From owner-freebsd-hackers@FreeBSD.ORG Sun Nov 16 15:57:10 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 930D01065674 for ; Sun, 16 Nov 2008 15:57:10 +0000 (UTC) (envelope-from yonyossef.lists@gmail.com) Received: from mail-gx0-f13.google.com (mail-gx0-f13.google.com [209.85.217.13]) by mx1.freebsd.org (Postfix) with ESMTP id 24A018FC0C for ; Sun, 16 Nov 2008 15:57:09 +0000 (UTC) (envelope-from yonyossef.lists@gmail.com) Received: by gxk6 with SMTP id 6so760293gxk.19 for ; Sun, 16 Nov 2008 07:57:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=J0JJ9lnePVCoaivdF+yFixYF9jH6GSh2rN0eI0cWCNQ=; b=wVMZODfe7L2s5BdyW3HyjivDpRu8tCgoVn88BwjalcasI8wTf14V5Tag+VjdjE0VTG B4+1FGt7/OlJf8dgzfqkc7SzMGC0v2Dj7zj9KrtUCTp9ob/5xtCUpIg33Tr9ptdhGSgl DGfsHs/mteswpQdk16y5gKwXeuVkI2G8LrM4k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=BiOvrDhjMd2rCostqcsSJSgkt9MpOjUBw/te4p+/DdrgUJlXyErB5G5iLRoh0cUS1h SPf8AOs5QWlqz7eoVoQxBMRIHV3tyZrF3CM85XEj31TF2Bb5vUkKr0MQW87i5h9BbEzx CmU+Q1TH3gE8T697vY0atvXdVF7iElqvJIrmo= Received: by 10.150.228.2 with SMTP id a2mr6022371ybh.166.1226851029075; Sun, 16 Nov 2008 07:57:09 -0800 (PST) Received: by 10.150.124.5 with HTTP; Sun, 16 Nov 2008 07:57:09 -0800 (PST) Message-ID: <20def4870811160757v76bec46bt5cb134388b7d733f@mail.gmail.com> Date: Sun, 16 Nov 2008 17:57:09 +0200 From: "Yony Yossef" To: "Max Laier" In-Reply-To: <200811161608.51813.max@love2party.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20def4870811160610l5289267erfd7abafb9916b706@mail.gmail.com> <200811161608.51813.max@love2party.net> Cc: freebsd-hackers@freebsd.org, Yehonatan Yossef , liranl@mellanox.co.il Subject: Re: VLAN offloads on FreeBSD 6.3 & 7.0 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Nov 2008 15:57:10 -0000 Thanks! it looks like a solution. On Sun, Nov 16, 2008 at 5:08 PM, Max Laier wrote: > On Sunday 16 November 2008 15:10:19 Yony Yossef wrote: >> Hi All, >> >> I'm working on an Ethernet driver for FreeBSD, currently implementing >> VLAN offloads. >> I have two problems, one is enabling TSO over the VLAN interface and >> the second is enabling the VLAN filtering offload. >> >> About the TSO problem, I'm currently suffering a hugh performance >> penalty since I have no TSO enabled over my vlan interfaces. >> When I create a VLAN interface it does not inherit the features of >> it's mother-interface, e.g. IFCAP_TSO. >> Can it be done on FreeBSD 6.3 / 7.0 ? >> >> Second, my NIC is capable of holding a vlan table on HW, filtering >> vlans on it's own, now I need to find a way to update that HW table >> with added/deleted VLANs in order to use that VLAN filtering offload. >> One way is to recieve a ioctl from the OS of it's vlan table events >> (add, remove). I can't find such ioctl. >> >> Second way is to have direct access from the driver to the OS vlan >> table. I'm not familiar with the interface though (something parallel >> to vlan_group_get_device on linux) or if it's possible at all, can >> anyone help on this one? > > See http://svn.freebsd.org/viewvc/base?view=revision&revision=180510 for the > VLAN tag issue. Simply EVENTHANDLER_REGISTER a function in your driver to > update the hw-table on config/unconfig events. I hope this helps. > > -- > /"\ Best regards, | mlaier@freebsd.org > \ / Max Laier | ICQ #67774661 > X http://pf4freebsd.love2party.net/ | mlaier@EFnet > / \ ASCII Ribbon Campaign | Against HTML Mail and News >