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Commit 0c6d6f26 authored by Bartosz Markowski's avatar Bartosz Markowski Committed by Kalle Valo
Browse files

ath10k: fix beamformer VHT sounding dimensions capability 



Similarly to the VHT STS, this is supposed to be propagated by firmware.
In case it's not, use the default value, but as last resort.

Signed-off-by: default avatarBartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 707a0c81

drivers/net/wireless/ath/ath10k/mac.c

+19 −2
Original line number Diff line number Diff line
@@ -4080,11 +4080,27 @@ static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar) 
	return nsts;

}



static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)

{

	int sound_dim = ar->vht_cap_info;

	sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;

	sound_dim >>=IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;



	/* If the sounding dimension is not advertised by the firmware,

	 * let's use a default value of 1

	 */

	if (sound_dim == 0)

		return 1;



	return sound_dim;

}



static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)

{

	u32 value = 0;

	struct ath10k *ar = arvif->ar;

	int nsts;

	int sound_dim;



	if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)

		return 0;
@@ -4094,9 +4110,10 @@ static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif) 
				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))

		value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);



	sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);

	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |

				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))

		value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);

		value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);



	if (!value)

		return 0;
@@ -6831,7 +6848,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar) 


	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |

				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {

		val = ar->num_rf_chains - 1;

		val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);

		val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;

		val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;