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 4615E42D4D; Sun, 25 Jun 2023 20:48:35 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CAE0D40EDC; Sun, 25 Jun 2023 20:48:34 +0200 (CEST) Received: from mail-pf1-f173.google.com (mail-pf1-f173.google.com [209.85.210.173]) by mails.dpdk.org (Postfix) with ESMTP id 3B40640ED8 for ; Sun, 25 Jun 2023 20:48:34 +0200 (CEST) Received: by mail-pf1-f173.google.com with SMTP id d2e1a72fcca58-666eb03457cso1008260b3a.1 for ; Sun, 25 Jun 2023 11:48:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20221208.gappssmtp.com; s=20221208; t=1687718913; x=1690310913; 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=Zj8yFIjEdyNDt7C2gj8GG0KqQaJDX8Zt/hsIvXYjOx0=; b=jxMB1pY8jGj5RNpXyYtciiFQTmCbB1B3G3vhOhaJJXfb144QNlD7sU1LUiJYKH55/Y E0AiWsNS3WFszy+JLvMLwTnX5WVfFQ3BHIriTtK1hID7qvXXp+GwWKS16h1rQOFGCslf i59YUXBKfiGIFKmHhlWjGUZCUi19CF3NxflSRe3elVHhCfM2B8qiNCQXECpMl/hOa0i6 GyIWx48HSKpuYuTlVTqpzCgkita0BM4SSXVXjj3W7Zlylsn/IRFbgWYWUiTzdtXK2Icv Lfc1CfDLb0sBtMr+rQS3ikObMcWNBU2Ej2ZK7DAtTlDN2vZ7b0YYLZfWWE7unb5L497n FXAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687718913; x=1690310913; 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=Zj8yFIjEdyNDt7C2gj8GG0KqQaJDX8Zt/hsIvXYjOx0=; b=LXTxm/YUnuQ78qvfp8EaB89VL6JrjYatu/tRjySuWEwAWmTpce1vC456s+qoCUVyzc raSfr0uDvD4/nO1ouw61GjULtbsdYv1WHQ2XyV5iaIgzDaD6GUi1RaI7cRtqj7XZ7z7Z mkTVS9f4CkRO2hPvNQ2OIpOSFjlU4DjJHNIvJP/usmGpHVL/65uCaN10oSuYGNKpZ0tJ 3F3aVUXfph0qhZ8Z+oxHIz907GbIqAmA01AiCuxxNgvJ98kI9j6R3fF2L+r6c3M2TNrl KTdDVsqbI5lWea4iTt6uxZUzRzMnh5a85fXus1F+nwF4EjlT87Mu/LgxCA4xz+PvO4yk BxoQ== X-Gm-Message-State: AC+VfDzUtSiSVyN+iIOEvxC57t5h7Y6pLvrel4J35UCjXB6AW3xX+T5Z TIoHuUILsUmXIwt/W1ErUUH0lQ== X-Google-Smtp-Source: ACHHUZ7RnCk4diePOgVXUCd9E5s59AIhcZVjAvDfclcPSg+32sCZcrwPX0oNuFepkmZeqsXAnhf7/Q== X-Received: by 2002:a05:6a20:12cb:b0:126:1700:f6eb with SMTP id v11-20020a056a2012cb00b001261700f6ebmr3683495pzg.16.1687718912994; Sun, 25 Jun 2023 11:48:32 -0700 (PDT) Received: from hermes.local (204-195-120-218.wavecable.com. [204.195.120.218]) by smtp.gmail.com with ESMTPSA id y16-20020aa78050000000b0065434edd521sm2492710pfm.196.2023.06.25.11.48.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Jun 2023 11:48:31 -0700 (PDT) Date: Sun, 25 Jun 2023 11:48:29 -0700 From: Stephen Hemminger To: Nageswara Rao Cc: dev@dpdk.org, ASHIQUE CK Subject: Re: DPDK22 issue: Unable to set more than 4 queues in Azure Message-ID: <20230625114829.7f49a9ff@hermes.local> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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 On Thu, 22 Jun 2023 22:06:10 +0530 Nageswara Rao wrote: > Hi All, >=20 > We are observing the following issue with DPDK22.11. We didn=E2=80=99t fi= nd any > upstream patches for this issue on the DPDK github. Is there any known > issue, please let us know. >=20 >=20 >=20 > *Issue:* >=20 > On Azure platform, we are unable to configure more than 4 queues. When we > try to configure more than 4 queues its failing with =E2=80=9CEAL: Cannot= send more > than 8 FDs=E2=80=9D error. >=20 > Here I am pasting the working and failing testpmd logs. >=20 > Please note that this issue is not observed in DPDK 21.11. >=20 You should be using the native netvsc PMD, not the vdev_netvsc,failsafe,tap= kludge. I don't work on Azure any more but I suspect the issue is that the default in the kernel for TAP is for the number of queues =3D=3D number of cores. You aren't going to see any real benefit from having more queues than the number of DPDK cores.