From owner-freebsd-net@freebsd.org Wed Jan 20 16:48:16 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DF8D3A89144 for ; Wed, 20 Jan 2016 16:48:16 +0000 (UTC) (envelope-from nparhar@gmail.com) Received: from mail-pa0-x236.google.com (mail-pa0-x236.google.com [IPv6:2607:f8b0:400e:c03::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B0C1A1814 for ; Wed, 20 Jan 2016 16:48:16 +0000 (UTC) (envelope-from nparhar@gmail.com) Received: by mail-pa0-x236.google.com with SMTP id yy13so7222030pab.3 for ; Wed, 20 Jan 2016 08:48:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:mail-followup-to:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=uinjxlgZDDrHgmTfzJmH9sM6fXySjRoeNpDjLAMzSmI=; b=XqMDZyIt5u3aew8V1TMUZ7nw1TVMDzYImDBeG3jYXWGGqpkwOT923z/AkgOpPOfi1g /yohO/07hlorPcjnr2t+ZK8vONJo7f0cVbygeTP/v+z+955Q/PySalFKs3LPB4wHl7+c IPjXHU0biMep/5cdX4EWqmkEjniijZ0YqCtW/RiFLd8Lz+llcj+f0NwZ7FW/fe/wkFUU gk6bDMenC8QNfRRMNnFait4B+pYRZILlUu55/tx8HunMxLxK3Nu2/KLJFfAyp4U2u9Xx xnh+w2X4Yb9k3y910flz6J8m5UGIjryVMqOBt3RXbVOefzlB0SbCfR2hrGxyb70EbaV2 P/fw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id :mail-followup-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=uinjxlgZDDrHgmTfzJmH9sM6fXySjRoeNpDjLAMzSmI=; b=XOR9UJ2Qow+ZhQWOBvREZVLaXLBpWkrDtVmn5LBePf9VlW+prxZ5vw/kqT7r/PTM2R SFFFqWFTF1mb+K6aw2kxuAvYjuReb/GqALHG4fk2X03WccOdPcPxUAhBGMDuKAwISZh9 nP7BmjzuNjDMzG58waVwhe8sWOKmV6P9IYziJ0z1exp4J1IpGJ7SvwmWrQQUNac0vZ+I GeWstKkmaku+2mC17oja9AufgtcO3t2vpCVpAjtsfrMh2yVuDVsNWJDuL4MPEi9zbydX gZpA6EJhNLGoJ64rSfQie1PlDOjSPGHQIAQHRMQO9kcaI6/Bnb5hNzOOCJ7DoSULPjY6 HxSw== X-Gm-Message-State: ALoCoQlQ67/2oeHdk8nIyZT47db0UFqZBvIBRkvW4y+DVqptjIMB6Y2w6SM6k2CubUNTGab0A4csqkqwWQ0/OY78RwVnjwdzOA== X-Received: by 10.66.148.99 with SMTP id tr3mr53964122pab.19.1453308496360; Wed, 20 Jan 2016 08:48:16 -0800 (PST) Received: from ox ([2601:641:c001:8a00:acad:4200:4cdf:3770]) by smtp.gmail.com with ESMTPSA id ah10sm50312162pad.23.2016.01.20.08.48.14 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 20 Jan 2016 08:48:14 -0800 (PST) Date: Wed, 20 Jan 2016 08:48:05 -0800 From: Navdeep Parhar To: Teleric Team Cc: "freebsd-net@freebsd.org" Subject: Re: Chelsio cxl and ncxl interface, whats the difference? Message-ID: <20160120164805.GA21735@ox> Mail-Followup-To: Teleric Team , "freebsd-net@freebsd.org" References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jan 2016 16:48:17 -0000 On Wed, Jan 20, 2016 at 03:58:18PM +0000, Teleric Team wrote: > I got a Chelsio T5 520-SO with two ports and I get 2 interfaces for it > port, cxl and ncxl (cxl0 ncxl0 cxl1 ncxl1). Man page mentions cxl is > for T5, what about ncxl? Should I get both or is something wrong? > Which one should I use? (is there any difference?). You should use the cxl interfaces. The 'n' interfaces are for netmap use and show up only if you have netmap support compiled into the kernel (which is the default for HEAD but not any stable/release branch). There is work in progress to move the 'n' interfaces to their own module so that they'll show up only if you load that extra module to get native netmap support for cxl/cxgbe. Regards, Navdeep