I'm working with PCIe Gen 3 cards and from time to time they seem to fall back to PCIe 1 or 2 speeds (according to lspci and also observed by the throughput).When rebooting/power cycling the machine the speed goes back to the full PCIe Gen 3 speed in most cases. Is there a less intrusive way to force a renegotiation of the PCI link speed (trying to bring it back to PCI Gen 3) on e.g. RHEL6 ?
force re-negotiation of PCIe speed on Linux
linux;rhel;pci