Transcription of PCI Express I/O Virtualization Explained
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PCI Express I/O Virtualization Explained
PCI Express I/O Virtualization Explained Richard Solomon LSI Corporation 2010 Storage Developer Conference. 2010 LSI Corporation. All Rights Reserved. Agenda PCI Express I/O Virtualization (IOV) Overview Single Root (SR-IOV). Multi-Root (MR-IOV). Secret Three Letter Acronym (TLA) Decoder Ring Programming IOV Devices Configuration Space Mapping Memory Space Mapping Programming Registers 2010 Storage Developer Conference. 2010 LSI Corporation. All Rights Reserved. 2. PCI Express I/O Virtualization 2010 Storage Developer Conference. 2010 LSI Corporation. All Rights Reserved. 3. IOV Overview System System System Image Image Makes one device Image . #2 #3. #1. look like multiple devices SAS Controller Generally motivated SAS Controller SAS Controller by cost SAS Controller Seek performance within the cost Disk Disk Disk Disk envelope Disk Disk Disk Disk 2010 Storage Developer Conference.
E.g. VMWare running Win32 & Linux on a single CPU E.g. Blade server running multi -OS each on a single blade Each “System Image” (SI) needs to “see” it’s own PCI hierarchy Even if NO end devices are actually shared Only its “portion” of shared end devices 6
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