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 92547A0C52 for ; Mon, 1 Nov 2021 06:50:44 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7D3CB40E28; Mon, 1 Nov 2021 06:50:44 +0100 (CET) Received: from mail-pg1-f173.google.com (mail-pg1-f173.google.com [209.85.215.173]) by mails.dpdk.org (Postfix) with ESMTP id D9B1340DF6 for ; Mon, 1 Nov 2021 06:50:42 +0100 (CET) Received: by mail-pg1-f173.google.com with SMTP id e65so16268893pgc.5 for ; Sun, 31 Oct 2021 22:50:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chillysky-com.20210112.gappssmtp.com; s=20210112; h=from:content-transfer-encoding:mime-version:subject:message-id:date :to; bh=u+XC1xVL97QLmMlxhmSJv1ZT6rxUSsm1n91W7NjotBo=; b=KqMUMRsrDBIZL0WcAfkVoi2vX/m9yD9dlqgzMKS8IaAde2aUrRyc7DwJSVrOGIRAh9 jmPmGvYmWKG0GJVJLu3ZyG/BcWdEfOJ5ZoN1uM9rdOFaJFi2edKL7xef8umeUBxV2Cvk XHSyA7TVnlOUWu/uMJ+Y1dfBqArQ63W64ZE4dKvd9PDlvUNochocWbxMeXNH/lGbpy0V jR3RPqD3i3fK7qPe+YqL0dtmbZA2+yFaM75BA/lrfIsnv16Wh5ibcUjocngjPB/aWU4N 6TWeAmc2qqn228qwZl2M1D/Bgq0YyrRrXXi7c8PnAd1U5B8EBRZ4SctS/ly0Qo3TA8uf yAow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:content-transfer-encoding:mime-version :subject:message-id:date:to; bh=u+XC1xVL97QLmMlxhmSJv1ZT6rxUSsm1n91W7NjotBo=; b=NBZNHQN+nAytd45IQEtdC/OwosDkv8ALa/mhIKnaUaBzSriBOdZoHBEXY4QylmhyFN /R5DiJsxagA3TdWtv7b6FDr0G4ZnongoIeh87CdoysQvWpd0wJuJNMiF79T9rK3Y7gZG raRk/x/H134LitOv1CuNhGcV9UaFtkw86bZk/8BGuuOoAy8rbkkmm1tVTlyWVATAHyGJ XPqsC7IWjF74fwAIBlw+GG+nRpeFQ7NDFdy0jX8UnglW6D3LwuJpjUTod83pCyzoBt1V 8Uph3mFPzx1HmVWTq4JsswbO49sbb8rnSlAfw4CFh7Uv7imXRhBE+KPHV+KuzK7q+QCy ZZEA== X-Gm-Message-State: AOAM531GA6Zy6AhRW29cqsxZeeNRNElgCUsfAIufAMjMRJ3JNhMJTRi9 qfAvyptyBLPnrueMKIW/C003iUpGEDV//Q== X-Google-Smtp-Source: ABdhPJxeEjdKYarSGnOkTD/yECBKvwvMNueTeil/+WiIGI0H1n8s03plxfL3cMKt5968jxo/3aE8IA== X-Received: by 2002:a05:6a00:1a8a:b0:47b:fd77:a7b with SMTP id e10-20020a056a001a8a00b0047bfd770a7bmr26239048pfv.58.1635745841535; Sun, 31 Oct 2021 22:50:41 -0700 (PDT) Received: from smtpclient.apple (DN160vrd000d6kb000000000009c.stanford.edu. [2607:f6d0:d:3516::12c]) by smtp.gmail.com with ESMTPSA id ms15sm367170pjb.26.2021.10.31.22.50.40 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 31 Oct 2021 22:50:41 -0700 (PDT) From: Jack Humphries Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.20.0.1.32\)) Subject: Enable RX interrupts Message-Id: <73CAB2FD-77CD-4C84-BE8B-F100A1CA55F3@chillysky.com> Date: Sun, 31 Oct 2021 22:50:40 -0700 To: users@dpdk.org X-Mailer: Apple Mail (2.3693.20.0.1.32) 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 Hi folks, Hope all are well. I=E2=80=99m trying to enable interrupts in DPDK so = that my network receive thread can sleep on an epoll until packets = arrive. I am using the ixgbe kernel driver and igb_uio userspace driver = with an Intel 82599ES 10Gbps NIC. I'm doing roughly the following to enable the interrupts, but the epoll = never indicates that packets have arrived. The thread only handles = packets when the epoll times out. I don't even see interrupts arrive = from the device when monitoring /proc/interrupts. port_conf.intr_conf.rxq =3D 1; ... CHECK_EQ(rte_eth_dev_rx_intr_ctl_q(kPort, kQueue, RTE_EPOLL_PER_THREAD, RTE_INTR_EVENT_ADD, nullptr), 0);=20 CHECK_EQ(rte_eth_dev_rx_intr_enable(kPort, kQueue), 0); ... rte_epoll_event event; while (true) { int n =3D rte_epoll_wait(RTE_EPOLL_PER_THREAD, &event, = /*maxevents=3D*/1, /*timeout=3D*/1000); if (n =3D=3D 0) { // Timeout expired. } else { // Received RX interrupt. } } Given that I don't see anything coming through in /proc/interrupts, I am = going to start digging through the ixgbe driver. However, I wanted to = ask here first to see if my setup is missing anything obvious. I based = it closely on the l3fwd-power example, though I haven't been able to get = that example up and running yet since my NIC only has one port plugged = in right now and the example requires two (COVID building restrictions). Thanks, Jack Humphries=