linux-kernel - Re: [PATCH v2 2/2] Crypto: Talitos: Support for Async

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Message-Id: <20091216164144.daff5468.kim.phillips@freescale.com>
Date:	Wed, 16 Dec 2009 16:41:44 -0600
From:	Kim Phillips <kim.phillips@...escale.com>
To:	Vishnu Suresh <Vishnu@...escale.com>
Cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org, dan.j.williams@...el.com,
	linux-crypto@...r.kernel.org, herbert@...dor.apana.org.au,
	B04825@...escale.com, R58472@...escale.com,
	Dipen Dudhat <Dipen.Dudhat@...escale.com>,
	Maneesh Gupta <Maneesh.Gupta@...escale.com>
Subject: Re: [PATCH v2 2/2] Crypto: Talitos: Support for Async_tx XOR
 offload

On Wed, 16 Dec 2009 21:04:58 +0530
Vishnu Suresh <Vishnu@...escale.com> wrote:

> Expose Talitos's XOR functionality to be used for
> RAID Parity calculation via the Async_tx layer.
> 
> Known Issue:
> When used with fsldma, random crashes are observed
> on some platforms. Hence, inter-operability with fsldma
> is currently disabled
> 
> Thanks to Surender Kumar and Lee Nipper for their help in
> realising this driver
> 
> Signed-off-by: Kim Phillips <kim.phillips@...escale.com>
> Signed-off-by: Dipen Dudhat <Dipen.Dudhat@...escale.com>
> Signed-off-by: Maneesh Gupta <Maneesh.Gupta@...escale.com>
> Signed-off-by: Vishnu Suresh <Vishnu@...escale.com>
> ---
> Changes with respect to v1 as per comments received
> o. Rebased to linux-next as of 20091216
> o. The selection is based exclusive of fsldma
> o. Intoduced a new Kernel Configuration variable
>    *. This enables selecting the Cryptographic functionality
>       of Talitos along with fsldma.
>    *. Disables the XOR parity calculation offload, if fsldma enabled
>       either as kernel in-built or as a module
>    *. Once the inter-operability with fsldma is resolved, this option
>       can be removed

wait, why can't the interoperability bug be fixed in the first place?

Kim
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