On Wed, 13 Nov 2024 15:06:17 -0500 CJ Sculti <c...@cj.gy> wrote: > I've been running my application for years on igb_uio with Intel NICs. I > recently replaced them with a Mellanox ConnectX-5 2x 40gbps NIC, updated > the DPDK version my application uses, and compiled with support for mlx5 > PMDs. Both 40Gbps ports are up with link, and both are in Ethernet mode, > not Infiniband mode. However, I'm getting complaints when I start my > application about trying to load 'mlx5_eth'? Both are bound to mlx5_core > driver at the moment. When I bind them to vfio-pci, or uio_pci_generic, my > application fails to recognize them at all as valid DPDK devices. Anyone > have any ideas? Also, strange that it only complains about one? I have them > configured in a bond on the kernel, as my application requires that. > > Network devices using kernel driver > > =================================== > > 0000:2b:00.0 'MT27800 Family [ConnectX-5] 1017' if=enp43s0f0np0 > drv=mlx5_core unused=vfio-pci > > 0000:2b:00.1 'MT27800 Family [ConnectX-5] 1017' if=enp43s0f1np1 > drv=mlx5_core unused=vfio-pci > > root@DDoSMitigation:~/anubis/engine/bin# ./anubis-engine > > > Electric Fence 2.2 Copyright (C) 1987-1999 Bruce Perens <br...@perens.com> > > EAL: Detected CPU lcores: 12 > > EAL: Detected NUMA nodes: 1 > > EAL: Detected static linkage of DPDK > > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > > EAL: Selected IOVA mode 'VA' > > EAL: VFIO support initialized > > EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:2b:00.0 (socket -1) > > EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:2b:00.1 (socket -1) > > mlx5_net: PF 0 doesn't have Verbs device matches PCI device 0000:2b:00.1, > are kernel drivers loaded? > > mlx5_common: Failed to load driver mlx5_eth > > EAL: Requested device 0000:2b:00.1 cannot be used > > TELEMETRY: No legacy callbacks, legacy socket not created > > USER1: Anubis build master/. > > USER1: We will run on 12 logical cores. > > USER1: Enabled lcores not a power of 2! > > This could have performance issues. > > KNI: WARNING: KNI is deprecated and will be removed in DPDK 23.11 > > USER1: Failed to reset link fe0.
MLX5 does not need or want vfio or igb_uio. https://doc.dpdk.org/guides/nics/mlx5.html
