[v3,0/4] virtio_net: Add the check for vdpa's mac address

Message

Cindy Lu Oct. 26, 2024, 7:59 a.m. UTC

When using a VDPA device, it is important to ensure that the MAC
address is correctly set.Here we add Add a new parameter to 
enable this check.
There are only three acceptable situations for MAC setup; any other
configuration will fail to boot.

The usage is:
....
-netdev type=vhost-vdpa,vhostdev=/dev/vhost-vdpa-0,id=vhost-vdpa0,macstrickcheck=true\
-device virtio-net-pci,netdev=vhost-vdpa0\
....

tested by ConnectX-6 Dx device

change in v3
1. add a new parameter to enable the check and keep the old behavior
2. adjust the comment and make it more clear

Cindy Lu (4):
  vhost_vdpa : Add a new parameter to enable check mac address
  virtio_net: Add the check for vdpa's mac address
  virtio_net: Add the 2rd acceptable situation for Mac setup.
  virtio_net: Add the 3rd acceptable situation for Mac setup.

 hw/net/virtio-net.c | 67 ++++++++++++++++++++++++++++++++++++++++++++-
 include/net/net.h   |  1 +
 net/vhost-vdpa.c    |  4 +++
 qapi/net.json       |  5 ++++
 4 files changed, 76 insertions(+), 1 deletion(-)