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authorJohannes Berg <johannes.berg@intel.com>2014-11-19 00:10:42 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-11-19 19:15:50 +0100
commitf815e2b3c0126c26911cac72b837f03a31c0c2ed (patch)
treea0ffb718bd301afbbee9d106f87e7b886dbc52f0 /net/mac80211
parentnl80211: Broadcast CMD_NEW_INTERFACE and CMD_DEL_INTERFACE (diff)
downloadlinux-f815e2b3c0126c26911cac72b837f03a31c0c2ed.tar.xz
linux-f815e2b3c0126c26911cac72b837f03a31c0c2ed.zip
mac80211: notify drivers on sta rate table changes
This allows drivers with a firmware or chip-based rate lookup table to use the most recent default rate selection without having to get it from per-packet data or explicit ieee80211_get_tx_rate calls Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/driver-ops.h15
-rw-r--r--net/mac80211/rate.c3
-rw-r--r--net/mac80211/trace.h7
3 files changed, 25 insertions, 0 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 5f5fc3f3ee7c..2ebc9ead9695 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -624,6 +624,21 @@ static inline void drv_sta_rc_update(struct ieee80211_local *local,
trace_drv_return_void(local);
}
+static inline void drv_sta_rate_tbl_update(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta)
+{
+ sdata = get_bss_sdata(sdata);
+ if (!check_sdata_in_driver(sdata))
+ return;
+
+ trace_drv_sta_rate_tbl_update(local, sdata, sta);
+ if (local->ops->sta_rate_tbl_update)
+ local->ops->sta_rate_tbl_update(&local->hw, &sdata->vif, sta);
+
+ trace_drv_return_void(local);
+}
+
static inline int drv_conf_tx(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata, u16 ac,
const struct ieee80211_tx_queue_params *params)
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index f6fea67fcc5b..08ab7d6d1517 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -696,6 +696,7 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
struct ieee80211_sta *pubsta,
struct ieee80211_sta_rates *rates)
{
+ struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
struct ieee80211_sta_rates *old;
/*
@@ -709,6 +710,8 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
if (old)
kfree_rcu(old, rcu_head);
+ drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta);
+
return 0;
}
EXPORT_SYMBOL(rate_control_set_rates);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index eb91505eb43e..85ccfbe863db 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -846,6 +846,13 @@ DEFINE_EVENT(sta_event, drv_sta_pre_rcu_remove,
TP_ARGS(local, sdata, sta)
);
+DEFINE_EVENT(sta_event, drv_sta_rate_tbl_update,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta),
+ TP_ARGS(local, sdata, sta)
+);
+
TRACE_EVENT(drv_conf_tx,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,