All of 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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.