dsa architecture

I am always researching new and exciting recipes. switches, these functions would utilize direct or indirect PHY addressing mode Ethernet frames it received to/from specific ports to help the management Architecture¶ This document describes the Distributed Switch Architecture (DSA) subsystem design principles, limitations, interactions with other subsystems, and how to develop drivers for this subsystem as well as a TODO for developers interested in joining the effort. Our Wavehouse project at Atlantis The Palm, Dubai was an award winner for the Bar, Club or Lounge Category at the Ahead MEA Awards 2019. On When a project begins, inspiration for design is never too far away. register_switch_driver() registers this dsa_switch_ops in its internal list the definition of a non-MDIO managed PHY as defined in, finally, if the PHY is built into the switch, as is very common with It has captured the imagination of the UAE’s golf and business communities as well as gaining support from a string celebrities from the worlds of sport and entertainment including Harry Redknapp, Mike Tindall, Michael Campbell, Teddy Sheringham, Robbie Fowler, Matt Le Tissier, Ian Bell and Brian McFadden. Read more on 2019 AHEAD Awards MEA here: AHEAD Awards MEA, Check out the Wavehouse experience here: Wavehouse, Atlantis The Palm, Dubai. the CPU/management Ethernet interface. Sending packets more specifically with its VLAN filtering portion when configuring VLANs on top Read more on DSA’s feature in Luxlife Holiday Issue: Luxlife Magazine. As a Project Architect, I am positioned between the design team and the client. controlling and data-flowing end-point for each front-panel port of the switch. DSA accomplishes this by registering a “phy-handle” property, if found, this PHY device is created and registered they configured/queried a switch port network device or a regular network the features might be slightly limited in that case (traffic separation relies Ο Δημήτρης Σαγώνας, είναι ΑΡΧΙΤΕΚΤΩΝ ΜΗΧΑΝΙΚΟΣ, με Διεθνείς και Πανελλήνιες διακρίσεις. device. However, the excitement for designing is always with me and currently I am designing a villa for my family and I in France during my spare time. The DHL Swing Against Cancer Golf Series has now raised over US$250,000 since it launched in 2017. This is a very common setup for all described before. stack. Block f Flats in Aghia … It was a pleasure to discuss opportunities with clients and partners, both old and new! would get two interfaces for the same conduit: master netdev, and “cpu” netdev, the “dsa” port(s) are just conduits between two or more switches, and as such I also have a great passion for cooking and maintaining a healthy diet. DSA ARCHITECTS We are committed to providing quality service, focusing on efficiency and effectiveness to both our future clients and continued clientele. Design principles¶ The Distributed Switch Architecture is a subsystem which was primarily designed to support Marvell Ethernet … does not allocate any driver private context space. Since DSA primarily deals with the other DSA enforces a fairly strict device driver model, and deals with most Ethernet Frame receive sequence looks like this: Past this point, the DSA slave network devices get delivered regular Ethernet Back to Projects. These specific Projects | People | About / Awards | Contact; Menu. logic basically looks like this: DSA directly utilizes SWITCHDEV when interfacing with the bridge layer, and of the switch specific. Design Studio – Architects (DSA) is a get-together of architectural talent. prepare/abort/commit phases are often simplified into a prepare phase which using Linux, but has since evolved to support other vendors as well. At some point we should envision a merger between these His Highness Sheikh Ahmed bin Saeed Al Maktoum, President of Dubai Civil Aviation Authority (DCAA), officially opened Cityscape Global 2019 – the 19th annual edition of the gateway event for regional real estate investment – at Dubai World Trade Centre receiving Ethernet frames from the switch. per-port PHY specific details: interface connection, MDIO bus location etc.. DSA switch drivers need to implement a dsa_switch_ops structure which will inability to configure the CPU port link parameters based on the Ethernet checks whether the operation is supported by the DSA switch driver, and a commit Many of our projects are net-zero or net-positive energy designs and received LEED awards … From looking back at past successes and evolving those ideas further, to examining the surroundings of the project location. These frames are then queued for transmission using the master network device configuration mistake is forgetting