mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-05 20:35:44 +00:00
199ee608f0
When frontend and backend are connected through a hub as below (showing only one direction), and the frontend (or in general, all output ports of the hub) cannot accept more traffic, the backend queues packets in queue-A. When the frontend (or in general, one output port) becomes ready again, quemu tries to flush packets from queue-B, which is unfortunately empty. e1000.0 <--[queue B]-- hub0port0(hub)hub0port1 <--[queue A]-- tap.0 To fix this i propose to introduce a new function net_hub_flush() which is called when trying to flush a queue connected to a hub. Signed-off-by: Luigi Rizzo <rizzo@iet.unipi.it> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
26 lines
647 B
C
26 lines
647 B
C
/*
|
|
* Hub net client
|
|
*
|
|
* Copyright IBM, Corp. 2012
|
|
*
|
|
* Authors:
|
|
* Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
|
|
* Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef NET_HUB_H
|
|
#define NET_HUB_H
|
|
|
|
#include "qemu-common.h"
|
|
|
|
NetClientState *net_hub_add_port(int hub_id, const char *name);
|
|
NetClientState *net_hub_find_client_by_name(int hub_id, const char *name);
|
|
void net_hub_info(Monitor *mon);
|
|
void net_hub_check_clients(void);
|
|
bool net_hub_flush(NetClientState *nc);
|
|
|
|
#endif /* NET_HUB_H */
|