From: Marc Dietich <marvin24-Mmb7MZpHnFY@public.gmane.org>
To: Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>,
Chen Peter-B29397
<B29397-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
"ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org"
<ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
"linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Will Deacon <Will.Deacon-5wv7dgnIgG8@public.gmane.org>,
"stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org"
<stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org>,
Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP
Date: Fri, 2 Sep 2011 13:13:37 +0200 [thread overview]
Message-ID: <201109021313.38224.marvin24@gmx.de> (raw)
In-Reply-To: <74CDBE0F657A3D45AFBB94109FB122FF04B327A383-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
just another measurement point
> Stephen Warren wrote at Thursday:
>
> Here are the results I found:
>
> Harmony:
> Tegra USB3 -> SMSC9514 hub: NOT affected
> (Unplugging LAN cable, or disabling SMSC9514 LAN driver doesn't change
> this)
>
> Seaboard (springbank; clamshell):
> Tegra USB1 -> no hub: Affected
>
> Seaboard (seaboard non-clamshell):
> Tegra USB1 -> no hub: Affected
> Tegra USB3 -> no hub: Affected
>
> TrimSlice:
> Tegra USB3 -> unknown hub: Affected
PAZ00:
ULPI -> SMCS 2512: Affected
Tegra USB3 -> SMSC 2514: Affected
The patch also cures high latencies/packet drops on wifi connected to ULPI via
the 2512 hub. The pen drive was connected to USB3/2514.
> This implies there's something different about Harmony.
>
> Is the USB hub a clue? Seaboard doesn't have one, and although I don't
> know what model TrimSlice uses, I assume it's different since I know
> TrimSlice's Ethernet is not the same as Harmony's.
>
> I don't see anything in board-harmony.c vs. board-seaboard.c that'd affect
> anything USB-related.
>
> Perhaps there's some kind of bootloader or BCT difference. However, my
> Harmony and both Seaboards both use (a very old) U-Boot and BCT from
> ChromeOS, so I don't imagine there's actually much difference there.
WARNING: multiple messages have this Message-ID (diff)
From: marvin24@gmx.de (Marc Dietich)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP
Date: Fri, 2 Sep 2011 13:13:37 +0200 [thread overview]
Message-ID: <201109021313.38224.marvin24@gmx.de> (raw)
In-Reply-To: <74CDBE0F657A3D45AFBB94109FB122FF04B327A383@HQMAIL01.nvidia.com>
just another measurement point
> Stephen Warren wrote at Thursday:
>
> Here are the results I found:
>
> Harmony:
> Tegra USB3 -> SMSC9514 hub: NOT affected
> (Unplugging LAN cable, or disabling SMSC9514 LAN driver doesn't change
> this)
>
> Seaboard (springbank; clamshell):
> Tegra USB1 -> no hub: Affected
>
> Seaboard (seaboard non-clamshell):
> Tegra USB1 -> no hub: Affected
> Tegra USB3 -> no hub: Affected
>
> TrimSlice:
> Tegra USB3 -> unknown hub: Affected
PAZ00:
ULPI -> SMCS 2512: Affected
Tegra USB3 -> SMSC 2514: Affected
The patch also cures high latencies/packet drops on wifi connected to ULPI via
the 2512 hub. The pen drive was connected to USB3/2514.
> This implies there's something different about Harmony.
>
> Is the USB hub a clue? Seaboard doesn't have one, and although I don't
> know what model TrimSlice uses, I assume it's different since I know
> TrimSlice's Ethernet is not the same as Harmony's.
>
> I don't see anything in board-harmony.c vs. board-seaboard.c that'd affect
> anything USB-related.
