Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751343AbWBCS0E (ORCPT ); Fri, 3 Feb 2006 13:26:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751352AbWBCS0D (ORCPT ); Fri, 3 Feb 2006 13:26:03 -0500 Received: from xenotime.net ([66.160.160.81]:32694 "HELO xenotime.net") by vger.kernel.org with SMTP id S1751340AbWBCS0B (ORCPT ); Fri, 3 Feb 2006 13:26:01 -0500 Date: Fri, 3 Feb 2006 10:25:58 -0800 (PST) From: "Randy.Dunlap" X-X-Sender: rddunlap@shark.he.net To: Pierre Ossman cc: Dan Williams , linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, Evgeniy Polyakov , Chris Leech , "Grover, Andrew" , Deepak Saxena Subject: Re: [RFC][PATCH 000 of 3] MD Acceleration and the ADMA interface: Introduction In-Reply-To: <43E39F2B.5080408@drzeus.cx> Message-ID: References: <1138931168.6620.8.camel@dwillia2-linux.ch.intel.com> <43E39F2B.5080408@drzeus.cx> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1416 Lines: 31 On Fri, 3 Feb 2006, Pierre Ossman wrote: > Dan Williams wrote: > > > > The ADMA (Asynchronous / Application Specific DMA) interface is proposed > > as a cross platform mechanism for supporting system CPU offload engines. > > The goal is to provide a unified asynchronous interface to support > > memory copies, block xor, block pattern setting, block compare, CRC > > calculation, cryptography etc. The ADMA interface should support a PIO > > fallback mode allowing a given ADMA engine implementation to use the > > system CPU for operations without a hardware accelerated backend. In > > other words a client coded to the ADMA interface transparently receives > > hardware acceleration for its operations depending on the features of > > the underlying platform. > > > > I'm wondering, how common is this ADMA acronym? I've been writing a MMC > driver for some hardware where specifications aren't available. I have > found one document which list an "ADMA system address" register, with a > width of 64 bits. What are the odds of this being something that > conforms to said interface? oh dear, i thought it was either Advanced or Accelerated DMA, fwiw. -- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/