[B.A.T.M.A.N.] [RFCv2 1/6] cfg80211: export expected throughput through get_station()

Antonio Quartulli
2014-03-30T20:34:59Z

From: Antonio Quartulli <antonio@open-mesh.com>

Users may need information about the expected throughput
towards a given peer computed by the RC algorithm.
Export such value through the get_station() API.

This information is useful to the batman-adv module which
will use it for its new metric computation.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
---
include/net/cfg80211.h | 63 ++++++++++++++++++++++++++++----------------------
1 file changed, 35 insertions(+), 28 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index fb8afce..4c8ebe9 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -862,36 +862,38 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
* @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
* @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
* @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
+ * @STATION_INFO_EXPECTED_THROUGHPUT: @expected_throughput filled
*/
enum station_info_flags {
- STATION_INFO_INACTIVE_TIME = 1<<0,
- STATION_INFO_RX_BYTES = 1<<1,
- STATION_INFO_TX_BYTES = 1<<2,
- STATION_INFO_LLID = 1<<3,
- STATION_INFO_PLID = 1<<4,
- STATION_INFO_PLINK_STATE = 1<<5,
- STATION_INFO_SIGNAL = 1<<6,
- 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,
- STATION_INFO_RX_DROP_MISC = 1<<12,
- STATION_INFO_SIGNAL_AVG = 1<<13,
- STATION_INFO_RX_BITRATE = 1<<14,
- STATION_INFO_BSS_PARAM = 1<<15,
- STATION_INFO_CONNECTED_TIME = 1<<16,
- STATION_INFO_ASSOC_REQ_IES = 1<<17,
- STATION_INFO_STA_FLAGS = 1<<18,
- STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
- STATION_INFO_T_OFFSET = 1<<20,
- STATION_INFO_LOCAL_PM = 1<<21,
- STATION_INFO_PEER_PM = 1<<22,
- STATION_INFO_NONPEER_PM = 1<<23,
- STATION_INFO_RX_BYTES64 = 1<<24,
- STATION_INFO_TX_BYTES64 = 1<<25,
- STATION_INFO_CHAIN_SIGNAL = 1<<26,
- STATION_INFO_CHAIN_SIGNAL_AVG = 1<<27,
+ STATION_INFO_INACTIVE_TIME = 1<<0,
+ STATION_INFO_RX_BYTES = 1<<1,
+ STATION_INFO_TX_BYTES = 1<<2,
+ STATION_INFO_LLID = 1<<3,
+ STATION_INFO_PLID = 1<<4,
+ STATION_INFO_PLINK_STATE = 1<<5,
+ STATION_INFO_SIGNAL = 1<<6,
+ 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,
+ STATION_INFO_RX_DROP_MISC = 1<<12,
+ STATION_INFO_SIGNAL_AVG = 1<<13,
+ STATION_INFO_RX_BITRATE = 1<<14,
+ STATION_INFO_BSS_PARAM = 1<<15,
+ STATION_INFO_CONNECTED_TIME = 1<<16,
+ STATION_INFO_ASSOC_REQ_IES = 1<<17,
+ STATION_INFO_STA_FLAGS = 1<<18,
+ STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
+ STATION_INFO_T_OFFSET = 1<<20,
+ STATION_INFO_LOCAL_PM = 1<<21,
+ STATION_INFO_PEER_PM = 1<<22,
+ STATION_INFO_NONPEER_PM = 1<<23,
+ STATION_INFO_RX_BYTES64 = 1<<24,
+ STATION_INFO_TX_BYTES64 = 1<<25,
+ STATION_INFO_CHAIN_SIGNAL = 1<<26,
+ STATION_INFO_CHAIN_SIGNAL_AVG = 1<<27,
+ STATION_INFO_EXPECTED_THROUGHPUT = 1<<28,
};

/**
@@ -1013,6 +1015,9 @@ struct sta_bss_parameters {
* @local_pm: local mesh STA power save mode
* @peer_pm: peer mesh STA power save mode
* @nonpeer_pm: non-peer mesh STA power save mode
+ * @expected_throughput: expected throughput as reported by the RC algorithm
+ * about the bitrate having the maximum throughput. This field can be filled
+ * only by drivers using Minstrel
*/
struct station_info {
u32 filled;
@@ -1051,6 +1056,8 @@ struct station_info {
enum nl80211_mesh_power_mode peer_pm;
enum nl80211_mesh_power_mode nonpeer_pm;

+ u32 expected_throughput;
+
/*
* Note: Add a new enum station_info_flags value for each new field and
* use it to check which fields are initialized.
--
1.8.3.2