>
> Perhaps there's some kind of bootloader or BCT difference. However, my
> Harmony and both Seaboards both use (a very old) U-Boot and BCT from
> ChromeOS, so I don't imagine there's actually much difference there.
next prev parent reply other threads:[~2011-09-02 11:13 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-30 16:03 [PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw
2011-08-30 16:03 ` ming.lei at canonical.com
2011-08-30 16:15 ` Alan Stern
2011-08-30 16:15 ` Alan Stern
2011-08-30 16:38 ` Mark Salter
2011-08-30 16:38 ` Mark Salter
2011-08-30 17:15 ` Alan Stern
2011-08-30 17:15 ` Alan Stern
2011-08-30 18:45 ` Mark Salter
2011-08-30 18:45 ` Mark Salter
2011-08-30 17:26 ` Will Deacon
2011-08-30 17:26 ` Will Deacon
[not found] ` <20110830172642.GE3464-SGELLbQ0bobZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2011-08-30 17:48 ` Greg KH
2011-08-30 17:48 ` Greg KH
2011-08-30 17:54 ` Will Deacon
2011-08-30 17:54 ` Will Deacon
[not found] ` <20110830175432.GG3464-SGELLbQ0bobZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2011-08-31 0:23 ` Chen Peter-B29397
2011-08-31 0:23 ` Chen Peter-B29397
2011-08-31 8:49 ` Will Deacon
2011-08-31 8:49 ` Will Deacon
2011-08-31 12:33 ` Chen Peter-B29397
2011-08-31 12:33 ` Chen Peter-B29397
2011-08-31 13:43 ` Mark Salter
2011-08-31 13:43 ` Mark Salter
2011-08-31 15:21 ` Will Deacon
2011-08-31 15:21 ` Will Deacon
2011-08-31 15:27 ` Mark Salter
2011-08-31 15:27 ` Mark Salter
2011-08-31 16:12 ` Marc Zyngier
2011-08-31 16:12 ` Marc Zyngier
2011-08-31 16:55 ` Marc Dietrich
2011-08-31 16:55 ` Marc Dietrich
2011-09-01 10:34 ` Marc Zyngier
2011-09-01 10:34 ` Marc Zyngier
[not found] ` <4E5F5FA9.3010305-5wv7dgnIgG8@public.gmane.org>
2011-09-01 11:13 ` Marc Dietich
2011-09-01 11:13 ` Marc Dietich
2011-09-01 19:08 ` Stephen Warren
2011-09-01 19:08 ` Stephen Warren
2011-09-02 9:50 ` Marc Zyngier
2011-09-02 9:50 ` Marc Zyngier
2011-09-02 17:07 ` Stephen Warren
2011-09-02 17:07 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF04B327A383-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2011-09-02 11:13 ` Marc Dietich [this message]
2011-09-02 11:13 ` Marc Dietich
2011-08-31 17:46 ` Nicolas Pitre
2011-08-31 17:46 ` Nicolas Pitre
2011-08-31 17:51 ` Will Deacon
2011-08-31 17:51 ` Will Deacon
[not found] ` <20110831175147.GI8777-SGELLbQ0bobZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2011-08-31 18:19 ` Rob Herring
2011-08-31 18:19 ` Rob Herring
2011-08-31 18:35 ` Mark Salter
2011-08-31 18:35 ` Mark Salter
2011-08-31 18:49 ` Rob Herring
2011-08-31 18:49 ` Rob Herring
[not found] ` <4E5E8230.9060307-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-08-31 18:58 ` Mark Salter
2011-08-31 18:58 ` Mark Salter
2011-08-31 19:35 ` Will Deacon
2011-08-31 19:35 ` Will Deacon
2011-09-08 22:41 ` Mark Salter
2011-09-08 22:41 ` Mark Salter
[not found] ` <1315521779.2313.29.camel-PDpCo7skNiwAicBL8TP8PQ@public.gmane.org>
2011-10-31 6:49 ` Pandita, Vikram
2011-10-31 6:49 ` Pandita, Vikram
2011-08-31 0:56 ` Ming Lei
2011-08-31 0:56 ` Ming Lei
2011-09-01 23:16 ` Grant Grundler
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=201109021313.38224.marvin24@gmx.de \
--to=marvin24-mmb7mzphnfy@public.gmane.org \
--cc=B29397-KZfg59tc24xl57MIdRCFDg@public.gmane.org \
--cc=Will.Deacon-5wv7dgnIgG8@public.gmane.org \
--cc=greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org \
--cc=linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=marc.zyngier-5wv7dgnIgG8@public.gmane.org \
--cc=ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org \
--cc=msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org \
--cc=swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.