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author | Paolo Bonzini <pbonzini@redhat.com> | 2019-02-14 18:35:49 +0100 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2019-02-21 12:28:01 -0500 |
commit | 56f41de7372eb81e751e65942e7ec928e07fb67e (patch) | |
tree | 0de8e97db26597c57ebde105375528eb4cfe9069 | |
parent | 7b28c61524540e325e241aa31e6f10e99a5a9516 (diff) | |
download | qemu-56f41de7372eb81e751e65942e7ec928e07fb67e.zip qemu-56f41de7372eb81e751e65942e7ec928e07fb67e.tar.gz qemu-56f41de7372eb81e751e65942e7ec928e07fb67e.tar.bz2 |
vhost-net-user: add stubs for when no virtio-net device is present
hw/net/vhost_net.c needs functions that are declared in net/vhost-user.c: the
vhost-user code is always compiled into QEMU, only the constructor
net_init_vhost_user is unreachable. Also, net/vhost-user.c needs functions
declared in hw/virtio/vhost-stub.c even if no virtio device exists.
Break this dependency. First, add a minimal version of net/vhost-user.c,
with no functionality and no dependency on vhost code. Second, #ifdef out
the calls back to net/vhost-user.c from hw/net/vhost_net.c.
While at it, this patch fixes the CONFIG_VHOST_NET_USE*D* typo.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <1543851204-41186-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1550165756-21617-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rwxr-xr-x | configure | 2 | ||||
-rw-r--r-- | hw/net/vhost_net.c | 4 | ||||
-rw-r--r-- | net/Makefile.objs | 4 | ||||
-rw-r--r-- | net/net.c | 2 | ||||
-rw-r--r-- | net/vhost-user-stub.c | 23 |
5 files changed, 32 insertions, 3 deletions
@@ -6590,7 +6590,7 @@ if test "$vhost_scsi" = "yes" ; then echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak fi if test "$vhost_net" = "yes" && test "$vhost_user" = "yes"; then - echo "CONFIG_VHOST_NET_USED=y" >> $config_host_mak + echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak fi if test "$vhost_crypto" = "yes" ; then echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index b901306..2a300ee 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -193,6 +193,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options) } /* Set sane init value. Override when guest acks. */ +#ifdef CONFIG_VHOST_NET_USER if (net->nc->info->type == NET_CLIENT_DRIVER_VHOST_USER) { features = vhost_user_get_acked_features(net->nc); if (~net->dev.features & features) { @@ -202,6 +203,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options) goto fail; } } +#endif vhost_net_ack_features(net, features); @@ -413,10 +415,12 @@ VHostNetState *get_vhost_net(NetClientState *nc) case NET_CLIENT_DRIVER_TAP: vhost_net = tap_get_vhost_net(nc); break; +#ifdef CONFIG_VHOST_NET_USER case NET_CLIENT_DRIVER_VHOST_USER: vhost_net = vhost_user_get_vhost_net(nc); assert(vhost_net); break; +#endif default: break; } diff --git a/net/Makefile.objs b/net/Makefile.objs index b2bf88a..df2b409 100644 --- a/net/Makefile.objs +++ b/net/Makefile.objs @@ -3,7 +3,9 @@ common-obj-y += socket.o common-obj-y += dump.o common-obj-y += eth.o common-obj-$(CONFIG_L2TPV3) += l2tpv3.o -common-obj-$(CONFIG_POSIX) += vhost-user.o +common-obj-$(call land,$(CONFIG_VIRTIO_NET),$(CONFIG_VHOST_NET_USER)) += vhost-user.o +common-obj-$(call land,$(call lnot,$(CONFIG_VIRTIO_NET)),$(CONFIG_VHOST_NET_USER)) += vhost-user-stub.o +common-obj-$(CONFIG_ALL) += vhost-user-stub.o common-obj-$(CONFIG_SLIRP) += slirp.o common-obj-$(CONFIG_VDE) += vde.o common-obj-$(CONFIG_NETMAP) += netmap.o @@ -961,7 +961,7 @@ static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])( [NET_CLIENT_DRIVER_BRIDGE] = net_init_bridge, #endif [NET_CLIENT_DRIVER_HUBPORT] = net_init_hubport, -#ifdef CONFIG_VHOST_NET_USED +#ifdef CONFIG_VHOST_NET_USER [NET_CLIENT_DRIVER_VHOST_USER] = net_init_vhost_user, #endif #ifdef CONFIG_L2TPV3 diff --git a/net/vhost-user-stub.c b/net/vhost-user-stub.c new file mode 100644 index 0000000..52ab4e1 --- /dev/null +++ b/net/vhost-user-stub.c @@ -0,0 +1,23 @@ +/* + * vhost-user-stub.c + * + * Copyright (c) 2018 Red Hat, Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "clients.h" +#include "net/vhost_net.h" +#include "net/vhost-user.h" +#include "qemu/error-report.h" +#include "qapi/error.h" + +int net_init_vhost_user(const Netdev *netdev, const char *name, + NetClientState *peer, Error **errp) +{ + error_setg(errp, "vhost-user requires frontend driver virtio-net-*"); + return -1; +} |