some followup ... I debugged more, it looks like rte_pci_probe is not happening, so the rte_eth_dev_allocate is not called at all ..., buy why is that? I ran testpmd, it shows no probed ethernet device.
# /opt/bluecoat/sslv/bin/testpmd testpmd -n 2 -l 2-3 -w 0000:00:04.0 -m 256 -- -i EAL: Detected 48 lcore(s) EAL: Multi-process socket /var/run/.rte_unix EAL: Probing VFIO support... testpmd: No probed ethernet devices Interactive-mode selected ... Any help is greatly appreciated On Thu, Jun 6, 2019 at 2:26 PM Reeve Yang <reeve.y...@gmail.com> wrote: > > Hi Gurus, > > I'm trying to bring VM under Amzaon EC2 R4.16xlarge instance, so the > ethernet device is uising Amazon ENA driver. The kernel is 3.10, dpdk > is 18.02. All ether device are bound successfully, but for some > reason, the DPDK data path cannot be initialized because > rte_eth_dev_count() always returns zero. Can someone shed some lights? > Thanks. > > I'm pretty sure the VM instance is set up correctly in terms ENA enabled. > > Below are some details: > # modinfo ena > filename: > /lib/modules/3.10.0-693.11.6.el7.228052.x86_64/kernel/drivers/net/ethernet/amazon/ena/ena.ko.xz > version: 1.0.2 > license: GPL > description: Elastic Network Adapter (ENA) > author: Amazon.com, Inc. or its affiliates > rhelversion: 7.4 > > # lspci -vt > -[0000:00]-+-00.0 Intel Corporation 440FX - 82441FX PMC [Natoma] > +-01.0 Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] > +-01.1 Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] > +-01.3 Intel Corporation 82371AB/EB/MB PIIX4 ACPI > +-02.0 Cirrus Logic GD 5446 > +-03.0 Device 1d0f:ec20 > +-04.0 Device 1d0f:ec20 > +-05.0 Device 1d0f:ec20 > +-06.0 Device 1d0f:ec20 > +-07.0 Device 1d0f:ec20 > +-08.0 Device 1d0f:ec20 > +-09.0 Device 1d0f:ec20 > +-0a.0 Device 1d0f:ec20 > +-0b.0 Device 1d0f:ec20 > \-1f.0 XenSource, Inc. Xen Platform Device > # dpdk-devbind.py -s > > Network devices using DPDK-compatible driver > ============================================ > 0000:00:04.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:05.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:06.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:07.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:08.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:09.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:0a.0 'Device ec20' drv=igb_uio unused=ena > 0000:00:0b.0 'Device ec20' drv=igb_uio unused=ena > > Network devices using kernel driver > =================================== > 0000:00:03.0 'Device ec20' if=nic0_0 drv=ena unused=igb_uio *Active*
