[dpdk-users] using a KNI with vdevs
Cody Doucette
doucette at bu.edu
Mon Oct 1 22:53:20 CEST 2018
Hi,
I'm trying to open a KNI using a virtual device (AF_PACKET), but am stuck
on trying to find something that's analogous to the PCI information for the
virtual device. I am using something like the code from the KNI example
application:
if (dev_info.device)
bus =
rte_bus_find_by_device(dev_info.device);
if (bus && !strcmp(bus->name, "pci")) {
pci_dev = RTE_DEV_TO_PCI(dev_info.device);
conf.addr = pci_dev->addr;
conf.id = pci_dev->id;
}
...
kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
But rte_bus_find_by_device() returns NULL and the program crashes when
calling rte_kni_alloc() because conf.addr is never set.
Is there a way to use a KNI with a vdev?
Cody
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