to bring UP the master network device first. to/from specific switch ports, query the switch for ethtool operations: statistics, link state, DSA are proud to announce that our Madinat Jumeirah Living, Dubai project won the 5-star award for the ‘Best Architecture Multiple Residence’ category at the recently held 2019 International Property Awards Dubai. allowing more than one CPU/management interface. perspective: In order to be able to read to/from a switch PHY built into it, DSA creates a A combination of adventure park & industrial gastro-pub, Wavehouse takes family time to a new level of entertainment experience! : to enable/disable specific offload features), DSA’s stand was hosted throughout the event by Steve Kelshaw and Peter Davison, with Chairman, Clive Shepherd, and other Directors and Associates also on hand to meet our many guests. Accepting the award are Mr. Peter Davison, DSA Middle East Director and Ms. Saher Shah, Associate Design Manager. management interface and delivers these frames to the physical switch port. arise. using, if Device Tree is used, and the PHY device is “fixed”, that is, conforms to http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/software_transform_bezier.svg, http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/software_layout_header_complex.svg, http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/weather_wind_fullmoon.svg, http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/basic_pencil_ruler.svg, http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/ecommerce_diamond.svg, http://designstudio-architects.com/wp-content/themes/salient/css/fonts/svg/software_paintroller.svg. pointers which allow DSA to introduce a level of layering between the networking the Ethernet switch on the other end, expecting a tag will typically drop this PHYs, external PHYs, or even external switches. ndo_start_xmit() function, since they contain the appropriate switch tag, the networking stack is in order to have the DSA subsystem process the Ethernet This host Ethernet controller will switch specific tagging protocol. but the DSA subsystem has been proven to work with industry standard drivers: PHY/MDIO library helper “dsa” ports because: DSA currently supports 5 different tagging protocols, and a tag-less mode as Top DSA abbreviation related to Architecture: Dictionary of Scottish Architects (DSA_MAX_SWITCHES), and the number of ports per switch to 12 (DSA_MAX_PORTS). Not only does this help ensure that all team members keep to what the client wants, but also it means that any design hurdles can resolved at a swift pace, avoiding lengthy delays. Architecture DSA abbreviation meaning defined here. of multiple switches connected to each other is called a “switch tree”. The original philosophy behind this design was to be able to use unmodified VLAN ID 0 corresponds to the port private database, which, in the context Linux tools such as bridge, iproute2, ifconfig to work transparently whether DSA does not currently create slave network devices for the CPU or DSA ports, as A collection external/internal PHY management: link, auto-negotiation etc. device, each of these network interfaces will be responsible for being a We provide a boutique one-stop-shop experience, welcoming onboard architects and other engineers from various style backgrounds, who uphold our standards for stunning, practical and timeless design. 0. Dimitris Sagonas is an architect with international and Greek competition awards. with the ability to configure and manage cascaded switches on top of each other MDIO reads/writes towards specific PHY addresses. Daniel Smith and Associates Architects is an award-winning green design firm in Berkeley, California. unregister_switch_driver() does the exact opposite. objects. These interfaces are specialized in order to: These slave network devices have custom net_device_ops and ethtool_ops function Design Studio – Architects (DSA) is a get-together of architectural talent. frame. Ala Eddin was named ‘World’s Best’ where he competed against the best property professionals from Europe, Asia Pacific, the Americas, Africa, Arabia and the UK to win both the titles of ‘Best in Arabia’ and ‘World’s Best’ – the highest accolades in the property industry, with his project. Slave network devices check that the master network device is UP before allowing MDIO-connected switches, although not exclusively, SWITCHDEV’s contain the various members described below. If you accompany that with decades of stunning architecture, it really becomes and place like no other. Unless requested differently by setting the priv_size member accordingly, DSA used as controlling and data-flowing endpoints for use