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  2. PCI configuration space - Wikipedia

    en.wikipedia.org/wiki/PCI_configuration_space

    One of the major improvements the PCI Local Bus had over other I/O architectures was its configuration mechanism. In addition to the normal memory-mapped and I/O port spaces, each device function on the bus has a configuration space, which is 256 bytes long, addressable by knowing the eight-bit PCI bus, five-bit device, and three-bit function numbers for the device (commonly referred to as the ...

  3. Single-root input/output virtualization - Wikipedia

    en.wikipedia.org/wiki/Single-root_input/output...

    A single physical PCI Express bus can be shared in a virtual environment using the SR-IOV specification. [1] [2] The SR-IOV offers different virtual functions to different virtual components (e.g. network adapter) on a physical server machine. SR-IOV uses physical and virtual functions to control or configure PCIe devices.

  4. lspci - Wikipedia

    en.wikipedia.org/wiki/Lspci

    Using lspci -v, lspci -vv, or lspci -vvv will display increasingly verbose details for all devices.-d [<vendor>]:[<device>] option specifies the vendor and device ID of the devices to display.

  5. Root complex - Wikipedia

    en.wikipedia.org/wiki/Root_complex

    The PCIe Root Complex holds a master copy of a 'Type 1 Configuration Table' that defines the host memory space that is accessible from each Endpoint device. In addition, each PCIe Endpoint device holds a master copy of their own memory space map in the host system memory as a 'Type 0 Configuration Table', this configuration table in each device ...

  6. Configuration space - Wikipedia

    en.wikipedia.org/wiki/Configuration_space

    Configuration space may refer to: . Configuration space (physics) Configuration space (mathematics), the space of arrangements of points on a topological space PCI configuration space, the underlying way that the Conventional PCI, PCI-X and PCI Express perform auto configuration of the cards inserted into their bus

  7. Compute Express Link - Wikipedia

    en.wikipedia.org/wiki/Compute_Express_Link

    On August 2, 2022, the CXL Specification 3.0 was released, based on PCIe 6.0 physical interface and PAM-4 coding with double the bandwidth; new features include fabrics capabilities with multi-level switching and multiple device types per port, and enhanced coherency with peer-to-peer DMA and memory sharing.

  8. GM CFO reveals banned word inside company, saying it's a new GM

    www.aol.com/gm-cfo-reveals-banned-word-040022447...

    In August, GM eliminated nearly 1,500 from its software division globally. ... This article originally appeared on Detroit Free Press: GM CFO Paul Jacobson: 'Normalization' is banned at automaker.

  9. Input–output memory management unit - Wikipedia

    en.wikipedia.org/wiki/Input–output_memory...

    A peripheral using the PCI-SIG PCIe Address Translation Services (ATS) Page Request Interface (PRI) extension can detect and signal the need for memory manager services. For system architectures in which port I/O is a distinct address space from the memory address space, an IOMMU is not used when the CPU communicates with devices via I/O ports ...