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[Qemu-devel] [PATCH 01/71] vhost-net: move stubs to a separate file
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 01/71] vhost-net: move stubs to a separate file |
Date: |
Mon, 3 Dec 2018 16:32:14 +0100 |
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 <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
hw/net/Makefile.objs | 4 ++-
hw/net/vhost_net-stub.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++
hw/net/vhost_net.c | 74 --------------------------------------
3 files changed, 98 insertions(+), 75 deletions(-)
create mode 100644 hw/net/vhost_net-stub.c
diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs
index fa461d4..c2705e6 100644
--- a/hw/net/Makefile.objs
+++ b/hw/net/Makefile.objs
@@ -37,7 +37,9 @@ obj-$(CONFIG_PSERIES) += spapr_llan.o
obj-$(CONFIG_XILINX_ETHLITE) += xilinx_ethlite.o
obj-$(CONFIG_VIRTIO_NET) += virtio-net.o
-obj-y += vhost_net.o
+obj-$(CONFIG_VHOST_NET) += vhost_net.o
+common-obj-$(call lnot,$(CONFIG_VHOST_NET)) += vhost_net-stub.o
+common-obj-$(CONFIG_ALL) += vhost_net-stub.o
obj-$(CONFIG_ETSEC) += fsl_etsec/etsec.o fsl_etsec/registers.o \
fsl_etsec/rings.o fsl_etsec/miim.o
diff --git a/hw/net/vhost_net-stub.c b/hw/net/vhost_net-stub.c
new file mode 100644
index 0000000..4de1dfb
--- /dev/null
+++ b/hw/net/vhost_net-stub.c
@@ -0,0 +1,95 @@
+/*
+ * vhost-net support
+ *
+ * Copyright Red Hat, Inc. 2010
+ *
+ * Authors:
+ * Michael S. Tsirkin <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu/osdep.h"
+#include "net/net.h"
+#include "net/tap.h"
+#include "net/vhost-user.h"
+
+#include "hw/virtio/virtio-net.h"
+#include "net/vhost_net.h"
+#include "qemu/error-report.h"
+
+
+uint64_t vhost_net_get_max_queues(VHostNetState *net)
+{
+ return 1;
+}
+
+struct vhost_net *vhost_net_init(VhostNetOptions *options)
+{
+ error_report("vhost-net support is not compiled in");
+ return NULL;
+}
+
+int vhost_net_start(VirtIODevice *dev,
+ NetClientState *ncs,
+ int total_queues)
+{
+ return -ENOSYS;
+}
+void vhost_net_stop(VirtIODevice *dev,
+ NetClientState *ncs,
+ int total_queues)
+{
+}
+
+void vhost_net_cleanup(struct vhost_net *net)
+{
+}
+
+uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
+{
+ return features;
+}
+
+void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
+{
+}
+
+uint64_t vhost_net_get_acked_features(VHostNetState *net)
+{
+ return 0;
+}
+
+bool vhost_net_virtqueue_pending(VHostNetState *net, int idx)
+{
+ return false;
+}
+
+void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
+ int idx, bool mask)
+{
+}
+
+int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr)
+{
+ return -1;
+}
+
+VHostNetState *get_vhost_net(NetClientState *nc)
+{
+ return 0;
+}
+
+int vhost_set_vring_enable(NetClientState *nc, int enable)
+{
+ return 0;
+}
+
+int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
+{
+ return 0;
+}
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index e037db6..b901306 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -23,7 +23,6 @@
#include "qemu/error-report.h"
-#ifdef CONFIG_VHOST_NET
#include <linux/vhost.h>
#include <sys/socket.h>
#include <linux/kvm.h>
@@ -449,76 +448,3 @@ int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
return vhost_ops->vhost_net_set_mtu(&net->dev, mtu);
}
-
-#else
-uint64_t vhost_net_get_max_queues(VHostNetState *net)
-{
- return 1;
-}
-
-struct vhost_net *vhost_net_init(VhostNetOptions *options)
-{
- error_report("vhost-net support is not compiled in");
- return NULL;
-}
-
-int vhost_net_start(VirtIODevice *dev,
- NetClientState *ncs,
- int total_queues)
-{
- return -ENOSYS;
-}
-void vhost_net_stop(VirtIODevice *dev,
- NetClientState *ncs,
- int total_queues)
-{
-}
-
-void vhost_net_cleanup(struct vhost_net *net)
-{
-}
-
-uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
-{
- return features;
-}
-
-void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
-{
-}
-
-uint64_t vhost_net_get_acked_features(VHostNetState *net)
-{
- return 0;
-}
-
-bool vhost_net_virtqueue_pending(VHostNetState *net, int idx)
-{
- return false;
-}
-
-void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
- int idx, bool mask)
-{
-}
-
-int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr)
-{
- return -1;
-}
-
-VHostNetState *get_vhost_net(NetClientState *nc)
-{
- return 0;
-}
-
-int vhost_set_vring_enable(NetClientState *nc, int enable)
-{
- return 0;
-}
-
-int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu)
-{
- return 0;
-}
-#endif
--
1.8.3.1
- [Qemu-devel] [PATCH for-4.0 00/71] qtest: qgraph driver framework, Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 02/71] vhost-net-user: add stubs for when no virtio-net device is present, Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 01/71] vhost-net: move stubs to a separate file,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 03/71] vhost: restrict Linux dependency to kernel vhost, Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 04/71] vhost-net: compile it on all targets that have virtio-net., Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 05/71] vhost-net: revamp configure logic, Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 07/71] vhost-user-test: signal data_cond when s->rings changes, Paolo Bonzini, 2018/12/03
- [Qemu-devel] [PATCH 08/71] vhost-user: support cross-endian vnet headers, Paolo Bonzini, 2018/12/03