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| author | Eyal Shapira <eyal@wizery.com> | 2013-12-11 09:32:28 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2013-12-17 19:39:58 +0200 |
| commit | 4623a26575847b385c7834549be4baf9f013d835 (patch) | |
| tree | a9c61e8b639ca76ceff0b85b3d1b3baaff5b0dab /drivers | |
| parent | be2056fce8f7f680594ba8e28512b45c360e507e (diff) | |
| download | linux-4623a26575847b385c7834549be4baf9f013d835.tar.gz linux-4623a26575847b385c7834549be4baf9f013d835.tar.bz2 linux-4623a26575847b385c7834549be4baf9f013d835.zip | |
iwlwifi: mvm: rs: disable MCS9 Tx workaround
MCS9 introduces some corner cases in the current rs
algorithm which may lead to non optimal throughput and
instability in the throughput. Until all the corner
cases are resolved disable MCS9 for Tx as a workaround
which yields better throughput results as MCS8 is much
more stable.
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 62b29d7f80f0..1f06450007ba 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -2207,6 +2207,10 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta, if (i == IWL_RATE_9M_INDEX) continue; + /* Disable MCS9 as a workaround */ + if (i == IWL_RATE_MCS_9_INDEX) + continue; + /* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */ if (i == IWL_RATE_MCS_9_INDEX && sta->bandwidth == IEEE80211_STA_RX_BW_20) @@ -2225,6 +2229,10 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta, if (i == IWL_RATE_9M_INDEX) continue; + /* Disable MCS9 as a workaround */ + if (i == IWL_RATE_MCS_9_INDEX) + continue; + /* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */ if (i == IWL_RATE_MCS_9_INDEX && sta->bandwidth == IEEE80211_STA_RX_BW_20) |