From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B7B95A050B for ; Wed, 13 Apr 2022 17:58:07 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 651C640E2D; Wed, 13 Apr 2022 17:58:07 +0200 (CEST) Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) by mails.dpdk.org (Postfix) with ESMTP id 6990D40694 for ; Wed, 13 Apr 2022 17:58:06 +0200 (CEST) Received: by mail-pl1-f181.google.com with SMTP id c12so2330824plr.6 for ; Wed, 13 Apr 2022 08:58:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=I/q5vQ4ddAHCr/1bnpWYRfuY1L3lbDG2+8kUulqyp48=; b=BAFnRgDW2bia0LQe9Ra3+XxF4vqS11st1ZSmDAdZkyJlXG1xMBloYqQFOIL7f/5+O1 LdQEqBxIe+4hixMskJfGvoRHLYXw/HezmSrdBuS87PrYumyuxemwHekKeo2a/xpzX7jg xgsU0OtADIuOdfbrfHQh70yCq9gGellDkBaiE7G02TBG681xOurjHmRt0LluPlF0E1i1 UfWCwxcvdYsjKnW/vfV7KNyHkaGWz2VlD6vQhP2CSO6jLbrExnEz9VaXCb9A4wq5VNit My+q3RQT8lKPGt8bkrOOR7R6eJ+PEOilx49ZnRYeGRcpqkbkRBAXi64YDWnXWJnZT9t1 Xb9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=I/q5vQ4ddAHCr/1bnpWYRfuY1L3lbDG2+8kUulqyp48=; b=TahQ9ZVKPNgdDDC5JOVjPjIBI1r+rM2pRskKWI6p72CAycqaY0N/knQY51xquW80wu PscbRBjtNe9+Ww4GSz0SftWRaDRFrfOI40nor92RswJAQ8k0kz+Jo8Ax2hyotlGR3IXQ acjGGbI/XF4BqGnPTasLSc/0vJMI92utoUqw3HTlUObxD74cXMUWmAPGkNIhsTDhCuYa QinPrssxYifvBTvRC016E80xIAHVWvtyc2AKBXjcWn//BTKXYn8hurapav0BHKa4/CjY qc1zSQqGbGRKF6WlVe8FKs+lkWOcs1ABV8WYhenzWPJ6ChhAhnyxU4fymiZAvBonpZTK 86uQ== X-Gm-Message-State: AOAM532ae8EikhTgD72ovtRHcHAdQpIxYCN1PUwFiuBo1wJET/vJiAD6 a+Ux+AOSFScJLXwvSrylEjTwomncwxBlZA== X-Google-Smtp-Source: ABdhPJy4m3KFaKrLSRxe4cvZEFCXvGUqrvfmfBITPBXG8zBmM7I5nq1ic9onufBfvbOMbu3/dHV8gg== X-Received: by 2002:a17:902:ec81:b0:158:7eff:792f with SMTP id x1-20020a170902ec8100b001587eff792fmr11208302plg.154.1649865485628; Wed, 13 Apr 2022 08:58:05 -0700 (PDT) Received: from hermes.local (204-195-112-199.wavecable.com. [204.195.112.199]) by smtp.gmail.com with ESMTPSA id 3-20020a17090a034300b001c779e82af6sm3278508pjf.48.2022.04.13.08.58.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Apr 2022 08:58:05 -0700 (PDT) Date: Wed, 13 Apr 2022 08:58:02 -0700 From: Stephen Hemminger To: Yang Luan Cc: users@dpdk.org Subject: Re: running DPDK application on Azure Message-ID: <20220413085802.7506b1f8@hermes.local> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org On Tue, 12 Apr 2022 13:09:51 -0700 Yang Luan wrote: > Hi, > > We have an application using DPDK on AWS and would like to port it to > Azure. What would be recommended PMD to use? If I understand correctly, we > can either use the Netvsc PMD or the vdev_Netvsc PMD. It seems the Netvsc > PMD is newer. Short answer: Netvsc PMD is faster and can handle events better. vdev_netvsc/failsafe/tap is slower but can emulate some types of rte_flow. > > An alternative is to use the mlx4 PMD by only attaching to the mlx NIC's > PCI address. As I understand it, the concern is the mlx nic may not receive > all the packets. We run a proprietary UDP based protocol on top of DPDK. > Are all UDP packets guaranteed to be received by the mlx NIC? That won't work. the MLX device only sees established flows.