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Re: [Qemu-devel] [PATCH 4/9] virtio-9p: remove PCI dependencies from hw/
From: |
Aneesh Kumar K.V |
Subject: |
Re: [Qemu-devel] [PATCH 4/9] virtio-9p: remove PCI dependencies from hw/9pfs/ |
Date: |
Mon, 28 Nov 2011 22:48:18 +0530 |
User-agent: |
Notmuch/0.10+49~g9d33497 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
On Thu, 24 Nov 2011 13:38:23 +0100, Paolo Bonzini <address@hidden> wrote:
> Also move the 9p.h file to 9pfs/virtio-9p-device.h, for consistency
> with the corresponding .c file.
>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> hw/9pfs/virtio-9p-device.c | 35
> +---------------------------------
> hw/{9p.h => 9pfs/virtio-9p-device.h} | 4 +-
> hw/9pfs/virtio-9p.c | 1 -
> hw/virtio-pci.c | 35
> ++++++++++++++++++++++++++++++++++
> hw/virtio-pci.h | 1 +
> hw/virtio.h | 2 +-
> 6 files changed, 40 insertions(+), 38 deletions(-)
> rename hw/{9p.h => 9pfs/virtio-9p-device.h} (85%)
>
> diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
> index bba4c54..509faa8 100644
> --- a/hw/9pfs/virtio-9p-device.c
> +++ b/hw/9pfs/virtio-9p-device.c
> @@ -14,9 +14,9 @@
> #include "hw/virtio.h"
> #include "hw/pc.h"
> #include "qemu_socket.h"
> -#include "hw/virtio-pci.h"
> #include "virtio-9p.h"
> #include "fsdev/qemu-fsdev.h"
> +#include "virtio-9p-device.h"
> #include "virtio-9p-xattr.h"
> #include "virtio-9p-coth.h"
>
> @@ -147,41 +147,8 @@ 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);
> - vdev->nvectors = proxy->nvectors;
> - virtio_init_pci(proxy, vdev);
> - /* make the actual value visible */
> - proxy->nvectors = vdev->nvectors;
> - return 0;
> -}
> -
> -static PCIDeviceInfo virtio_9p_info = {
> - .qdev.name = "virtio-9p-pci",
> - .qdev.size = sizeof(VirtIOPCIProxy),
> - .init = virtio_9p_init_pci,
> - .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
> - .device_id = 0x1009,
> - .revision = VIRTIO_PCI_ABI_VERSION,
> - .class_id = 0x2,
> - .qdev.props = (Property[]) {
> - DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
> - VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
> - DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
> - 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);
> virtio_9p_set_fd_limit();
> }
>
> diff --git a/hw/9p.h b/hw/9pfs/virtio-9p-device.h
> similarity index 85%
> rename from hw/9p.h
> rename to hw/9pfs/virtio-9p-device.h
> index d9951d6..65789db 100644
> --- a/hw/9p.h
> +++ b/hw/9pfs/virtio-9p-device.h
> @@ -11,8 +11,8 @@
> *
> */
>
> -#ifndef QEMU_9P_H
> -#define QEMU_9P_H
> +#ifndef QEMU_VIRTIO_9P_DEVICE_H
> +#define QEMU_VIRTIO_9P_DEVICE_H
>
> typedef struct V9fsConf
> {
> diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
> index 1b2fc5d..7b786e5 100644
> --- a/hw/9pfs/virtio-9p.c
> +++ b/hw/9pfs/virtio-9p.c
> @@ -17,7 +17,6 @@
> #include "hw/virtio.h"
> #include "hw/pc.h"
> #include "qemu_socket.h"
> -#include "hw/virtio-pci.h"
> #include "virtio-9p.h"
> #include "fsdev/qemu-fsdev.h"
> #include "virtio-9p-xattr.h"
> diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
> index d5cdc04..78c1790 100644
> --- a/hw/virtio-pci.c
> +++ b/hw/virtio-pci.c
> @@ -779,6 +779,21 @@ static int virtio_balloon_exit_pci(PCIDevice *pci_dev)
> return virtio_exit_pci(pci_dev);
> }
>
> +#ifdef CONFIG_LINUX
> +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);
> + vdev->nvectors = proxy->nvectors;
> + virtio_init_pci(proxy, vdev);
> + /* make the actual value visible */
> + proxy->nvectors = vdev->nvectors;
> + return 0;
> +}
> +#endif
> +
> static PCIDeviceInfo virtio_info[] = {
> {
> .qdev.name = "virtio-blk-pci",
> @@ -855,6 +870,26 @@ static PCIDeviceInfo virtio_info[] = {
> DEFINE_PROP_END_OF_LIST(),
> },
> .qdev.reset = virtio_pci_reset,
> +#ifdef CONFIG_LINUX
> + }, {
> + .qdev.name = "virtio-9p-pci",
> + .qdev.size = sizeof(VirtIOPCIProxy),
> + .init = virtio_9p_init_pci,
> + .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
> + .device_id = 0x1009,
> + .revision = VIRTIO_PCI_ABI_VERSION,
> + .class_id = 0x2,
> + .qdev.props = (Property[]) {
> + DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
> + VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
> + DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
> + 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(),
> + },
> + .qdev.reset = virtio_pci_reset,
> +#endif
> },{
> /* end of list */
> }
> diff --git a/hw/virtio-pci.h b/hw/virtio-pci.h
> index 4126705..7654c84 100644
> --- a/hw/virtio-pci.h
> +++ b/hw/virtio-pci.h
> @@ -17,6 +17,7 @@
>
> #include "virtio-net.h"
> #include "virtio-serial.h"
> +#include "9pfs/virtio-9p-device.h"
>
> /* Performance improves when virtqueue kick processing is decoupled from the
> * vcpu thread using ioeventfd for some devices. */
> diff --git a/hw/virtio.h b/hw/virtio.h
> index 7303b6c..9ed8dfc 100644
> --- a/hw/virtio.h
> +++ b/hw/virtio.h
> @@ -21,7 +21,7 @@
> #include "block.h"
> #include "event_notifier.h"
> #ifdef CONFIG_LINUX
> -#include "9p.h"
> +#include "9pfs/virtio-9p-device.h"
> #endif
>
> /* from Linux's linux/virtio_config.h */
That adds few #ifdef to virtio-pci.c. Is that ok ? I actually moved
that code from virtio-pci.c as a part of
9fe1ebebd0c427fd9b3d1ffffa77a9969d873d93 . Regarding PCI dependency,
I was thinking it would be better for 9p to explicitly state that
dependency. When virtio can support other than pci devices, we would
list then using #ifdef in virtio-9p-device.c That way all 9p device
related details can be found at one place. That is one of the reason
i did 9fe1ebebd0c427fd9b3d1ffffa77a9969d873d93
Part of the above patch would still be needed if we don't want to
apply the full patch above. I have inlined it below.
commit 2cb7289031b2646d6a107610967e90d2320791fa
Author: Aneesh Kumar K.V <address@hidden>
Date: Mon Nov 28 12:23:49 2011 +0530
hw/9pfs: Add qdev.reset callback for virtio-9p-pci device
Add the device reset callback
Signed-off-by: Aneesh Kumar K.V <address@hidden>
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index bba4c54..57dc77c 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -176,7 +176,8 @@ static PCIDeviceInfo virtio_9p_info = {
DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
DEFINE_PROP_END_OF_LIST(),
- }
+ },
+ .qdev.reset = virtio_pci_reset,
};
static void virtio_9p_register_devices(void)
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index ca5923c..07f5861 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -266,7 +266,7 @@ static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy)
proxy->ioeventfd_started = false;
}
-static void virtio_pci_reset(DeviceState *d)
+void virtio_pci_reset(DeviceState *d)
{
VirtIOPCIProxy *proxy = container_of(d, VirtIOPCIProxy, pci_dev.qdev);
virtio_pci_stop_ioeventfd(proxy);
diff --git a/hw/virtio-pci.h b/hw/virtio-pci.h
index f8404de..344c22b 100644
--- a/hw/virtio-pci.h
+++ b/hw/virtio-pci.h
@@ -45,6 +45,7 @@ typedef struct {
} VirtIOPCIProxy;
void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
+void virtio_pci_reset(DeviceState *d);
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0
- [Qemu-devel] [PATCH 0/9] virtio: device configuration cleanup, Paolo Bonzini, 2011/11/24
- [Qemu-devel] [PATCH 5/9] virtio-9p: move property declarations to header file, Paolo Bonzini, 2011/11/24
- [Qemu-devel] [PATCH 6/9] virtio-blk: define VirtIOBlkConf, Paolo Bonzini, 2011/11/24
- [Qemu-devel] [PATCH 7/9] virtio-blk: move property declarations to header file, Paolo Bonzini, 2011/11/24
- [Qemu-devel] [PATCH 8/9] virtio-blk: move BlockConf into VirtIOBlkConf, Paolo Bonzini, 2011/11/24
- [Qemu-devel] [PATCH 9/9] virtio: move conf fields into an anonymous union, Paolo Bonzini, 2011/11/24
- Re: [Qemu-devel] [PATCH 0/9] virtio: device configuration cleanup, Michael S. Tsirkin, 2011/11/28