From: Stefan Wahren <stefan.wahren@i2se.com>
To: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Cc: Felix Fietkau <nbd@nbd.name>,
Stanislaw Gruszka <sgruszka@redhat.com>,
Doug Anderson <dianders@chromium.org>,
Minas Harutyunyan <hminas@synopsys.com>,
linux-wireless <linux-wireless@vger.kernel.org>,
linux-usb@vger.kernel.org
Subject: Re: [BUG] mt76x0u: Probing issues on Raspberry Pi 3 B+
Date: Sat, 9 Feb 2019 23:47:36 +0100 (CET) [thread overview]
Message-ID: <1967648755.294991.1549752456082@email.ionos.de> (raw)
In-Reply-To: <CAJ0CqmXhPRh8L3QkKDEJZffPOKV0TgMg27sdP7UX9PRvEy-eQg@mail.gmail.com>
Hi Lorenzo,
> Lorenzo Bianconi <lorenzo.bianconi@redhat.com> hat am 9. Februar 2019 um 21:33 geschrieben:
>
>
> >
> > Hi Lorenzo,
> >
> > > Lorenzo Bianconi <lorenzo.bianconi@redhat.com> hat am 9. Februar 2019 um 19:46 geschrieben:
> > >
> > >
> > > >
> > > > Hi,
> > > >
> > > > as already reported here [1], that there are probing issues of mt76 using TP-Link Archer T2UH (wifi USB dongle) on Raspberry Pi 3 B+.
> > > >
> > > > I retested it with recent linux-next 20190208 (aarch64 defconfig + enabling mt76 driver) and got the following output after plugin the wifi dongle:
> > > >
> > > > [ 29.778524] usb 1-1.3: new high-speed USB device number 6 using dwc2
> > > > [ 31.794581] usb 1-1.3: reset high-speed USB device number 6 using dwc2
> > > > [ 31.919916] mt76x0u 1-1.3:1.0: ASIC revision: 76100002 MAC revision: 76502000
> > > > [ 32.304412] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> > > > [ 32.325724] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> > > > [ 32.346866] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> > > > [ 33.410559] mt76x0u 1-1.3:1.0: firmware upload timed out
> > > > [ 33.435458] mt76x0u: probe of 1-1.3:1.0 failed with error -110
> > > > [ 33.454829] usbcore: registered new interface driver mt76x0u
> > > >
> > > > I took the firmware files from here [2].
> > > >
> > > > Btw there is another issue, if i disconnect the wifi dongle during probe i'm getting a endless flood of the following output:
> > > >
> > > > mt76x0u 1.1.3:1.0: rx urb failed: -71
> > > >
> > > > Any chance to narrow down these issues?
> > >
> > > Hi Stefan,
> > >
> > > could you please test the following series:
> > > https://patchwork.kernel.org/cover/10764453/
> >
> > yeah this fixed the probing timeout and the driver will probe successful. AFAIK the dwc2 host mode doesn't support scatter-gather yet.
> >
>
> Hi Stefan,
>
> is the dongle working properly now? Are you able to connect to your AP?
i successful tested STA mode with 2.4 GHz and 5 GHz.
>
> > > Applying this series I am able to connect to my home AP using an Asus
> > > USB-AC51 (mt76x0u) connected to a Raspberry Pi 3 B+.
> > > I am running rpi-5.0.y branch of https://github.com/raspberrypi/linux.git
> >
> > The foundation kernel uses a different USB driver called dwc-otg which make use of FIQ.
> >
> > Okay, now we only need to find a solution for the "rx urb failed" flood ;-)
>
> Does it happen just if you remove the dongle during probe?
I also see those messages while disconnecting after a successful probe but in this case the messages stopps after a few seconds. In case of a disconnect while probing the flood never ends. It looks like the rx tasklet is triggered forever.
