From: Johannes Berg <johannes.berg@xxxxxxxxx>
Add an update method that to the driver for those drivers
that want to use the rate table directly, rather than doing
per packet lookups in it.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/net/mac80211.h | 6 ++++++
net/mac80211/driver-ops.h | 14 ++++++++++++++
net/mac80211/rate.c | 3 +++
net/mac80211/trace.h | 35 ++++++++++++++++-------------------
4 files changed, 39 insertions(+), 19 deletions(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5b7a3da..168e50e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2431,6 +2431,9 @@ enum ieee80211_roc_type {
* uses hardware rate control (%IEEE80211_HW_HAS_RATE_CONTROL) since
* otherwise the rate control algorithm is notified directly.
* Must be atomic.
+ * @sta_rate_tbl_update: Notifies the driver that the rate table changed. This
+ * is only used if the configured rate control algorithm actually uses
+ * the new rate table API, and is therefore optional. Must be atomic.
*
* @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
* bursting) for a hardware TX queue.
@@ -2728,6 +2731,9 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
u32 changed);
+ void (*sta_rate_tbl_update)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
int (*conf_tx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 ac,
const struct ieee80211_tx_queue_params *params);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b931c96..6f395d1 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -600,6 +600,20 @@ 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);
+ check_sdata_in_driver(sdata);
+
+ 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 30d58d2..d93c857 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -694,6 +694,7 @@ 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;
/*
@@ -707,6 +708,8 @@ 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 c215fafd7..306c645 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -773,7 +773,7 @@ TRACE_EVENT(drv_sta_rc_update,
)
);
-TRACE_EVENT(drv_sta_add,
+DECLARE_EVENT_CLASS(local_sdata_sta_evt,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta *sta),
@@ -798,29 +798,26 @@ TRACE_EVENT(drv_sta_add,
)
);
-TRACE_EVENT(drv_sta_remove,
+
+DEFINE_EVENT(local_sdata_sta_evt, drv_sta_add,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta *sta),
+ TP_ARGS(local, sdata, sta)
+);
- TP_ARGS(local, sdata, sta),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- VIF_ENTRY
- STA_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- VIF_ASSIGN;
- STA_ASSIGN;
- ),
+DEFINE_EVENT(local_sdata_sta_evt, drv_sta_remove,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta),
+ TP_ARGS(local, sdata, sta)
+);
- TP_printk(
- LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT,
- LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG
- )
+DEFINE_EVENT(local_sdata_sta_evt, 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,
--
1.8.0
--
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