On Wed, 2010-10-06 at 18:34 +0900, Bruno Randolf wrote:
> This information is already available in mac80211, we just need to export it
> via cfg80211 and nl80211.
Looks sane enough to me:
Acked-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> Signed-off-by: Bruno Randolf <br1@xxxxxxxxxxx>
> ---
> include/linux/nl80211.h | 4 ++++
> include/net/cfg80211.h | 8 ++++++++
> net/mac80211/cfg.c | 4 ++++
> net/wireless/nl80211.c | 6 ++++++
> 4 files changed, 22 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
> index 3a491d5..d0d9c8e 100644
> --- a/include/linux/nl80211.h
> +++ b/include/linux/nl80211.h
> @@ -1129,6 +1129,8 @@ enum nl80211_rate_info {
> * @NL80211_STA_INFO_RX_PACKETS: total received packet (u32, from this station)
> * @NL80211_STA_INFO_TX_PACKETS: total transmitted packets (u32, to this
> * station)
> + * @NL80211_STA_INFO_TX_RETRIES: total retries (u32, to this station)
> + * @NL80211_STA_INFO_TX_FAILED: total failed packets (u32, to this station)
> */
> enum nl80211_sta_info {
> __NL80211_STA_INFO_INVALID,
> @@ -1142,6 +1144,8 @@ enum nl80211_sta_info {
> NL80211_STA_INFO_TX_BITRATE,
> NL80211_STA_INFO_RX_PACKETS,
> NL80211_STA_INFO_TX_PACKETS,
> + NL80211_STA_INFO_TX_RETRIES,
> + NL80211_STA_INFO_TX_FAILED,
>
> /* keep last */
> __NL80211_STA_INFO_AFTER_LAST,
> diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
> index e86c890..432bf59 100644
> --- a/include/net/cfg80211.h
> +++ b/include/net/cfg80211.h
> @@ -405,6 +405,8 @@ struct station_parameters {
> * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
> * @STATION_INFO_RX_PACKETS: @rx_packets filled
> * @STATION_INFO_TX_PACKETS: @tx_packets filled
> + * @STATION_INFO_TX_RETRIES: @tx_retries filled
> + * @STATION_INFO_TX_FAILED: @tx_failed filled
> */
> enum station_info_flags {
> STATION_INFO_INACTIVE_TIME = 1<<0,
> @@ -417,6 +419,8 @@ enum station_info_flags {
> STATION_INFO_TX_BITRATE = 1<<7,
> STATION_INFO_RX_PACKETS = 1<<8,
> STATION_INFO_TX_PACKETS = 1<<9,
> + STATION_INFO_TX_RETRIES = 1<<10,
> + STATION_INFO_TX_FAILED = 1<<11,
> };
>
> /**
> @@ -466,6 +470,8 @@ struct rate_info {
> * @txrate: current unicast bitrate to this station
> * @rx_packets: packets received from this station
> * @tx_packets: packets transmitted to this station
> + * @tx_retries: cumulative retry counts
> + * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
> * @generation: generation number for nl80211 dumps.
> * This number should increase every time the list of stations
> * changes, i.e. when a station is added or removed, so that
> @@ -483,6 +489,8 @@ struct station_info {
> struct rate_info txrate;
> u32 rx_packets;
> u32 tx_packets;
> + u32 tx_retries;
> + u32 tx_failed;
>
> int generation;
> };
> diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
> index c981604..d5a06e5 100644
> --- a/net/mac80211/cfg.c
> +++ b/net/mac80211/cfg.c
> @@ -285,6 +285,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
> STATION_INFO_TX_BYTES |
> STATION_INFO_RX_PACKETS |
> STATION_INFO_TX_PACKETS |
> + STATION_INFO_TX_RETRIES |
> + STATION_INFO_TX_FAILED |
> STATION_INFO_TX_BITRATE;
>
> sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
> @@ -292,6 +294,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
> sinfo->tx_bytes = sta->tx_bytes;
> sinfo->rx_packets = sta->rx_packets;
> sinfo->tx_packets = sta->tx_packets;
> + sinfo->tx_retries = sta->tx_retry_count;
> + sinfo->tx_failed = sta->tx_retry_failed;
>
> if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
> (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
> diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
> index 26062e1..af30a03 100644
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -1923,6 +1923,12 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
> if (sinfo->filled & STATION_INFO_TX_PACKETS)
> NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
> sinfo->tx_packets);
> + if (sinfo->filled & STATION_INFO_TX_RETRIES)
> + NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
> + sinfo->tx_retries);
> + if (sinfo->filled & STATION_INFO_TX_FAILED)
> + NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
> + sinfo->tx_failed);
> nla_nest_end(msg, sinfoattr);
>
> return genlmsg_end(msg, hdr);
>
>
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