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Commit 5f7a6f9b authored by Eyal Shapira's avatar Eyal Shapira Committed by Emmanuel Grumbach
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iwlwifi: publish Tx STBC support in VHT 



If the device is MIMO and VHT capable it supports Tx STBC.
Unlike HT, any chip that supports VHT also support STBC so
no need for a config parameter.
Using num_of_ants multiple times warranted caching it.

Signed-off-by: default avatarEyal Shapira <eyal@wizery.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 48e6de61

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

+6 −2
Original line number Diff line number Diff line
@@ -263,7 +263,8 @@ 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;

	int num_ants = num_of_ant(data->valid_rx_ant);

	int bf_sts_cap = num_ants - 1;



	vht_cap->vht_supported = true;
@@ -273,6 +274,9 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, 
		       bf_sts_cap << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |

		       7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;



	if (num_ants > 1)

		vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;



	if (iwlwifi_mod_params.amsdu_size_8K)

		vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
@@ -286,7 +290,7 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, 
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |

			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);



	if (num_of_ant(data->valid_rx_ant) == 1 ||

	if (num_ants == 1 ||

	    cfg->rx_with_siso_diversity) {

		vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |

				IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;