VHT mode for IBSS?

Janusz Dziedzic janusz.dziedzic at tieto.com
Fri Jan 23 03:03:42 EST 2015


On 23 January 2015 at 06:40, Janusz Dziedzic <janusz.dziedzic at tieto.com> wrote:
> On 23 January 2015 at 02:57, Ben Greear <greearb at candelatech.com> wrote:
>> Does current upstream wpa_supplicant support VHT mode for IBSS?
>>
>> I've tried to patch in the appropriate kernel patches to enable this
>> for ath10k, but the beacons show up as HT instead of VHT, and
>> stations do not show up as have vht_capa in debugfs.
>>
> Try my 4 patches in kernel:
> [RFCv3 1/4] mac80211: ibss/mesh move bw checking
> [RFCv3 2/4] cfg80211: add VHT support for IBSS
> [RFCv3 3/4] mac80211: IBSS fix scan reques
> [RFCv3 4/4] mac80211: add VHT support for IBSS
>
> And hostap:
> [PATCH 1/2] ibss: fix control freq if IBSS already found
> [PATCH 2/2] ibss: add fixed freq ssid param
> [RFC 1/2] hostap: make hostapd_set_freq_params() common
> [RFC 2/2] ibss: add support for VHT80 configuration
>
> + set NL80211_FEATURE_IBSS_VHT flag in ath10k driver
> + wpa_s->drv_flags |= WPA_DRIVER_FLAGS_VHT_IBSS in wpa_supplicant
> (this will be set base on NL80211_FEATURE soon)
>
>> It does appear to be doing HT, though performance is still poor
>> (about 11Mbps UDP throughput from one IBSS device to another.
>>
> I have about ~250Mbps UDP between two ath10k 2x2.
>
TC RESULT - (udp) ath10k-1 >>>> ath10k-2 (server) -  speed: 419 Mbits/sec
TC RESULT - (tcp) ath10k-1 >>>> ath10k-2 (server) -  speed: 404 Mbits/sec


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