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 82004A0A0E; Wed, 28 Apr 2021 13:04:49 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2851E410E3; Wed, 28 Apr 2021 13:04:49 +0200 (CEST) Received: from mail-lj1-f179.google.com (mail-lj1-f179.google.com [209.85.208.179]) by mails.dpdk.org (Postfix) with ESMTP id 448ED410E0 for ; Wed, 28 Apr 2021 13:04:48 +0200 (CEST) Received: by mail-lj1-f179.google.com with SMTP id u20so71786437lja.13 for ; Wed, 28 Apr 2021 04:04:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=tkEe7bM95NEYEeJQ7muLAnapm9Q+lYGqlO3OdBxEFv8=; b=ab5upIQ1JORO/OXE89hcdOv0YiVCV5oEuHjHg4An4sQ2sIgLnpgaO+FI7OlKs0sjXr o37zog58LFR27iK24twNzz4XEI3d/0k2Hqaf8yXEpFJlrH4odHvf5Yg1BpMDBX5CXJA1 9Fc1GleCbclCmaL29ikwCQ+91gmsa8LyXMM7G7lUCpWfIV3FdBH0tUHmzkP5xdZiAktL 69n6nHvgzRuZWSWJDqppUS1NnOBNtaWetuysyT5toEtDJoWKlwgh/XOM1SNWLE3heCGB 5p+RNG0sM8mBj6nK/hI4ukLr/pUFEqCs3CbUzzy5ZwoTKATeYfOAEFaJyaX0Bh4aggxe oIJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=tkEe7bM95NEYEeJQ7muLAnapm9Q+lYGqlO3OdBxEFv8=; b=oHnuqFpBcOXbzN4OtRejjgRxJlY8xDh0pPduU4qW0R23ByTnsUa3YY18LHuHTQgPpN bYfeuWxQ7B1qtrcvFte+ZDfSXvZK3rx/jPIgcmmFWEuJX/jVtjdVSow1aYc9p+4wDE4z sKjfNO5TWGbUiqjswa6fUaCDbU4u5+nUbvUtXW3UO4PPNNjP78mBkhqV1R0KQ68PZWdv XyExBMyk2+/qJIYstAxv/4qZi9GlJYUHNnFBkDT08YFXqscEH4/I4ckwlKjQ4BHTlSJh lTxE/J88lTHAu0kimQzqFhFJ8lxOa9EbJ90T/L14X2R7uD9HT1qaTtxBlg6yl9EltfWU 3hQA== X-Gm-Message-State: AOAM5317ilArOgaeOxTw7JfRQ9BSqe3qzCtkKcXzku7kfZgDpQZITpG0 Wnz5hReZhKOhw/37K/o+Xg7XH2f8EkZlZbeSL5M08A== X-Google-Smtp-Source: ABdhPJxMD3D7LeULq9xr8vanrTE3lpRAgt63jo0PnZ/BkGXrS1KKycBST2AvFgFta9PQdeoSDOx9QMyFR5HBNgX3ohc= X-Received: by 2002:a2e:9957:: with SMTP id r23mr21214232ljj.306.1619607887787; Wed, 28 Apr 2021 04:04:47 -0700 (PDT) MIME-Version: 1.0 References: <20210426104720.2b892045@hermes.local> <81781e97-735c-f584-4148-ff07dedc5cb4@intel.com> In-Reply-To: From: =?UTF-8?Q?Stanis=C5=82aw_Kardach?= Date: Wed, 28 Apr 2021 13:04:37 +0200 Message-ID: To: Bruce Richardson Cc: Honnappa Nagarahalli , "Ananyev, Konstantin" , "Yigit, Ferruh" , Stephen Hemminger , Jerin Jacob , Kathleen Capella , "thomas@monjalon.net" , "dev@dpdk.org" , Dharmik Thakkar , Ruifeng Wang , "david.marchand@redhat.com" , "jerinj@marvell.com" , "hemant.agrawal@nxp.com" , Stephen Hemminger , nd Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: Re: [dpdk-dev] L3fwd mode in testpmd X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Apr 28, 2021 at 12:48 PM Bruce Richardson < bruce.richardson@intel.com> wrote: > > I do not suggest pulling all these in. In our case, I see that the ask > is only on LPM. I am open to hearing what others see as the requirement. > > > I think fib is the planned long-term replacement for lpm, and implements > the same algorithm, so I think first versions should use it. > > If I may add my 2 cents. If a decision is made to implement any FIB/LPM logic in testpmd, it would be great if a vector-only approach that is used in l3fwd could be avoided. While working on RISC-V port I had to disable l3fwd compilation for RISC-V as it requires a vector engine (in l3fwd_em.c). The board I'm currently using has rv64gc ISA which does not have vector extensions and I use testpmd extensively for verification, hence it would be a shame to lose it.