Messages in this thread | | | Date | Tue, 6 Apr 2021 15:49:23 +0200 | From | Greg KH <> | Subject | Re: [PATCH 0/4] Add support for HiSilicon PCIe Tune and Trace device |
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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
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