From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by ozlabs.org (Postfix) with ESMTP id D0962B6EE9 for ; Thu, 17 Dec 2009 09:47:51 +1100 (EST) Message-ID: <4B296394.9010709@intel.com> Date: Wed, 16 Dec 2009 15:47:48 -0700 From: Dan Williams MIME-Version: 1.0 To: Kumar Gala Subject: Re: [PATCH v2 2/2] Crypto: Talitos: Support for Async_tx XOR offload References: <1260977698-4076-1-git-send-email-Vishnu@freescale.com> <20091216164144.daff5468.kim.phillips@freescale.com> <2868C8CF-584B-4FA7-9C3B-2FACEF77527E@kernel.crashing.org> In-Reply-To: <2868C8CF-584B-4FA7-9C3B-2FACEF77527E@kernel.crashing.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: "herbert@gondor.apana.org.au" , "B04825@freescale.com" , "linux-kernel@vger.kernel.org" , "linux-raid@vger.kernel.org" , "linuxppc-dev@ozlabs.org" , Vishnu Suresh , "linux-crypto@vger.kernel.org" , Dipen Dudhat , Maneesh Gupta , "R58472@freescale.com" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Kumar Gala wrote: >>> 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? > > I agree w/Kim. We need to better understand what the bug is and how to reproduce it so we can get to the root cause. > > Paper taping over it by disabling fsldma is not the right solution. Hopefully this prompts fsldma authors to get involved because the interoperability issue has been out there without comment*, just band-aids, since October. -- Dan * well one comment from Ira saying the interrupt functionality worked for him.