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NEWS: Document recent VLAN ID improvement

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After previous commits, the set of NICs that work well with
Libvirt was extended. Document this change.

Signed-off-by: Dmitrii Shcherbakov <dmitrii.shcherbakov@canonical.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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Dmitrii Shcherbakov 2022-02-02 18:39:23 +01:00 committed by Michal Privoznik
parent 09cdd16a9b
commit bf36dcb2a6
1 changed files with 14 additions and 0 deletions
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NEWS.rst
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@ -34,6 +34,20 @@ v8.1.0 (unreleased)
to parse sysconfig files, in case they are created by the admin and filled
with the desired key=value pairs.
* virnetdev: Ignore EPERM on implicit clearing of VF VLAN ID
Libvirt will now ignore EPERM errors on attempts to implicitly clear a
VLAN ID (when a VLAN is not explicitly provided via an interface XML
using a 0 or a non-zero value) as SmartNIC DPUs do not expose VLAN
programming capabilities to the hypervisor host. This allows Libvirt
clients to avoid specifying a VLAN and expect VF configuration to work
since Libvirt tries to clear a VLAN in the same operation
as setting a MAC address for VIR_DOMAIN_NET_TYPE_HOSTDEV devices which
is now split into two distinct operations. EPERM errors received while
trying to program a non-zero VLAN ID or explicitly program a VLAN ID 0
will still cause errors as before so there is no change in behavior
in those cases.
* **Bug fixes**