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Merge branch 'virtio_net-vdpa-update-mac-address-when-it-is-generated-by-virtio-net'
authorJakub Kicinski <kuba@kernel.org>
Thu, 2 Feb 2023 04:53:06 +0000 (20:53 -0800)
committerJakub Kicinski <kuba@kernel.org>
Thu, 2 Feb 2023 04:53:06 +0000 (20:53 -0800)
commitd8673afbf51036ed1d72d9828d0d679035bb0d54
treea98fdc592d22358507b0a12740dd3c4543b6ab09
parentca3daf437d9c261ca498f518090c3ddbf1bf824f
parent9f62d221a4b0aa6a8d2a18053a0ca349c025297c
Merge branch 'virtio_net-vdpa-update-mac-address-when-it-is-generated-by-virtio-net'

Laurent Vivier says:

====================
virtio_net: vdpa: update MAC address when it is generated by virtio-net

When the MAC address is not provided by the vdpa device virtio_net
driver assigns a random one without notifying the device.
The consequence, in the case of mlx5_vdpa, is the internal routing
tables of the device are not updated and this can block the
communication between two namespaces.

To fix this problem, use virtnet_send_command(VIRTIO_NET_CTRL_MAC)
to set the address from virtnet_probe() when the MAC address is
not provided by the device.
====================

Link: https://lore.kernel.org/r/20230127204500.51930-1-lvivier@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>