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Bug 2217663

Summary:	[TestOnly] Support for xmit hash policy for ports in VFLAG mode in NFV deployment scenarios
Product:	Red Hat OpenStack	Reporter:	Gurpreet Singh <gurpsing>
Component:	rhosp-openvswitch	Assignee:	Miguel Angel Nieto <mnietoji>
Status:	CLOSED COMPLETED	QA Contact:	Sanjay Upadhyay <supadhya>
Severity:	high	Docs Contact:
Priority:	high
Version:	17.1 (Wallaby)	CC:	apevec, chrisw, ekuris, hakhande, jamsmith, mariel, mburns, mnietoji, pasik, rheslop, rjarry, supadhya
Target Milestone:	z4	Keywords:	FutureFeature, TechPreview, TestOnly, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	DFG:NFV
Fixed In Version:	kernel-5.14.0-283.el9	Doc Type:	Technology Preview
Doc Text:	In RHOSP 17.1, a technology preview is available for the VF-LAG transmit hash policy offload that enables load balancing at NIC hardware for offloaded traffic/flows. This hash policy is only available for layer3+4 base hashing. + To use the technology preview, verify that your templates include a bonding options parameter to enable the xmit hash policy as shown in the following example: + ---- bonding_options: "mode=802.3ad miimon=100 lacp_rate=fast xmit_hash_policy=layer3+4" ----	Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-12-15 10:36:17 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Gurpreet Singh 2023-06-26 22:05:47 UTC

Description of problem:

The VFLAG implementation used to implement LACP | mode=4 bond for the OVS Hardware Offload | Nvidia solution does not provide a way to select a specific xmit hash policy. The customer is Verizon and requires a way to implement a VFLAG with xmit hash policy layer3+4

The feature support was added in RHEL 8.6 and is available in RHEL 9.2 as well. 

This requirement is to validate/test the functionality in OSP for GA support. The feature is available as TP in OSP 17.1




This Jira is opened to build, and validate this feature end-to-end in RHOSP.

[1] : https://bugzilla.redhat.com/show_bug.cgi?id=2037510

[2]: https://bugzilla.redhat.com/show_bug.cgi?id=2049449


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Comment 22 Sanjay Upadhyay 2025-01-13 12:28:32 UTC

@gurpsing - we did test for regression and performance on 17.1.4 templates and we did not find any issue. 
Please note, we do not have a dedicated job for this. We had tested as a one of the thing. Given that this feature is supported by RHEL we should be good to go.

IF we need to add a new scenario to cover this test case, then we have yet to do that.
regards
/sanjay