Hi Royce, On Mon, Jan 09, 2017 at 10:53:37PM +0800, Royce Niu wrote: > Dear all, > > I cannot use my Mellanox 3 Pro, after I binded it with igb_uio driver. > > It always shows when I use my DPDK application. > > EAL: Detected 32 lcore(s) > EAL: Probing VFIO support... > PMD: bnxt_rte_pmd_init() called for (null) > EAL: PCI device 0000:02:00.0 on NUMA socket 0 > EAL: probe driver: 8086:1521 rte_igb_pmd > EAL: PCI device 0000:02:00.1 on NUMA socket 0 > EAL: probe driver: 8086:1521 rte_igb_pmd > EAL: PCI device 0000:02:00.2 on NUMA socket 0 > EAL: probe driver: 8086:1521 rte_igb_pmd > EAL: PCI device 0000:02:00.3 on NUMA socket 0 > EAL: probe driver: 8086:1521 rte_igb_pmd > EAL: PCI device 0000:81:00.0 on NUMA socket 1 > EAL: probe driver: 15b3:1007 librte_pmd_mlx4 > PMD: librte_pmd_mlx4: cannot access device, is mlx4_ib loaded? > EAL: Error - exiting with code: 1 > Cause: Cannot create mbuf pool > > --------------- > I have added CONFIG_RTE_LIBRTE_MLX4_PMD=y in .config, and > install MLNX_OFED_LINUX-3.4-2.0.0.0.
The mlx4 PMD does not operate through igb_uio (see mlx4 documentation [1]), PCI devices must remain bound to their original kernel module (mlx4_core), however you have to additionally load mlx4_ib, mlx4_en and ib_uverbs [2]. [1] http://dpdk.org/doc/guides/nics/mlx4.html [2] http://dpdk.org/doc/guides/nics/mlx4.html#prerequisites -- Adrien Mazarguil 6WIND
