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[v2] hw/net: convert "dma" property type from ptr to link

Message ID 20170408143639.2524-1-shah.suramya@gmail.com
State New
Headers show

Commit Message

Suramya Shah April 8, 2017, 2:36 p.m. UTC
The lance device needs pointer to ISA DMA device to operate. But according to
qdev-properties.h, properties of pointer type should be avoided.
A link type property is a good substitution.

Changes since v1
 -changed the code in hw/sparc/sun4m.c which uses the device.

Signed-off-by: Suramya Shah <shah.suramya@gmail.com>
---
 hw/net/lance.c   | 8 ++++++--
 hw/sparc/sun4m.c | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

Comments

Peter Maydell April 10, 2017, 8:38 a.m. UTC | #1
On 8 April 2017 at 15:36, Suramya Shah <shah.suramya@gmail.com> wrote:
> The lance device needs pointer to ISA DMA device to operate. But according to
> qdev-properties.h, properties of pointer type should be avoided.
> A link type property is a good substitution.
>
> Changes since v1
>  -changed the code in hw/sparc/sun4m.c which uses the device.
>
> Signed-off-by: Suramya Shah <shah.suramya@gmail.com>
> ---
>  hw/net/lance.c   | 8 ++++++--
>  hw/sparc/sun4m.c | 2 +-
>  2 files changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/hw/net/lance.c b/hw/net/lance.c
> index 573d724..3996b9c 100644
> --- a/hw/net/lance.c
> +++ b/hw/net/lance.c
> @@ -44,6 +44,7 @@
>  #include "pcnet.h"
>  #include "trace.h"
>  #include "sysemu/sysemu.h"
> +#include "qapi/error.h"
>
>  #define TYPE_LANCE "lance"
>  #define SYSBUS_PCNET(obj) \
> @@ -145,10 +146,14 @@ static void lance_instance_init(Object *obj)
>      device_add_bootindex_property(obj, &s->conf.bootindex,
>                                    "bootindex", "/ethernet-phy@0",
>                                    DEVICE(obj), NULL);
> +
> +    object_property_add_link(obj, "dma", TYPE_LANCE,
> +                             (Object **)&d->state.dma_opaque,
> +                             qdev_prop_allow_set_link_before_realize,
> +                             0, &error_abort);
>  }
>
>  static Property lance_properties[] = {
> -    DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque),
>      DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf),
>      DEFINE_PROP_END_OF_LIST(),
>  };
> @@ -164,7 +169,6 @@ static void lance_class_init(ObjectClass *klass, void *data)
>      dc->reset = lance_reset;
>      dc->vmsd = &vmstate_lance;
>      dc->props = lance_properties;
> -    /* Reason: pointer property "dma" */
>      dc->cannot_instantiate_with_device_add_yet = true;

Please don't remove the comment but not the line it refers
to; either the comment needs updating or the cannot_instantiate
setting is no longer correct and needs removing.

thanks
-- PMM
diff mbox

Patch

diff --git a/hw/net/lance.c b/hw/net/lance.c
index 573d724..3996b9c 100644
--- a/hw/net/lance.c
+++ b/hw/net/lance.c
@@ -44,6 +44,7 @@ 
 #include "pcnet.h"
 #include "trace.h"
 #include "sysemu/sysemu.h"
+#include "qapi/error.h"
 
 #define TYPE_LANCE "lance"
 #define SYSBUS_PCNET(obj) \
@@ -145,10 +146,14 @@  static void lance_instance_init(Object *obj)
     device_add_bootindex_property(obj, &s->conf.bootindex,
                                   "bootindex", "/ethernet-phy@0",
                                   DEVICE(obj), NULL);
+
+    object_property_add_link(obj, "dma", TYPE_LANCE,
+                             (Object **)&d->state.dma_opaque,
+                             qdev_prop_allow_set_link_before_realize,
+                             0, &error_abort);
 }
 
 static Property lance_properties[] = {
-    DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque),
     DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf),
     DEFINE_PROP_END_OF_LIST(),
 };
@@ -164,7 +169,6 @@  static void lance_class_init(ObjectClass *klass, void *data)
     dc->reset = lance_reset;
     dc->vmsd = &vmstate_lance;
     dc->props = lance_properties;
-    /* Reason: pointer property "dma" */
     dc->cannot_instantiate_with_device_add_yet = true;
 }
 
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 873cd7d..9b3f5a5 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -336,7 +336,7 @@  static void lance_init(NICInfo *nd, hwaddr leaddr,
 
     dev = qdev_create(NULL, "lance");
     qdev_set_nic_properties(dev, nd);
-    qdev_prop_set_ptr(dev, "dma", dma_opaque);
+    object_property_set_link(OBJECT(dev), OBJECT(dma_opaque), "dma", NULL);
     qdev_init_nofail(dev);
     s = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(s, 0, leaddr);