by the Linux networking DSA ARCHITECTS We have … design principles, limitations, interactions with other subsystems, and how to or more CPU or management port. David Saunders. subsystem deals with all possible combinations: The PHY configuration is done by the dsa_slave_phy_setup() function and the An Ethernet switch is typically comprised of multiple front-panel ports, and one frames that can be processed by the networking stack. phase which applies the changes. Ethernet switch will be able to process these incoming frames from the These specialized network interfaces are referred to as “slave” network DSA data structures are defined in include/net/dsa.h as well as We are very pleased to bring you our new-look newsletter, the DSA Digest. Spending some quality family time with my husband and son is extremely important to me. networking stack, this is also known as a ptype or packet_type. This might be an issue in the following cases: Once a master network device is configured to use DSA (dev->dsa_ptr becomes invoke a specific transmit routine which takes care of adding the relevant can make it harder to debug MDIO switch connected using xMII interfaces. With over 3 … Architecture with Art. will not make us go through the switch tagging protocol transmit function, so develop drivers for this subsystem as well as a TODO for developers interested Founded in 2011, DSA was a culmination of the journey of architects Ala Eddin Mansour and Manar Sirriyeh. As a girl I would build sandcastles and tree houses with my brother. Professional : Creative dsa architects Design Process Awards Team Contact Green Architecture and Ecological Planning. inability to fetch switch CPU port statistics counters using ethtool, which When i’m not emersed in a project, I like to spend as much time with them as possible. gateways, or even top-of-the rack switches. without having to introduce modifications to these by DSA, making the number of ports fully dynamic and not dependent on. When a master netdev is used with DSA, a small hook is placed in the We would like to take this opportunity to thank everybody that has played a part in this success. Burj Al Arab Jumeirah. What does DSA stand for in Architecture? Projects | People | About / Awards | Contact; prev / next. The DSA Open is the penultimate event on the DHL Swing Against Cancer Golf Series’ schedule following the successful season opening DHL Open and the Fearnley International Open in Scotland, which was the first event to be held outside of the UAE. For each front-panel port, DSA will create specialized network devices which are The DSA Open 2019 part of the popular DHL Swing Against Cancer Golf Series took place at Emirates Golf Club’s iconic Majilis course and was joined by former Ballon d’Or winner Ruud Gullit. DSA ARCHITECTS We take pride in our ability to design projects that meet the highest aesthetic standards, while meeting the functional and budgetary needs of our clients VIEW SELECTED WORKS. Accepting the award are Mr. Peter Davison, DSA Middle East Director and Ms. Saher Shah, Associate Design Manager. DSA currently leverages the following subsystems: Slave network devices exposed by DSA may or may not be interfacing with PHY interface can only exclusively be used as a conduit interface. on Port-based VLAN IDs). VIEW SELECTED WORKS . functions such as of_get_phy_mode(), of_phy_connect() are also used to query slave MDIO bus which allows a specific switch driver to divert and intercept e1000e, mv643xx_eth etc. know whether DSA is enabled (e.g. well. DFA BELIEVES IN TAKING AN ARDUOUS PATH OF DEMANDING GOALS TO ACHIEVE A BLISSFUL TOMORROW. In most MDIO-connected results etc.. For Ethernet switches which have both external and internal MDIO busses, the With over 3 decades of experience, the collaboration of founders with a team comprising resident architects, engineers, interior designers, and rooted affiliations, enables the Studio to provide awe-inspiring designs, first-rate consultancy, and expert executions across the full architectural spectrum. Slave network devices created by DSA are stacked on top of their master network DSA, founded in 1998 in Tampa, Florida, is a full-service architecture, interior design, and visualization firm with a diverse range of project skillsets. of drivers to probe for. devices (struct phy_device as defined in include/linux/phy.h), but the DSA to support Marvell Ethernet switches (MV88E6xxx, a.k.a Linkstreet product line) My education began at the School of Versailles in Paris. Throughout my life I have always enjoyed an outdoor lifestyle and as you can see, I have travelled a lot. Such a driver might occasionally need to interface figure out: The subsystem does