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Commit 24f7580e authored by Zefir Kurtisi's avatar Zefir Kurtisi Committed by John W. Linville
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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: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 71063f0e

net/mac80211/rc80211_minstrel.c

+9 −0
Original line number Diff line number Diff line
@@ -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);

}

net/mac80211/rc80211_minstrel.h

+12 −0
Original line number Diff line number Diff line
@@ -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 {

net/mac80211/rc80211_minstrel_ht.c

+7 −0
Original line number Diff line number Diff line
@@ -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,