On Tue, Apr 06, 2021 at 08:45:50PM +0800, Yicong Yang wrote: > HiSilicon PCIe tune and trace device(PTT) is a PCIe Root Complex > integrated Endpoint(RCiEP) device, providing the capability > to dynamically monitor and tune the PCIe traffic(tune), > and trace the TLP headers(trace). The driver exposes the user > interface through debugfs, so no need for extra user space tools. > The usage is described in the document. Why use debugfs and not the existing perf tools for debugging? thanks, greg k-h
