From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C499CC433ED for ; Wed, 21 Apr 2021 06:57:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A62AB6102A for ; Wed, 21 Apr 2021 06:57:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229536AbhDUG5s (ORCPT ); Wed, 21 Apr 2021 02:57:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41818 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236264AbhDUG5r (ORCPT ); Wed, 21 Apr 2021 02:57:47 -0400 Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com [IPv6:2607:f8b0:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8A90C06174A for ; Tue, 20 Apr 2021 23:57:14 -0700 (PDT) Received: by mail-pf1-x430.google.com with SMTP id g16so14509510pfq.5 for ; Tue, 20 Apr 2021 23:57:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=Ae/x/cyJrTcEHPxZB2U/PFhUVA4cWJFTj9SeLOaJNkw=; b=abwQNiBykGGi4ZWywf9TMJc0GWBDdtE6fwzEq9arvT4uNTvuYXxVRRZzbIWH0P+vMC H/UPZJooAtVy6DnbtbkzIxcXmyljOehq6wPRX7YQufcjyu0AtiTAvi1vqr6qassWyfzU iD1A0Ids+sSi5iokLFPIU51gAtHShjI3rDd/aYm6y+KFyeZFjXde/OOjCIAozvTigMg3 YjD69iTZrodOAv5E+94Q6GTSZRgo3Ly6mfd104H7As8PbwRTtFusV4YOf1hgSxw6MGOJ NQuw0+fMNNjOS7a1rP1kXLasZIPu8Q4/ASK+UE+YEKSTjpnfa8BOPl7NBoIEmEQDAbSk 7/RQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Ae/x/cyJrTcEHPxZB2U/PFhUVA4cWJFTj9SeLOaJNkw=; b=HH/DDgdAjpL/ILnrV3J4Ak40J1HLWJE9Zlr3vWkP6Hf437g/VIqs775IuPlab/m4wa 1w4+AAmpbjP0P7coEZwKbX1cyD+DWKCgNzNX4EIW64PdJCkmJTCGLkS8+pytphSh1Hvk K+uM76Y3YNB0Sfoe2fcqF6lgs8BAm9AUWrFeTxDKfa62Jd2XjFDCehvVSbxtPkcFx/rB dX/6Swrzw1kPDU+7tl54Hzp5DHFh2RzuxP1a/g8MAcsoaU0OQ0yCIbhxJa1++Kvpt5/+ JoD0nGMOzvtyXfA9g3JwyhCa0Ch0gZu9M3qGx3fbrSPHvbylNQcY94M0aTtkNHsj1loF HoOA== X-Gm-Message-State: AOAM533o7OKOXndwS25qdwue3lgFV9tx8qZOGfpw262hegoB/5WSspVA m3Lc6HeqFOULPZg4Daq7repYzbU1buSX2lkTrh4DGVXsmuU= X-Google-Smtp-Source: ABdhPJxYVmQaC9BhMOgfoL8UrBAh/ZyiR4eChKH4tmGqF36se0IpF64BRtlNH1EyIPX+o67N6mJPefZeVUM9qpF/RQs= X-Received: by 2002:aa7:828f:0:b029:200:6e27:8c8f with SMTP id s15-20020aa7828f0000b02902006e278c8fmr28002521pfm.44.1618988234201; Tue, 20 Apr 2021 23:57:14 -0700 (PDT) MIME-Version: 1.0 From: Srivats P Date: Wed, 21 Apr 2021 12:27:01 +0530 Message-ID: Subject: IRQ assignment for queues To: xdp-newbies@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: xdp-newbies@vger.kernel.org Hi, Not a XDP question, but more generic about IRQ assignment for queues. For a NIC which has separate RX and TX queues (no COMBINED queues), I see in /proc/interrupts that only 1 IRQ is assigned. srivatsp@EXA8:~$ sudo ethtool -L enp5s0f1 rx 1 tx 1 combined 0 combined unmodified, ignoring srivatsp@EXA8:~$ ethtool -l enp5s0f1 Channel parameters for enp5s0f1: Pre-set maximums: RX: 4 TX: 4 Other: 0 Combined: 0 Current hardware settings: RX: 1 TX: 1 Other: 0 Combined: 0 srivatsp@EXA8:~$ cat /proc/interrupts | grep enp5s0f1 73: 0 2 0 0 ITS-MSI 2623488 Edge enp5s0f1-rxtx-0 89: 0 0 0 0 ITS-MSI 2623504 Edge enp5s0f1-rbdr-0 92: 0 0 0 0 ITS-MSI 2623507 Edge enp5s0f1-qset-err-0 Is the IRQ for the RX queue or TX queue or both? Does Tx need an IRQ? Srivats