linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Javier Cardona <javier@cozybit.com>
To: linux-wireless@vger.kernel.org
Cc: Javier Cardona <javier@cozybit.com>,
	andrey@cozybit.com, johannes@sipsolutions.net,
	linville@tuxdriver.com, devel@lists.open80211s.org
Subject: [PATCH] mac80211: Early detection of broken mesh paths when using minstrel.
Date: Fri,  7 Aug 2009 20:31:52 -0700	[thread overview]
Message-ID: <1249702314-32504-7-git-send-email-javier@cozybit.com> (raw)
In-Reply-To: <1249702314-32504-6-git-send-email-javier@cozybit.com>


Signed-off-by: Javier Cardona <javier@cozybit.com>
---
 net/mac80211/mesh_hwmp.c        |    1 -
 net/mac80211/rc80211_minstrel.c |    8 +++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index b4309b2..1cd1e72 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -272,7 +272,6 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 	}
 
 	last_hop_metric = airtime_link_metric_get(local, sta);
-	printk("XXX: last_hop_metric = %d\n", last_hop_metric);
 	/* Update and check originator routing info */
 	fresh_info = true;
 
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);
+			}
 		}
 	}
 
-- 
1.5.4.3


  reply	other threads:[~2009-08-08  3:43 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-08  3:31 Mesh fixes and improvements Javier Cardona
2009-08-08  3:31 ` [PATCH] mac80211: Improve dequeing from mpath frame queue Javier Cardona
2009-08-08  3:31   ` [PATCH] mac80211: Use correct sign for mesh active path refresh Javier Cardona
2009-08-08  3:31     ` [PATCH] mac80211: Simulate transmission losses on plinks to aid in testing mesh metrics Javier Cardona
2009-08-08  3:31       ` [PATCH] mac80211: Use 3-address format for mesh broadcast frames Javier Cardona
2009-08-08  3:31         ` [PATCH] mac80211: Update the station failed frames average when minstrel is used Javier Cardona
2009-08-08  3:31           ` Javier Cardona [this message]
2009-08-08  3:31             ` [PATCH] mac80211: Assign a default mesh beaconing interval Javier Cardona
2009-08-08  3:31               ` [PATCH] mac80211: Moved mpath and mpp growth to mesh workqueue Javier Cardona

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1249702314-32504-7-git-send-email-javier@cozybit.com \
    --to=javier@cozybit.com \
    --cc=andrey@cozybit.com \
    --cc=devel@lists.open80211s.org \
    --cc=johannes@sipsolutions.net \
    --cc=linux-wireless@vger.kernel.org \
    --cc=linville@tuxdriver.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).