[dpdk-dev] [PATCH v2 3/5] vhost: enable promisc mode and config VMDQ offload register for multicast feature

[Xie, Huawei]

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Thursday, January 15, 2015 12:37 AM
> To: dev at dpdk.org
> Cc: Xie, Huawei; Ouyang, Changchun
> Subject: Re: [dpdk-dev] [PATCH v2 3/5] vhost: enable promisc mode and config
> VMDQ offload register for multicast feature
> 
> Hi Huawei,
> 
> 2015-01-08 10:07, Xie, Huawei:
> > CTRL_RX is dependent on CTRL_VQ.
> > CTRL_VQ should be enabled if CTRL_RX is enabled.
> > Observed that virtio-net driver will crash if CTRL_VQ isn't enabled in vhost-user
> case.
> > 	/* Caller should know better */
> > 	BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ) ||
> > 		(out + in > VIRTNET_SEND_COMMAND_SG_MAX));
> 
> Do you plan to send a patch?
In the vhost-user patch, will temporarily turn this on.
However, we don't create any control queues in vhost.
Will investigate the root cause later.
> 
> --
> Thomas