pcnet: Flush queued packets on end of STOP state

Analogously to other NICs, we have to inform the network layer when
the can_receive handler will no longer report 0. Without this, we may
get stuck waiting on queued incoming packets.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/hw/net/pcnet.c b/hw/net/pcnet.c
index b606d2b..63aa73a 100644 (file)
--- a/hw/net/pcnet.c
+++ b/hw/net/pcnet.c
@@ -861,6 +861,8 @@ static void pcnet_init(PCNetState *s)
 
     s->csr[0] |= 0x0101;
     s->csr[0] &= ~0x0004;       /* clear STOP bit */
+
+    qemu_flush_queued_packets(qemu_get_queue(s->nic));
 }
 
 static void pcnet_start(PCNetState *s)
@@ -878,6 +880,8 @@ static void pcnet_start(PCNetState *s)
     s->csr[0] &= ~0x0004;       /* clear STOP bit */
     s->csr[0] |= 0x0002;
     pcnet_poll_timer(s);
+
+    qemu_flush_queued_packets(qemu_get_queue(s->nic));
 }
 
 static void pcnet_stop(PCNetState *s)