Invention Grant
- Patent Title: Re-ordering buffer for a digital multi-processor system with configurable, scalable, distributed job manager
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Application No.: US15602620Application Date: 2017-05-23
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Publication No.: US10740256B2Publication Date: 2020-08-11
- Inventor: Kalyana Sundaram Venkataraman , Jason Daniel Zebchuk , Gregg Alan Bouchard , Tejas Maheshbhai Bhatt , Hong Jik Kim , Eric Marenger , Ahmed Shahid
- Applicant: Cavium, LLC
- Applicant Address: SG Singapore
- Assignee: Marvell Asia Pte, Ltd.
- Current Assignee: Marvell Asia Pte, Ltd.
- Current Assignee Address: SG Singapore
- Agency: pkalousek.ip
- Main IPC: G06F13/16
- IPC: G06F13/16 ; G06F12/02 ; G06F9/50 ; G06F9/52 ; G06F9/48

Abstract:
A method utilizing a system encompassing a free pool buffer; a deadlock avoidance buffer; and a controller communicatively coupled to the free pool buffer and the deadlock avoidance buffer to reorder out-of-order responses to fetch requests into correct order by: receiving a fetch request on behalf of a consumer; allocating space first in the free pool buffer and when such space is not available then allocating space in a division associated with the consumer in the deadlock avoidance buffer. Issuing segment(s) of the fetch request including associated tag(s) to one of one or more memories; writing response data for each of the segment(s) to the allocated space in the free buffer or the deadlock avoidance buffer according to each of the associated tag(s); and transferring the response data to the consumer according to an entry in an ordering first-in, first-out buffer and an entry in a pending request array.
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