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

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

[Balbeer Tiwari]

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

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

[Asaf Penso]

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@dpdk.org> On Behalf Of Balbeer Tiwari
>Sent: Tuesday, July 20, 2021 4:54 PM
>To: dev@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

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



The e-mail below is from an external source. Please do not open attachments or click links from an unknown or suspicious origin.



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

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

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

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

[Asaf Penso]

Can you tell what's the mbuf size? Max packet Len? MTU size?

Regards,
Asaf Penso
________________________________
From: Balbeer Tiwari <Balbeer.Tiwari@radisys.com>
Sent: Tuesday, July 20, 2021 6:17:50 PM
To: Asaf Penso <asafp@nvidia.com>; dev@dpdk.org <dev@dpdk.org>
Subject: RE: [dpdk-dev] DPDK Packet drop/Out of sequence issue with Jumbo frames on MLX ConnectX-4 Lx NIC


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



The e-mail below is from an external source. Please do not open attachments or click links from an unknown or suspicious origin.



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

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

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