From: Stephen Hemminger <stephen@networkplumber.org>
To: vikram T <vikramet@gmail.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] rte_eth_dev_count_avail() returns 0 with the MLX5 NIC card
Date: Thu, 17 Oct 2019 08:11:38 -0700 [thread overview]
Message-ID: <20191017081138.79f49809@hermes.lan> (raw)
In-Reply-To: <CANxYRjykCvDVPt=-Tn4mMH=2C9GsBSGzKP3-LZVHrpUBnxZ7Xg@mail.gmail.com>
On Thu, 17 Oct 2019 18:37:09 +0530
vikram T <vikramet@gmail.com> wrote:
> 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
Mellanox driver does not need or want to be bound to igb_uio.
It is a bifurcated driver.
prev parent reply other threads:[~2019-10-17 15:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 13:07 vikram T
2019-10-17 15:11 ` Stephen Hemminger [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191017081138.79f49809@hermes.lan \
--to=stephen@networkplumber.org \
--cc=dev@dpdk.org \
--cc=vikramet@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).