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WiFi: 11n hostap mode added to athn(4) driver, testers wanted
Contributed by pitrh on Mon Jan 9 13:33:21 2017 (GMT)
from the Puffy off the wire dept.

OpenBSD as WiFi access points look set to be making a comeback in the near future.

With this diff https://marc.info/?l=openbsd-tech&m=148396652007923&w=2, Stefan Sperling added 802.11n hostap mode, with full support initially for the Atheros chips supported by the athn(4) driver.

This diff adds 11n support to the athn(4) driver.
Requires -current net80211 code from today.

Tested in hostap mode and client mode with:

athn0 at pci1 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 2 int 16
athn0: AR9280 rev 2 (2T2R), ROM rev 22, adddress xx:xx:xx:xx:xx:xx

And in client mode with:

athn0 at uhub1 port 2 configuration 1 interface 0 "ATHEROS USB2.0 WLAN" rev 2.00/1.08 addr 2
athn0: AR9271 rev 1 (1T1R), ROM rev 13, address xx:xx:xx:xx:xx:xx

Hostap performance is not perfect yet but should be no worse than 11a/b/g modes in the same environment.

For Linux clients a fix for WME params is needed which I also posted to tech@.

This diff does not modify the known-broken and disabled ar9003 code, apart from making sure it still builds.

I'm looking for both tests and OKs.

You heard the man: Testers wanted. You know you want your APs to run OpenBSD, sooner rather than later.

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  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod 9/127)
by Stefan Sperling (stsp) (stsp@openbsd.org) on Tue Jan 10 13:43:30 2017 (GMT)
http://stsp.name
  Please don't test the first diff I posted.
There is an updated diff which marc.info hasn't archived yet.
Here's an alternative link: https://www.mail-archive.com/tech@openbsd.org/msg36647.html

Also make sure to get all recent net80211 code commits from -current.
  [ Show thread ] [ Reply to this comment ] [ Mod Up ] [ Mod Down ]

  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod 11/115)
by Stefan Sperling (stsp) (stsp@openbsd.org) on Thu Jan 19 23:19:12 2017 (GMT)
http://stsp.name
  Since this post is still being quoted by some other sites as news,
please note that by now, all the diff are part of -current snapshots.
So do not mess around with the diffs anymore at this point.
Just install the latest snapshot.

Also, the /etc/hostname.athn0 config file currently must specify
'mode 11n' and set a channel, else there might be known issues.
A config based on this example should work:

media autoselect mode 11n mediaopt hostap chan 1
nwid foo wpakey xxxxxxxx
inet 192.168.1.1 255.255.255.0
  [ Show thread ] [ Reply to this comment ] [ Mod Up ] [ Mod Down ]

  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod -1/1)
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  [ Show thread ] [ Reply to this comment ] [ Mod Up ] [ Mod Down ]

  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod 0/0)
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  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod 1/1)
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  Re: WiFi: 11n hostap mode added to athn(4) driver, testers wanted (mod 0/0)
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