[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 06/25] vhost-net-user: add stubs for when no virtio-n
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 06/25] vhost-net-user: add stubs for when no virtio-net device is present |
Date: |
Mon, 4 Feb 2019 09:44:28 -0500 |
From: Paolo Bonzini <address@hidden>
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 <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Thomas Huth <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
configure | 2 +-
hw/net/vhost_net.c | 4 ++++
net/net.c | 2 +-
net/vhost-user-stub.c | 23 +++++++++++++++++++++++
net/Makefile.objs | 4 +++-
5 files changed, 32 insertions(+), 3 deletions(-)
create mode 100644 net/vhost-user-stub.c
diff --git a/configure b/configure
index f8176b3c40..e9a7959083 100755
--- a/configure
+++ b/configure
@@ -6589,7 +6589,7 @@ if test "$vhost_scsi" = "yes" ; then
echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
fi
if test "$vhost_net" = "yes" -a "$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 b901306000..2a300ee307 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/net.c b/net/net.c
index 3acbdccd61..ca0e14c097 100644
--- a/net/net.c
+++ b/net/net.c
@@ -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 0000000000..52ab4e13f1
--- /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;
+}
diff --git a/net/Makefile.objs b/net/Makefile.objs
index b2bf88a0ef..df2b409066 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
--
MST
- [Qemu-devel] [PULL 00/25] pci, pc, virtio: fixes, cleanups, features, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 21/25] i386, acpi: cleanup build_facs by removing second unused argument, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 23/25] mmap-alloc: fix hugetlbfs misaligned length in ppc64, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 25/25] contrib/libvhost-user: cleanup casts, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 20/25] fw_cfg: fix the life cycle and the name of "qemu_extra_params_fw", Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 24/25] r2d: fix build on mingw, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 06/25] vhost-net-user: add stubs for when no virtio-net device is present,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 22/25] mmap-alloc: unfold qemu_ram_mmap(), Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 17/25] vhost-user-blk: add discard/write zeroes features support, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 18/25] hw/virtio: Use CONFIG_VIRTIO_PCI switch instead of CONFIG_PCI, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 19/25] acpi: Make TPM 2.0 with TIS available as MSFT0101, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 16/25] contrib/vhost-user-blk: fix the compilation issue, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 14/25] i386/kvm: ignore masked irqs when update msi routes, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 07/25] vhost: restrict Linux dependency to kernel vhost, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 11/25] intel_iommu: fix operator in vtd_switch_address_space, Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 08/25] vhost-net: compile it on all targets that have virtio-net., Michael S. Tsirkin, 2019/02/04
- [Qemu-devel] [PULL 15/25] contrib: compile vhost-user-blk tool by default, Michael S. Tsirkin, 2019/02/04