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authorZefir Kurtisi <zefir.kurtisi@neratec.com>2011-05-20 20:29:17 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-06-01 15:12:29 -0400
commit24f7580e852b5472b51eea322bb78454df0054b8 (patch)
tree46848e37d9a034e60ab6bb0c5dd08ba781e99951 /net/mac80211
parent71063f0e8939b5b6ea5121faed47987e094ef018 (diff)
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>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rc80211_minstrel.c9
-rw-r--r--net/mac80211/rc80211_minstrel.h12
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c7
3 files changed, 28 insertions, 0 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 8adac67395f7..58a89554b788 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -532,12 +532,21 @@ minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
mp->hw = hw;
mp->update_interval = 100;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ mp->fixed_rate_idx = (u32) -1;
+ mp->dbg_fixed_rate = debugfs_create_u32("fixed_rate_idx",
+ S_IRUGO | S_IWUGO, debugfsdir, &mp->fixed_rate_idx);
+#endif
+
return mp;
}
static void
minstrel_free(void *priv)
{
+#ifdef CONFIG_MAC80211_DEBUGFS
+ debugfs_remove(((struct minstrel_priv *)priv)->dbg_fixed_rate);
+#endif
kfree(priv);
}
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 {
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 333b5118be6d..66a1eeb279c6 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -609,6 +609,13 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
info->flags |= mi->tx_flags;
sample_idx = minstrel_get_sample_rate(mp, mi);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* use fixed index if set */
+ if (mp->fixed_rate_idx != -1)
+ sample_idx = mp->fixed_rate_idx;
+#endif
+
if (sample_idx >= 0) {
sample = true;
minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,

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