Access to Hardware Devices

NVIDIA Docs Hub NVIDIA Networking Networking Software NVIDIA Firmware Tools (MFT) Documentation v4.26.1 LTS Access to Hardware Devices

The table below lists the NVIDIA^® devices supported by mstflint, the supporting tools, and the access methods to these devices.

Device Type	Product Name	HW Access Method
		PCI	I2C	In-Band
HCA (InfiniBand)	NVIDIA Connect-IB	V	V	V
IB/ETH Network Adapter	NVIDIA ConnectX-3 Pro	V	V	V
	NVIDIA ConnectX-4	V	V	V
	NVIDIA ConnectX-5	V	V	V
	NVIDIA ConnectX-5 Ex	V	V	V
	NVIDIA ConnectX-6	V	V	V
	NVIDIA ConnectX-6 Dx	V	V	V
	NVIDIA ConnectX-7	V	V	V
	NVIDIA BlueField-2	V	V	V
	NVIDIA BlueField-3	V	V	V
Ethernet Adapter (NIC)	NVIDIA ConnectX-4 Lx	V	V
	NVIDIA ConnectX-6 Dx	V	V
	NVIDIA ConnectX-6 Lx	V	V
	NVIDIA ConnectX-7	V	V
	NVIDIA BlueField-2	V	V
Switch	NVIDIA Switch-IB^®	V¹	V	V
	NVIDIA Switch-IB 2	V¹	V	V
	NVIDIA Spectrum™	V	V
	NVIDIA Spectrum-2	V	V
	NVIDIA Spectrum-3	V	V
	NVIDIA Quantum	V	V	V

Note. V¹indicates managed switch products only.V² In-band capability is only available for mstflint if mstflint is compiled with MLNX_OFED driver. mstflint tools access NVIDIA devices via the PCI Express interface, via a USB to I2C adapter (P/N: MTUSB-1), or via vendor-specific MADs over the InfiniBand fabric (In-Band).

Warning

In-Band device access requires the local IB port to be in the ACTIVE state and connected to an IB fabric.

All mstflint tools address the target hardware device using a PCI device. To list all available PCI devices, use the “lspci” command.
To see the NVIDIA PCI devices, run “lspci | grep –I “Mellanox””.
Ex:

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            # lspci | grep -i "Mellanox"
15:00.0 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
1a:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
1a:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]

Local PCI devices may also be accessed using device aliases. Supported aliases are:

PCI device “bus:dev.fn” (e.g. 03:00.0 (BDF format))
OFED RDMA device (e.g. mlx4_0)
Network interface with “net-” prefix, (e.g. net-eth2”)