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Bug 1880264 - [nfp] xdp-filter hardware offload mode error: libxdp: Error attaching XDP program to ifindex 10: Invalid argument
Summary: [nfp] xdp-filter hardware offload mode error: libxdp: Error attaching XDP pro...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: xdp-tools
Version: 8.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.4
Assignee: Toke Høiland-Jørgensen
QA Contact: Zhiqian Guan
URL:
Whiteboard:
Depends On:
Blocks: 1680409
TreeView+ depends on / blocked
 
Reported: 2020-09-18 06:53 UTC by Zhiqian Guan
Modified: 2021-05-18 16:10 UTC (History)
4 users (show)

Fixed In Version: xdp-tools-1.1.0-1.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-05-18 16:09:59 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
nfp hw mode debug infor (141.83 KB, text/plain)
2020-09-18 06:53 UTC, Zhiqian Guan 		no flags Details
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2021:1925 0 None None None 2021-05-18 16:10:07 UTC

Description Zhiqian Guan 2020-09-18 06:53:16 UTC 
Created attachment 1715302 [details]
nfp hw mode debug infor

Description of problem:

it doesn't work when using xdp-filter -m hw on nfp card, error: 

libxdp: Error attaching XDP program to ifindex 10: Invalid argument
Couldn't attach XDP program on iface 'ens3np0': Invalid argument(-22)


Reproduce log:

[root@netqe30 xdp_tools]# ethtool -i ens3np0
driver: nfp
version: 4.18.0-234.el8.x86_64 SMP mod_u
firmware-version: 0.0.3.5 0.22 bpf-2.0.6.124 ebpf
expansion-rom-version:
bus-info: 0000:5e:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
[root@netqe30 xdp_tools]# xdp-filter load -m hw ens3np0
libxdp: Error attaching XDP program to ifindex 10: Invalid argument
Couldn't attach XDP program on iface 'ens3np0': Invalid argument(-22)
[root@netqe30 xdp_tools]# xdp-loader load -m hw ens3np0 xdp_prog_kern.o
libxdp: Error attaching XDP program to ifindex 10: Invalid argument
Couldn't attach XDP program on iface 'ens3np0': Invalid argument(-22)
[root@netqe30 xdp_tools]# rpm -qa | grep xdp-tools
xdp-tools-1.0.1-1.el8.x86_64
[root@netqe30 xdp_tools]# uname -r
4.18.0-234.el8.x86_64
[root@netqe30 xdp_tools]#


-vv logging is also attached.


Actual results:
xdp-filter load failed

Expected results:
xdp-filter successfully load in hw mode.
Comment 1 Zhiqian Guan 2020-09-18 07:01:14 UTC 
file this bug for tracking the unresolved known issue of current xdp-tools version, details please see https://bugzilla.redhat.com/show_bug.cgi?id=1820670, Comment96, Comment97
Comment 2 Toke Høiland-Jørgensen 2020-09-18 10:29:00 UTC 
I'm not quite sure if this is due to a fundamental limitation in the offload support, but in that case we can at least error out with a nicer message...
Comment 4 Zhiqian Guan 2020-10-19 07:33:04 UTC 
Hi Toke,

Any plan for when will this bug be fixed? I'm planning setting the ITR to 8.4.0, and also need to set the ITM field.
Comment 5 Toke Høiland-Jørgensen 2020-10-23 08:57:01 UTC 
As for the other xdp-tools bug, let's do this after the 5.10 backports land (clearing needinfo)...
Comment 6 Toke Høiland-Jørgensen 2021-01-04 21:04:15 UTC 
Scratch build what should fix this available here: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=34045153

Will turn it into a proper build as soon as I figure out how to get a new branch created in dist-git...
Comment 11 Zhiqian Guan 2021-01-28 07:28:02 UTC 
The logging looks nicer since the xdp-filter doesn't support offloading now.

[root@netqe30 ~]# rpm -q xdp-tools
xdp-tools-1.1.0-1.el8.x86_64
[root@netqe30 ~]# rpm -q libxdp
libxdp-1.1.0-1.el8.x86_64
[root@netqe30 ~]# ethtool -i ens3np0
driver: nfp
version: 4.18.0-277.el8.x86_64
firmware-version: 0.0.3.5 0.22 bpf-2.0.6.124 ebpf
expansion-rom-version:
bus-info: 0000:5e:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
[root@netqe30 ~]# xdp-filter load -m hw ens3np0
xdp-filter does not support offloading.
[root@netqe30 ~]#
Comment 12 Zhiqian Guan 2021-01-28 07:32:24 UTC 
base on comment11 set this to Verified
Comment 14 errata-xmlrpc 2021-05-18 16:09:59 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (xdp-tools bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2021:1925
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