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-rw-r--r--include/net/mac80211.h6
-rw-r--r--net/mac80211/cfg.c15
-rw-r--r--net/mac80211/driver-ops.h18
-rw-r--r--net/mac80211/driver-trace.h27
4 files changed, 57 insertions, 9 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8aad6b37c68..63f75a06043 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1822,6 +1822,10 @@ enum ieee80211_ampdu_mlme_action {
*
* @tx_frames_pending: Check if there is any pending frame in the hardware
* queues before entering power save.
+ *
+ * @set_bitrate_mask: Set a mask of rates to be used for rate control selection
+ * when transmitting a frame. Currently only legacy rates are handled.
+ * The callback can sleep.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
@@ -1910,6 +1914,8 @@ struct ieee80211_ops {
void (*get_ringparam)(struct ieee80211_hw *hw,
u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
bool (*tx_frames_pending)(struct ieee80211_hw *hw);
+ int (*set_bitrate_mask)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ const struct cfg80211_bitrate_mask *mask);
};
/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a9ddaf63ee1..12d52cec951 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1633,16 +1633,13 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int i;
-
- /*
- * This _could_ be supported by providing a hook for
- * drivers for this function, but at this point it
- * doesn't seem worth bothering.
- */
- if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
- return -EOPNOTSUPP;
+ int i, ret;
+ if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
+ ret = drv_set_bitrate_mask(local, sdata, mask);
+ if (ret)
+ return ret;
+ }
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 00a0685f240..2ddb56e5b51 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -565,4 +565,22 @@ static inline bool drv_tx_frames_pending(struct ieee80211_local *local)
return ret;
}
+
+static inline int drv_set_bitrate_mask(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ int ret = -EOPNOTSUPP;
+
+ might_sleep();
+
+ trace_drv_set_bitrate_mask(local, sdata, mask);
+ if (local->ops->set_bitrate_mask)
+ ret = local->ops->set_bitrate_mask(&local->hw,
+ &sdata->vif, mask);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index c8c934d48b7..191e834ec46 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -989,6 +989,33 @@ DEFINE_EVENT(local_only_evt, drv_offchannel_tx_cancel_wait,
TP_ARGS(local)
);
+TRACE_EVENT(drv_set_bitrate_mask,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ const struct cfg80211_bitrate_mask *mask),
+
+ TP_ARGS(local, sdata, mask),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __field(u32, legacy_2g)
+ __field(u32, legacy_5g)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ __entry->legacy_2g = mask->control[IEEE80211_BAND_2GHZ].legacy;
+ __entry->legacy_5g = mask->control[IEEE80211_BAND_5GHZ].legacy;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " 2G Mask:0x%x 5G Mask:0x%x",
+ LOCAL_PR_ARG, VIF_PR_ARG, __entry->legacy_2g, __entry->legacy_5g
+ )
+);
+
/*
* Tracing for API calls that drivers call.
*/