vhost-net: move stubs to a separate file
There is no reason for CONFIG_VHOST_NET to be specific to a single target; it is a host feature that can be add to all targets, as long as they support the virtio-net device. Currently CONFIG_VHOST_NET depends on CONFIG_KVM, but ioeventfd support is present in the core memory API and works with other accelerators as well. As a first step, move the vhost-net stubs to a separate file. Later, they will become conditional on CONFIG_VIRTIO_NET, which is not available in .c files. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1543851204-41186-2-git-send-email-pbonzini@redhat.com> Message-Id: <1550165756-21617-2-git-send-email-pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -37,7 +37,9 @@ obj-$(CONFIG_PSERIES) += spapr_llan.o
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obj-$(CONFIG_XILINX_ETHLITE) += xilinx_ethlite.o
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obj-$(CONFIG_XILINX_ETHLITE) += xilinx_ethlite.o
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obj-$(CONFIG_VIRTIO_NET) += virtio-net.o
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obj-$(CONFIG_VIRTIO_NET) += virtio-net.o
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obj-y += vhost_net.o
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obj-$(CONFIG_VHOST_NET) += vhost_net.o
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common-obj-$(call lnot,$(CONFIG_VHOST_NET)) += vhost_net-stub.o
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common-obj-$(CONFIG_ALL) += vhost_net-stub.o
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obj-$(CONFIG_ETSEC) += fsl_etsec/etsec.o fsl_etsec/registers.o \
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obj-$(CONFIG_ETSEC) += fsl_etsec/etsec.o fsl_etsec/registers.o \
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fsl_etsec/rings.o fsl_etsec/miim.o
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fsl_etsec/rings.o fsl_etsec/miim.o
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@ -0,0 +1,92 @@
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/*
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* vhost-net support
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*
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* Copyright Red Hat, Inc. 2010
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*
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* Authors:
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* Michael S. Tsirkin <mst@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "net/net.h"
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#include "net/tap.h"
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#include "net/vhost-user.h"
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#include "hw/virtio/virtio-net.h"
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#include "net/vhost_net.h"
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#include "qemu/error-report.h"
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uint64_t vhost_net_get_max_queues(VHostNetState *net)
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{
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return 1;
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}
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struct vhost_net *vhost_net_init(VhostNetOptions *options)
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{
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error_report("vhost-net support is not compiled in");
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return NULL;
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}
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int vhost_net_start(VirtIODevice *dev,
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NetClientState *ncs,
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int total_queues)
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{
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return -ENOSYS;
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}
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void vhost_net_stop(VirtIODevice *dev,
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NetClientState *ncs,
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int total_queues)
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{
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}
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void vhost_net_cleanup(struct vhost_net *net)
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{
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}
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uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
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{
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return features;
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}
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void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
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{
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}
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uint64_t vhost_net_get_acked_features(VHostNetState *net)
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{
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return 0;
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}
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bool vhost_net_virtqueue_pending(VHostNetState *net, int idx)
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{
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return false;
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}
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void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
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int idx, bool mask)
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{
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}
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int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr)
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{
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return -1;
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}
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VHostNetState *get_vhost_net(NetClientState *nc)
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{
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return 0;
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}
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int vhost_set_vring_enable(NetClientState *nc, int enable)
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{
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return 0;
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}
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int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
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{
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return 0;
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}
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@ -23,7 +23,6 @@
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#include "qemu/error-report.h"
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#include "qemu/error-report.h"
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#ifdef CONFIG_VHOST_NET
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#include <linux/vhost.h>
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#include <linux/vhost.h>
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#include <sys/socket.h>
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#include <sys/socket.h>
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#include <linux/kvm.h>
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#include <linux/kvm.h>
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@ -449,76 +448,3 @@ int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
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return vhost_ops->vhost_net_set_mtu(&net->dev, mtu);
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return vhost_ops->vhost_net_set_mtu(&net->dev, mtu);
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}
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}
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#else
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uint64_t vhost_net_get_max_queues(VHostNetState *net)
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{
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return 1;
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}
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struct vhost_net *vhost_net_init(VhostNetOptions *options)
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{
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error_report("vhost-net support is not compiled in");
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return NULL;
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}
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int vhost_net_start(VirtIODevice *dev,
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NetClientState *ncs,
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int total_queues)
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{
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return -ENOSYS;
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}
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void vhost_net_stop(VirtIODevice *dev,
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NetClientState *ncs,
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int total_queues)
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{
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}
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void vhost_net_cleanup(struct vhost_net *net)
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{
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}
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uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
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{
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return features;
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}
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void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
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{
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}
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uint64_t vhost_net_get_acked_features(VHostNetState *net)
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{
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return 0;
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}
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bool vhost_net_virtqueue_pending(VHostNetState *net, int idx)
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{
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return false;
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}
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void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
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int idx, bool mask)
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{
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}
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int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr)
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{
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return -1;
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}
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VHostNetState *get_vhost_net(NetClientState *nc)
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{
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return 0;
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}
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int vhost_set_vring_enable(NetClientState *nc, int enable)
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{
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return 0;
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}
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int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
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{
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return 0;
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}
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#endif
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