Thread (14 messages) 14 messages, 7 authors, 2010-07-14

Re: [PATCH v2 2/2] Crypto: Talitos: Support for Async_tx XOR offload

From: Kim Phillips <hidden>
Date: 2009-12-16 22:37:07
Also in: linux-crypto, linux-raid, lkml

On Wed, 16 Dec 2009 21:04:58 +0530
Vishnu Suresh [off-list ref] 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 <redacted>
Signed-off-by: Dipen Dudhat <redacted>
Signed-off-by: Maneesh Gupta <redacted>
Signed-off-by: Vishnu Suresh <redacted>
---
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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