--- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -414,7 +414,7 @@ struct station_parameters { * @STATION_INFO_PLID: @plid filled * @STATION_INFO_PLINK_STATE: @plink_state filled * @STATION_INFO_SIGNAL: @signal filled - * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled + * @STATION_INFO_TX_BITRATE: @txrate fields are filled * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) * @STATION_INFO_RX_PACKETS: @rx_packets filled * @STATION_INFO_TX_PACKETS: @tx_packets filled @@ -422,6 +422,7 @@ struct station_parameters { * @STATION_INFO_TX_FAILED: @tx_failed filled * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled * @STATION_INFO_SIGNAL_AVG: @signal_avg filled + * @STATION_INFO_RX_BITRATE: @rxrate fields are filled */ enum station_info_flags { STATION_INFO_INACTIVE_TIME = 1<<0, @@ -438,6 +439,7 @@ enum station_info_flags { STATION_INFO_TX_FAILED = 1<<11, STATION_INFO_RX_DROP_MISC = 1<<12, STATION_INFO_SIGNAL_AVG = 1<<13, + STATION_INFO_RX_BITRATE = 1<<14, }; /** @@ -507,6 +509,7 @@ struct station_info { s8 signal; s8 signal_avg; struct rate_info txrate; + struct rate_info rxrate; u32 rx_packets; u32 tx_packets; u32 tx_retries; --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -1243,6 +1243,8 @@ enum nl80211_rate_info { * @NL80211_STA_INFO_LLID: the station's mesh LLID * @NL80211_STA_INFO_PLID: the station's mesh PLID * @NL80211_STA_INFO_PLINK_STATE: peer link state for the station + * @NL80211_STA_INFO_RX_BITRATE: last unicast rx rate, nested attribute + * containing info as possible, see &enum nl80211_sta_info_txrate. * @__NL80211_STA_INFO_AFTER_LAST: internal * @NL80211_STA_INFO_MAX: highest possible station info attribute */ @@ -1261,6 +1263,7 @@ enum nl80211_sta_info { NL80211_STA_INFO_TX_RETRIES, NL80211_STA_INFO_TX_FAILED, NL80211_STA_INFO_SIGNAL_AVG, + NL80211_STA_INFO_RX_BITRATE, /* keep last */ __NL80211_STA_INFO_AFTER_LAST, --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1968,13 +1968,41 @@ static int parse_station_flags(struct ge return 0; } +static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, + int attr) +{ + struct nlattr *rate; + u16 bitrate; + + rate = nla_nest_start(msg, attr); + if (!rate) + goto nla_put_failure; + + /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ + bitrate = cfg80211_calculate_bitrate(info); + if (bitrate > 0) + NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); + + if (info->flags & RATE_INFO_FLAGS_MCS) + NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs); + if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) + NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); + if (info->flags & RATE_INFO_FLAGS_SHORT_GI) + NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); + + nla_nest_end(msg, rate); + return true; + +nla_put_failure: + return false; +} + static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, int flags, struct net_device *dev, const u8 *mac_addr, struct station_info *sinfo) { void *hdr; - struct nlattr *sinfoattr, *txrate; - u16 bitrate; + struct nlattr *sinfoattr; hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); if (!hdr) @@ -2013,24 +2041,14 @@ static int nl80211_send_station(struct s NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, sinfo->signal_avg); if (sinfo->filled & STATION_INFO_TX_BITRATE) { - txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); - if (!txrate) + if (!nl80211_put_sta_rate(msg, &sinfo->txrate, + NL80211_STA_INFO_TX_BITRATE)) + goto nla_put_failure; + } + if (sinfo->filled & STATION_INFO_RX_BITRATE) { + if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, + NL80211_STA_INFO_RX_BITRATE)) goto nla_put_failure; - - /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ - bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); - if (bitrate > 0) - NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); - - if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) - NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, - sinfo->txrate.mcs); - if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) - NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); - if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) - NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); - - nla_nest_end(msg, txrate); } if (sinfo->filled & STATION_INFO_RX_PACKETS) NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -212,6 +212,8 @@ enum plink_state { * @rate_ctrl_priv: rate control private per-STA pointer * @last_tx_rate: rate used for last transmit, to report to userspace as * "the" transmit rate + * @last_rx_rate_idx: rx status rate index of the last data packet + * @last_rx_rate_flag: rx status flag of the last data packet * @lock: used for locking all fields that require locking, see comments * in the header file. * @flaglock: spinlock for flags accesses @@ -314,6 +316,8 @@ struct sta_info { unsigned long tx_bytes; unsigned long tx_fragments; struct ieee80211_tx_rate last_tx_rate; + int last_rx_rate_idx; + int last_rx_rate_flag; u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; /* --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1156,14 +1156,23 @@ ieee80211_rx_h_sta_process(struct ieee80 if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) { u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len, NL80211_IFTYPE_ADHOC); - if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0) + if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0) { sta->last_rx = jiffies; + if (ieee80211_is_data(hdr->frame_control)) { + sta->last_rx_rate_idx = status->rate_idx; + sta->last_rx_rate_flag = status->flag; + } + } } else if (!is_multicast_ether_addr(hdr->addr1)) { /* * Mesh beacons will update last_rx when if they are found to * match the current local configuration when processed. */ sta->last_rx = jiffies; + if (ieee80211_is_data(hdr->frame_control)) { + sta->last_rx_rate_idx = status->rate_idx; + sta->last_rx_rate_flag = status->flag; + } } if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -316,6 +316,17 @@ static int ieee80211_config_default_mgmt return 0; } +static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx) +{ + if (!(rate->flags & RATE_INFO_FLAGS_MCS)) { + struct ieee80211_supported_band *sband; + sband = sta->local->hw.wiphy->bands[ + sta->local->hw.conf.channel->band]; + rate->legacy = sband->bitrates[idx].bitrate; + } else + rate->mcs = idx; +} + static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = sta->sdata; @@ -330,6 +341,7 @@ static void sta_set_sinfo(struct sta_inf STATION_INFO_TX_RETRIES | STATION_INFO_TX_FAILED | STATION_INFO_TX_BITRATE | + STATION_INFO_RX_BITRATE | STATION_INFO_RX_DROP_MISC; sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); @@ -355,15 +367,16 @@ static void sta_set_sinfo(struct sta_inf sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI) sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx); - if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) { - struct ieee80211_supported_band *sband; - sband = sta->local->hw.wiphy->bands[ - sta->local->hw.conf.channel->band]; - sinfo->txrate.legacy = - sband->bitrates[sta->last_tx_rate.idx].bitrate; - } else - sinfo->txrate.mcs = sta->last_tx_rate.idx; + sinfo->rxrate.flags = 0; + if (sta->last_rx_rate_flag & RX_FLAG_HT) + sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS; + if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) + sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; + if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) + sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx); if (ieee80211_vif_is_mesh(&sdata->vif)) { #ifdef CONFIG_MAC80211_MESH