987a9b4800
virtio-net has code to flush the queue and notify the iothread whenever new receive buffers are added by the guest. That is fine, and indeed we need to do the same in all other drivers. However, notifying the iothread should be work for the network subsystem. And since we are at it we can add a little smartness: if some of the queued packets already could not be delivered, there is no need to notify the iothread. Reported-by: Luigi Rizzo <rizzo@iet.unipi.it> Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Cc: Jan Kiszka <jan.kiszka@siemens.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2009 Red Hat, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef QEMU_NET_QUEUE_H
|
|
#define QEMU_NET_QUEUE_H
|
|
|
|
#include "qemu-common.h"
|
|
|
|
typedef struct NetPacket NetPacket;
|
|
typedef struct NetQueue NetQueue;
|
|
|
|
typedef void (NetPacketSent) (NetClientState *sender, ssize_t ret);
|
|
|
|
#define QEMU_NET_PACKET_FLAG_NONE 0
|
|
#define QEMU_NET_PACKET_FLAG_RAW (1<<0)
|
|
|
|
NetQueue *qemu_new_net_queue(void *opaque);
|
|
|
|
void qemu_del_net_queue(NetQueue *queue);
|
|
|
|
ssize_t qemu_net_queue_send(NetQueue *queue,
|
|
NetClientState *sender,
|
|
unsigned flags,
|
|
const uint8_t *data,
|
|
size_t size,
|
|
NetPacketSent *sent_cb);
|
|
|
|
ssize_t qemu_net_queue_send_iov(NetQueue *queue,
|
|
NetClientState *sender,
|
|
unsigned flags,
|
|
const struct iovec *iov,
|
|
int iovcnt,
|
|
NetPacketSent *sent_cb);
|
|
|
|
void qemu_net_queue_purge(NetQueue *queue, NetClientState *from);
|
|
bool qemu_net_queue_flush(NetQueue *queue);
|
|
|
|
#endif /* QEMU_NET_QUEUE_H */
|