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1;
 }
+
+void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	struct ieee80211_local *local = sdata->local;
+	struct rate_control_ref *ref = local->rate_ctrl;
+	struct timespec uptime;
+	u64 packets = 0;
+	u32 thr = 0;
+	int i, ac;
+
+	sinfo->generation = sdata->local->sta_generation;
+
+	sinfo->filled = STATION_INFO_INACTIVE_TIME |
+			STATION_INFO_RX_BYTES64 |
+			STATION_INFO_TX_BYTES64 |
+			STATION_INFO_RX_PACKETS |
+			STATION_INFO_TX_PACKETS |
+			STATION_INFO_TX_RETRIES |
+			STATION_INFO_TX_FAILED |
+			STATION_INFO_TX_BITRATE |
+			STATION_INFO_RX_BITRATE |
+			STATION_INFO_RX_DROP_MISC |
+			STATION_INFO_BSS_PARAM |
+			STATION_INFO_CONNECTED_TIME |
+			STATION_INFO_STA_FLAGS |
+			STATION_INFO_BEACON_LOSS_COUNT;
+
+	do_posix_clock_monotonic_gettime(&uptime);
+	sinfo->connected_time = uptime.tv_sec - sta->last_connected;
+
+	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
+	sinfo->tx_bytes = 0;
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		sinfo->tx_bytes += sta->tx_bytes[ac];
+		packets += sta->tx_packets[ac];
+	}
+	sinfo->tx_packets = packets;
+	sinfo->rx_bytes = sta->rx_bytes;
+	sinfo->rx_packets = sta->rx_packets;
+	sinfo->tx_retries = sta->tx_retry_count;
+	sinfo->tx_failed = sta->tx_retry_failed;
+	sinfo->rx_dropped_misc = sta->rx_dropped;
+	sinfo->beacon_loss_count = sta->beacon_loss_count;
+
+	if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
+	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
+		sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
+		if (!local->ops->get_rssi ||
+		    drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
+			sinfo->signal = (s8)sta->last_signal;
+		sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
+	}
+	if (sta->chains) {
+		sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
+				 STATION_INFO_CHAIN_SIGNAL_AVG;
+
+		sinfo->chains = sta->chains;
+		for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
+			sinfo->chain_signal[i] = sta->chain_signal_last[i];
+			sinfo->chain_signal_avg[i] =
+				(s8) -ewma_read(&sta->chain_signal_avg[i]);
+		}
+	}
+
+	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
+	sta_set_rate_info_rx(sta, &sinfo->rxrate);
+
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+#ifdef CONFIG_MAC80211_MESH
+		sinfo->filled |= STATION_INFO_LLID |
+				 STATION_INFO_PLID |
+				 STATION_INFO_PLINK_STATE |
+				 STATION_INFO_LOCAL_PM |
+				 STATION_INFO_PEER_PM |
+				 STATION_INFO_NONPEER_PM;
+
+		sinfo->llid = sta->llid;
+		sinfo->plid = sta->plid;
+		sinfo->plink_state = sta->plink_state;
+		if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
+			sinfo->filled |= STATION_INFO_T_OFFSET;
+			sinfo->t_offset = sta->t_offset;
+		}
+		sinfo->local_pm = sta->local_pm;
+		sinfo->peer_pm = sta->peer_pm;
+		sinfo->nonpeer_pm = sta->nonpeer_pm;
+#endif
+	}
+
+	sinfo->bss_param.flags = 0;
+	if (sdata->vif.bss_conf.use_cts_prot)
+		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
+	if (sdata->vif.bss_conf.use_short_preamble)
+		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
+	if (sdata->vif.bss_conf.use_short_slot)
+		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
+	sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
+	sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
+
+	sinfo->sta_flags.set = 0;
+	sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
+				BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
+				BIT(NL80211_STA_FLAG_WME) |
+				BIT(NL80211_STA_FLAG_MFP) |
+				BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				BIT(NL80211_STA_FLAG_ASSOCIATED) |
+				BIT(NL80211_STA_FLAG_TDLS_PEER);
+	if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+	if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+	if (test_sta_flag(sta, WLAN_STA_WME))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
+	if (test_sta_flag(sta, WLAN_STA_MFP))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
+	if (test_sta_flag(sta, WLAN_STA_AUTH))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
+	if (test_sta_flag(sta, WLAN_STA_ASSOC))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
+
+	/* check if the driver has a SW RC implementation */
+	if (ref && ref->ops->get_expected_throughput)
+		thr = ref->ops->get_expected_throughput(sta->rate_ctrl_priv);
+	else
+		thr = drv_get_expected_throughput(local, &sta->sta);
+
+	if (thr != 0) {
+		sinfo->filled |= STATION_INFO_EXPECTED_THROUGHPUT;
+		sinfo->expected_throughput = thr;
+	}
+}