From: GKing@nvidia.com (Gary King)
To: linux-arm-kernel@lists.infradead.org
Subject: Problem with non aligned DMA in usbnet on ARM
Date: Wed, 11 Aug 2010 08:54:27 -0700 [thread overview]
Message-ID: <4C62C7B3.2030706@nvidia.com> (raw)
In-Reply-To: <AANLkTinU2JEkeYJHo4tA+kD9Pd_F3YcUTbK9w6igc7s8@mail.gmail.com>
On 08/11/2010 04:38 AM, Martin Fuzzey wrote:
>
>
> It seems to me these fixup functions are not intended to solve
> alignment issues but rather implement device specific framing (such as
> when the hardware packs multiple ethernet frames into a single urb)
>
I sent a patch to the list about 2 weeks ago that added support to
DMA bounce to bounce for misaligned buffers. We have a similar
problem with URB alignment for usbnet on Tegra's HCD:
http://lists.arm.linux.org.uk/lurker/message/20100729.005746.b43fa1d9.en.html
- Gary
next prev parent reply other threads:[~2010-08-11 15:54 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-11 9:41 Problem with non aligned DMA in usbnet on ARM Martin Fuzzey
2010-08-11 9:41 ` Martin Fuzzey
2010-08-11 9:54 ` Russell King - ARM Linux
2010-08-11 9:54 ` Russell King - ARM Linux
2010-08-11 10:11 ` Martin Fuzzey
2010-08-11 10:11 ` Martin Fuzzey
2010-08-11 15:04 ` Greg KH
2010-08-11 15:04 ` Greg KH
2010-08-11 16:08 ` Martin Fuzzey
2010-08-11 16:08 ` Martin Fuzzey
2010-08-11 17:42 ` Greg KH
2010-08-11 17:42 ` Greg KH
2010-08-11 19:07 ` Martin Fuzzey
2010-08-11 19:07 ` Martin Fuzzey
2010-08-11 20:13 ` Greg KH
2010-08-11 20:13 ` Greg KH
2010-08-11 22:31 ` Martin Fuzzey
2010-08-11 22:31 ` Martin Fuzzey
2010-08-12 17:01 ` Matthieu CASTET
2010-08-12 17:01 ` Matthieu CASTET
2010-08-11 19:10 ` Oliver Neukum
2010-08-11 19:10 ` Oliver Neukum
2010-08-11 9:59 ` Matthieu CASTET
2010-08-11 9:59 ` Matthieu CASTET
2010-08-11 11:38 ` Martin Fuzzey
2010-08-11 11:38 ` Martin Fuzzey
2010-08-11 15:54 ` Gary King [this message]
2010-08-11 20:35 ` Russell King - ARM Linux
2010-08-11 22:20 ` Martin Fuzzey
2010-08-11 22:20 ` Martin Fuzzey
2010-08-11 22:47 ` Russell King - ARM Linux
2010-08-11 22:47 ` Russell King - ARM Linux
2010-08-12 17:08 ` Matthieu CASTET
2010-08-12 17:08 ` Matthieu CASTET
2010-08-13 10:06 ` Martin Fuzzey
2010-08-13 10:06 ` Martin Fuzzey
2010-08-13 10:58 ` Oliver Neukum
2010-08-13 10:58 ` Oliver Neukum
2010-08-13 13:42 ` David Brownell
2010-08-13 13:42 ` David Brownell
2010-08-13 13:53 ` Oliver Neukum
2010-08-13 13:53 ` Oliver Neukum
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