libvirt/src/util/virnetdevbandwidth.h
Michal Privoznik b697411ca0 bandwidth: Create rate update function
This will be used whenever a NIC with guaranteed throughput is to
be plugged into a bridge. It will adjust the average throughput of
non guaranteed NICs (classid 1:2) to meet new requirements.
2012-12-11 18:36:55 +01:00

77 lines
2.9 KiB
C

/*
* Copyright (C) 2009-2012 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authors:
* Michal Privoznik <mprivozn@redhat.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_NETDEV_BANDWIDTH_H__
# define __VIR_NETDEV_BANDWIDTH_H__
# include "internal.h"
# include "virmacaddr.h"
typedef struct _virNetDevBandwidthRate virNetDevBandwidthRate;
typedef virNetDevBandwidthRate *virNetDevBandwidthRatePtr;
struct _virNetDevBandwidthRate {
unsigned long long average; /* kbytes/s */
unsigned long long peak; /* kbytes/s */
unsigned long long floor; /* kbytes/s */
unsigned long long burst; /* kbytes */
};
typedef struct _virNetDevBandwidth virNetDevBandwidth;
typedef virNetDevBandwidth *virNetDevBandwidthPtr;
struct _virNetDevBandwidth {
virNetDevBandwidthRatePtr in, out;
};
void virNetDevBandwidthFree(virNetDevBandwidthPtr def);
int virNetDevBandwidthSet(const char *ifname,
virNetDevBandwidthPtr bandwidth,
bool hierarchical_class)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevBandwidthClear(const char *ifname)
ATTRIBUTE_NONNULL(1);
int virNetDevBandwidthCopy(virNetDevBandwidthPtr *dest, const virNetDevBandwidthPtr src)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
bool virNetDevBandwidthEqual(virNetDevBandwidthPtr a, virNetDevBandwidthPtr b);
int virNetDevBandwidthPlug(const char *brname,
virNetDevBandwidthPtr net_bandwidth,
const virMacAddrPtr ifmac_ptr,
virNetDevBandwidthPtr bandwidth,
unsigned int id)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4)
ATTRIBUTE_RETURN_CHECK;
int virNetDevBandwidthUnplug(const char *brname,
unsigned int id)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevBandwidthUpdateRate(const char *ifname,
const char *class_id,
virNetDevBandwidthPtr bandwidth,
unsigned long long new_rate)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
ATTRIBUTE_RETURN_CHECK;
#endif /* __VIR_NETDEV_BANDWIDTH_H__ */