From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by dpdk.org (Postfix) with ESMTP id E96DF8D99 for ; Thu, 1 Oct 2015 12:59:04 +0200 (CEST) Received: by wicfx3 with SMTP id fx3so22636172wic.0 for ; Thu, 01 Oct 2015 03:59:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=u1hoSlc7d0Mi5NUGkAru7DtKcGfiqzK8Tcujds5hYhU=; b=c5WAww7RpL2QwYjDYUwl/UuY06DOnEX+wENjxjKEw+rMvcUZsPNzxbjLFJupkQ84te FUueNi42SHlu7lBuDZxIUy+bWpQ41paZTIDcrU0guKU7M9E9lpienKRPboDkLL087CaT VqXEpRDvbraaKVwCWuZtuezH3lhptVQLaVdaX9vYzuX06iH/j7uw2ndslz7Xt25Zo9wB jxSC/x5wanZU3zfh4ZSQs1GMnrDKDU6a/eSPPjftbbLARTgw1aftB0TWGhVsaoLqbhJA ZwRC8Yy8zYpJ0nKUn2YT8cl5ryrIsL9AbKpddwJea4H11ADW0gppLbz9ywdDOrK4oEx9 aKrQ== X-Gm-Message-State: ALoCoQls5wGg6dUGv3QJwiZEsTHJqPPKtZqIdZRsgH9ITJCzUpCsBdt2ljb+CXufMxLDNsncGcMq X-Received: by 10.180.107.195 with SMTP id he3mr2703651wib.35.1443697144675; Thu, 01 Oct 2015 03:59:04 -0700 (PDT) Received: from avi.cloudius ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id t7sm2584493wib.1.2015.10.01.03.59.02 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Oct 2015 03:59:03 -0700 (PDT) To: Stephen Hemminger , hjk@hansjkoch.de, gregkh@linux-foundation.org References: <1443652138-31782-1-git-send-email-stephen@networkplumber.org> From: Avi Kivity Message-ID: <560D11F6.2080609@scylladb.com> Date: Thu, 1 Oct 2015 13:59:02 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1443652138-31782-1-git-send-email-stephen@networkplumber.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org, linux-kernel@vger.kernel.org Subject: Re: [dpdk-dev] [PATCH 0/2] uio_msi: device driver 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: Thu, 01 Oct 2015 10:59:05 -0000 On 10/01/2015 01:28 AM, Stephen Hemminger wrote: > This is a new UIO device driver to allow supporting MSI-X and MSI devices > in userspace. It has been used in environments like VMware and older versions > of QEMU/KVM where no IOMMU support is available. Why not add msi/msix support to uio_pci_generic? > Stephen Hemminger (2): > > *** BLURB HERE *** > > Stephen Hemminger (2): > uio: add support for ioctls > uio: new driver to support PCI MSI-X > > drivers/uio/Kconfig | 9 ++ > drivers/uio/Makefile | 1 + > drivers/uio/uio.c | 15 ++ > drivers/uio/uio_msi.c | 378 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/uio_driver.h | 3 + > include/uapi/linux/Kbuild | 1 + > include/uapi/linux/uio_msi.h | 22 +++ > 7 files changed, 429 insertions(+) > create mode 100644 drivers/uio/uio_msi.c > create mode 100644 include/uapi/linux/uio_msi.h >