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2013 Jun 10
1
Mellanox SR-IOV IB PCI passthrough in Xen - MSI-X pciback issue
...the 2.0-beta OFED drivers), so a 3.5 or newer linux kernel is necessary. I updated the firmware on the ConnectX3 provided by Mellanox (2.11.500) to enable SR-IOV in the firmware. Using this setup I am able to enable up to 64 VFs in InfiniBand mode ( modprobe mlx4_core num_vfs=8 port_type_array=1,1 msi_x=1) within a Xen Dom0 kernel.
21:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3]
Subsystem: Hewlett-Packard Company Device 18d6
Physical Slot: 4
Flags: bus master, fast devsel, latency 0, IRQ 50
Memory at fbf00000 (64-bit, non-prefetchable) [size=1M]
Memory at fb0000...