minstrel_ht: fixed rate mode through debugfs

Found several threads about fixed rate mode in minstrel_ht for test
environments, but no patches for it.

This patch provides such a mode through debugfs.

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
index 0f5a83370aa6..5d278eccaef0 100644
--- a/net/mac80211/rc80211_minstrel.h
+++ b/net/mac80211/rc80211_minstrel.h
@@ -78,6 +78,18 @@ struct minstrel_priv {
         unsigned int update_interval;
         unsigned int lookaround_rate;
         unsigned int lookaround_rate_mrr;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+        /*
+         * enable fixed rate processing per RC
+         *   - write static index to debugfs:ieee80211/phyX/rc/fixed_rate_idx
+         *   - write -1 to enable RC processing again
+         *   - setting will be applied on next update
+         */
+        u32 fixed_rate_idx;
+        struct dentry *dbg_fixed_rate;
+#endif
+
 };
 
 struct minstrel_debugfs_info {