Since the test-dma-perf application identifies devices by name, include in the idxd driver documentation a note on device naming when vfio-pci. See also discussion in bugzilla[1].
[1] https://bugs.dpdk.org/show_bug.cgi?id=1268 Signed-off-by: Bruce Richardson <bruce.richard...@intel.com> --- doc/guides/dmadevs/idxd.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/guides/dmadevs/idxd.rst b/doc/guides/dmadevs/idxd.rst index ea101031bf..a9a788ac56 100644 --- a/doc/guides/dmadevs/idxd.rst +++ b/doc/guides/dmadevs/idxd.rst @@ -123,6 +123,13 @@ For example:: $ dpdk-devbind.py -b vfio-pci 6a:01.0 +.. note:: + + Since each individual queue on the HW device is its own separate dmadev instance, + the internal DMA device name includes the HW queue id as a suffix on the PCI id. + The above device when used by a DPDK application will be accessible via dmadevs with names: + ``0000:6a:01.0-q0``, ``00006a:01.0-q1``, etc. + Device Probing and Initialization ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- 2.39.2
