ATH10K Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: Tomasz Tajmajer <tt@elnovel.com>
To: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Cc: Michal Kazior <michal.kazior@tieto.com>, ath10k@lists.infradead.org
Subject: Re: [BUG] QWLE900V5-18 - cannot achievie 3 spatial streams link
Date: Thu, 12 Dec 2013 12:42:05 +0100	[thread overview]
Message-ID: <52A9A10D.9000901@elnovel.com> (raw)
In-Reply-To: <CALhHN=qT=5H9qc8oqB_sZARzJvCoQ7wTwY09nB9HsyJTXx0ZEg@mail.gmail.com>


On 11.12.2013 20:51, Janusz Dziedzic wrote:
>> Seems from driver we configure everything correctly. Rate Control is
>> in FW - so FW will decide what NSS/MCS to use. Here we see our devices
>> works fine with 3x3.
>>
>> BTW.
>> You can try to use fixed_rate setting. You will have to apply some
>> patches from mac80211-next/group:
>>
>> Kernel:
>> 1) nl80211: don't clear bitrate_mask twice
>> 2) nl80211: back to default bitrate_mask correctly
>> 3) nl80211/cfg80211: bitrate_mask, rename mcs to ht_mcs
>> 4) nl80211: add VHT support for set_bitrate_mask
>> 5) ath10k: add set_bitrate_mask callback - this I will send in few minutes
>>
>> iw:
>> 1) iw: add VHT MCS/NSS set support to set bitrates
>>
>> After that just run ap and: iw wlanX set bitrates legacy-5 ht-mcs-5
>> vht-mcs-5 3:0
>>
>> You should send frames from AP with NSS=3, MCS=0
>>
> BTW Do you have same problem with HT, or only with VHT?
>
> BR
> Janusz
>

For HT 3x3 MIMO is working fine. The issue occurs only for VHT.

Thank you for your suggestions, I'll apply the patches and try to force 
3 spatial streams manually. Hope it will work.

BTW: Which firmware and driver versions you were using in your tests ?

BR
TomaszT




_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

  reply	other threads:[~2013-12-12 11:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-06 16:33 [BUG] QWLE900V5-18 - cannot achievie 3 spatial streams link Tomasz Tajmajer
2013-12-06 17:25 ` Adrian Chadd
2013-12-06 17:32 ` Janusz Dziedzic
2013-12-09  9:04   ` Kalle Valo
2013-12-09 10:03     ` Tomasz Tajmajer
2013-12-09 10:13       ` Michal Kazior
2013-12-09 11:29         ` Tomasz Tajmajer
2013-12-09 12:10           ` Tomasz Tajmajer
2013-12-11 12:19             ` Tomasz Tajmajer
2013-12-11 19:43               ` Janusz Dziedzic
2013-12-11 19:51                 ` Janusz Dziedzic
2013-12-12 11:42                   ` Tomasz Tajmajer [this message]
2013-12-12 15:01                     ` Tomasz Tajmajer
2013-12-13  6:17                       ` Michal Kazior

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=52A9A10D.9000901@elnovel.com \
    --to=tt@elnovel.com \
    --cc=ath10k@lists.infradead.org \
    --cc=janusz.dziedzic@tieto.com \
    --cc=michal.kazior@tieto.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox