Re: [pve-devel] [PATCH v4 manager] ui: vm network: allow to override MTU for virtio devices

[Dominik Csapak <d.csapak@proxmox.com>]

ok so i noticed the following:

when i have a virtio-nic with no mtu set, we populate the field with
'1500' (even when we don't show the advanced fields) and pressing
ok, changes the mtu (to 1500)

what is the default for that value? none?
in any case, the default should be the emptyText, and we
should not set the field to a value when it's not set
in the config

i guess this would work if you set the 'mtu' to undefined/null/empty string in
the viewmodel, and set the emptyText appropriately

otherwise LGTM

On 5/16/22 11:37, Oguz Bektas wrote:
> we already have the 'mtu' option in the API, so we can just expose
> that option inside the 'Advanced' menu for virtio network interfaces.
> 
> Reviewed-By: Aaron Lauterer <a.lauterer@proxmox.com>
> Tested-By: Aaron Lauterer <a.lauterer@proxmox.com>
> Tested-By: Dylan Whyte <d.whyte@proxmox.com>
> Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
> ---
> 
> v3->v4:
> * show tooltip message about inheritance if mtu is 1
> 
> 
>   www/manager6/qemu/NetworkEdit.js | 34 ++++++++++++++++++++++++++++++++
>   1 file changed, 34 insertions(+)
> 
> diff --git a/www/manager6/qemu/NetworkEdit.js b/www/manager6/qemu/NetworkEdit.js
> index b39cffdc..6e56b73d 100644
> --- a/www/manager6/qemu/NetworkEdit.js
> +++ b/www/manager6/qemu/NetworkEdit.js
> @@ -19,6 +19,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
>   	me.network.macaddr = values.macaddr;
>   	me.network.disconnect = values.disconnect;
>   	me.network.queues = values.queues;
> +	me.network.mtu = values.mtu;
>   
>   	if (values.rate) {
>   	    me.network.rate = values.rate;
> @@ -33,6 +34,17 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
>   	return params;
>       },
>   
> +    viewModel: {
> +	data: {
> +	    network_model: '',
> +	    mtu: 1500,
> +	},
> +	formulas: {
> +	    isVirtio: (get) => get('network_model') === 'virtio',
> +	    showMTUHint: (get) => get('mtu') === 1,
> +	},
> +    },
> +
>       setNetwork: function(confid, data) {
>   	var me = this;
>   
> @@ -112,6 +124,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
>   			    'macaddr',
>   			    'rate',
>   			    'queues',
> +			    'mtu',
>   			];
>   			fields.forEach(function(fieldname) {
>   			    me.down('field[name='+fieldname+']').setDisabled(value);
> @@ -130,6 +143,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
>   		xtype: 'pveNetworkCardSelector',
>   		name: 'model',
>   		fieldLabel: gettext('Model'),
> +		bind: '{network_model}',
>   		value: PVE.qemu.OSDefaults.generic.networkCard,
>   		allowBlank: false,
>   	    },
> @@ -161,6 +175,26 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
>   		value: '',
>   		allowBlank: true,
>   	    },
> +	    {
> +		xtype: 'proxmoxintegerfield',
> +		name: 'mtu',
> +		fieldLabel: 'MTU',
> +		bind: {
> +		    disabled: '{!isVirtio}',
> +		    value: '{mtu}',
> +		},
> +		minValue: 1,
> +		maxValue: 65520,
> +		allowBlank: true,
> +	    },
> +	    {
> +		xtype: 'displayfield',
> +		userCls: 'pmx-hint',
> +		value: gettext("mtu=1 is a special value, the MTU value will be inherited from the current bridge"),
> +		bind: {
> +		    hidden: '{!showMTUHint}',
> +		},
> +	    },
>   	];
>   
>   	me.callParent();