From: Jason Wang <jasowang@redhat•com>
To: "Michael S. Tsirkin" <mst@redhat•com>
Cc: thuth@linux•vnet.ibm.com, rusty@au1•ibm.com,
netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
virtualization@lists•linux-foundation.org,
dahi@linux•vnet.ibm.com, pbonzini@redhat•com,
David Miller <davem@davemloft•net>
Subject: Re: [PATCH v6 34/46] virtio_net: disable mac write for virtio 1.0
Date: Fri, 28 Nov 2014 08:48:24 +0008 [thread overview]
Message-ID: <1417164024.5822.11@smtp.corp.redhat.com> (raw)
In-Reply-To: <1417118789-18231-35-git-send-email-mst@redhat.com>
On Fri, Nov 28, 2014 at 4:10 AM, Michael S. Tsirkin <mst@redhat•com>
wrote:
> The spec states that mac in config space is only driver-writable in
> the
> legacy case. Fence writing it in virtnet_set_mac_address() in the
> virtio 1.0 case.
>
> Suggested-by: Cornelia Huck <cornelia.huck@de•ibm.com>
> Signed-off-by: Michael S. Tsirkin <mst@redhat•com>
> ---
> drivers/net/virtio_net.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index c6a72d3..9ab3c50 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -1030,7 +1030,8 @@ static int virtnet_set_mac_address(struct
> net_device *dev, void *p)
> "Failed to set mac address by vq command.\n");
> return -EINVAL;
> }
> - } else if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC)) {
> + } else if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC) &&
> + !virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) {
> unsigned int i;
>
> /* Naturally, this has an atomicity problem. */
> --
> MST
Does this mean there's no way to setting mac addres
if ctrl mac addr is disabled in virtio-1?
If yes, we'd better keep this compatibility somehow.
next prev parent reply other threads:[~2014-11-28 8:40 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1417118789-18231-1-git-send-email-mst@redhat.com>
2014-11-27 20:09 ` [PATCH v6 15/46] virtio_net: v1.0 endianness Michael S. Tsirkin
2014-11-27 20:09 ` [PATCH v6 23/46] virtio_net: pass vi around Michael S. Tsirkin
2014-11-27 20:09 ` [PATCH v6 24/46] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr Michael S. Tsirkin
2014-11-28 8:30 ` Jason Wang
2014-11-27 20:09 ` [PATCH v6 25/46] virtio_net: stricter short buffer length checks Michael S. Tsirkin
2014-11-28 8:31 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 26/46] virtio_net: bigger header when VERSION_1 is set Michael S. Tsirkin
2014-11-28 8:31 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 27/46] virtio_net: enable v1.0 support Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 28/46] vhost: make features 64 bit Michael S. Tsirkin
2014-11-28 8:32 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 29/46] vhost: add memory access wrappers Michael S. Tsirkin
2014-11-28 8:35 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 30/46] vhost/net: force len for TX to host endian Michael S. Tsirkin
2014-11-28 8:36 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 31/46] vhost: virtio 1.0 endian-ness support Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 32/46] vhost/net: virtio 1.0 byte swap Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 33/46] vhost/net: larger header for virtio 1.0 Michael S. Tsirkin
2014-11-28 8:38 ` Jason Wang
2014-11-27 20:10 ` [PATCH v6 34/46] virtio_net: disable mac write " Michael S. Tsirkin
2014-11-28 8:40 ` Jason Wang [this message]
2014-11-29 17:28 ` Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 35/46] vhost/net: enable " Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 36/46] vhost/net: suppress compiler warning Michael S. Tsirkin
2014-11-27 20:10 ` [PATCH v6 37/46] tun: move internal flag defines out of uapi Michael S. Tsirkin
[not found] ` <1417118789-18231-38-git-send-email-mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-11-28 8:07 ` Jason Wang
[not found] ` <1417162052.5822.0-LLcwxoN42L4NLKR9yMNcA1aTQe2KTcn/@public.gmane.org>
2014-11-29 17:17 ` Michael S. Tsirkin
2014-11-27 20:11 ` [PATCH v6 38/46] tun: drop most type defines Michael S. Tsirkin
2014-11-28 8:09 ` Jason Wang
2014-11-29 17:23 ` Michael S. Tsirkin
2014-11-27 20:11 ` [PATCH v6 39/46] tun: add VNET_LE flag Michael S. Tsirkin
2014-11-27 20:11 ` [PATCH v6 40/46] tun: TUN_VNET_LE support, fix sparse warnings for virtio headers Michael S. Tsirkin
2014-11-28 8:19 ` Jason Wang
2014-11-27 20:11 ` [PATCH v6 41/46] macvtap: TUN_VNET_HDR support Michael S. Tsirkin
2014-11-28 8:24 ` Jason Wang
2014-11-27 20:11 ` [PATCH v6 45/46] vhost/scsi: partial virtio 1.0 support Michael S. Tsirkin
2014-11-27 20:11 ` [PATCH v6 46/46] af_packet: virtio 1.0 stubs Michael S. Tsirkin
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