Only Lowest Legacy Rate 6Mbps used by Adhoc Mode

[Yeoh Chun-Yeow]

Attached is the dump file of the command. Let me know whether this is
sufficient.

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Chun-Yeow


On Tue, Mar 4, 2014 at 5:56 PM, Michal Kazior <michal.kazior at tieto.com> wrote:
> On 4 March 2014 10:51, Yeoh Chun-Yeow <yeohchunyeow at gmail.com> wrote:
>>> Hmm.. if I assume ath10k_sta_state() isn't called for AUTH->ASSOC
>>> (which probably isn't unreasonable to consider since IBSS doesn't have
>>> an association sequence, does it?) then ath10k_station_assoc() isn't
>>> called and neither is ath10k_wmi_peer_assoc() which I suspect setups
>>> HW rate control.
>>
>> Nope, the mac80211 will move the STA state to AUTH and ASSOC when the
>> STA is added but as legacy STA. So ath10k_station_assoc is called as
>> shown below:
>>
>> [ 445.080000] ath10k: mac vdev 0 peer create 04:f0:21:0c:a5:44 (new
>> sta) num_peers 2
>> [  445.080000] ath10k: wmi peer create vdev_id 0 peer_addr 04:f0:21:0c:a5:44
>> [  445.080000] ath10k: mac sta 04:f0:21:0c:a5:44 associated
>> [  445.080000] ath10k: mac peer 04:f0:21:0c:a5:44 phymode 11a
>> --------> [first association with legacy]
>> [  445.080000] ath10k: wmi peer assoc vdev 0 addr 04:f0:21:0c:a5:44
>> [  445.160000] ath10k: mac sta rc update for 04:f0:21:0c:a5:44 changed
>> 00000004 bw 0 nss 1 smps 2
>> [ 445.160000] ath10k: mac sta rc update for 04:f0:21:0c:a5:44:
>> changing supported rates not implemented [upgrade the rate]
>> [ 445.170000] ath10k: wmi peer delete vdev_id 0 peer_addr
>> 04:f0:21:0c:a5:44 -----------> [delete peer]
>> [  445.170000] ath10k: wmi peer create vdev_id 0 peer_addr
>> 04:f0:21:0c:a5:44 -----------> [create peer]
>> [  445.170000] ath10k: mac ht peer 04:f0:21:0c:a5:44 mcs cnt 24 nss 1
>> [  445.170000] ath10k: mac peer 04:f0:21:0c:a5:44 phymode 11na-ht20
>> [  445.170000] ath10k: wmi peer assoc vdev 0 addr 04:f0:21:0c:a5:44
>> ------------> [associate peer again with HT]
>> [  445.170000] ath10k: wmi vdev 0 peer 0x04:f0:21:0c:a5:44 set param 1 value 1
>>
>> My further investigation shows that the rate control is working when
>> you added and associated the STA at first.
>>
>> Later on, mac80211 found out that the adhoc node can support HT or VHT
>> and try to call drv_sta_rc_update. But since the
>> IEEE80211_RC_SUPP_RATES_CHANGED is not implemented, I try to add the
>> code to disassoc -> delete -> create -> assoc the STA again. But the
>> rate control is no longer working (but you can fix the HT rate as
>> suggested by Janusz Dziedzic). So what went wrong?
>
> Perhaps FW doesn't support HT with IBSS at all?
>
> Can you get peer assoc command dump (after normal assoc and after rc
> update), please? I'm curious what actually gets sent to firmware.
>
>
> Michał
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