From sac-owner Tue Nov 4 06:43:33 2008 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id mA4EhW2B017479 for ; Tue, 4 Nov 2008 06:43:33 -0800 (PST) Received: from sunmail4.singapore.sun.com (localhost [127.0.0.1]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id mA4EhWke000684 for ; Tue, 4 Nov 2008 22:43:32 +0800 (SGT) Received: (from noaccess@localhost) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/Submit) id mA4EhVQK000683 for one-pager-not-2b-used-directly; Tue, 4 Nov 2008 22:43:31 +0800 (SGT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id mA4EhJ6W000612 for <@sunmail2sca.sfbay.sun.com:one-pager@sun.com>; Tue, 4 Nov 2008 22:43:31 +0800 (SGT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0K9T0090NCWEZA00@nwk-avmta-1.sfbay.Sun.COM> for one-pager@sun.com (ORCPT one-pager@sun.com); Tue, 04 Nov 2008 06:43:26 -0800 (PST) Received: from brmea-mail-1.sun.com ([192.18.98.31]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0K9T001GXCWDGIE0@nwk-avmta-1.sfbay.Sun.COM> for one-pager@sun.com (ORCPT one-pager@sun.com); Tue, 04 Nov 2008 06:43:26 -0800 (PST) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id mA4EhPNL023124 for ; Tue, 04 Nov 2008 14:43:25 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) id <0K9T00B01CBGUX00@mail-amer.sun.com> (original mail from Jim.Langston@Sun.COM) for one-pager@sun.com (ORCPT one-pager@sun.com); Tue, 04 Nov 2008 07:43:25 -0700 (MST) Received: from [129.152.210.8] by mail-amer.sun.com (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) with ESMTPSA id <0K9T002NMCW24P10@mail-amer.sun.com> for one-pager@sun.com (ORCPT one-pager@sun.com); Tue, 04 Nov 2008 07:43:23 -0700 (MST) Date: Tue, 04 Nov 2008 09:43:14 -0500 From: Jim Langston Subject: [2008/684]LIBSDP Sender: Jim.Langston@Sun.Com To: one-pager@Sun.Com Message-id: <49105F82.1090102@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 User-Agent: Thunderbird 2.0.0.14 (X11/20080505) Status: RO Content-Length: 6915 Template Version: @(#)onepager.txt 1.35 07/11/07 SMI Copyright 2007 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: LIBSDP 1.2. Name of Document Author/Supplier: Jim Langston, Senior Software Engineer ISV Open Source Engineering 1.3. Date of This Document: 10/28/2008 1.3.1. Date this project was conceived: 01/24/2008 1.4. Name of Major Document Customer(s)/Consumer(s): 1.4.1. The PAC or CPT you expect to review your project: 1.4.2. The ARC(s) you expect to review your project: 1.4.3. The Director/VP who is "Sponsoring" this project: carl.hensler.Doe@Sun.Com 1.4.4. The name of your business unit: ISV Engineering 1.5. Email Aliases: 1.5.1. Responsible Manager: cynthia.hardenbrook@sun.com 1.5.2. Responsible Engineer: jim.langston@sun.com 1.5.3. Marketing Manager: 1.5.4. Interest List: 2. Project Summary 2.1. Project Description: libsdp is a LD_PRELOAD-able library that can be used to migrate existing applications use InfiniBand Sockets Direct Protocol (SDP) instead of TCP sockets, transparently and without recompilations. 2.2. Risks and Assumptions: Technical risks: As per the description, libsdp is dependent on Solaris, this work should be checked from release to release of Solaris. NetTCP is ideal for testing the library. Limitations: 1. Applications statically linked with libc will not allow dynamic pre-loading to port these applications to use SDP one needs to replace specific socket calls (within the application) with AF_INET_SDP and recompile. 2. If for some reason the dynamic linker fail to pre-load libc before the libsdp.so is initialized or it does not support RTDL_NEXT, libsdp will fail to find the libc socket API. To overcome this situation a simple implementation of hijacking "socket" call is provided in libsdp_sys. This partial implementation does not support any configuration and is limited to i386 architecture. 3. Non-blocking connect in "both" mode defaults to SDP. Specific rules might be needed for applications to operate properly. 3. Business Summary We have an urgent, immediate need to port an OFA library to Solaris to enable Fidelity Investments to qualify Solaris IB. The Solaris networking org implemented SDP (Sockets Direct Protocol), which is a high performance TCP equivalent over IB. Using it requires opening a socket specifying the SDP protocol. There is an OFA library that enables running unmodified applications that use TCP over SDP. We need someone to port this library to Solaris. It should be just a download, build and test exercise. It would be a great opportunity for you to get some experience with IB technology. There is other OFA user level code that you could port after that. 3.1. Problem Area: An application can utilize InfiniBand SDP instead of TCP socket seemlessly in two ways, the first by setting LD_PRELOAD and the second by adding the library in /etc/ld.so.preload. This is done transparently and without recompilations. 3.2. Market/Requester: Fidelity Investments 3.3. Business Justification: 3.4. Competitive Analysis: 3.5. Opportunity Window/Exposure: 3.6. How will you know when you are done?: This library has currently been tested by a customer in the field. All performance analysis has been done via NetTCP which generates timings on the InfiniBand interface. 4. Technical Description: 4.1. Details: libsdp is open source from OFA (Open Fabrics Alliance) and this project involved porting the source to Solaris and testing completed by customer in field. The application is ported with Sun Studio 12 with all latest patches. Open Solaris is the build and testing environment. The application has been tested on x86 and SPARC. 4.2. Bug/RFE Number(s): No Bug/RFE 4.3. In Scope: 4.4. Out of Scope: 4.5. Interfaces: libsdp intercedes and replaces socket calls, the socket calls effected are: ioctl fcntl socket setsockopt connect listen bind close dup dup2 getpeername getsockname accept select pselect poll 4.6. Doc Impact: No man pages are included 4.7. Admin/Config Impact: libsdp is dependant on libsdp.conf which is installed with the libraries, by default this configuration file will contain the correct configuration to run on Solaris 4.8. HA Impact: No impact 4.9. I18N/L10N Impact: No impact 4.10. Packaging & Delivery: No impact 4.11. Security Impact: No impact 4.12. Dependencies: libsdp is open source and was ported with Sun Studio 12. The interfaces have been fixed within the source code to adhere to Solaris requirements. 5. Reference Documents: All reference documents are located @ OFA. http://www.openfabrics.org 6. Resources and Schedule: 6.1. Projected Availability: Currently available 6.2. Cost of Effort: 6.3. Cost of Capital Resources: 6.4. Product Approval Committee requested information: 6.4.1. Consolidation or Component Name: libsdp 6.4.3. Type of CPT Review and Approval expected: FastTrack 6.4.4. Project Boundary Conditions: http://www.openfabrics.org 6.4.5. Is this a necessary project for OEM agreements: No 6.4.6. Notes: This port was done with a specific target of Open Solaris, both SPARC and x86. The library has been tested on Sparc and x86 with NetTCP for performance analysis, it has also been given to customers to evaluate. 6.4.7. Target RTI Date/Release: 6.4.8. Target Code Design Review Date: 6.4.9. Update approval addition: 6.5. ARC review type: FastTrack 6.6. ARC Exposure: open 6.6.1. Rationale: 7. Prototype Availability: 7.1. Prototype Availability: 7.2. Prototype Cost: