From owner-soc-status@freebsd.org Mon Jul 20 06:53:24 2020 Return-Path: Delivered-To: soc-status@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 3C4FB373DFD for ; Mon, 20 Jul 2020 06:53:24 +0000 (UTC) (envelope-from denis.sale@gmail.com) Received: from mail-lj1-f176.google.com (mail-lj1-f176.google.com [209.85.208.176]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B9C9b2k1lz4Xk9 for ; Mon, 20 Jul 2020 06:53:23 +0000 (UTC) (envelope-from denis.sale@gmail.com) Received: by mail-lj1-f176.google.com with SMTP id b25so18989135ljp.6 for ; Sun, 19 Jul 2020 23:53:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=+K2upV+Q9o45E6pgKDxczCONPmtaL4YSGdjD0jLYsG0=; b=ggysU5SttipHalRgHHpQDhCOo6XzFpvGAcCqzhb4H51YHQYJUMoGYGHe4wNLGKzlq1 8BEWc3xbc9rDpTrWlqkEOM+Nu535tUBlX/Zkh1F59A8BNm2/7dgYGANAuNCMIqBAOpby wg6uNOVog5Lc/tqkDqtOwuLy2VrgnbM1pjG8ism9ofev8WFTTWZUO7hTjZs+OpzqfIcS HrqBmkUXeuhDaYCgvC7XpogIHoFon+dZIWjU/T2tCrd6NIlc7ybTS4QubIK6cwrVQtAi 0QLj3jF9JOzJqQjOYBmeGon7ZUaVOu1SeaLAcEjcIkGw/82z/6qESt2FSHNUbrQtS+J4 GUZg== X-Gm-Message-State: AOAM530BU5xP8OBY8IucrTcI19AfaAzZjnQQUpsnwlYNFl4r6cAo0nT1 BYYSmwYlvxfztkrYzTYyewg7HpwtDgc= X-Google-Smtp-Source: ABdhPJy/llnj3KkCvodcTvGYDzi8E0k4whpRBJWAaff2l9Da3i4zhZbPQJZoP8WQ3bVEWjRsm6lhVg== X-Received: by 2002:a2e:9996:: with SMTP id w22mr10621454lji.446.1595228001095; Sun, 19 Jul 2020 23:53:21 -0700 (PDT) Received: from mail-lj1-f179.google.com (mail-lj1-f179.google.com. [209.85.208.179]) by smtp.gmail.com with ESMTPSA id y13sm3051917ljd.20.2020.07.19.23.53.20 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 19 Jul 2020 23:53:20 -0700 (PDT) Received: by mail-lj1-f179.google.com with SMTP id e4so19011912ljn.4 for ; Sun, 19 Jul 2020 23:53:20 -0700 (PDT) X-Received: by 2002:a2e:b4cd:: with SMTP id r13mr9010572ljm.249.1595228000257; Sun, 19 Jul 2020 23:53:20 -0700 (PDT) MIME-Version: 1.0 From: Denis Salopek Date: Mon, 20 Jul 2020 08:53:21 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: [GSoC'20 Update] NetFPGA SUME reference NIC device driver To: soc-status@freebsd.org X-Rspamd-Queue-Id: 4B9C9b2k1lz4Xk9 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of denissale@gmail.com designates 209.85.208.176 as permitted sender) smtp.mailfrom=denissale@gmail.com X-Spamd-Result: default: False [-1.43 / 15.00]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[soc-status@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.59)[-0.588]; RCVD_COUNT_THREE(0.00)[4]; ARC_NA(0.00)[]; NEURAL_HAM_SHORT(-0.39)[-0.387]; RCVD_IN_DNSWL_NONE(0.00)[209.85.208.176:from]; NEURAL_HAM_MEDIUM(-0.46)[-0.456]; FORGED_SENDER(0.30)[denissal@freebsd.org,denissale@gmail.com]; DMARC_NA(0.00)[freebsd.org]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.208.176:from]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[denissal@freebsd.org,denissale@gmail.com]; TAGGED_FROM(0.00)[]; TO_DOM_EQ_FROM_DOM(0.00)[] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: soc-status@freebsd.org X-Mailman-Version: 2.1.33 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: Mon, 20 Jul 2020 06:53:24 -0000 Hi everyone! What was done: - Improved locking mechanisms for RX / TX. In RX path, we release the lock before giving the mbuf to the OS. In TX path, we dequeue the packet before acquiring the lock and sending the packet to hardware. - Removed additional mutexes for control / status register read / write in order to synchronize its locking with the rest of the code. - It is now possible to set the interfaces' MTU. The hardware does not permit frames over 1514 bytes, so it's not possible to set IFCAP_VLAN_MTU capability on the interfaces. - Added sysctl software packet counters. - Enabled padding for smaller packets. - Cleaned the code to better match the style(9) guidelines. TODO: - The detach function is not safe, this needs to be revisited (panics when unloading module if tcpdump is listening on the interface, or if we're in the middle of RX / TX path). - Benchmark the driver on FreeBSD 11.4, 12.1 and CURRENT. - Write a manual page. Project github with more details: https://github.com/denisSal/freebsd-sume Regards, Denis Salopek