Patent
Simple, reliable, connectionless communication mechanism
| العنوان: | Simple, reliable, connectionless communication mechanism |
|---|---|
| Patent Number: | 9,396,159 |
| تاريخ النشر: | July 19, 2016 |
| Appl. No: | 11/860914 |
| Application Filed: | September 25, 2007 |
| مستخلص: | A server interconnect system includes a first server node operable to send and receive messages and a second server nodes operable to send and receive messages. The system further comprises a first interface unit in communication with the first server node and a second interface unit in communication with the second server node. The first interface unit has a first set of message send registers and a first set of message receive registers. Similarly, the second interface unit has a second set of message send registers and a second set of message receive registers. The server interconnect system also includes a communication switch that receives and routes a message from the first or second server nodes when either of the first or second registers indicates that a valid message is ready to be sent. A method implemented by the server interconnect system is also provided. |
| Inventors: | Wong, Michael K. (Cupertino, CA, US); Sugumar, Rabin A. (Sunnyvale, CA, US); Phillips, Stephen E. (Los Gatos, CA, US); Kurth, Hugh (Lexington, MA, US); Sudhir, Suraj (Sunnyvale, CA, US); Behrens, Jochen (Santa Cruz, CA, US) |
| Assignees: | Oracle America, Inc. (Redwood City, CA, US) |
| Claim: | 1. A server interconnect system for sending a message, the system comprising: a first server node operable to send and receive messages, the first server node having a first receive queue; a second server node operable to send and receive messages, the second server node having a second receive queue; a first interface unit in communication with the first server node, the first interface unit having a first set of message registers, the first set of message registers including: a first send doorbell register, the first send doorbell register receiving information describing a message sent by the first server node including a target node and first server node send memory address; a first send status register, the first send status register receiving data regarding the status of a message sent by the first server node; a first receive queue configuration register, the first receive queue configuration register providing information regarding the first server node receive queue; a first receive queue control register, the first receive queue control register holding information regarding availability of the first receive queue; and a first receive queue status register, the first receive queue status register holding information regarding the current status of the first receive queue; a second interface unit in communication with the second server node, the second interface unit having a second set of message registers, the second set of message registers including: a second send doorbell register, the second send doorbell register receiving information describing a message sent by the second server node including a target node and second server node send memory address; a second send status register, the second send status register receiving data regarding the status of a message sent by the second server node; a second receive queue configuration register, the second receive queue configuration register providing information regarding the second server node receive queue; a second receive queue control register, the second receive queue control register holding information regarding availability of the second receive queue; and a second receive queue status register, the second receive queue status register holding information regarding the current status of the second receive queue; a communication switch, the communication switch being operable to receive and route a message from the first server node to the second receive queue and the second server node to the first receive queue when either the first or second send status registers indicate that a valid message has been sent, wherein each message specifies a target node and a receive queue identification via the first and second send doorbell registers without handshaking between the first and second server nodes before messaging begins to provide connectionless messaging between the first and second server nodes. |
| Claim: | 2. The server interconnect system of claim 1 operable to send and receive messages from the first and second server nodes by a DMA transfer. |
| Claim: | 3. The server interconnect system of claim 1 wherein the send doorbell register includes one or more fields selected from the group consisting of a SEND_VALID field, a TARGET_NODE field, a TARGET_QID field, a SEND_ADDR field, and a SEND_SIZE field. |
| Claim: | 4. The server interconnect system of claim 1 wherein the receive queue configuration register includes one or more fields selected from the group consisting of a RQ_ENTRIES field, a RQ_ADDR field, and a RQ_SIZE field. |
| Claim: | 5. The server interconnect system of claim 1 wherein the receive queue configuration register includes one or more fields selected from the group consisting of a RQ_TAIL field and a ARM_INTR field. |
| Patent References Cited: | 5644784 July 1997 Peek 6782465 August 2004 Schmidt 6868458 March 2005 Kim 6976174 December 2005 Terrell et al. 7103888 September 2006 Cayton et al. 7496095 February 2009 Davis 2001/0049755 December 2001 Kagan et al. 2002/0161943 October 2002 Kim 2002/0165897 November 2002 Kagan et al. 2004/0037319 February 2004 Pandya 2005/0091334 April 2005 Chen et al. 2005/0138242 June 2005 Pope et al. 2005/0177657 August 2005 Pope et al. 2006/0045099 March 2006 Chang et al. 2006/0161696 July 2006 Anjo et al. 2006/0218336 September 2006 Ishizawa et al. 2006/0253619 November 2006 Torudbakken et al. 2007/0266179 November 2007 Chavan et al. 2009/0222598 September 2009 Hayden |
| Other References: | Office Action in U.S. Appl. No. 11/860,934 as mailed Oct. 29, 2009. cited by applicant Office Action in U.S. Appl. No. 11/860,934 as mailed May 27, 2010. cited by applicant |
| Assistant Examiner: | Preval, Lionel |
| Primary Examiner: | Ton, Dang |
| Attorney, Agent or Firm: | Brooks Kushman P.C. |
| رقم الانضمام: | edspgr.09396159 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |