From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) by dpdk.org (Postfix) with ESMTP id 0F84FCF9 for ; Wed, 28 Jan 2015 15:06:31 +0100 (CET) Received: by mail-wg0-f47.google.com with SMTP id n12so20791442wgh.6 for ; Wed, 28 Jan 2015 06:06:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=7a+eBcjBVhrapJi+n7bz5Z2+AzEFx1qlPrFF+gbH95Y=; b=lSx4DUlr9E8fGD0SRqA3PfDHASlSmCntHrxyddUilH4DytGTgDQzM4pIM4EDt5zv+n V+90+pY+l2v8W3ZeYfU338SwWQuggXytBlkjygDWYBDffsv4l2JJM0AJ2+w8QF9RVVC/ YOGebeS7c/WnpVQNrQARdogE90filsCLA+sA4wA7br+pMVVR9BkGeZKmaRc4Mgn5cMtY 6ChE+JTtgjnAjrrWpPq7N49QX7/o7rOh+AeaEHJnM1FlHpjVCwXXBSbFwjavGp2RSKS4 I0pdHrE865HIMSb7CnDDVST3MLXd53sfyZQOGQ1XIsm4npSDBGy8H2UDRjfrBKNRdk5E pM/A== X-Gm-Message-State: ALoCoQnrPR/Sy6jhImJhXFAJ6bZ8FZBdVwgWht7JVD1Iuj7oDNXmTlfkhZUIeUtThy4bb3Zx0suU X-Received: by 10.194.234.2 with SMTP id ua2mr7771870wjc.40.1422453990865; Wed, 28 Jan 2015 06:06:30 -0800 (PST) Received: from gmail.com (bzq-187-168-31-120.red.bezeqint.net. [31.168.187.120]) by mx.google.com with ESMTPSA id z13sm396275wiv.8.2015.01.28.06.06.29 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 28 Jan 2015 06:06:30 -0800 (PST) Date: Wed, 28 Jan 2015 16:06:27 +0200 From: Dan Aloni To: dev@dpdk.org Message-ID: <20150128140627.GA25787@gmail.com> References: <1421915771-10376-1-git-send-email-dan@kernelim.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1421915771-10376-1-git-send-email-dan@kernelim.com> User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [dpdk-dev] [PATCH] eal/linux: allow to map BARs with MSI-X tables, around them X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Jan 2015 14:06:31 -0000 On Thu, Jan 22, 2015 at 10:36:11AM +0200, Dan Aloni wrote: > While VFIO doesn't allow us to map complete BARs with MSI-X tables, > it does allow us to map around them in PAGE_SIZE granularity. There > might be adapters that provide their registers in the same BAR > but on a different page. For example, Intel's NVME adapter, though > not a network adapter, provides only one MMIO BAR that contains > the MSI-X table. > > Signed-off-by: Dan Aloni > CC: Anatoly Burakov Has anyone reviewed this yet? I am asking because I am interested to know whether someone is aiming to integrate storage controllers support into DPDK, and this patch could be instrumental. -- Dan Aloni