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From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>, akong@redhat.com
Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
	qemu-devel@nongnu.org
Subject: Re: [RFC PATCH 2/2] virtio-net: introduce a new control to set macaddr
Date: Fri, 11 Jan 2013 11:13:04 +1030	[thread overview]
Message-ID: <87ip741rdz.fsf@rustcorp.com.au> (raw)
In-Reply-To: <20130110152649.GF30731@redhat.com>

"Michael S. Tsirkin" <mst@redhat.com> writes:
>> +	if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC)) {
>> +		/* Set MAC address by writing config space */
>>  		vdev->config->set(vdev, offsetof(struct virtio_net_config, mac),
>>  		                  dev->dev_addr, dev->addr_len);
>> +	}
>>  
>
> By the way, why don't we fail the command if VIRTIO_NET_F_MAC is off?
> Rusty?

Looked back through the history for this one.  I think the theory is that
if the guest doesn't set VIRTIO_NET_F_MAC, it means it doesn't care:
it's up to the guest.

Cheers,
Rusty.

  reply	other threads:[~2013-01-11  3:55 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-10 14:45 [RFC PATCH 0/2] make mac programming for virtio net more robust akong
2013-01-10 14:45 ` [RFC PATCH 1/2] move virtnet_send_command() above virtnet_set_mac_address() akong
2013-01-10 14:51   ` Jason Wang
2013-01-10 15:02     ` Michael S. Tsirkin
2013-01-10 14:45 ` [RFC PATCH 2/2] virtio-net: introduce a new control to set macaddr akong
2013-01-10 14:57   ` [Qemu-devel] " Jason Wang
2013-01-16  5:23     ` Amos Kong
2013-01-16  9:17       ` Michael S. Tsirkin
2013-01-10 15:26   ` Michael S. Tsirkin
2013-01-11  0:43     ` Rusty Russell [this message]
2013-01-10 14:51 ` [RFC PATCH] virtio-net: introduce a new macaddr control akong
2013-01-11  9:50   ` Stefan Hajnoczi
2013-01-10 15:08 ` [RFC PATCH 0/2] make mac programming for virtio net more robust Amos Kong
2013-01-10 15:28 ` Michael S. Tsirkin
2013-01-11  2:23   ` Rusty Russell
2013-01-11  7:46     ` Michael S. Tsirkin
2013-01-11 14:52       ` John Fastabend

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