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Re: [Qemu-devel] [PATCH] virtio-9p: move 9p files around

From: Venkateswararao Jujjuri
Subject: Re: [Qemu-devel] [PATCH] virtio-9p: move 9p files around
Date: Wed, 27 Apr 2011 08:57:48 -0700
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 
On 04/27/2011 03:33 AM, Aneesh Kumar K.V wrote:

On Wed, 27 Apr 2011 09:03:56 +0200, Jan Kiszka<address@hidden>  wrote:

On 2011-04-27 08:53, Aneesh Kumar K.V wrote:

Now that we start adding more files related to 9pfs
it make sense to move them to a separate directory

Signed-off-by: Aneesh Kumar K.V<address@hidden>
---
  Makefile.objs                        |   10 +++++++---
  Makefile.target                      |    6 ++++--
  configure                            |    2 ++
  {hw =>  fsdev}/file-op-9p.h           |    0
  fsdev/qemu-fsdev.h                   |    2 +-
  hw/{ =>  9pfs}/virtio-9p-debug.c      |    0
  hw/{ =>  9pfs}/virtio-9p-debug.h      |    0
  hw/{ =>  9pfs}/virtio-9p-local.c      |    0
  hw/{ =>  9pfs}/virtio-9p-posix-acl.c  |    2 +-
  hw/{ =>  9pfs}/virtio-9p-xattr-user.c |    2 +-
  hw/{ =>  9pfs}/virtio-9p-xattr.c      |    2 +-
  hw/{ =>  9pfs}/virtio-9p-xattr.h      |    0
  hw/{ =>  9pfs}/virtio-9p.c            |    0
  hw/{ =>  9pfs}/virtio-9p.h            |    2 +-
  14 files changed, 18 insertions(+), 10 deletions(-)
  rename {hw =>  fsdev}/file-op-9p.h (100%)
  rename hw/{ =>  9pfs}/virtio-9p-debug.c (100%)
  rename hw/{ =>  9pfs}/virtio-9p-debug.h (100%)
  rename hw/{ =>  9pfs}/virtio-9p-local.c (100%)
  rename hw/{ =>  9pfs}/virtio-9p-posix-acl.c (99%)
  rename hw/{ =>  9pfs}/virtio-9p-xattr-user.c (98%)
  rename hw/{ =>  9pfs}/virtio-9p-xattr.c (99%)
  rename hw/{ =>  9pfs}/virtio-9p-xattr.h (100%)
  rename hw/{ =>  9pfs}/virtio-9p.c (100%)

That's a good chance to split up this file, move virtio_9p_get_config
into a separate one and build the large virtio-9p.c as part of hwlib
while keeping the new file target-specific. I've some hack for this
lying around, but now that you are already at it...


How about doing the below patch also and move all those device specific
stuff to virtio-9p-device.c and rest in virtio-9p.c ?
I think this goes on top of your old patch. I am ready to give pull to Anthony with old patch. 
May be this can go in next pull?

Thanks,
JV


commit 9de1857114dac1dcd0c6399d91036c279373b2d0
Author: Aneesh Kumar K.V<address@hidden>
Date:   Thu Oct 21 13:50:05 2010 +0530

     virtio-9p: Move 9p device registration into virtio-9p.c

     This patch move the 9p device registration into its own file

     Signed-off-by: Aneesh Kumar K.V<address@hidden>

diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c
index daade77..11e87a3 100644
--- a/hw/virtio-9p.c
+++ b/hw/virtio-9p.c
@@ -14,6 +14,7 @@
  #include "virtio.h"
  #include "pc.h"
  #include "qemu_socket.h"
+#include "virtio-pci.h"
  #include "virtio-9p.h"
  #include "fsdev/qemu-fsdev.h"
  #include "virtio-9p-debug.h"
@@ -3741,3 +3742,37 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf 
*conf)

      return&s->vdev;
  }
+
+static int virtio_9p_init_pci(PCIDevice *pci_dev)
+{
+    VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
+    VirtIODevice *vdev;
+
+    vdev = virtio_9p_init(&pci_dev->qdev,&proxy->fsconf);
+    virtio_init_pci(proxy, vdev,
+                    PCI_VENDOR_ID_REDHAT_QUMRANET,
+                    0x1009,
+                    0x2,
+                    0x00);
+
+    return 0;
+}
+
+static PCIDeviceInfo virtio_9p_info = {
+        .qdev.name = "virtio-9p-pci",
+        .qdev.size = sizeof(VirtIOPCIProxy),
+        .init      = virtio_9p_init_pci,
+        .qdev.props = (Property[]) {
+            DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
+            DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
+            DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
+            DEFINE_PROP_END_OF_LIST(),
+        }
+};
+
+static void virtio_9p_register_devices(void)
+{
+    pci_qdev_register(&virtio_9p_info);
+}
+
+device_init(virtio_9p_register_devices)
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 729917d..f1377b1 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -25,6 +25,7 @@
  #include "loader.h"
  #include "kvm.h"
  #include "blockdev.h"
+#include "virtio-pci.h"

  /* from Linux's linux/virtio_pci.h */

@@ -90,26 +91,6 @@
   */
  #define wmb() do { } while (0)

-/* PCI bindings.  */
-
-typedef struct {
-    PCIDevice pci_dev;
-    VirtIODevice *vdev;
-    uint32_t bugs;
-    uint32_t addr;
-    uint32_t class_code;
-    uint32_t nvectors;
-    BlockConf block;
-    NICConf nic;
-    uint32_t host_features;
-#ifdef CONFIG_LINUX
-    V9fsConf fsconf;
-#endif
-    /* Max. number of ports we can have for a the virtio-serial device */
-    uint32_t max_virtserial_ports;
-    virtio_net_conf net;
-} VirtIOPCIProxy;
-
  /* virtio device */

  static void virtio_pci_notify(void *opaque, uint16_t vector)
@@ -518,7 +499,7 @@ static const VirtIOBindings virtio_pci_bindings = {
      .set_guest_notifiers = virtio_pci_set_guest_notifiers,
  };

-static void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
+void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
                              uint16_t vendor, uint16_t device,
                              uint16_t class_code, uint8_t pif)
  {
@@ -677,23 +658,6 @@ static int virtio_balloon_init_pci(PCIDevice *pci_dev)
      return 0;
  }

-#ifdef CONFIG_VIRTFS
-static int virtio_9p_init_pci(PCIDevice *pci_dev)
-{
-    VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
-    VirtIODevice *vdev;
-
-    vdev = virtio_9p_init(&pci_dev->qdev,&proxy->fsconf);
-    virtio_init_pci(proxy, vdev,
-                    PCI_VENDOR_ID_REDHAT_QUMRANET,
-                    0x1009,
-                    0x2,
-                    0x00);
-
-    return 0;
-}
-#endif
-
  static PCIDeviceInfo virtio_info[] = {
      {
          .qdev.name = "virtio-blk-pci",
@@ -752,20 +716,7 @@ static PCIDeviceInfo virtio_info[] = {
              DEFINE_PROP_END_OF_LIST(),
          },
          .qdev.reset = virtio_pci_reset,
-    },{
-#ifdef CONFIG_VIRTFS
-        .qdev.name = "virtio-9p-pci",
-        .qdev.size = sizeof(VirtIOPCIProxy),
-        .init      = virtio_9p_init_pci,
-        .qdev.props = (Property[]) {
-            DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
-            DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
-            DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
-            DEFINE_PROP_END_OF_LIST(),
-        },
-    }, {
-#endif
-        /* end of list */
+    }, {         /* end of list */
      }
  };

diff --git a/hw/virtio-pci.h b/hw/virtio-pci.h
new file mode 100644
index 0000000..d9bf683
--- /dev/null
+++ b/hw/virtio-pci.h
@@ -0,0 +1,42 @@
+/*
+ * Virtio PCI Bindings
+ *
+ * Copyright IBM, Corp. 2007
+ * Copyright (c) 2009 CodeSourcery
+ *
+ * Authors:
+ *  Anthony Liguori<address@hidden>
+ *  Paul Brook<address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ */
+
+#ifndef QEMU_VIRTIO_PCI_H
+#define QEMU_VIRTIO_PCI_H
+
+#include "virtio-net.h"
+
+typedef struct {
+    PCIDevice pci_dev;
+    VirtIODevice *vdev;
+    uint32_t bugs;
+    uint32_t addr;
+    uint32_t class_code;
+    uint32_t nvectors;
+    BlockConf block;
+    NICConf nic;
+    uint32_t host_features;
+#ifdef CONFIG_LINUX
+    V9fsConf fsconf;
+#endif
+    /* Max. number of ports we can have for a the virtio-serial device */
+    uint32_t max_virtserial_ports;
+    virtio_net_conf net;
+} VirtIOPCIProxy;
+
+extern void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
+                            uint16_t vendor, uint16_t device,
+                            uint16_t class_code, uint8_t pif);
+
+#endif
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