root@pve3:~# lspci -s 04:00.0 -v
04:00.0 Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3]
Subsystem: Mellanox Technologies MT27500 Family [ConnectX-3]
Flags: bus master, fast devsel, latency 0, IRQ 46, NUMA node 0
Memory at daf00000 (64-bit, non-prefetchable) [size=1M]
Memory at d5000000 (64-bit, prefetchable) [size=8M]
Expansion ROM at da000000 [disabled] [size=1M]
Capabilities: [40] Power Management version 3
Capabilities: [48] Vital Product Data
Capabilities: [9c] MSI-X: Enable+ Count=128 Masked-
Capabilities: [60] Express Endpoint, MSI 00
Capabilities: [c0] Vendor Specific Information: Len=18 <?>
Capabilities: [100] Alternative Routing-ID Interpretation (ARI)
Capabilities: [148] Device Serial Number 6c-b3-11-03-00-4d-14-9c
Capabilities: [154] Advanced Error Reporting
Capabilities: [18c] #19
Kernel driver in use: mlx4_core
Kernel modules: mlx4_core