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| author | Javier Cardona <javier@cozybit.com> | 2009-08-10 12:15:50 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-08-14 09:14:01 -0400 |
| commit | 5815814bfad5b3f88ff58ab90aaf09dd69ab8da2 (patch) | |
| tree | 8779b7f735fc208ca9f9375223e51e4c06bdb902 /net/mac80211/rc80211_minstrel.c | |
| parent | d403a1c66ea1fb47ae61921eac278d4154f7ca8a (diff) | |
| download | kernel_samsung_aries-5815814bfad5b3f88ff58ab90aaf09dd69ab8da2.zip kernel_samsung_aries-5815814bfad5b3f88ff58ab90aaf09dd69ab8da2.tar.gz kernel_samsung_aries-5815814bfad5b3f88ff58ab90aaf09dd69ab8da2.tar.bz2 | |
mac80211: Early detection of broken mesh paths when using minstrel.
This change triggers a path discovery as soon as the link quality degrades
below a certain threshold. This results in a faster path recovery time than
by simply relying on the periodic path refresh mechanism to detect broken
links.
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel.c')
| -rw-r--r-- | net/mac80211/rc80211_minstrel.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 3ea9740..0071649 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -51,6 +51,7 @@ #include <linux/random.h> #include <linux/ieee80211.h> #include <net/mac80211.h> +#include "mesh.h" #include "rate.h" #include "rc80211_minstrel.h" @@ -178,9 +179,14 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0)) { mi->r[ndx].success += success; - if (si) + if (si) { si->fail_avg = (18050 - mi->r[ndx].probability) / 180; + WARN_ON(si->fail_avg > 100); + if (si->fail_avg == 100 && + ieee80211_vif_is_mesh(&si->sdata->vif)) + mesh_plink_broken(si); + } } } |