Re: Problem connecting to wifi on libertas_cpio (sd8686)

From: Christopher Williamson <home@chrisaw.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	Dan Williams <dcbw@redhat.com>
Subject: Re: Problem connecting to wifi on libertas_cpio (sd8686)
Date: Tue, 19 Jul 2016 13:03:16 -0400	[thread overview]
Message-ID: <CANXHH3kKV4m6rw9O=6x_QT2vwr7Tnx9EddpFq1VXfhnVdg9pFg@mail.gmail.com> (raw)
In-Reply-To: <1468946312.5661.2.camel@redhat.com>

Absolutely!

With the debug logging enabled I got the following:

Connecting the device initially with debug enabled:

[  205.302685] libertas_sdio: Libertas SDIO driver
[  205.302698] libertas_sdio: Copyright Pierre Ossman
[  205.503465] cfg80211: World regulatory domain updated:
[  205.503478] cfg80211:  DFS Master region: unset
[  205.503483] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[  205.503492] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[  205.503499] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[  205.503505] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz),
(N/A, 2000 mBm), (N/A)
[  205.503513] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[  205.503522] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  205.503529] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz),
(N/A, 2000 mBm), (0 s)
[  205.503535] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz),
(N/A, 2000 mBm), (N/A)
[  205.503542] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000
KHz), (N/A, 0 mBm), (N/A)
[  212.249171] gma500 0000:00:02.0: Backlight lvds set brightness 7a127a12
[  212.324898] mmc1: new SDIO card at address 0001
[  212.921672] libertas_sdio mmc1:0001:1 (unnamed net_device)
(uninitialized): 00:02:78:69:49:94, fw 9.70.20p0, cap 0x00000303
[  212.925774] libertas_sdio mmc1:0001:1 (unnamed net_device)
(uninitialized): PREP_CMD: command 0x00a3 failed: 2
[  212.936190] libertas_sdio mmc1:0001:1 wlan0: Marvell WLAN 802.11 adapter
[  213.053612] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

Strangely when I attempt to connect to the WiFi network I’m using the
only error I get is:

[  338.076632] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

I was expecting more output and am guessing I’ve missed something here.

Christopher Williamson

On 19 July 2016 at 17:38:35, Dan Williams
(dcbw@redhat.com(mailto:dcbw@redhat.com)) wrote:

> On Tue, 2016-07-19 at 12:06 -0400, Christopher Williamson wrote:
> > Hi everyone!
> >
> > I’ve just got myself a Viliv N5 and am trying to get the integrated
> > Wifi chipset working on it.
> >
> > I am able to see networks around me but any attempts to connect them
> > appear to time out and fail.
> >
> > I have filed a linux kernel bug related to this issue:
> > https://bugzilla.kernel.org/show_bug.cgi?id=135421goo
> >
> > I figured here may be a good place to ask about it and hopefully to
> > get to the bottom of why it happens and how I can help to fix it.
> >
> > Happy to provide any information which may be helpful! :)
>
> Can you reload the driver stack:
>
> rmmod libertas_sdio
> rmmod libertas
> modprobe libertas libertas_debug=0x251e7ff
> modprobe libertas_sdio
>
> and then reproduce the issue? The debug info should dump to 'dmesg'
> and may tell us what's going on.
>
> Dan