The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2010
Filed:
Jan. 05, 2004
Michael Kagan, Zichron Yaakov, IL;
Benny Koren, Zichron Yaakov, IL;
Dror Goldenberg, Zichron Yaakov, IL;
Gilad Shainer, Karkoor, IL;
Gil Bloch, Kiryat Ata, IL;
Ariel Shachar, Jerusalem, IL;
Ophir Turbovich, Haifa, IL;
Dror Borer, Nesher, IL;
Diego Crupnicoff, Buenos Aires, AR;
Michael Kagan, Zichron Yaakov, IL;
Benny Koren, Zichron Yaakov, IL;
Dror Goldenberg, Zichron Yaakov, IL;
Gilad Shainer, Karkoor, IL;
Gil Bloch, Kiryat Ata, IL;
Ariel Shachar, Jerusalem, IL;
Ophir Turbovich, Haifa, IL;
Dror Borer, Nesher, IL;
Diego Crupnicoff, Buenos Aires, AR;
Mellanox Technologies Ltd., Ramat Gan, IL;
Abstract
A method for preventing deadlock in communication between a host software application and a network interface card (NIC), comprises writing a doorbell associated with at least one descriptor having a descriptor context to a buffer in the NIC, dropping at least one doorbell from the buffer if the buffer is full, thereby allowing a write of a new doorbell to the buffer, and recovering each dropped doorbell for further execution of descriptors associated with this doorbell. The descriptor execution is in order of posting by the application to the NIC. A system implementing the method comprises a doorbell drop mechanism and a doorbell recovery mechanism.