Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1

From	"Steinar H. Gunderson" <sesse@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1
Date	2019-04-27 21:20 +0200
Message-ID	<xRB1D-3BF-7@gated-at.bofh.it> (permalink)
References	(3 earlier) <xemIp-3aB-13@gated-at.bofh.it> <xQoST-G8-3@gated-at.bofh.it> <xRvpg-dI-5@gated-at.bofh.it> <xemIp-3aB-13@gated-at.bofh.it> <xRvpg-dI-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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merge 925167 918800
thanks

On Sat, Apr 27, 2019 at 03:12:35PM +0200, Steinar H. Gunderson wrote:
> Now I have; I rebuilt the Debian kernel with
> 
>   USB=y
>   USB_XHCI_HCD=y
>   CONFIG_USB_XHCI_PLATFORM=y
> 
> and the NIC still comes up at 480M. So, no go.

Correction: After a hard reset, it works.

Even better, this patch makes it work also with everything as modules:

  https://marc.info/?l=linux-usb&m=155321315512949&w=2

and there's already a Debian bug for that, so merging. I've verified
that this patch works for me (after a hard reset).

Debian maintainers: This is a tiny little patch; would you be willing to
accept it for buster, so that ODROID users can get unhampered speeds?

(There's some big.LITTLE stuff that still keeps it back in some scenarios,
but this gets my iperf on XU4 to 620 Mbit/sec output and 920 Mbit/sec input.)

/* Steinar */
-- 
Homepage: https://www.sesse.net/

Thread

Bug#918800: linux-image-4.19.0-1-armmp-lpae: USB 3.0 network card operates only at USB 2.0 speed on Odroid HC1 Benjamin Drung <bdrung@debian.org> - 2019-01-09 15:10 +0100
  Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1 Benjamin Drung <bdrung@posteo.de> - 2019-02-02 13:50 +0100
    Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1 "Steinar H. Gunderson" <sesse@debian.org> - 2019-04-24 14:10 +0200
      Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1 "Steinar H. Gunderson" <sesse@debian.org> - 2019-04-27 15:20 +0200
        Bug#918800: PROBLEM: USB 3.0 NIC operates only at USB 2.0 speed on Odroid HC1 "Steinar H. Gunderson" <sesse@debian.org> - 2019-04-27 21:20 +0200
          Processed: Re: Bug#918800: PROBLEM: USB 3.0 NIC operates only at  USB 2.0 speed on Odroid HC1 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-04-27 21:20 +0200
  Bug#918800: marked as done (linux-image-4.19.0-1-armmp-lpae: USB  3.0 network card operates only at USB 2.0 speed on Odroid HC1) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-02-19 00:50 +0100

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