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charset="us-ascii" Content-Transfer-Encoding: quoted-printable I'm adding some additional details to provide more context. I'm encounterin= g this issue on Azure/Hyper-V platform with the existing DPDK-22.11.1 tap_b= pf_insns.h byte-code. Regards, Anudattu. From: Kouilakonda Anudattu Sent: Monday, October 9, 2023 9:48 AM To: users@dpdk.org Subject: [External] : net/tap: eBPF failed to load BPF section and failed t= o create flows for TAP device Hi All, With the latest Oracle EL9 with DPDK 22.11.1 version, I modified the RSS eB= PF C program and generated the structure of a C array in the 'tap_bpf_insns= .h' file. This array is in eBPF bytecode instructions format. However, even with new = bytecode eBPF failed to load TAP PMD with the following error: rss_add_actions(): Failed to load BPF section 'l3_l4' (7): Argument list to= o long. net_failsafe: Failed to create a flow on sub_device 1." Currently we are using below kernel: 5.15.0 #9 SMP PREEMPT x86_64 GNU/Linux How to resolve these errors ? Regards, Anudattu --_000_CY4PR1001MB2056E873FC1C2D30FB7F3147FDCEACY4PR1001MB2056_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I'm adding some additional details to provide more context. I'm encounterin= g this issue on Azure/Hyper-V platform with the existing DPDK-22.11.1 tap_b= pf_insns.h byte-code.

 

 

Regards,

Anudattu.

 

From: Kouilakonda Anudattu <kouilakonda.an= udattu@oracle.com>
Sent: Monday, October 9, 2023 9:48 AM
To: users@dpdk.org
Subject: [External] : net/tap: eBPF failed to load BPF section and f= ailed to create flows for TAP device

 

Hi All,

 

 

With the latest Oracle EL9 with DPDK 22.11.1 version= , I modified the RSS eBPF C program and generated the structure of a C arra= y in the 'tap_bpf_insns.h' file.

This array is in eBPF bytecode instructions format. = However, even with new bytecode eBPF failed to load TAP PMD with the follow= ing error:

 

rss_add_actions(): Failed to load BPF section 'l3= _l4' (7): Argument list too long.

net_failsafe: Failed to create a flow on sub_device = 1."

 

Currently we are using below kernel:

5.15.0 #9 SMP PREEMPT

x86_64 GNU/Linux

 

How to resolve these errors ?

 

Regards,

Anudattu

 

 

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