From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mohammed Shafi Date: Fri, 11 Feb 2011 15:54:32 +0530 Subject: [ath9k-devel] Progress on Ath9k HT support on Adhoc mode In-Reply-To: References: Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Thu, Feb 10, 2011 at 10:15 PM, Baldomero Coll wrote: > > > 2011/2/10 Mohammed Shafi >> >> On Thu, Feb 10, 2011 at 5:34 PM, Baldomero Coll >> wrote: >> > Hi all, >> > >> > I'm also testing the patch Alex and Benoit have released for the >> > community. >> > After configuring my IBSS network, the station dump command shows this >> > [1]. >> > As you can see, although the IBSS network has been created in HT mode, >> > one >> > link doesn't seem to support MCS rates. >> > I would like to know if it is possible to force the MCS scheme. I don't >> > know >> > why the "NL80211_TXRATE_MCS" parameter is not defined in the bitrates.c >> > (iw), or what I have to do to enable it. >> >> I don't think we can force a particular MCS rate in the station side, >> we have rate control algorithms to determine the rate. >> > Do you know where i can find the rate control mechanism that is been used > when i create the HT IBSS network? > I would like to know if such mechanism is able to switch to non-HT rates if > the channel quality is poor. ministrel -HT ? I think it will(just like ath9k rate control). > >> > >> > I also wonder what rate control mechanism is been used in HT mode >> > (minstrel >> > HT?), and whether such mechanism switches to non HT rates when the >> > channel >> > quality is bad. Yes it should. >> > >> > I have been using wireshark to capture data transmissions between 2 PCs >> > configured in IBSS HT mode. What I see in the radiotap header is that no >> > HT >> > information is available (protocol, data rate). Do you know how the HT >> > information can be added to the ratiotap header? >> >> If you are using wireshark, you need to take the latest bleeding edge >> that has MCS rate support and also you need latest wireless-testing >> that contains MCS rate update to radiotap. > > I don't completely understand what do you mean. Can you tell me which > version of wireshark i should use? and where i could find the latest > radiotap version? latest development branch (not even 1.5.0 version). http://www.wireshark.org/develop.html > >> >> > >> > Thanks for your help >> > Baldo >> > >> > >> > [1] >> > >> > ---------------------------------------------------------------------------------------------------------------------------------------- >> > sudo iw dev wlan0 station dump >> > Station xx:xx:xx:xx:xx:xx (on wlan0) >> > ??? inactive time:??? 8392 ms >> > ??? rx bytes:??? 2476336 >> > ??? rx packets:??? 2149 >> > ??? tx bytes:??? 433552 >> > ??? tx packets:??? 1228 >> > ??? tx retries:??? 564 >> > ??? tx failed:??? 0 >> > ??? signal:? ??? -27 dBm >> > ??? signal avg:??? -28 dBm >> > ??? tx bitrate:??? 270.0 MBit/s MCS 14 40Mhz short GI >> > Station xx:xx:xx:xx:xx:xx (on wlan0) >> > ??? inactive time:??? 200 ms >> > ??? rx bytes:??? 27577 >> > ??? rx packets:??? 434 >> > ??? tx bytes:??? 803 >> > ??? tx packets:??? 8 >> > ??? tx retries:??? 2 >> > ??? tx failed:??? 0 >> > ??? signal:? ??? -26 dBm >> > ??? signal avg:??? -26 dBm >> > ??? tx bitrate:??? 6.5 MBit/s MCS 0 >> > Station xx:xx:xx:xx:xx:xx (on wlan0) >> > ??? inactive time:??? 96 ms >> > ??? rx bytes:??? 692528 >> > ??? rx packets:??? 18938 >> > ??? tx bytes:??? 2979324 >> > ??? tx packets:??? 2001 >> > ??? tx retries:??? 3340 >> > ??? tx failed:??? 0 >> > ??? signal:? ??? -33 dBm >> > ??? signal avg:??? -33 dBm >> > ??? tx bitrate:??? 54.0 MBit/s >> > >> > ---------------------------------------------------------------------------------------------------------------------------------------- >> > >> > _______________________________________________ >> > ath9k-devel mailing list >> > ath9k-devel at lists.ath9k.org >> > https://lists.ath9k.org/mailman/listinfo/ath9k-devel >> > >> > > >