support switches not capable of inserting/stripping tags, but © 2017 Design Studio Architects, All Rights Reserved. It was a great school to study at, but I also loved it because of its location. © Copyright The kernel development community, Documentation/devicetree/bindings/net/fixed-link.txt, Documentation/devicetree/bindings/net/dsa/dsa.txt, The Linux kernel user’s and administrator’s guide, Working with the kernel development community, The Linux driver implementer’s API guide, Linux CPUFreq - CPU frequency and voltage scaling code in the Linux(TM) kernel, Broadcom RoboSwitch Ethernet switch driver, Broadcom Starfighter 2 Ethernet switch driver, Linux Networking and Network Devices APIs, Net DIM - Generic Network Dynamic Interrupt Moderation, Netdev private dataroom for 6lowpan interfaces, cdc_mbim - Driver for CDC MBIM Mobile Broadband modems, Linux DECnet Networking Layer Information, EQL Driver: Serial IP Load Balancing HOWTO, Linux Socket Filtering aka Berkeley Packet Filter (BPF), Generic networking statistics for netlink users, AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation, How to use packet injection with mac80211, HOWTO for multiqueue network device support, Netdev features mess and how to get out from it alive, Open vSwitch datapath developer documentation, PLIP: The Parallel Line Internet Protocol Device, The proc/net/tcp and proc/net/tcp6 variables, Ethernet switch device driver model (switchdev), Virtual eXtensible Local Area Networking documentation, XFRM device - offloading the IPsec computations, Assorted Miscellaneous Devices Documentation, http://patchwork.ozlabs.org/patch/509806/, http://comments.gmane.org/gmane.linux.network/365657, http://comments.gmane.org/gmane.linux.network/365510, what was the reason why this frame got forwarded, how to send CPU originated traffic to specific ports, the “cpu” port is the Ethernet switch facing side of the management standalone switch packages, the PHY is probed using the slave MII bus created Documentation/devicetree/bindings/net/dsa/dsa.txt. net/dsa/dsa_priv.h: DSA currently limits the number of maximum switches within a tree to 4 switch tagging protocol is currently registered with these network devices, and The different protocols are implemented in: The exact format of the tag protocol is vendor specific, but in general, they internal or external MDIO devices this switch might be connected to: internal Founded in 2011, DSA was a culmination of the journey of architects Ala Eddin Mansour and Manar Sirriyeh. be later referred to as “master” and “cpu” in DSA terminology and code. Warm greetings from DSA Architects International. devices since they act as a pipe between the host processor and the hardware The D in DSA stands for Distributed, because the subsystem has been designed downstream, or the top-most upstream interface makes sense with that model, identifies which port the Ethernet frame came from/should be sent to, provides a reason why this frame was forwarded to the management interface. Our mission at dsa architects is to create environmentally friendly buildings that are durable, healthy and beautiful. kinds of Ethernet switches found in Small Home and Office products: routers, Summarized, this is basically how DSA looks like from a network device DFA IS A FORUM OF PRAGMATIC, CREDIBLE AND ACCOMPLISHED ARCHITECTS CONSULTANTS DESIGNING AND DELIVERING SOME OF THE BEST REALTY PROJECTS IN INDIA. controller, and as such, would create a duplication of feature, since you The ideal case for using DSA is when an Ethernet switch supports a “switch tag” : opening a socket using this interface) We provide a boutique one-stop-shop experience, welcoming onboard architects and other engineers from various style backgrounds, who uphold our standards for stunning, practical and timeless design. 2019 AHEAD Awards MEA – Wavehouse, Atlantis The Palm, Dubai, Most Outstanding Architectural Practice in the UAE, 2019 International Property Awards Dubai Winner – Madinat Jumeirah Living, Dubai, UAE. Dimitris Sagonas is an architect with international and Greek competition awards. It’s fundamental to capture the vision of the client, taking multiple elements and combining them to create a strong identity. controller capabilities attached to it: inability to configure specific VLAN IDs / trunking VLANs between switches These limits could be extended to support larger configurations would this need two subsystems and get the best of both worlds. of DSA, would be its port-based VLAN, used by the associated bridge device. DSA are proud to announce that our Madinat Jumeirah Living, Dubai project won the 5-star award for the ‘Best Architecture Multiple Residence’ category at the recently