qemu/hw/net/ne2000-isa.c
Eric Blake f394b2e20d qapi: Change Netdev into a flat union
This is a mostly-mechanical conversion that creates a new flat
union 'Netdev' QAPI type that covers all the branches of the
former 'NetClientOptions' simple union, where the branches are
now listed in a new 'NetClientDriver' enum rather than generated
from the simple union.  The existence of a flat union has no
change to the command line syntax accepted for new code, and
will make it possible for a future patch to switch the QMP
command to parse a boxed union for no change to valid QMP; but
it does have some ripple effect on the C code when dealing with
the new types.

While making the conversion, note that the 'NetLegacy' type
remains unchanged: it applies only to legacy command line options,
and will not be ported to QMP, so it should remain a wrapper
around a simple union; to avoid confusion, the type named
'NetClientOptions' is now gone, and we introduce 'NetLegacyOptions'
in its place.  Then, in the C code, we convert from NetLegacy to
Netdev as soon as possible, so that the bulk of the net stack
only has to deal with one QAPI type, not two.  Note that since
the old legacy code always rejected 'hubport', we can just omit
that branch from the new 'NetLegacyOptions' simple union.

Based on an idea originally by Zoltán Kővágó <DirtY.iCE.hu@gmail.com>:
Message-Id: <01a527fbf1a5de880091f98cf011616a78adeeee.1441627176.git.DirtY.iCE.hu@gmail.com>
although the sed script in that patch no longer applies due to
other changes in the tree since then, and I also did some manual
cleanups (such as fixing whitespace to keep checkpatch happy).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1468468228-27827-13-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Fixup from Eric squashed in]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-07-19 20:18:02 +02:00

154 lines
4.8 KiB
C

/*
* QEMU NE2000 emulation -- isa bus windup
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/i386/pc.h"
#include "hw/isa/isa.h"
#include "hw/qdev.h"
#include "net/net.h"
#include "ne2000.h"
#include "exec/address-spaces.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#define TYPE_ISA_NE2000 "ne2k_isa"
#define ISA_NE2000(obj) OBJECT_CHECK(ISANE2000State, (obj), TYPE_ISA_NE2000)
typedef struct ISANE2000State {
ISADevice parent_obj;
uint32_t iobase;
uint32_t isairq;
NE2000State ne2000;
} ISANE2000State;
static NetClientInfo net_ne2000_isa_info = {
.type = NET_CLIENT_DRIVER_NIC,
.size = sizeof(NICState),
.receive = ne2000_receive,
};
static const VMStateDescription vmstate_isa_ne2000 = {
.name = "ne2000",
.version_id = 2,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
VMSTATE_END_OF_LIST()
}
};
static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
{
ISADevice *isadev = ISA_DEVICE(dev);
ISANE2000State *isa = ISA_NE2000(dev);
NE2000State *s = &isa->ne2000;
ne2000_setup_io(s, DEVICE(isadev), 0x20);
isa_register_ioport(isadev, &s->io, isa->iobase);
isa_init_irq(isadev, &s->irq, isa->isairq);
qemu_macaddr_default_if_unset(&s->c.macaddr);
ne2000_reset(s);
s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
object_get_typename(OBJECT(dev)), dev->id, s);
qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
}
static Property ne2000_isa_properties[] = {
DEFINE_PROP_UINT32("iobase", ISANE2000State, iobase, 0x300),
DEFINE_PROP_UINT32("irq", ISANE2000State, isairq, 9),
DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
DEFINE_PROP_END_OF_LIST(),
};
static void isa_ne2000_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = isa_ne2000_realizefn;
dc->props = ne2000_isa_properties;
dc->vmsd = &vmstate_isa_ne2000;
set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
}
static void isa_ne2000_get_bootindex(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
ISANE2000State *isa = ISA_NE2000(obj);
NE2000State *s = &isa->ne2000;
visit_type_int32(v, name, &s->c.bootindex, errp);
}
static void isa_ne2000_set_bootindex(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
ISANE2000State *isa = ISA_NE2000(obj);
NE2000State *s = &isa->ne2000;
int32_t boot_index;
Error *local_err = NULL;
visit_type_int32(v, name, &boot_index, &local_err);
if (local_err) {
goto out;
}
/* check whether bootindex is present in fw_boot_order list */
check_boot_index(boot_index, &local_err);
if (local_err) {
goto out;
}
/* change bootindex to a new one */
s->c.bootindex = boot_index;
out:
error_propagate(errp, local_err);
}
static void isa_ne2000_instance_init(Object *obj)
{
object_property_add(obj, "bootindex", "int32",
isa_ne2000_get_bootindex,
isa_ne2000_set_bootindex, NULL, NULL, NULL);
object_property_set_int(obj, -1, "bootindex", NULL);
}
static const TypeInfo ne2000_isa_info = {
.name = TYPE_ISA_NE2000,
.parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(ISANE2000State),
.class_init = isa_ne2000_class_initfn,
.instance_init = isa_ne2000_instance_init,
};
static void ne2000_isa_register_types(void)
{
type_register_static(&ne2000_isa_info);
}
type_init(ne2000_isa_register_types)