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connectx
2013 Jun 10
1
Mellanox SR-IOV IB PCI passthrough in Xen - MSI-X pciback issue
...rnel is the built-in mlx4_core/en/ib kernel modules which support SR-IOV added in versions 3.5 and above. The basic OFED drivers provided by Mellanox do not compile with a custom Dom0 kernel (even 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]...