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Setting SR-IOV num_vfs for ConnectX-2 card

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Hi,

I need to enable 4 VFs for a CX-2 card on a Power8 server

 

Following are the model details of my card (obtained via flint -d /dev/mst/mt26448_pci_cr0 q)

 

Device ID:       26448

PSID:            IBM0F30001010

FW Version:      2.9.1326

 

lspci | grep Mellanox

0000:01:00.0 Ethernet controller: Mellanox Technologies MT26448 [ConnectX EN 10GigE, PCIe 2.0 5GT/s] (rev b0)

 

I could not find instructions to enable VFs for CX-2 cards (CX-3 and CX-4 have instructions).

 

I checked a few things to try and enable SR-IOV

          flint -d /dev/mst/mt26448_pci_cr0 dc

          >> [HCA] section does not have entries for SR-IOV or num_vfs

  • Tried enabling it using MST mlxconfig

[root@pts00451 ~]# mlxconfig -d /dev/mst/mt26448_pci_cr0 q

Device #1:

----------

Device type:    ConnectX2

PCI device:     /dev/mst/mt26448_pci_cr0

-E- Failed to query device: /dev/mst/mt26448_pci_cr0. Device not supported.

          It seems the MST version does not support CX-2 (I tried using older versions of MST with no luck)

  • Looked to see if could install modified firmware (set num_vfs etc. in INI file)

        Could not find a .tgz firmware image file for this IBM OEM card, firmware image here is a .bin file: http://www.mellanox.com/page/firmware_table_IBM_SystemP

 

Needed some help or instructions/pointers to enable VFs for my card

 

Thanks in advance!

Vaibhav


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