diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 12c5e5d6e91..13039a02447 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -49,6 +49,8 @@ #define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */ #define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */ +/* max allowed rate miss before sync LQ cmd */ +#define IWL_MISSED_RATE_MAX 15 /* max time to accum history 2 seconds */ #define IWL_RATE_SCALE_FLUSH_INTVL (2*HZ) @@ -149,6 +151,7 @@ struct iwl_lq_sta { u16 active_mimo3_rate; u16 active_rate_basic; s8 max_rate_idx; /* Max rate set by user */ + u8 missed_rate_counter; struct iwl_link_quality_cmd lq; struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ @@ -841,10 +844,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, /* the last LQ command could failed so the LQ in ucode not * the same in driver sync up */ - iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC); + lq_sta->missed_rate_counter++; + if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) { + lq_sta->missed_rate_counter = 0; + iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC); + } goto out; } + lq_sta->missed_rate_counter = 0; /* Update frame history window with "failure" for each Tx retry. */ while (retries) { /* Look up the rate and other info used for each tx attempt. @@ -2212,6 +2220,8 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband, struct ieee80211_conf *conf = &priv->hw->conf; struct iwl_lq_sta *lq_sta = priv_sta; u16 mask_bit = 0; + int count; + int start_rate = 0; lq_sta->flush_timer = 0; lq_sta->supp_rates = sta->supp_rates[sband->band]; @@ -2247,6 +2257,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband, lq_sta->is_dup = 0; lq_sta->max_rate_idx = -1; + lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX; lq_sta->is_green = rs_use_green(priv, conf); lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000); lq_sta->active_rate_basic = priv->active_rate_basic; @@ -2285,16 +2296,20 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband, lq_sta->drv = priv; /* Find highest tx rate supported by hardware and destination station */ - mask_bit = sta->supp_rates[sband->band] & lq_sta->active_legacy_rate; - lq_sta->last_txrate_idx = 3; - for (i = 0; i < sband->n_bitrates; i++) + mask_bit = sta->supp_rates[sband->band]; + count = sband->n_bitrates; + if (sband->band == IEEE80211_BAND_5GHZ) { + count += IWL_FIRST_OFDM_RATE; + start_rate = IWL_FIRST_OFDM_RATE; + mask_bit <<= IWL_FIRST_OFDM_RATE; + } + + mask_bit = mask_bit & lq_sta->active_legacy_rate; + lq_sta->last_txrate_idx = 4; + for (i = start_rate; i < count; i++) if (mask_bit & BIT(i)) lq_sta->last_txrate_idx = i; - /* For MODE_IEEE80211A, skip over cck rates in global rate table */ - if (sband->band == IEEE80211_BAND_5GHZ) - lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; - rs_initialize_lq(priv, conf, sta, lq_sta); } |