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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 to parse sysconfig files, in case they are created by the admin and filled
with the desired key=value pairs. 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** * **Bug fixes**