From: Marc Dietrich <Marc.Dietrich@ap.physik.uni-giessen.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Marc Zyngier <marc.zyngier@arm.com>,
Mark Salter <msalter@redhat.com>,
Russell King <linux@arm.linux.org.uk>,
Chen Peter-B29397 <B29397@freescale.com>,
"ming.lei@canonical.com" <ming.lei@canonical.com>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
Will Deacon <Will.Deacon@arm.com>,
"stern@rowland.harvard.edu" <stern@rowland.harvard.edu>,
Greg KH <greg@kroah.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: [PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP
Date: Wed, 31 Aug 2011 18:55:03 +0200 [thread overview]
Message-ID: <201108311855.27711.marc.dietrich@ap.physik.uni-giessen.de> (raw)
In-Reply-To: <4E5E5D80.6080409@arm.com>
Am Mittwoch 31 August 2011, 18:12:48 schrieb Marc Zyngier:
> [...]
> Oddly enough, this patch doesn't do anything on my Tegra setup. In both
> cases, I get around 17MB/s from a crap SD card plugged in a USB reader.
>
> This leads me to suspect that this issue is very much OMAP4 specific.
> Can anyone verify this theory on other some A9 platforms?
That's odd. On my Tegra2 (on ac100) it boosts the transfer rate from 7 to
17 MB/s.
Marc
WARNING: multiple messages have this Message-ID (diff)
From: Marc.Dietrich@ap.physik.uni-giessen.de (Marc Dietrich)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP
Date: Wed, 31 Aug 2011 18:55:03 +0200 [thread overview]
Message-ID: <201108311855.27711.marc.dietrich@ap.physik.uni-giessen.de> (raw)
In-Reply-To: <4E5E5D80.6080409@arm.com>
Am Mittwoch 31 August 2011, 18:12:48 schrieb Marc Zyngier:
> [...]
> Oddly enough, this patch doesn't do anything on my Tegra setup. In both
> cases, I get around 17MB/s from a crap SD card plugged in a USB reader.
>
> This leads me to suspect that this issue is very much OMAP4 specific.
> Can anyone verify this theory on other some A9 platforms?
That's odd. On my Tegra2 (on ac100) it boosts the transfer rate from 7 to
17 MB/s.
Marc
next prev parent reply other threads:[~2011-08-31 16:55 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 [this message]
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
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
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