Tag: pci-e

Interrupt Handler Stops Working After Kernel Module Reload (Xilinx FPGA / PCIe)

fpga kernel-module linux linux-device-driver pci-e

I am currently working on a PCI driver for the Xilinx Kintex 7 board using the Xilinx PCI IP core (AXI Memory Mapped to PCIe). One problem is, that the interrupt handler stops working when I reload the kernel module. In more detail: Fresh boot of my machine Load the kernel module and monitor the kernel messag…

pci device info access in linux from userspace

linux linux-kernel pci-bus pci-e

I want to access the pci device tree information from user space programatically. Like the root complex and the devices connected to it. How can I do it please let me know. Regards, Pradeep Answer libpci or pcilib (on which lspci is based) uses sysfs, procfs, and possibly other means to access PCI information…