Hi,
I am facing an issue with rte_eth_dev_count_avail() returns 0 on the MLX5
NIC card.
"dpdk-devbind.py -s" says that the interface is bound to mlx5_core. ( Need
not be bounded to igb_uio)
*# /var/cache/ocsm/dpdk/dpdk-18.11/usertools/dpdk-devbind.py -s*
Network devices using kernel driver
===================================
0000:02:00.0 'NetXtreme BCM5720 Gigabit Ethernet PCIe 165f' if=em1 drv=tg3
unused=igb_uio *Active*
0000:02:00.1 'NetXtreme BCM5720 Gigabit Ethernet PCIe 165f' if=em2 drv=tg3
unused=igb_uio
0000:08:00.0 'MT27700 Family [ConnectX-4] 1013' if=p2p1 drv=mlx5_core
unused=igb_uio
0000:08:00.1 'MT27700 Family [ConnectX-4] 1013' if=p2p2 drv=mlx5_core
unused=igb_uio
0000:41:00.0 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=p1p1
drv=i40e unused=igb_uio
0000:41:00.1 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=p1p2
drv=i40e unused=igb_uio
No 'Crypto' devices detected
============================
No 'Eventdev' devices detected
==============================
No 'Mempool' devices detected
=============================
No 'Compress' devices detected
==============================
*# ibv_devinfo*
hca_id: mlx5_0
transport: InfiniBand (0)
fw_ver: 12.25.1020
node_guid: 506b:4b03:00db:fe0a
sys_image_guid: 506b:4b03:00db:fe0a
vendor_id: 0x02c9
vendor_part_id: 4115
hw_ver: 0x0
board_id: MT_2150110033
phys_port_cnt: 1
port: 1
state: PORT_ACTIVE (4)
max_mtu: 4096 (5)
active_mtu: 1024 (3)
sm_lid: 0
port_lid: 0
port_lmc: 0x00
link_layer: Ethernet
hca_id: mlx5_1
transport: InfiniBand (0)
fw_ver: 12.25.1020
node_guid: 506b:4b03:00db:fe0b
sys_image_guid: 506b:4b03:00db:fe0a
vendor_id: 0x02c9
vendor_part_id: 4115
hw_ver: 0x0
board_id: MT_2150110033
phys_port_cnt: 1
port: 1
state: PORT_DOWN (1)
max_mtu: 4096 (5)
active_mtu: 1024 (3)
sm_lid: 0
port_lid: 0
port_lmc: 0x00
link_layer: Ethernet
# *mst start*
Starting MST (Mellanox Software Tools) driver set
Loading MST PCI module - Success
Loading MST PCI configuration module - Success
Create devices
-W- Missing "lsusb" command, skipping MTUSB devices detection
Unloading MST PCI module (unused) - Success
*# mst status*
MST modules:
------------
MST PCI module is not loaded
MST PCI configuration module loaded
MST devices:
------------
/dev/mst/mt4115_pciconf0 - PCI configuration cycles access.
domain:bus:dev.fn=0000:08:00.0
addr.reg=88 data.reg=92 cr_bar.gw_offset=-1
Chip revision is: 00
* # ls -d /sys/class/net/*/device/infiniband_verbs/uverbs* | cut -d / -f 5*
p2p1
p2p2
However testpmd works fine here;
*# ./testpmd -l 8-15 -n 4 -w 08:00.0 -w 08:00.1 -- --rxq=2 --txq=2 -i*
EAL: Detected 32 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:08:00.0 on NUMA socket 0
EAL: probe driver: 15b3:1013 net_mlx5
EAL: PCI device 0000:08:00.1 on NUMA socket 0
EAL: probe driver: 15b3:1013 net_mlx5
Interactive-mode selected
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=203456, size=2176,
socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
testpmd: create a new mbuf pool <mbuf_pool_socket_1>: n=203456, size=2176,
socket=1
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
Port 0: 50:6B:4B:DB:FE:0A
Configuring Port 1 (socket 0)
Port 1: 50:6B:4B:DB:FE:0B
Checking link statuses...
Done
testpmd> Killed
Is anything missing here for API rte_eth_dev_count_avail() not working
here. Guidance to resolve from this blocking issue is much appreciated.
Let me know if any other input/info is required.
Thanks in advance
Regards
Vikram
