From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f173.google.com (mail-pf0-f173.google.com [209.85.192.173]) by dpdk.org (Postfix) with ESMTP id C7F561BBE for ; Wed, 8 Mar 2017 08:11:46 +0100 (CET) Received: by mail-pf0-f173.google.com with SMTP id w189so11173054pfb.0 for ; Tue, 07 Mar 2017 23:11:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=usc-edu.20150623.gappssmtp.com; s=20150623; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=csqQv+uF7IZfBW7ybW5kwhzpHlo2Cd8BY7QObcF3h0Q=; b=FcQzFsmQzD8m4dCK23IgI82WP/mEvBudoC7+SySc/cu3N9TKQNmJrVRXVrx21QhEZv 58qa2QGRx0qIuV4jJPWIChyMi+2sm1D8u8vz4yXy7UKd5EYbWSgzswgPsmOEMT8+99WP MMPTD2zgjR8zCT2JHe/sSD4U4qcYZ6iSdeIgSSCZcdpvsKP3c97huaoNQ8iTay0HIvF2 4bRzYGjjzUP1MztJceMljjB7bHOC7GlyysntAdY5gGqcMYb4vACXzfyFmXzEUsc8mXGM Zm6j4cUo356/otupPlM7BMW1lVGoXAUj7ymmMR6fPBsy9Eyc1IY08VsvKv2l565Py394 wEhw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=csqQv+uF7IZfBW7ybW5kwhzpHlo2Cd8BY7QObcF3h0Q=; b=XWrDhTH6KNY4xVIcgpoYgU72s6ehafz93+f88wfJgBWQcMXr9XccIOYxkB8WlFm79a W1A1mYjEDEKFXOMK6dgvjdn56PutAh8+s4rWS3P0kTXkfm5vIYxCa/ZeYUe4naiEJiMD aO7/Zv9rwkAAaYaJ6ZF6kBPXbh0YjEAaFRLidJ7ZzpcCJbQtXR2cSV7VSsbdwV0Ef+Kw jm5kE7dURxIWPf0JOv3IhahYrhnVh03GQVGVuD7klfn/+cI+DUNR1IGBUUwh9CxB6M3P /DIcMy3YmHaaR4ov9tvatEFZDao3En7BvPxW2/yzdpp6tL9eDRv2glrBeK+YxUePHPOJ 6TNw== X-Gm-Message-State: AMke39leNikmKfFWy+CA6uCBvQaahrxKTle1ZgKV9frfqfp+XjqgCqJb/WUyNAbZ8942d4ne X-Received: by 10.84.143.1 with SMTP id 1mr6409060ply.81.1488957106112; Tue, 07 Mar 2017 23:11:46 -0800 (PST) Received: from [192.168.0.2] (cpe-104-32-176-193.socal.res.rr.com. [104.32.176.193]) by smtp.gmail.com with ESMTPSA id b7sm3767971pfg.53.2017.03.07.23.11.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 07 Mar 2017 23:11:45 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) From: Nikhil Nanal In-Reply-To: Date: Tue, 7 Mar 2017 23:11:43 -0800 Cc: users Content-Transfer-Encoding: quoted-printable Message-Id: <6E71A877-544C-4DAD-B7DD-CDE8F20CDA07@usc.edu> References: To: raman geetha gopalakrishnan X-Mailer: Apple Mail (2.3259) Subject: Re: [dpdk-users] Reg PMD & NIC X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Mar 2017 07:11:47 -0000 Hi,=20 I guess DPDK works only for Intel NICs. Also, there are a variety of NIC = cards from Intel.=20 The drivers are generally specific to a NIC card or a family of NIC = cards. The DPDK, replaces the existing NIC drivers with its PMD drivers, = , but these PMDs are only compatible with some specified class of Intel NIC cards and so = there are only some supported NICs but not all.=20 thanks Nikhil > On Mar 7, 2017, at 11:05 PM, raman geetha gopalakrishnan = wrote: >=20 > Hi All, >=20 > I have the following basic question. Hope to get an answer / link = where i > can get myself clear. >=20 > 1. In DPDK PMD is optimized driver for an given NIC to get maximum > performance. > That being the case why we are talking about DPDK supported NICs. >=20 > A) My assumption is that NIC interface is standardized so that PMD > should actually work with any NIC (barring some NIC specific = performance > tweaks) > is that correct? >=20 > B) if #A is correct , how can i make changes to PMD to support any = NIC > ? >=20 >=20 > Thanks > Raman