Re: skeleton code failing

[Lokesh Chakka <lvenkatakumarchakka@gmail.com>]

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Dear David,

=================================================
$ lspci | grep -i broadcom
83:00.0 Ethernet controller: Broadcom Inc. and subsidiaries BCM57508
NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb/200Gb Ethernet (rev 11)
83:00.1 Ethernet controller: Broadcom Inc. and subsidiaries BCM57508
NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb/200Gb Ethernet (rev 11)
$ lspci -n -s 83:00.0
83:00.0 0200: 14e4:1750 (rev 11)
=================================================

I am compiling my code like this :
=================================================
gcc main.c `pkg-config --cflags libdpdk --libs libdpdk`
=================================================

Hence it is statically linked code.
If I try
$ dpdk-pmdinfo.py ./a.out

But I am not seeing any output



Thanks & Regards
--
Lokesh Chakka.


On Wed, Jul 13, 2022 at 12:22 PM David Marchand <david.marchand@redhat.com>
wrote:

> On Wed, Jul 13, 2022 at 7:35 AM Lokesh Chakka
> <lvenkatakumarchakka@gmail.com> wrote:
> > Would like to understand if I am missing something. I am new to this
> platform.
> > rte_eth_dev_count_avail is returning zero.
> > OS is Ubuntu 22.04. DPDK is latest version.
> > Cards are being detected by Linux. Ifconfig is showing the cards up. LED
> is also glowing.
>
> Indeed, DPDK provides a userspace driver for some NetXtreme nics
> (which is net/bnxt).
> This userspace driver does not rely on the bnxt Linux kernel driver.
> IOW, this card being detecting and working with the Linux kernel does
> not automatically mean that this nic can work with DPDK.
>
> We need more info on your nic, first.
>
> Can you share the pci id of this nic (like running lspci -n -s
> $pci_address)?
> It should be a 14e4:XXXX.
>
> Then you can check this XXXX against what your dpdk application supports.
>
> If it is a statically linked application, you can run:
> $ dpdk-pmdinfo.py /path/to/your/application
>
> Else, if your application is dynamically linked against DPDK driver,
> you can run this command against the net/bnxt driver .so.22 (for 21.11
> and later releases):
> $ dpdk-pmdinfo.py /path/to/your/dpdk/drivers/librte_net_bnxt.so.22
>
> You should get a list of supported NetXtreme nics, like:
>
> [snipped some other drivers compiled in my application]
> PMD NAME: net_bnxt
> PMD HW SUPPORT:
>  Broadcom Inc. and subsidiaries (14e4) : BCM5745X NetXtreme-E RDMA
> Virtual Function (1606) (All Subdevices)
>  Broadcom Inc. and subsidiaries (14e4) : BCM5745X NetXtreme-E Ethernet
> Virtual Function (1609) (All Subdevices)
>  Broadcom Inc. and subsidiaries (14e4) : BCM57454 NetXtreme-E
> 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet (1614) (All Subdevices)
>  Broadcom Inc. and subsidiaries (14e4) : NetXtreme-E RDMA Virtual
> Function (16c1) (All Subdevices)
>  Broadcom Inc. and subsidiaries (14e4) : NetXtreme-C Ethernet Virtual
> Function (16cb) (All Subdevices)
> [snipped the rest]
>
> I hope you can find a (XXXX) corresponding to your NIC.
>
>
> --
> David Marchand
>
>

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