On Fri, Jul 22, 2016 at 11:14:06AM -0500, Bjorn Helgaas wrote: > [+cc perf folks] > > On Fri, Jul 22, 2016 at 05:59:51PM +0530, Muni Sekhar wrote: > > Hi All, > > > > > > We have xilinx PCIe endpoint with DMA reference block. > > > > > > The DMA-REF block provides a mechanism to DMA(also supports > > Scatter-Gather DMA) transfer data at the maximum rate between host > > (CPU) memory and a FIFO in the DMA-REF block. > > > > > > DMA-REF block provides the loopback. The intention is to use this > > block in production and self-test, to check that the PCIe bus is > > operating at the expected maximum transfer speed. > > > > > > Does kernel has any standard utilities to test throughput on PCIe interface? > > I know some PCIe controllers devices do have performance monitors, and > perf might support some of them, but I don't know any details. At least some of the Intel Uncore drivers have boxes specific to PCIe (for instance my IVB-EP has an uncore_r2pcie PMU). I'm not aware of any endpoint drivers, but it should not be too hard to create uncore drivers for them. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
