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docs: Document yet another limitation of tx_queue_size

https://bugzilla.redhat.com/show_bug.cgi?id=1484234

Turns out, only vhostuser type of interfaces are supported
currently.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2017-08-29 17:01:16 +02:00
parent e4cb850081
commit b39464ba26

View File

@ -5213,7 +5213,10 @@ qemu-kvm -net nic,model=? /dev/null
The default value is hypervisor dependent and may change
across its releases. Moreover, some hypervisors may pose
some restrictions on actual value. For instance, QEMU
v2.9 requires value to be a power of two from [256, 1024] range.
v2.9 requires value to be a power of two from [256, 1024]
range. In addition to that, this may work only for a subset of
interface types, e.g. aforementioned QEMU enables this option
only for <code>vhostuser</code> type.
<span class="since">Since 3.7.0 (QEMU and KVM only)</span><br/><br/>
<b>In general you should leave this option alone, unless you