diff options
Diffstat (limited to 'net.c')
| -rw-r--r-- | net.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/net.c b/net.c index e5d25d4b6d..a187a7b3db 100644 --- a/net.c +++ b/net.c @@ -357,7 +357,12 @@ void qemu_flush_queued_packets(NetClientState *nc) { nc->receive_disabled = 0; - qemu_net_queue_flush(nc->send_queue); + if (qemu_net_queue_flush(nc->send_queue)) { + /* We emptied the queue successfully, signal to the IO thread to repoll + * the file descriptor (for tap, for example). + */ + qemu_notify_event(); + } } static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender, @@ -418,16 +423,27 @@ ssize_t qemu_deliver_packet_iov(NetClientState *sender, void *opaque) { NetClientState *nc = opaque; + int ret; if (nc->link_down) { return iov_size(iov, iovcnt); } + if (nc->receive_disabled) { + return 0; + } + if (nc->info->receive_iov) { - return nc->info->receive_iov(nc, iov, iovcnt); + ret = nc->info->receive_iov(nc, iov, iovcnt); } else { - return nc_sendv_compat(nc, iov, iovcnt); + ret = nc_sendv_compat(nc, iov, iovcnt); } + + if (ret == 0) { + nc->receive_disabled = 1; + } + + return ret; } ssize_t qemu_sendv_packet_async(NetClientState *sender, |