From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f171.google.com (mail-pf0-f171.google.com [209.85.192.171]) by dpdk.org (Postfix) with ESMTP id EBF812A5B for ; Mon, 23 Jan 2017 22:12:47 +0100 (CET) Received: by mail-pf0-f171.google.com with SMTP id y143so43945526pfb.0 for ; Mon, 23 Jan 2017 13:12:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=8s0Zeu3MVwEHVlw2mG7BVqbjxxIdNyB2gweL7x7f7jc=; b=iQozpL9NNYrio5/Rea3zBdujCJVpKrpUw5ZrLaHskogTlMF/+BAvB2a6j+czXzufym zwt5zMUhEQ+kvW0X3dWS6Ui1nUQUnL6DHKcwTASVpmTh9IplqYov/Oztccjno5koHvhW 02f+CxG7yugskqJyAO8WM0PiUQkmPXmmtW6WspVEiMZdXlqOmY4tDvWzJPQDZYaBT+JK 1vXkdTZDPbhZ+86I6U5nQx17UrCoBAxTK5nwJwD6DGoDPZswl9nwGsUx9JNz6jGLtMsq keaSitmP1W+VPw7Bu70sZUnKNsaNhxP1jpuLLdfAPpoLqTf2WCBjyBx4zNzG+gW1J2tD Pqxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=8s0Zeu3MVwEHVlw2mG7BVqbjxxIdNyB2gweL7x7f7jc=; b=B/z3UFzCTPvFFKFDIpWUwKeyQKWJQJSX1uDTGIcX+r6FmxhNUeT7IuP6wj2E3Go6tz YrSH3JG0yEWRFvEjhys+Omck7E5SdKINaTP5m42S4pWJCanO6PGYN0l8uFd8e7h9iBQG jr/JLbzJk/b4GeUuE3PLIP/dA60bbpa++R4GDX9NEVfFzRrbnL+FxYUkt34JCXAHHFxK L33CQcdcLx1wrppikqqzPEuddoAXeQI+HDRj0UhxHAvwH64SN7Pe8xefeLDbabRb5WuY M+RdhbUgCWCb6+DKKc4MTQ1UzQ0rest1Aa5F++5kkC72ZBll8J9NAopnnpbTvFpid4cC 7G3g== X-Gm-Message-State: AIkVDXK/oQ3NY2KfuKi7ddbJdQjUiLfyf5ooRZ0/4MIispEzrZzvR4X/6cZti3fZV4edyA== X-Received: by 10.99.153.26 with SMTP id d26mr35415956pge.44.1485205967008; Mon, 23 Jan 2017 13:12:47 -0800 (PST) Received: from xeon-e3 (204-195-18-65.wavecable.com. [204.195.18.65]) by smtp.gmail.com with ESMTPSA id d69sm39128156pfd.11.2017.01.23.13.12.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Jan 2017 13:12:46 -0800 (PST) Date: Mon, 23 Jan 2017 13:12:39 -0800 From: Stephen Hemminger To: "Su, David W" Cc: "dev@dpdk.org" Message-ID: <20170123131239.31547f0e@xeon-e3> In-Reply-To: <3875C02542CA2945BF761013C1F5B8E57F3DC9AD@ORSMSX109.amr.corp.intel.com> References: <1484953699-3156-1-git-send-email-david.w.su@intel.com> <20170120155058.5177efc4@xeon-e3> <3875C02542CA2945BF761013C1F5B8E57F3DC9AD@ORSMSX109.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH] igb_uio: use non-threaded ISR X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jan 2017 21:12:48 -0000 On Mon, 23 Jan 2017 19:20:02 +0000 "Su, David W" wrote: > If rte_eth_conf.intr_conf.rxq != 0 and rte_eth_conf.intr_conf.lsc = 0 when rte_eth_dev_configure() is called, rx queue interrupts can be enabled/disabled with rte_eth_dev_rx_intr_{enable|disable} and DPDK applications can wait for rx queue interrupts with rte_epoll_wait(). This is the case for both igb_uio and vfio-pci drivers. > > vfio-pci already uses non-threaded ISR, but currently we can only use igb_uio when running DPDK applications in virtual machines. > Can't you use vfio-noiommu mode?