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virtio: fix link up/down flag

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Type: fix

"set int state <interface> down" puts the virtio device link
down. It will not put the link in "UP" state, when
"set int state <interface up>" will be used again to change
the interface admin up. This patch fixes it.

To test:
create tap
set int state tap0 up
set int state tap0 down
sh hardware
sh int
set int state tap0 up
sh int
sh hardware

Change-Id: I3c0e31539f8a2a1e40220e7fb57eedecf408f067
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
(cherry picked from commit 529f0e97b6064039c500adce0d54b738954b2ffa)
This commit is contained in:
Mohsin Kazmi 2020-03-19 14:03:31 +01:00 committed by Andrew Yourtchenko
parent edef5b00ed
commit ffe2caf9da
1 changed files with 9 additions and 3 deletions
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8
src/vnet/devices/virtio/device.c
View File

@ -488,10 +488,16 @@ virtio_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
virtio_if_t *vif = pool_elt_at_index (mm->interfaces, hw->dev_instance);
if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
{
vif->flags |= VIRTIO_IF_FLAG_ADMIN_UP;
vnet_hw_interface_set_flags (vnm, vif->hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
}
else
{
vif->flags &= ~VIRTIO_IF_FLAG_ADMIN_UP;
vnet_hw_interface_set_flags (vnm, vif->hw_if_index, 0);
}
return 0;
}