From 48e6de611772c1d259f349638d1371c32c28f15f Mon Sep 17 00:00:00 2001 From: Eyal Shapira Date: Sun, 3 Nov 2013 10:04:08 +0200 Subject: [PATCH] iwlwifi: set VHT beamformee STS cap correctly It was set to zero which reflects support of a single STS. Set according to the number of Rx antennas which correctly reflects the number of STSs the STA can receive in a VHT NDP. This improves beamforming and has been tested to improve Rx throughput. Signed-off-by: Eyal Shapira Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-nvm-parse.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index 94aef22df73a..e366f128a555 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -263,11 +263,14 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, struct iwl_nvm_data *data, struct ieee80211_sta_vht_cap *vht_cap) { + int bf_sts_cap = num_of_ant(data->valid_rx_ant) - 1; + vht_cap->vht_supported = true; vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 | IEEE80211_VHT_CAP_RXSTBC_1 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | + bf_sts_cap << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT | 7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; if (iwlwifi_mod_params.amsdu_size_8K) -- 2.39.5