|From:||"Love, Robert W" <firstname.lastname@example.org>|
|To:||<email@example.com>, "Waskiewicz Jr, Peter P" <firstname.lastname@example.org>|
|Subject:||[ANNOUNCE] Open-FCoE - Fibre Channel over Ethernet Project|
|Date:||Tue, 27 Nov 2007 10:49:11 -0800|
|Cc:||<email@example.com>, <firstname.lastname@example.org>, <email@example.com>, "Rob Love" <firstname.lastname@example.org>, "Love, Robert W" <email@example.com>, "Leech, Christopher" <firstname.lastname@example.org>, "Zou, Yi" <email@example.com>, "Dev, Vasu" <firstname.lastname@example.org>, <email@example.com>, <firstname.lastname@example.org>, <email@example.com>, "Kok, Auke-jan H" <firstname.lastname@example.org>, "Ronciak, John" <email@example.com>, "Van De Ven, Arjan" <firstname.lastname@example.org>, "Mike Christie" <email@example.com>|
Hello Linux Community, I'd like to introduce a new Open Source project named Open-FCoE. FCoE is the acronym for Fibre Channel over Ethernet, which is the encapsulation of Fibre Channel frames within Ethernet packets. FCoE will allow systems with an Ethernet adapter and a Fibre Channel Forwarder to login to a Fibre Channel fabric (the FCF is a "gateway" that bridges the LAN and the SAN). That fabric login was previously reserved exclusively for Fibre Channel HBAs. This technology reduces complexity in the data center by aiding network convergence. It is targeted for 10Gps Ethernet NICs but will work on any Ethernet NIC supporting pause frames. Our code base provides a Fibre Channel protocol processing module as well as an Ethernet based transport module. The Open-FC module acts as a LLD for SCSI and the Open-FCoE transport uses net_device to send and receive packets. We've set up a "web home" for this project at www.Open-FCoE.org. Its purpose is to support development and users; it's very light on content right now. We have a lot of code and it will take time for us to harden and improve upon it. We're still early in development but are making this code available as soon as possible so that our project's development can truly be open. This is our code's organization as it is today. 1) git://open-fcoe.org/openfc/open-fcoe-upstream.git This repository is based on the SCSI 2.6.24 bug fix tree. Two patches are applied to add our code and resolve any compatibility problems between our code and 2.6.24. 2) git://open-fcoe.org/openfc/open-fcoe.git This repository contains our user space tools. It also contains an out-of-kernel Makefile that allows a user to build the kernel modules within this layout. Pulling our kernel code from open-fcoe-upstream into this code base and then tarring it up provides an easily distributable package. 3) git://open-fcoe.org/openfc/open-fcoe-misc.git This repository contains our SW target code. The SW target allows someone to connect two systems back-to-back and run FCoE traffic from one to another. Currently our target uses SCST which is not upstream. This is causing us a problem because the target shares code with the initiator. Since the initiator is building with 2.6.24 and SCST isn't we're in a bind. A priority of ours will be to get the target back to a better shape as it's our primary development tool. We also have a lot of things to fix. Here are our initial concerns, 1) Kernel/Userspace interaction needs direction. Currently we're using ioctls, which are no longer desirable. We're planning to change the implementation to netlink. Also, some non-data path code will probably need to move to user space. Open-iSCSI has spent a lot of time on its kernel to user interaction; we will likely borrow from that model as much as we can. 2) SW Target and its integration with the kernel. 3) Reduction of code, removal of unnecessary abstraction. 4) Non-GPL code. We're currently using a BSD queue.h and some CRC code from BSD as well. We need to convert this code to use kernel code. 5) Documentation. Our basic documentation needs some help so people can use the initiator and target easily. We have a mailing list established on our website, but believe that the community will want us to discuss this technology on the SCSI mailing list. That is where we plan to start discussing this code. We're looking forward to building a strong community around this technology and code base. We're eager to start coding and improving our code with any other community contributors! Robert Love Open-FCoE.org - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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