[dpdk-dev] DPDK Packet drop/Out of sequence issue with Jumbo frames on MLX ConnectX-4 Lx NIC

[Balbeer Tiwari]

Hi Asaf,



Please see details, let me know if more details required.

What DPDK version do you use?

DPDK-20.05

What EAL and devargs value are being used?

Following are the argv at eal_init

1005              if (rte_eal_init(argc, argv) < 0)

(gdb) p argv

$7 = {0x72bce60 "fast_pkt_app", 0x72bce90 "-c 6c", 0x72bcec0 "-m 1024", 0x72bcef0 "-n 1", 0x72bcf20 "--file-prefix=gnb_du_rte_config", 0x72bcf50 "--proc-type=auto", 0x72bcf80 "-w0000:c1:00.0",

  0x72bcfb0 "-w0000:c1:00.1", 0x72bcfe0 "", 0x72bd010 ""}

(gdb)



Regards,

Balbeer



-----Original Message-----
From: Asaf Penso <asafp at nvidia.com>
Sent: Tuesday, July 20, 2021 8:03 PM
To: Balbeer Tiwari <Balbeer.Tiwari at radisys.com>; dev at dpdk.org
Subject: RE: [dpdk-dev] DPDK Packet drop/Out of sequence issue with Jumbo frames on MLX ConnectX-4 Lx NIC



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Hello Balbeer,



Can you please provide more details?

What DPDK version do you use?

What EAL and devargs value are being used?



Regards,

Asaf Penso



>-----Original Message-----

>From: dev <dev-bounces at dpdk.org<mailto:dev-bounces at dpdk.org>> On Behalf Of Balbeer Tiwari

>Sent: Tuesday, July 20, 2021 4:54 PM

>To: dev at dpdk.org<mailto:dev at dpdk.org>

>Subject: [dpdk-dev] DPDK Packet drop/Out of sequence issue with Jumbo

>frames on MLX ConnectX-4 Lx NIC

>

>Hi There,

>

>I am using MLX ConnectX-4 Lx with DPDK and with this I am observing

>packet drops at receiver if size greater than ~8k(jumbo) frames.

>Smaller packets go through fine. Its being run directly on baremetal

>with Centos 8.3.  Please can you share if there is any fix for this.

>

>Regards,

>Balbeer