As of a90a7425cf592a3afeff3eaf32f543b83050ee5c 'tap: Drop tap_can_send' vmxnet3 (with tap networking) can no longer receive once device is deactivated. Alas, as the device is initially "inactive", this brakes vmxnet3 receive functionality.
vmxnet3_can_receive() checks its internal 'device_active' flag (among other tests). However, as of a90a7425cf, if 'device_active' is false, packets will be queued by tap_send (at qemu_net_queue_send). However, vmxnet3 never flushes the queue, even if the device is later activated. Fix by calling 'qemu_flush_queued_packets()' when vmxnet3 device gets active. Signed-off-by: Shmulik Ladkani <shmulik.ladk...@ravellosystems.com> --- hw/net/vmxnet3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c index 59b06b8..8387571 100644 --- a/hw/net/vmxnet3.c +++ b/hw/net/vmxnet3.c @@ -1561,6 +1561,7 @@ static void vmxnet3_activate_device(VMXNET3State *s) vmxnet3_reset_mac(s); s->device_active = true; + qemu_flush_queued_packets(qemu_get_queue(s->nic)); } static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd) -- 1.9.1