Re: [PATCH 1/6] net: introduce qemu_receive_packet()

[Philippe Mathieu-Daudé]

On 2/24/21 6:53 AM, Jason Wang wrote:
> Some NIC supports loopback mode and this is done by calling
> nc->info->receive() directly which in fact suppresses the effort of
> reentrancy check that is done in qemu_net_queue_send().
> 
> Unfortunately we can use qemu_net_queue_send() here since for loop
> back there's no sender as peer, so this patch introduce a
> qemu_receive_packet() which is used for implementing loopback mode
> for a NIC with this check.
> 
> NIC that supports loopback mode will be converted to this helper.
> 
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
>  include/net/net.h   |  5 +++++
>  include/net/queue.h |  8 ++++++++
>  net/net.c           | 38 +++++++++++++++++++++++++++++++-------
>  net/queue.c         | 22 ++++++++++++++++++++++
>  4 files changed, 66 insertions(+), 7 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>