Re: Unable to initialize ConnectX-4 ports in DPDK 24.11 and 25.03

[Charles Oluwaseun Oluboyo <charlesboyo@gmail.com>]

Hello Dariusz and all,

>
> One of the patches merged to 24.11 introduced an issue with queues
> descriptor limits on older NICs.
>
> A patch with a fix for that is pending for merge to 25.07.
>
> Would you be able apply the following patches and test on your side?
>
> - https://patches.dpdk.org/project/dpdk/patch/20250424133128.133900-1-viacheslavo@nvidia.com/
> - https://patches.dpdk.org/project/dpdk/patch/20250514075530.419423-1-viacheslavo@nvidia.com/
>

I applied these patches, and they have fixed the issue with the
descriptors. There are now 32768 per queue.
I have tested with testpmd, and the ports work. However, I am unable
to initialize the ports with pktgen.

Initialize Port 2 ...
   Max MTU: 65535
   Enabling Tx TCP_CKSUM offload
   Enabling Tx UDP_CKSUM offload
   Enabling Tx IPV4_CKSUM offload
   Allocate packet sequence array
   Setup latency defaults
   Setup fill pattern defaults
   Configure device
ETHDEV: Frame size (65553) > device max frame size (65536) for port_id 2
!PANIC!: Cannot configure device: port=2, Num queues 1,1.
EAL: PANIC in initialize_port_info():
Cannot configure device: port=2, Num queues 1,1.
0: /usr/local/lib/x86_64-linux-gnu/librte_eal.so.25
(rte_dump_stack+0x42) [7f16cb3de6d2]
1: /usr/local/lib/x86_64-linux-gnu/librte_eal.so.25 (__rte_panic+0xd4)
[7f16cb3b737f]
2: ./usr/local/bin/pktgen (5606908ff000+0xd26e) [56069090c26e]
3: ./usr/local/bin/pktgen (5606908ff000+0x2c61e) [56069092b61e]
4: ./usr/local/bin/pktgen (5606908ff000+0xe339) [56069090d339]
5: /lib/x86_64-linux-gnu/libc.so.6 (7f16cafc2000+0x29d90) [7f16cafebd90]
6: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x80) [7f16cafebe40]
7: ./usr/local/bin/pktgen (5606908ff000+0xecc5) [56069090dcc5]

65553 looks very unusual, doesn't it? Do you have any suggestions as
to what to do next?

Regards,

Oluwaseun