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cfg80211: export expected throughput through get_station()

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Users may need information about the expected throughput
towards a given peer.
This value is supposed to consider the size overhead
generated by the 802.11 header.

This value is exported in kbps through the get_station() API
by including it into the station_info object.
Moreover, it is sent to user space when replying to the
nl80211 GET_STATION command.

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

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Antonio Quartulli
2014-05-19 21:53:19 +02:00
committed by Johannes Berg
parent 922bd80fc3
commit 867d849fc8
3 changed files with 41 additions and 28 deletions
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62
include/net/cfg80211.h
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@@ -873,36 +873,38 @@ 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 = BIT(0),
STATION_INFO_RX_BYTES = BIT(1),
STATION_INFO_TX_BYTES = BIT(2),
STATION_INFO_LLID = BIT(3),
STATION_INFO_PLID = BIT(4),
STATION_INFO_PLINK_STATE = BIT(5),
STATION_INFO_SIGNAL = BIT(6),
STATION_INFO_TX_BITRATE = BIT(7),
STATION_INFO_RX_PACKETS = BIT(8),
STATION_INFO_TX_PACKETS = BIT(9),
STATION_INFO_TX_RETRIES = BIT(10),
STATION_INFO_TX_FAILED = BIT(11),
STATION_INFO_RX_DROP_MISC = BIT(12),
STATION_INFO_SIGNAL_AVG = BIT(13),
STATION_INFO_RX_BITRATE = BIT(14),
STATION_INFO_BSS_PARAM = BIT(15),
STATION_INFO_CONNECTED_TIME = BIT(16),
STATION_INFO_ASSOC_REQ_IES = BIT(17),
STATION_INFO_STA_FLAGS = BIT(18),
STATION_INFO_BEACON_LOSS_COUNT = BIT(19),
STATION_INFO_T_OFFSET = BIT(20),
STATION_INFO_LOCAL_PM = BIT(21),
STATION_INFO_PEER_PM = BIT(22),
STATION_INFO_NONPEER_PM = BIT(23),
STATION_INFO_RX_BYTES64 = BIT(24),
STATION_INFO_TX_BYTES64 = BIT(25),
STATION_INFO_CHAIN_SIGNAL = BIT(26),
STATION_INFO_CHAIN_SIGNAL_AVG = BIT(27),
STATION_INFO_EXPECTED_THROUGHPUT = BIT(28),
};
/**
@@ -1024,6 +1026,8 @@ 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 in kbps (including 802.11 headers)
* towards this station.
*/
struct station_info {
u32 filled;
@@ -1062,6 +1066,8 @@ 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.