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57407ea44c
All NICs have a cleanup function that, in most cases, zeroes the pointer to the NICState. In some cases, it frees data belonging to the NIC. However, this function is never called except when exiting from QEMU. It is not necessary to NULL pointers and free data here; the right place to do that would be in the device's unrealize function, after calling qemu_del_nic. Zeroing the NIC multiple times is also wrong for multiqueue devices. This cleanup function gets in the way of making the NetClientStates for the NIC hold an object_ref reference to the object, so get rid of it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
153 lines
4.8 KiB
C
153 lines
4.8 KiB
C
/*
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* QEMU NE2000 emulation -- isa bus windup
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/hw.h"
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#include "hw/i386/pc.h"
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#include "hw/isa/isa.h"
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#include "hw/qdev.h"
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#include "net/net.h"
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#include "ne2000.h"
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#include "exec/address-spaces.h"
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#include "qapi/visitor.h"
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#define TYPE_ISA_NE2000 "ne2k_isa"
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#define ISA_NE2000(obj) OBJECT_CHECK(ISANE2000State, (obj), TYPE_ISA_NE2000)
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typedef struct ISANE2000State {
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ISADevice parent_obj;
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uint32_t iobase;
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uint32_t isairq;
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NE2000State ne2000;
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} ISANE2000State;
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static NetClientInfo net_ne2000_isa_info = {
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.type = NET_CLIENT_OPTIONS_KIND_NIC,
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.size = sizeof(NICState),
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.can_receive = ne2000_can_receive,
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.receive = ne2000_receive,
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};
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static const VMStateDescription vmstate_isa_ne2000 = {
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.name = "ne2000",
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.version_id = 2,
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.minimum_version_id = 0,
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.fields = (VMStateField[]) {
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VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
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VMSTATE_END_OF_LIST()
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}
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};
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static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
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{
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ISADevice *isadev = ISA_DEVICE(dev);
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ISANE2000State *isa = ISA_NE2000(dev);
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NE2000State *s = &isa->ne2000;
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ne2000_setup_io(s, DEVICE(isadev), 0x20);
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isa_register_ioport(isadev, &s->io, isa->iobase);
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isa_init_irq(isadev, &s->irq, isa->isairq);
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qemu_macaddr_default_if_unset(&s->c.macaddr);
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ne2000_reset(s);
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s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
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object_get_typename(OBJECT(dev)), dev->id, s);
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qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
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}
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static Property ne2000_isa_properties[] = {
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DEFINE_PROP_UINT32("iobase", ISANE2000State, iobase, 0x300),
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DEFINE_PROP_UINT32("irq", ISANE2000State, isairq, 9),
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DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void isa_ne2000_class_initfn(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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dc->realize = isa_ne2000_realizefn;
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dc->props = ne2000_isa_properties;
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dc->vmsd = &vmstate_isa_ne2000;
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set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
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}
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static void isa_ne2000_get_bootindex(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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ISANE2000State *isa = ISA_NE2000(obj);
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NE2000State *s = &isa->ne2000;
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visit_type_int32(v, &s->c.bootindex, name, errp);
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}
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static void isa_ne2000_set_bootindex(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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ISANE2000State *isa = ISA_NE2000(obj);
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NE2000State *s = &isa->ne2000;
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int32_t boot_index;
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Error *local_err = NULL;
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visit_type_int32(v, &boot_index, name, &local_err);
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if (local_err) {
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goto out;
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}
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/* check whether bootindex is present in fw_boot_order list */
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check_boot_index(boot_index, &local_err);
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if (local_err) {
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goto out;
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}
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/* change bootindex to a new one */
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s->c.bootindex = boot_index;
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out:
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if (local_err) {
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error_propagate(errp, local_err);
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}
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}
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static void isa_ne2000_instance_init(Object *obj)
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{
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object_property_add(obj, "bootindex", "int32",
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isa_ne2000_get_bootindex,
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isa_ne2000_set_bootindex, NULL, NULL, NULL);
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object_property_set_int(obj, -1, "bootindex", NULL);
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}
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static const TypeInfo ne2000_isa_info = {
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.name = TYPE_ISA_NE2000,
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.parent = TYPE_ISA_DEVICE,
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.instance_size = sizeof(ISANE2000State),
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.class_init = isa_ne2000_class_initfn,
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.instance_init = isa_ne2000_instance_init,
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};
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static void ne2000_isa_register_types(void)
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{
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type_register_static(&ne2000_isa_info);
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}
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type_init(ne2000_isa_register_types)
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