From owner-freebsd-net@FreeBSD.ORG Fri Jan 30 21:11:52 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 26637BEC; Fri, 30 Jan 2015 21:11:52 +0000 (UTC) Received: from mail.ignoranthack.me (ignoranthack.me [199.102.79.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 08F3895E; Fri, 30 Jan 2015 21:11:51 +0000 (UTC) Received: from [192.168.200.212] (unknown [50.136.155.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sbruno@ignoranthack.me) by mail.ignoranthack.me (Postfix) with ESMTPSA id 3B0B31941DD; Fri, 30 Jan 2015 21:11:51 +0000 (UTC) Message-ID: <54CBF396.3090903@ignoranthack.me> Date: Fri, 30 Jan 2015 13:11:50 -0800 From: Sean Bruno Reply-To: sbruno@freebsd.org User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: freebsd-net@freebsd.org Subject: Intel 82574L (em) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Jan 2015 21:11:52 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 http://www.intel.com/content/dam/doc/datasheet/82574l-gbe-controller-datasheet.pdf According to 7.1.11, this device does indeed have 2 queues for stuff and or things. So, basic RSS would be possible in something like an Atom box. I note that the em(4) driver intentionally disables this on initialization. I'm up for some science on my new shiny, soon to be router box. Any reason not to default to 1 queue and allow loader.conf to raise it to 2? sean bcc Intel Domination team -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJUy/OTXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCQUFENDYzMkU3MTIxREU4RDIwOTk3REQx MjAxRUZDQTFFNzI3RTY0AAoJEBIB78oecn5k600IAKpunQhI/hWNE42I+WYW7V1u ry2zsNWjBayJe/fYZYHXQSRBmbiC9VGkGWRqYKMflnC6GSz6LuNJWCnZ46mnNOSK SUKRe8eXLJ+ERQrUO75r8xsYl3D+FXA3bRqVAzCfV7U5kyeRlfGqNypanWXbVKXB 8mTMLKvzi3KSD1oACZC5eMVwGQXVD9u/+999yiWI7KQRg3GnxAYjWrjHuluJzBgl 7vVLbJuG1Ezs7CYl2JnKaWM8Z6kUpkRvNuuka9z8csp1lMlefk2Ta/xMmGTZN9x6 ucc436V3m8qr+fSRs5R9yvkltDeVx/Nu4bLL8BkvQ9nqQuQ3KHGuqvLzhsAkHCk= =8hTG -----END PGP SIGNATURE-----