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:
Oct. 17, 2017
Filed:
Dec. 09, 2014
Avago Technologies General Ip (Singapore) Pte. Ltd, Singapore, SG;
Ramprasad Raghavan, Colorado Springs, CO (US);
Eugene Saghi, Colorado Springs, CO (US);
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD., Singapore, SG;
Abstract
Embodiments herein provide for efficient memory mapping in a PCIe device when a host changes memory allocations in the device. One PCIe device comprises a plurality of Base Address Registers (BARs) defined by the host. The device also includes a processor with an address space. The processor maps addresses of the address space to the BARs for routing PCIe packets from the host. The processor can determine that the host is reconfiguring the BARs, and, based on the determination, mark packets existing in the computer memory as old, change the BARs in the computer memory as directed by the host, mark packets received after the BAR change as new, process the old packets from the computer memory based on their addresses of the address space until a new packet is reached, and to remap the BARs to the addresses of the address space after the new packet is reached.