From owner-soc-status@freebsd.org Sat Jul 11 09:27:55 2015 Return-Path: Delivered-To: soc-status@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 463709981EE for ; Sat, 11 Jul 2015 09:27:55 +0000 (UTC) (envelope-from ionutalex.teaca@gmail.com) Received: from mail-ob0-x22d.google.com (mail-ob0-x22d.google.com [IPv6:2607:f8b0:4003:c01::22d]) (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 0D874119D; Sat, 11 Jul 2015 09:27:55 +0000 (UTC) (envelope-from ionutalex.teaca@gmail.com) Received: by obbkm3 with SMTP id km3so204397608obb.1; Sat, 11 Jul 2015 02:27:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Ya2xKMAvJAkZqJwpFS8D8HJSkKYK7wwIl+hWqACD/6Y=; b=cgjVPNFHi7DdW+9Vj4ERPOcTseApQPkimhH8jp9jh8JnTrfo2G6puHjjF8Jv/gJcl2 g1F5+tmPPpGyhhaho+VsvgeAH7YCJpSckCzyTRCkHia2DjaJnlZ3ZYT5HDFcCPoOgmy2 PwjllXdGFAuzuUFaB2brAZY9sdga6rrT//DZhstE4PhVHZfRrbGlOwIZrtesiF5e/fyW VjtfIqmMjexdqHvgalImPfhU6+l70Dw3qFdqCGsME8yGE4zgzhjAUExbJoEGuIshOqI7 K8MUCDeBVSney7cswOzrB9GNeiL3z25SmSqj4MZRUQLxlcVNfPfW1cLKKF2QAhukb5kg SirQ== MIME-Version: 1.0 X-Received: by 10.202.80.216 with SMTP id e207mr21777883oib.116.1436606874397; Sat, 11 Jul 2015 02:27:54 -0700 (PDT) Received: by 10.76.84.37 with HTTP; Sat, 11 Jul 2015 02:27:54 -0700 (PDT) In-Reply-To: References: Date: Sat, 11 Jul 2015 12:27:54 +0300 Message-ID: Subject: Re: GSOC 2015 - NE2000 emulation in bhyve Status From: Alex Teaca To: soc-status@freebsd.org Cc: Gavin Atkinson Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: soc-status@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Summer of Code Status Reports and Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Jul 2015 09:27:55 -0000 Hi, I've implemented the reception protocol of the NE2000 nic card. In order to test it, I send in both directions (from guest to host and from host to guest) big files (about 350M) and it works without any problems. At the moment, I want to implement a mechanism to lock the access on the shared resources between the tx and rx flows. Thanks, Alex On Sun, Jun 28, 2015 at 7:16 PM, Alex Teaca wrote: > Hi, > > From the last status report: > > implement 2 commits: > - parse the input string parameter and get the tap name and mac address > from it > - implement some logging and asserts related with the receive buffer ring > > Also, I start to think about the receive protocol which is the next step > of the implementation by reading the specification from the datasheet > and understanding the implementation of the ED driver regarding the way it > receives packets from the NE2000 memory. It is pretty clear > what we need to implement and after a short design I will be able to > implement. > > Thanks, > Alex > > > On Sun, Jun 14, 2015 at 11:37 PM, Alex Teaca > wrote: > >> Hi, >> >> At the moment I am able to configure an IP address on the network >> interface corresponding to the NE2000 NIC. When I ping >> to the host IP, the tcpdump catches both ARP Request (sent by the guest >> using the NE2000 card) and an ARP Reply >> sent by the host OS. So, there is implemented the transmission protocol. >> For reception, the packets are only read >> from the tap device when it is notified by the mevent mechanism. >> >> For mode details, see the commits. >> >> Thanks, >> Alex >> >> >> On Tue, Jun 2, 2015 at 7:45 PM, Alex Teaca >> wrote: >> >>> Hi, >>> >>> I've started the implementation of the NE2000 module. At the moment the >>> ED driver is able to probe the emulated device (RealTek 8029) and add it as >>> a network interface. >>> >>> Some of the features which are implemented: >>> - implement some logging support >>> - clone the /usr/src/sys/dev/ed/if_edreg.h register interface from the >>> ed driver into the bhyve tree sources >>> - implement the NE2000 registers support and an API to access the NIC >>> registers (get and set by offset) >>> - design and implement the Remote DMA protocol so the ED driver can >>> store and load from the NIC's RAM memory >>> >>> Thanks, >>> Alex >>> >>> >> >