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| author | Manoharan, Rajkumar <rmanohar@qca.qualcomm.com> | 2017-02-15 12:46:50 -0800 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2017-03-06 09:21:46 +0100 |
| commit | fe56c9c17b09769691e8b91747b32aa2555bef35 (patch) | |
| tree | 835f117b1b17c3ab4b3c1cfb5d13ed55aa0ce549 /net/mac80211 | |
| parent | 75b99bc300463e65f87c90425704c2688489f963 (diff) | |
| download | linux-fe56c9c17b09769691e8b91747b32aa2555bef35.tar.gz linux-fe56c9c17b09769691e8b91747b32aa2555bef35.tar.bz2 linux-fe56c9c17b09769691e8b91747b32aa2555bef35.zip | |
mac80211: fix mesh fail_avg check
Mesh failure average never be more than 100. Only in case of
fixed path, average will be more than threshold limit (95%).
With recent EWMA changes it may go upto 99 as it is scaled to
100. It make sense to return maximum metric when average is
greater than threshold limit.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/mesh_hwmp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index d07ee3ca07ee..4005edd71fe8 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -16,6 +16,7 @@ #define TEST_FRAME_LEN 8192 #define MAX_METRIC 0xffffffff #define ARITH_SHIFT 8 +#define LINK_FAIL_THRESH 95 #define MAX_PREQ_QUEUE_LEN 64 @@ -311,7 +312,8 @@ void ieee80211s_update_metric(struct ieee80211_local *local, * feed failure as 100 and success as 0 */ ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, failed * 100); - if (ewma_mesh_fail_avg_read(&sta->mesh->fail_avg) > 95) + if (ewma_mesh_fail_avg_read(&sta->mesh->fail_avg) > + LINK_FAIL_THRESH) mesh_plink_broken(sta); } @@ -339,7 +341,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, if (rate) { err = 0; } else { - if (fail_avg >= 100) + if (fail_avg > LINK_FAIL_THRESH) return MAX_METRIC; sta_set_rate_info_tx(sta, &sta->tx_stats.last_rate, &rinfo); |