diff options
| author | Eyal Shapira <[email protected]> | 2014-09-17 13:56:29 +0300 |
|---|---|---|
| committer | Emmanuel Grumbach <[email protected]> | 2014-10-29 12:49:11 +0200 |
| commit | dc574e526381ddcc7e5103ca091fd93c29129c6d (patch) | |
| tree | 12ea3f17503f0662d71fccdce18fe60a721c8429 | |
| parent | e7322f32881589cc47709b65713455aa4621e22e (diff) | |
iwlwifi: rs: option to easily disable Tx MIMO
The current TLC isn't optimized for low latency and some devices
have issues with MIMO. This kind of combo creates latency issues.
Allow to temporarily disable MIMO for tests in order to solve
the latency issues without the added complexity of MIMO.
Signed-off-by: Eyal Shapira <[email protected]>
Signed-off-by: Arik Nemtsov <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/constants.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h index d4dfbe4cb66d..dfec5b5e7e14 100644 --- a/drivers/net/wireless/iwlwifi/mvm/constants.h +++ b/drivers/net/wireless/iwlwifi/mvm/constants.h @@ -95,5 +95,6 @@ #define IWL_MVM_FW_MCAST_FILTER_PASS_ALL 0 #define IWL_MVM_QUOTA_THRESHOLD 8 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE 0 +#define IWL_MVM_RS_DISABLE_MIMO 0 #endif /* __MVM_CONSTANTS_H */ diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 18a539999580..0d836fe67e83 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -2684,6 +2684,9 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lq_sta->ldpc = true; } + if (IWL_MVM_RS_DISABLE_MIMO) + lq_sta->active_mimo2_rate = 0; + lq_sta->max_legacy_rate_idx = find_last_bit(&lq_sta->active_legacy_rate, BITS_PER_LONG); lq_sta->max_siso_rate_idx = find_last_bit(&lq_sta->active_siso_rate, |