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 C43EE42421 for ; Thu, 19 Jan 2023 23:14:09 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 98D1D40223; Thu, 19 Jan 2023 23:14:09 +0100 (CET) Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) by mails.dpdk.org (Postfix) with ESMTP id 330B2400D5 for ; Thu, 19 Jan 2023 23:14:09 +0100 (CET) Received: by mail-pl1-f170.google.com with SMTP id c6so3660365pls.4 for ; Thu, 19 Jan 2023 14:14:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=2zZW+3okHZAs5ScaCxNaIG933zwBmZg8XmLIL7Gdix4=; b=8D+LyX/9tGy6j0gGLxR0cOn1QI8mRYWHWGg0P6LEhIRvOiNcc8wW8Vt8i/m7AxjB/a 9P1bPSQzWAlri0MoylRanLHkNMdOgG+PsFxFv7MXnWYm0PtBt1nrZKt65rGi70e7MkEm rzDNG6J/yxm3smVE8LFVV5vO3FpaKXZ9eYLqPRCglRw/Mqlg0FCvkaHA7VfT4rYgdGTh cwLGK7B7v7JYlB75lwSTiOonM0at+6qjRRx2gRplKyqqHPpJI5svYrSMpUUOt6wnPVi2 WJmLhQs7yki+kaojQxruuq7z8Kr2+uX6O5BC73DdiP0JxkURrS1vXRXYU0oyfs2TA5oh gf7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2zZW+3okHZAs5ScaCxNaIG933zwBmZg8XmLIL7Gdix4=; b=PnZgzmKUjxKCCuFsY1Whk+gN4SCZAGcpkcLe2p7TfXrYWP0HhswaeyoZMPg8v5afED G+qvjPbOQk6myMQ7HiRGVkdzTlGkPPvaTdFAmMLLY4Nlwk1lEXyYpWUJexNoCRVv4BfV TyuRynHi2KqcJTkswmCanXWmvZNNOxxGm7yl/j8+96FeXa7rzNhjmjTZfYRhguzX4TmD btAi4O7fQu6BUsE+MTOZk1oizqjgmBMU+7Pyv8HB3JpMXg3pt5C7z3xAFlBk+Nog9f4y b+YXw2SMpdkwh3u4/zI1UY2ofPCm8KQl/UNKXlpruV+t0I8Knpj1f5/r0pHSPweZH6XJ Is1g== X-Gm-Message-State: AFqh2krkDU3TS0s2guKRLtXUMms4zCrbjhc3iNNMAmf+w3TAYQpp7sDa 4LY9LzL8WDAL/w8bYyxBXSYyvg== X-Google-Smtp-Source: AMrXdXseus7WMB7hcAgjr1LiIsFs3asaUzbVH6DD1MlFwoTsN9eAGIAt6FbvpygCLWcpwrpjDUXy7w== X-Received: by 2002:a17:902:b711:b0:185:50e4:f59c with SMTP id d17-20020a170902b71100b0018550e4f59cmr10620609pls.8.1674166448320; Thu, 19 Jan 2023 14:14:08 -0800 (PST) Received: from hermes.local (204-195-120-218.wavecable.com. [204.195.120.218]) by smtp.gmail.com with ESMTPSA id l6-20020a170903244600b0019467381dd6sm13580977pls.33.2023.01.19.14.14.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Jan 2023 14:14:08 -0800 (PST) Date: Thu, 19 Jan 2023 14:14:06 -0800 From: Stephen Hemminger To: Priya Ramanathan Cc: users@dpdk.org, Koteswararao Kondepu , andreaf Subject: Re: Does DPDK supports EPOLL for 10G X550T (ixgbe driver) Message-ID: <20230119141406.4ba3d040@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 Thu, 19 Jan 2023 13:43:19 -0600 Priya Ramanathan wrote: > Hello, > > We use two NIC cards - 10G X550T (ixgbe) for the DPDK-based application. > The application uses EPOLL for the UDP communication between the server and > the client. > With the kernel driver, the EPOLL works properly, but when we enable DPDK > support, we cannot see the communication correctly. > > I would like to know whether anyone has tested DPDK with EPOLL on the 10G > X550T model. > Also, please suggest which NIC models have been verified using DPDK with > EPOLL for UDP communication. Thank you. > > Regards, > Priya. DPDK does not directly support UDP it is designed for raw packet applications. It does not have traditional Linux sockets. DPDK does support device interrupt and rte_epoll model. It requires configuring interrupts and using VFIO. See the l3fwd power for an example.