From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0113.outbound.protection.outlook.com [65.55.169.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id B8D6A1A0D99 for ; Tue, 25 Aug 2015 08:35:35 +1000 (AEST) Message-ID: <1440455590.30043.58.camel@freescale.com> Subject: Re: [v2 00/11] Freescale DPAA QBMan Drivers From: Scott Wood To: CC: , , Date: Mon, 24 Aug 2015 17:33:10 -0500 In-Reply-To: <1439410497-19039-1-git-send-email-Roy.Pledge@freescale.com> References: <1439410497-19039-1-git-send-email-Roy.Pledge@freescale.com> Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 2015-08-12 at 16:14 -0400, Roy Pledge wrote: > The Freescale Data Path Acceleration Architecture (DPAA) is a set of > hardware components on specific QorIQ multicore processors. This > architecture provides the infrastructure to support simplified sharing of > networking interfaces and accelerators by multiple CPU cores and the > accelerators. > > The Queue Manager (QMan) is a hardware queue management block that allows > software and accelerators on the datapath to enqueue and dequeue frames in > order to communicate. > > The Buffer Manager (BMan) is a hardware buffer pool management block that > allows software and accelerators on the datapath to acquire and release > buffers in order to build frames. > > This patch set introduces the QBMan driver code that configures initializes > the QBMan hardware and provides APIs for software to use the frame queues > and buffer pools the blocks provide. These drivers provide the base > fuctionality for software to communicate with the other DPAA accelerators > on Freescale QorIQ processors. > > Changes from v1: > - Cleanup Kconfig options > - Changed base QMan and BMan drivers to only be buit in. > Will add loadable support in future patch CONFIG_FSL_BMAN is tristate -- is it not expected to work if you select 'm'? > - Replace panic() call with WARN_ON() panic() is still there. > > > - Replaced PowerPC specific IO accessors with platform independent versions PowerPC accessors, and other PPC-specfic things like cache flushing and memory barriers, are still there. -Scott