On Thu, May 22, 2014 at 09:28:45AM +0530, Prashant Upadhyaya wrote: > Hi, > > Suppose I am on x86 with Intel 82599 NIC. > Now I spawn a VM (running FreeBSD as guest OS with Netmap support) > For better I/O performance, I have two main choices -- > > 1. Pass the 82599 NIC as a PCI passthrough device into the VM > 2. Use SRIOV VF of 82599 into the VM > > Question is, will Netmap be able to utilize both the above environments > when I run the userspace application in the guest OS in the VM, or will > there be any issues.
if i remember well we do not have sriov vf support yet in freebsd so you should follow the pci-passthrough approach. It should probably work, i am not 100% sure who is in charge of programming the IOMMU for the guest os when accessing a device through pci passthrough. If this part is missing, the symptoms you should see is that packets will have all bytes set to 0x00 cheers luigi _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
