From: Tejun Heo <tj@kernel.org>
To: Yuhong Bao <yuhongbao_386@hotmail.com>
Cc: hancockrwd@gmail.com, david-b@pacbell.net, greg@kroah.com,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support
Date: Thu, 25 Feb 2010 11:58:13 +0900 [thread overview]
Message-ID: <4B85E745.2000904@kernel.org> (raw)
In-Reply-To: <SNT125-W228B049D3934AC288355D8C3400@phx.gbl>
Hello,
On 02/25/2010 11:41 AM, Yuhong Bao wrote:
>
>> gained. There just isn't much point in trying to enable a shiny new
>> feature on an aging platform or technology.
> You mean we should focus on enabling 64-bit DMA for USB 3.0 (xHCI)?
Yeah, probably, in this context, but I was just making a general
statement. Trying out a new feature which hasn't been used widely on
old things doesn't go too well in many cases - the hw vendor and BIOS
writer already moved on, people end up experiencing regressions on
configurations which used to work fine and when that happens, new
comers try out and find out it's broken in strange ways and when that
happens they're much less likely to bother reporting and trying to get
the problem fixed. And, most importantly, when things aren't used
widely, that usually is for a reason - it just doesn't make that much
of a difference.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-02-25 2:48 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-18 3:10 [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support Robert Hancock
2010-02-18 4:26 ` Greg KH
2010-02-18 5:13 ` Robert Hancock
2010-02-18 5:22 ` Greg KH
2010-02-19 0:33 ` Robert Hancock
2010-02-19 0:47 ` Greg KH
2010-02-19 3:46 ` Robert Hancock
2010-02-19 3:54 ` Greg KH
2010-02-20 1:30 ` Robert Hancock
2010-02-20 4:26 ` Greg KH
2010-02-20 5:39 ` David Brownell
2010-02-20 7:15 ` Robert Hancock
2010-02-20 8:07 ` David Brownell
2010-02-20 18:13 ` Robert Hancock
2010-02-23 6:48 ` Yuhong Bao
2010-02-24 0:26 ` Robert Hancock
2010-02-25 2:28 ` Tejun Heo
2010-02-25 2:41 ` Yuhong Bao
2010-02-25 2:58 ` Tejun Heo [this message]
2010-02-25 3:15 ` Yuhong Bao
2010-02-25 3:29 ` Tejun Heo
2010-02-25 4:03 ` Oliver Neukum
2010-02-25 5:25 ` Tejun Heo
2010-02-25 16:14 ` Greg KH
2010-02-25 23:15 ` Robert Hancock
2010-02-25 23:25 ` Greg KH
2010-02-26 7:01 ` Oliver Neukum
2010-02-24 3:53 ` SB600 64-bit DMA BIOS misconfiguration (formerly RE: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support) Yuhong Bao
2010-02-24 4:30 ` Robert Hancock
2010-02-24 4:33 ` Yuhong Bao
2010-02-24 13:30 ` Huang, Shane
2010-02-23 6:28 ` [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support Yuhong Bao
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