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Re: AP mode with Broadcom 4330

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On Mon, Aug 14, 2017 at 11:25:03PM -0700, rosenp@xxxxxxxxx wrote:
> If using rtlwifi, you could try using rtl8xxxu and see if you get
> similar results. ¯\_(ツ)_/¯

I'm using rtl8xxxu.  I don't think rtlwifi supports the 8192eu - it
certainly does not list the device id:
Bus 001 Device 002: ID 0bda:818b Realtek Semiconductor Corp.

As an extra data point, trying to associate to the 4330 with an Intel
client gives:

[8821752.691490] wlan0: authenticate with 6c:ad:f8:1d:4c:d9
[8821752.693448] wlan0: send auth to 6c:ad:f8:1d:4c:d9 (try 1/3)
[8821752.696230] wlan0: authenticated
[8821752.697493] wlan0: associate with 6c:ad:f8:1d:4c:d9 (try 1/3)
[8821752.700816] wlan0: RX AssocResp from 6c:ad:f8:1d:4c:d9 (capab=0x411 status=0 aid=1)
[8821752.704407] wlan0: associated
[8821755.814844] wlan0: deauthenticated from 6c:ad:f8:1d:4c:d9 (Reason: 2=PREV_AUTH_NOT_VALID)

which gets slightly further but ultimately still fails.

> On Tue, 2017-08-15 at 00:30 +0100, Russell King - ARM Linux wrote:
> > On Fri, Jul 28, 2017 at 09:50:21PM +0200, Arend van Spriel wrote:
> > > On 28-07-17 19:49, Russell King - ARM Linux wrote:
> > > > Replacing that "(!mbss)" with "mbss" results in AP mode working
> > > > on the
> > > > 4330.  However, I suspect:
> > > > 
> > > > 		if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
> > > > 			brcmf_fil_iovar_int_set(ifp, "mbss", mbss);
> > > > 
> > > > actually makes much more sense.
> > > > 
> > > > Given that this is direct firmware interaction, I can't say which
> > > > is
> > > > correct - all I can say is that mainline kernels are currently
> > > > broken.
> > > 
> > > Indeed. I have to come up with a proper fix for both scenarios.
> > > Thanks
> > > for the report.
> > 
> > I'm now on 4.13-rc4, and running with my patch.  I've configured AP
> > mode:
> > 
> > Interface wlan0
> > 	ifindex 3
> > 	wdev 0x1
> > 	addr 6c:ad:f8:1d:4c:d9
> > 	ssid Time
> > 	type AP
> > 	wiphy 0
> > 	channel 5 (2432 MHz), width: 20 MHz, center1: 2432 MHz
> > 
> > using NetworkManager with a WPA2 key.  However, a Realtek RTL8192EU
> > client is trying to connect to it, but is unable:
> > 
> > [ 1750.497436] wlan0: authenticate with 6c:ad:f8:1d:4c:d9
> > [ 1750.530929] wlan0: send auth to 6c:ad:f8:1d:4c:d9 (try 1/3)
> > [ 1750.738795] wlan0: send auth to 6c:ad:f8:1d:4c:d9 (try 2/3)
> > [ 1750.946780] wlan0: send auth to 6c:ad:f8:1d:4c:d9 (try 3/3)
> > [ 1751.154764] wlan0: authentication with 6c:ad:f8:1d:4c:d9 timed out
> > 
> > The antennas are definitely within range (finger to thumb distance)
> > and the Realtek can definitely see the BCM4330 in AP mode.  I don't
> > see the interrupts for the SDIO interface increment while the client
> > tries to connect.
> > 
> > The WPA2 password is definitely the same on both ends.
> > 
> > Any ideas how to debug this?
> > 
> > Thanks.
> > 

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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