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net: set endianness on all backend devices 

commit 5be7d9f1b1
       vhost-net: tell tap backend about the vnet endianness

makes vhost net to set the endianness of the device, but only for
the first device.

In case of multiqueue, we have multiple devices... This patch sets the
endianness for all the devices of the interface.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit a407644079)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Laurent Vivier 2016-01-13 20:26:25 +01:00 committed by Michael Roth
parent fe90bdc25b
commit 9849b1912f
1 changed files with 11 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
hw/net/vhost_net.c
View File

@ -300,21 +300,19 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(dev)));
VirtioBusState *vbus = VIRTIO_BUS(qbus);
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
int r, e, i;
int r, e, i, j;
if (!k->set_guest_notifiers) {
error_report("binding does not support guest notifiers");
r = -ENOSYS;
goto err;
return -ENOSYS;
}
r = vhost_net_set_vnet_endian(dev, ncs[0].peer, true);
if (r < 0) {
goto err;
}
for (i = 0; i < total_queues; i++) {
vhost_net_set_vq_index(get_vhost_net(ncs[i].peer), i * 2);
for (j = 0; j < total_queues; j++) {
r = vhost_net_set_vnet_endian(dev, ncs[j].peer, true);
if (r < 0) {
goto err_endian;
}
vhost_net_set_vq_index(get_vhost_net(ncs[j].peer), j * 2);
}
r = k->set_guest_notifiers(qbus->parent, total_queues * 2, true);
@ -343,8 +341,9 @@ err_start:
fflush(stderr);
}
err_endian:
vhost_net_set_vnet_endian(dev, ncs[0].peer, false);
err:
while (--j >= 0) {
vhost_net_set_vnet_endian(dev, ncs[j].peer, false);
}
return r;
}