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Commit 48e6de61 authored by Eyal Shapira's avatar Eyal Shapira Committed by Emmanuel Grumbach
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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: default avatarEyal Shapira <eyal@wizery.com>
Reviewed-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 183d281d

drivers/net/wireless/iwlwifi/iwl-nvm-parse.c

+3 −0
Original line number Diff line number Diff line
@@ -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)