For the BF3 sku 900-9D3B6-00CV-AA0, how to see the BF3 connectx7 ethernet ports from the host

Infrastructure & Networking BlueField
1

Trying to run pktgen from host to bf3 to get its transmit receive throughput data using ovr offload.
Currently lspci | grep Mellanox does not show any Ethernet controller for the BF3.

I only see the Ethernet controller for BF2 but none for BF3, so cannot use pktgen from host to send/receive to the BF3.
lspci | grep Mellanox
03:00.0 DMA controller: Mellanox Technologies MT43244 BlueField-3 SoC Management Interface (rev 01)
04:00.0 Ethernet controller: Mellanox Technologies MT42822 BlueField-2 integrated ConnectX-6 Dx network controller (rev 01)
04:00.1 Ethernet controller: Mellanox Technologies MT42822 BlueField-2 integrated ConnectX-6 Dx network controller (rev 01)
04:00.2 DMA controller: Mellanox Technologies MT42822 BlueField-2 SoC Management Interface (rev 01)
linux-sysinfo-snapshot-3.7.6.tar.gz (56.1 KB)

2

It turned out the “mlxconfig query” shows NUM_OF_PF = 0. This needs to be changed to 2 so that the connectx7 ports will be visible to the host. It seems strange that fresh install of doca 2.2 using sdkmanager has NUM_OF_PF = 0. This would require user to change this manually if need to see the connectx7 from the host cpu. Attaching the mlxconfig_query from the bf3 for review, in case there are other settings that we should change.
mlxconfig_query_bf3.txt (31.1 KB)

3

Many thx to email correspondance, the way to reset the mlxconfig "issueing ‘mlxconfig -d /dev/mst/mt… r’ works and restores the NUM_OF_PF = 2, which allows the host to see the connectx7. Issue is resolved.