Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp969703ybh; Tue, 21 Jul 2020 12:22:12 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxuwC2TNUQAtSjnpX2VT4iavPg/3PYwXzuHedGpK9MvuC1Er2Q0edZO9gLgCGEAxWXaaLQm X-Received: by 2002:a05:6402:1c86:: with SMTP id cy6mr27004215edb.30.1595359332606; Tue, 21 Jul 2020 12:22:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595359332; cv=none; d=google.com; s=arc-20160816; b=bizJjoaZ8pSJbE7nUgfqG6duqC9bB0a2giDyVyts2shyv0+lbdOxAW6beuDFywfTIE 7VJ0v6N2E4CId4Jy/kr72XgSgBTWZ/Tbra+v4jlLUvMXjtZhm0MneTSsO8Gs4hs9l8C2 Wv1AVNSBJ2ti7YSx2yPlQ0Nr+fjFXkpQrCMx6nNl9EQe/UOypzfEZOu1vVu3Vfcs26ts OruwruizdCzEkS3JfpxXzglFa/k19G6D5yr+G7Fed/Lcsfr6PGp8ZyyAKi8jpkeREiOL h5ZAAUGgQL2DdPnaA5ejFadSGQgGhfGN/MAB+Z1/T1i/oLXTcYcLjCcmzTCDjVDBmayN B6Fw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=QNObktcUVGBoRq+APRBDo9YNWygmzGeUOkD0EbOwytY=; b=tIbcxKa1zL6nWBDFsQM7QuQWXO66wMk2m63vNgmf0E8YxaAOTf9iIVCC5lyOiW4kCB BPH9EgrDaHJpq0jFeTP3IShC0bX52b1Iuc/Z21QEF/Dl4g6MNoOaajQiZrOV8MqbgA4m o1lbQrIAm2gbaww1m85sJ4yL7P4uox4T9ybTgduDNGrPuJl9EviKzHLadLdTZP6TV1TM 1E4t7gasjqI5MmaJZSBzf6eOynNVNugxLbb7AEMGhJvbum9B3X6axnBF7lPqH6IoTn6i CYlsJGq9ur/884Vs5KvpRVqeRl/87trMuVADMchN4LJ+OcygjCgj1Mui917bCAeTC8Sy DIpg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=t7QKyQb8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id be27si13011878edb.50.2020.07.21.12.21.48; Tue, 21 Jul 2020 12:22:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=t7QKyQb8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730664AbgGUTVa (ORCPT + 99 others); Tue, 21 Jul 2020 15:21:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:58888 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730250AbgGUTVa (ORCPT ); Tue, 21 Jul 2020 15:21:30 -0400 Received: from kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com (unknown [163.114.132.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6F3B1206F2; Tue, 21 Jul 2020 19:21:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595359289; bh=uvcuFv0R6bqByYEk1y2UFO10PzRWHHXQclqrGDwva6Q=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=t7QKyQb8s6wv3ahZjUOMbWYGDUR3vmzeNZrTzR5ncfMPPccXMI0Ij9jPtgbZbnV78 1T93wL1AeCGIZG8zN3KHjcoJ3HZMiGNyGyZgq+7LGuAVVh64iru1o+VYnASx+jYyIu aFHGOelzKORJ61nNURYKYwZHH/Bx0uW2vn6M3OLc= Date: Tue, 21 Jul 2020 12:21:27 -0700 From: Jakub Kicinski To: Chi Song Cc: Stephen Hemminger , David Miller , Haiyang Zhang , KY Srinivasan , Stephen Hemminger , "wei.liu@kernel.org" , "linux-hyperv@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v6 net-next] net: hyperv: Add attributes to show TX indirection table Message-ID: <20200721122127.3ce422f3@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 21 Jul 2020 04:58:59 +0000 Chi Song wrote: > An imbalanced TX indirection table causes netvsc to have low > performance. This table is created and managed during runtime. To help > better diagnose performance issues caused by imbalanced tables, add > device attributes to show the content of TX indirection tables. > > Signed-off-by: Chi Song Sorry for waiting until v6 but sysfs feel like a very strange place to expose this. Especially under the netdev, not the bus device. This looks like device specific state, perhaps ethtool -d is a more appropriate place?