Invention Grant
- Patent Title: SAS expander with non-blocking virtual PHY architecture
- Patent Title (中): 具有非阻塞虚拟PHY架构的SAS扩展器
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Application No.: US13071411Application Date: 2011-03-24
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Publication No.: US08626981B1Publication Date: 2014-01-07
- Inventor: Phillip Wayne Roberts , Gregory Arthur Tabor , Kurt Marshall Schwemmer , John Matthew Adams , Armando Garza Benavidez
- Applicant: Phillip Wayne Roberts , Gregory Arthur Tabor , Kurt Marshall Schwemmer , John Matthew Adams , Armando Garza Benavidez
- Applicant Address: US CA San Jose
- Assignee: Maxim Integrated Products, Inc.
- Current Assignee: Maxim Integrated Products, Inc.
- Current Assignee Address: US CA San Jose
- Agency: TIPS Group
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F12/00 ; G06F13/14 ; G06F13/38

Abstract:
A SAS expander includes a switch core, a number of SAS expander phys coupled to the switch core, an SMP originator coupled to the switch core and an SMP receptor coupled to the switch core. In an embodiment, the SMP originator is configured to only send connection requests and the SMP receptor is configured to only receive connection requests. Program instructions stored in non-transient digital storage media include code segments detecting a new connection request, code segments determining whether the new connection request is in conflict with an existing connection request and code segments determining if there is a free destination receptor phy. In an embodiment, the free destination receptor phy is never operationally used for an origination of a connection request.
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