I really dislike options that only works for specific cases ...
> On August 31, 2018 at 1:11 PM Alexandre Derumier <aderum...@odiso.com> wrote:
>
>
> This allow to setup mtu inside the guest,
> only working with virtio-net.
> ---
> PVE/QemuServer.pm | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
> index 015f8f7..9bfb4a1 100644
> --- a/PVE/QemuServer.pm
> +++ b/PVE/QemuServer.pm
> @@ -715,6 +715,12 @@ my $net_fmt = {
> description => "Rate limit in mbps (megabytes per second) as floating
> point
> number.",
> optional => 1,
> },
> + mtu => {
> + type => 'number',
> + minimum => 576, maximum=> 65536,
> + description => "MTU (virtio-net only)",
> + optional => 1,
> + },
> tag => {
> type => 'integer',
> minimum => 1, maximum => 4094,
> @@ -1839,6 +1845,7 @@ sub print_netdevice_full {
> $tmpstr .= ",vectors=$vectors,mq=on";
> }
> $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
> + $tmpstr .= ",host_mtu=$net->{mtu}" if $net->{mtu} && $device eq
> 'virtio-net-pci';
>
> if ($use_old_bios_files) {
> my $romfile;
> @@ -4619,6 +4626,7 @@ sub vmconfig_update_net {
> if (&$safe_string_ne($oldnet->{model}, $newnet->{model}) ||
> &$safe_string_ne($oldnet->{macaddr}, $newnet->{macaddr}) ||
> &$safe_num_ne($oldnet->{queues}, $newnet->{queues}) ||
> + &$safe_num_ne($oldnet->{mtu}, $newnet->{mtu}) ||
> !($newnet->{bridge} && $oldnet->{bridge})) { # bridge/nat mode
> change
>
> # for non online change, we try to hot-unplug
> --
> 2.11.0
>
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