ath10k bug in station mode with regard to TX-BEAMFORMER?

Adrian Chadd adrian at freebsd.org
Thu Mar 2 15:30:50 PST 2017


On 2 March 2017 at 14:53, Sebastian Gottschall <s.gottschall at dd-wrt.com> wrote:

>> Did you patch supplicant?  If so, can you point me to the change(s) you
>> made?
>
> nope. i just used its features. there is a config entry named "vht_capa" and
> "vht_capa_mask" which allows to mask out / in vht capabilities

RIght, but you just disabled the capabilities entirely, right? That
didn't fix negotiation?



-adrian

>>
>> Thanks,
>> Ben
>>
>>>>
>>>> diff --git a/drivers/net/wireless/ath/ath10k/mac.c
>>>> b/drivers/net/wireless/ath/ath10k/mac.c
>>>> index 219daaee..5aefc8a 100644
>>>> --- a/drivers/net/wireless/ath/ath10k/mac.c
>>>> +++ b/drivers/net/wireless/ath/ath10k/mac.c
>>>> @@ -5372,6 +5372,7 @@ static int ath10k_mac_set_txbf_conf(struct
>>>> ath10k_vif *arvif)
>>>>  {
>>>>         u32 value = 0;
>>>>         struct ath10k *ar = arvif->ar;
>>>> +       struct ieee80211_vif *vif = arvif->vif;
>>>>         int nsts;
>>>>         int sound_dim;
>>>>
>>>> @@ -5391,17 +5392,21 @@ static int ath10k_mac_set_txbf_conf(struct
>>>> ath10k_vif *arvif)
>>>>         if (!value)
>>>>                 return 0;
>>>>
>>>> -       if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
>>>> +       if ((ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
>>>> &&
>>>> +           (vif->type != NL80211_IFTYPE_STATION))
>>>>                 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
>>>>
>>>> -       if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
>>>> +       if ((ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
>>>> &&
>>>> +           (vif->type != NL80211_IFTYPE_STATION))
>>>>                 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
>>>>                           WMI_VDEV_PARAM_TXBF_SU_TX_BFER);
>>>>
>>>> -       if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
>>>> +       if ((ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
>>>> &&
>>>> +           (vif->type == NL80211_IFTYPE_STATION))
>>>>                 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
>>>>
>>>> -       if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
>>>> +       if ((ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
>>>> &&
>>>> +               (vif->type == NL80211_IFTYPE_STATION))
>>>>                 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
>>>>                           WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);
>>>>
>>>>
>>>> Thanks,
>>>> Ben
>>>>
>>>
>>>
>>
>>
>
>
> --
> Mit freundlichen Grüssen / Regards
>
> Sebastian Gottschall / CTO
>
> NewMedia-NET GmbH - DD-WRT
> Firmensitz:  Berliner Ring 101, 64625 Bensheim
> Registergericht: Amtsgericht Darmstadt, HRB 25473
> Geschäftsführer: Peter Steinhäuser, Christian Scheele
> http://www.dd-wrt.com
> email: s.gottschall at dd-wrt.com
> Tel.: +496251-582650 / Fax: +496251-5826565
>
>
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