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Fix ssvm migrate storage network - #13379

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fix-ssvm-migrate-stgNet
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Fix ssvm migrate storage network#13379
Pearl1594 wants to merge 1 commit into
4.20from
fix-ssvm-migrate-stgNet

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Description

This PR fixes: #13378

Types of changes

  • Breaking change (fix or feature that would cause existing functionality to change)
  • New feature (non-breaking change which adds functionality)
  • Bug fix (non-breaking change which fixes an issue)
  • Enhancement (improves an existing feature and functionality)
  • Cleanup (Code refactoring and cleanup, that may add test cases)
  • Build/CI
  • Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Bug Severity

  • BLOCKER
  • Critical
  • Major
  • Minor
  • Trivial

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How did you try to break this feature and the system with this change?

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codecovBot commented Jun 8, 2026

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Codecov Report

❌ Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 16.27%. Comparing base (549daae) to head (edbda62).

Files with missing linesPatch %Lines
...cloud/hypervisor/kvm/resource/BridgeVifDriver.java20.00%2 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## 4.20 #13379 +/- ##
=========================================
Coverage 16.26% 16.27% - Complexity 13434 13436 +2 
=========================================
Files 5667 5667 Lines 500731 500735 +4 Branches 60803 60806 +3 =========================================
+ Hits 81455 81474 +19 + Misses 410172 410154 -18 - Partials 9104 9107 +3 
FlagCoverage Δ
uitests4.14% <ø> (ø)
unittests17.12% <20.00%> (+<0.01%)⬆️

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Pull request overview

This PR targets KVM SSVM live migration failures when the storage network uses a dedicated VLAN by ensuring the destination host creates the storage VLAN bridge during migration/network preparation, even when the NIC’s broadcastType is not Storage but the broadcastUri scheme indicates storage.

Changes:

  • Update BridgeVifDriver#createStorageVnetBridgeIfNeeded to detect storage networks via broadcastUri scheme (storage://...) in addition to broadcastType == Storage.
  • Avoid the previous early-return behavior that skipped bridge creation when broadcastType wasn’t Storage.

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Comment on lines +189 to +197
if (nic.getBroadcastUri() == null) {
return storageBrName;
}

boolean isStorageBroadcast = Networks.BroadcastDomainType.Storage.equals(nic.getBroadcastType()) ||
Networks.BroadcastDomainType.Storage.equals(Networks.BroadcastDomainType.getSchemeValue(nic.getBroadcastUri()));
if (!isStorageBroadcast) {
return storageBrName;
}

@shwstpprshwstppr left a comment

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Code lgtm

@weizhouapache

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@Pearl1594
is it ready for review and testing ?

Comment on lines +189 to +197
if (nic.getBroadcastUri() == null) {
return storageBrName;
}

boolean isStorageBroadcast = Networks.BroadcastDomainType.Storage.equals(nic.getBroadcastType()) ||
Networks.BroadcastDomainType.Storage.equals(Networks.BroadcastDomainType.getSchemeValue(nic.getBroadcastUri()));
if (!isStorageBroadcast) {
return storageBrName;
}

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both branches

 return storageBrName;

This is a bit confusing. Can you unify them @Pearl1594 ?

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both branches

 return storageBrName;

This is a bit confusing. Can you unify them @Pearl1594 ?

ping @Pearl1594

@DaanHooglandDaanHoogland changed the title Fix ssvm migrate stg netFix ssvm migrate storage networkAug 4, 2026
@DaanHoogland
DaanHooglandforce-pushed the fix-ssvm-migrate-stgNet branch from 7b680cf to edbda62CompareAugust 4, 2026 08:06
@sonarqubecloud

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@DaanHoogland

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@Pearl1594 is it ready for review and testing ?

ping

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KVM: Live migration of SSVM fails with dedicated VLAN

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@Pearl1594@weizhouapache@DaanHoogland@shwstppr@harikrishna-patnala