-PCI Access
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-The EAL uses the /sys/bus/pci utilities provided by the kernel to scan the content on the PCI bus.
-To access PCI memory, a kernel module called uio_pci_generic provides a /dev/uioX device file
-and resource files in /sys
-that can be mmap'd to obtain access to PCI address space from the application.
-The DPDK-specific igb_uio module can also be used for this. Both drivers use the uio kernel feature (userland driver).
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