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812932bea2
So, if a domain vNIC's bandwidth has been successfully set, it's possible that because @floor is set on network's bridge, this part may need updating too. And that's exactly what this function does. While the previous commit introduced a function to check if @floor can be satisfied, this does all the hard work. In general, there may be three, well four possibilities: 1) No change in @floor value (either it remain unset, or its value hasn't changed) 2) The @floor value has changed from a non-zero to a non-zero value 3) New @floor is to be set 4) Old @floor must be cleared out The difference between 2), 3) and 4) is, that while in 2) the QoS tree on the network's bridge already has a special class for the vNIC, in 3) the class must be created from scratch. In 4) it must be removed. Fortunately, we have helpers for all three interesting cases. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/*
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* bridge_driver.h: core driver methods for managing networks
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*
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* Copyright (C) 2006-2015 Red Hat, Inc.
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef __VIR_NETWORK__DRIVER_H
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# define __VIR_NETWORK__DRIVER_H
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# include "internal.h"
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# include "network_conf.h"
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# include "domain_conf.h"
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# include "vircommand.h"
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# include "virdnsmasq.h"
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int networkRegister(void);
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# if WITH_NETWORK
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int networkAllocateActualDevice(virDomainDefPtr dom,
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virDomainNetDefPtr iface)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int networkNotifyActualDevice(virDomainDefPtr dom,
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virDomainNetDefPtr iface)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int networkReleaseActualDevice(virDomainDefPtr dom,
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virDomainNetDefPtr iface)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int networkGetNetworkAddress(const char *netname, char **netaddr)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int networkDnsmasqConfContents(virNetworkObjPtr network,
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const char *pidfile,
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char **configstr,
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dnsmasqContext *dctx,
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dnsmasqCapsPtr caps);
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bool networkBandwidthChangeAllowed(virDomainNetDefPtr iface,
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virNetDevBandwidthPtr newBandwidth)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int networkBandwidthUpdate(virDomainNetDefPtr iface,
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virNetDevBandwidthPtr newBandwidth)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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# else
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/* Define no-op replacements that don't drag in any link dependencies. */
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# define networkAllocateActualDevice(dom, iface) 0
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# define networkGetNetworkAddress(netname, netaddr) (-2)
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# define networkDnsmasqConfContents(network, pidfile, configstr, \
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dctx, caps) 0
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static inline int
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networkNotifyActualDevice(virDomainDefPtr dom ATTRIBUTE_UNUSED,
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virDomainNetDefPtr iface ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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static inline int
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networkReleaseActualDevice(virDomainDefPtr dom ATTRIBUTE_UNUSED,
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virDomainNetDefPtr iface ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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static inline bool
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networkBandwidthChangeAllowed(virDomainNetDefPtr iface ATTRIBUTE_UNUSED,
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virNetDevBandwidthPtr newBandwidth ATTRIBUTE_UNUSED)
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{
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return true;
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}
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static inline int
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networkBandwidthUpdate(virDomainNetDefPtr iface ATTRIBUTE_UNUSED,
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virNetDevBandwidthPtr newBandwidth ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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# endif
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typedef char *(*networkDnsmasqLeaseFileNameFunc)(const char *netname);
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#endif /* __VIR_NETWORK__DRIVER_H */
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