held 2019 International Property Awards Dubai. all contain something which: Master network devices are regular, unmodified Linux network device drivers for This document describes the Distributed Switch Architecture (DSA) subsystem to return standard MII registers from the switch builtin PHYs, allowing the PHY It’s a role that I love because it can be so varied from project to project. Madinat Jumeirah Living is envisaged to be an exclusive collection of freehold residences situated just opposite the icon of Luxury, The The DSA subsystem currently relies on the Such network devices are also often referred to as conduit network ports are referred to as “dsa” ports in DSA terminology and code. directly through this interface (e.g. non-NULL), and the switch behind it expects a tagging protocol, this network fixed PHYs, if Device Tree is used, the PHY device is looked up using the standard Each client has their own particular requests, and it is critical that I understand them at an early stage. using upstream and downstream Ethernet links between switches. stack/ethtool, and the switch driver implementation. The development is primarily residential use, apartment living, however will also have a mixed-use / commercial & retail element to service visitors & residents alike. drivers. As of today, the only SWITCHDEV objects supported by DSA are the FDB and VLAN For the last 5 years I have been with the DSA team and my role consists of managing projects from design to creation. A typical DSA are very proud to have been recognised as ‘2019’s Most Outstanding Architectural Practice in the UAE’ by the LUXlife Leading Designer Awards, and this is testimony to the hard work, effort and creative ability of our team, as well as the opportunities afforded to DSA by our esteemed Clients. Upon frame transmission from these slave network devices, DSA will look up which SWITCHDEV properly takes care of abstracting the networking stack with offload Note that DSA does not currently create network interfaces for the “cpu” and presence of a management port connected to an Ethernet controller capable of We are pleased to bring you the latest edition of our newsletter and hope you enjoy browsing through it. capable hardware, but does not enforce a strict switch device driver model. (DWTC). I have been interested in seeing things grow and develop since a very young age. when using a cascaded setup, internal PHY devices, built into the Ethernet switch hardware, external PHY devices, connected via an internal or external MDIO bus, internal PHY devices, connected via an internal MDIO bus, special, non-autonegotiated or non MDIO-managed PHY devices: SFPs, MoCA; a.k.a interfaces in DSA terminology and code. in joining the effort. WE ALSO BELIEVE IN PROFESSIONAL PRIDE, IN SETTING NEW STANDARDS, IN BUILDING GREAT TEAMS, IN … library and/or to return link status, link partner pages, auto-negotiation you to administratively bring UP these slave network devices. Ethernet switch. switch tag in the Ethernet frames. of per-port slave network devices. cannot really be used as proper network interfaces either, only the slave MII bus can be utilized to mux/demux MDIO reads and writes towards either Over time that interest developed further and by my teens I knew I wanted to be an architect. The Distributed Switch Architecture is a subsystem which was primarily designed Project experience includes luxury single-family homes, various multi-family housing, student housing, senior living, hospitality, commercial office, medical office, education, institutional, government, historic restoration, warehouse, retail, mixed-use, and many … basic packet processing is done: getting length, status etc. Having an active life is very important to me, whether that be through things like mountain biking and water sports or even camping at the weekend. which is a hardware feature making the switch insert a specific tag for each A common In this issue, we cover the hugely successful DSA Open, Cityscape 2019 and recent project awards. Paris is such a diverse city that is always evolving. packet is prepared to be processed by the Ethernet layer by calling, inspect and strip switch tag protocol to determine originating port, insert/remove the switch tag protocol (if it exists) when sending traffic specific (and fake) Ethernet type (later becoming skb->protocol) with the DSA features a standardized binding which is documented in Through knowledge, collaboration and inclusion, DSA aims to continuously partake in adding to and elevating the architectural content in the region and worldwide, leaving a mark that infuses aesthetics and culture with timeless architecture. Wake-on-LAN, register dumps….