Stefan
>
> Regards,
> Lorenzo
>
next prev parent reply other threads:[~2019-02-09 22:47 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-09 12:08 [BUG] mt76x0u: Probing issues on Raspberry Pi 3 B+ Stefan Wahren
2019-02-09 18:46 ` Lorenzo Bianconi
2019-02-09 20:29 ` Stefan Wahren
2019-02-09 20:33 ` Lorenzo Bianconi
2019-02-09 22:47 ` Stefan Wahren [this message]
2019-02-10 9:41 ` Stanislaw Gruszka
2019-02-10 10:22 ` Lorenzo Bianconi
2019-02-11 7:44 ` Stanislaw Gruszka
2019-02-11 10:04 ` Lorenzo Bianconi
2019-02-11 10:33 ` Stefan Wahren
2019-02-11 11:06 ` Lorenzo Bianconi
2019-02-11 14:04 ` Stefan Wahren
2019-02-11 15:10 ` Lorenzo Bianconi
2019-02-11 15:27 ` Stefan Wahren
2019-02-11 15:57 ` Lorenzo Bianconi
2019-02-13 7:05 ` Stefan Wahren
2019-02-11 17:22 ` Stanislaw Gruszka
2019-02-10 9:29 ` Stanislaw Gruszka
2019-02-10 16:38 ` Stefan Wahren
2019-02-10 16:52 ` Lorenzo Bianconi
2019-02-10 17:39 ` Lorenzo Bianconi
2019-02-11 7:50 ` Stanislaw Gruszka
2019-02-11 8:08 ` Stefan Wahren
2019-02-11 9:52 ` Lorenzo Bianconi
[not found] <20190211173315.GE6292@redhat.com>
[not found] ` <Pine.LNX.4.44L0.1902111246410.1543-100000@iolanthe.rowland.org>
2019-02-12 0:06 ` Lorenzo Bianconi
2019-02-12 9:30 ` Stanislaw Gruszka
2019-02-12 11:58 ` Lorenzo Bianconi
2019-02-12 13:15 ` Stanislaw Gruszka
2019-02-14 6:49 ` Stefan Wahren
2019-02-14 9:25 ` Stanislaw Gruszka
2019-02-14 9:48 ` Stefan Wahren
2019-02-14 9:54 ` Stanislaw Gruszka
2019-02-15 7:12 ` Stanislaw Gruszka
2019-02-16 11:05 ` Stefan Wahren
2019-02-16 14:07 ` Stanislaw Gruszka
2019-02-16 19:17 ` Stefan Wahren
2019-02-18 13:52 ` Stanislaw Gruszka
2019-02-18 14:25 ` Lorenzo Bianconi
2019-02-18 14:47 ` Stanislaw Gruszka
2019-02-18 14:43 ` Felix Fietkau
2019-02-18 15:03 ` Stanislaw Gruszka
2019-02-18 18:52 ` Felix Fietkau
2019-02-19 10:42 ` Stanislaw Gruszka
2019-02-19 12:19 ` Felix Fietkau
2019-02-20 13:00 ` Stanislaw Gruszka
2019-02-20 13:22 ` Lorenzo Bianconi
2019-02-20 16:14 ` Stanislaw Gruszka
2019-02-20 16:22 ` Lorenzo Bianconi
2019-02-20 16:32 ` Stanislaw Gruszka
2019-02-20 16:36 ` Lorenzo Bianconi
2019-03-03 21:16 ` Stefan Wahren
2019-02-18 22:19 ` Stefan Wahren
2019-02-19 10:59 ` Stanislaw Gruszka
2019-02-19 12:11 ` Felix Fietkau
2019-02-19 15:40 ` Alan Stern
2019-02-20 10:20 ` Stanislaw Gruszka
2019-02-20 15:25 ` Alan Stern
2019-02-19 17:02 ` Stefan Wahren
2019-02-12 15:27 ` Alan Stern
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=1967648755.294991.1549752456082@email.ionos.de \
--to=stefan.wahren@i2se.com \
--cc=dianders@chromium.org \
--cc=hminas@synopsys.com \
--cc=linux-usb@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=lorenzo.bianconi@redhat.com \
--cc=nbd@nbd.name \
--cc=sgruszka@redhat.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).