mac80211: Add new callback set_coverage_class
Mac80211 callback to driver set_coverage_class() sets slot time and ACK
timeout for given IEEE 802.11 coverage class. The callback is optional,
but it's essential for long distance links.
Signed-off-by: Lukas Turek <8an@praha12.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2e5e841..976014c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1230,6 +1230,13 @@
struct ieee80211_local *local = wiphy_priv(wiphy);
int err;
+ if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
+ err = drv_set_coverage_class(local, wiphy->coverage_class);
+
+ if (err)
+ return err;
+ }
+
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
err = drv_set_rts_threshold(local, wiphy->rts_threshold);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 8757ea7..de91d39 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -214,6 +214,21 @@
return ret;
}
+static inline int drv_set_coverage_class(struct ieee80211_local *local,
+ u8 value)
+{
+ int ret = 0;
+ might_sleep();
+
+ if (local->ops->set_coverage_class)
+ local->ops->set_coverage_class(&local->hw, value);
+ else
+ ret = -EOPNOTSUPP;
+
+ trace_drv_set_coverage_class(local, value, ret);
+ return ret;
+}
+
static inline void drv_sta_notify(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
enum sta_notify_cmd cmd,
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 977cc75..0ea2581 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -491,6 +491,29 @@
)
);
+TRACE_EVENT(drv_set_coverage_class,
+ TP_PROTO(struct ieee80211_local *local, u8 value, int ret),
+
+ TP_ARGS(local, value, ret),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u8, value)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->ret = ret;
+ __entry->value = value;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " value:%d ret:%d",
+ LOCAL_PR_ARG, __entry->value, __entry->ret
+ )
+);
+
TRACE_EVENT(drv_sta_notify,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
