Update lnkst on link state changes so that guests can obtain this information via reading back the LED output pin. Works for Linux but not for guests that depend on the missing PHY. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
159 lines
4.7 KiB
C
159 lines
4.7 KiB
C
/*
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* QEMU AMD PC-Net II (Am79C970A) emulation
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*
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* Copyright (c) 2004 Antony T Curtis
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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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/* This software was written to be compatible with the specification:
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* AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
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* AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000
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*/
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/*
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* On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also
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* produced as NCR89C100. See
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* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt
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* and
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* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt
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*/
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#include "sysbus.h"
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#include "net.h"
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#include "qemu-timer.h"
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#include "qemu_socket.h"
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#include "sun4m.h"
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#include "pcnet.h"
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#include "trace.h"
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typedef struct {
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SysBusDevice busdev;
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PCNetState state;
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} SysBusPCNetState;
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static void parent_lance_reset(void *opaque, int irq, int level)
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{
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SysBusPCNetState *d = opaque;
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if (level)
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pcnet_h_reset(&d->state);
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}
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static void lance_mem_write(void *opaque, target_phys_addr_t addr,
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uint64_t val, unsigned size)
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{
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SysBusPCNetState *d = opaque;
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trace_lance_mem_writew(addr, val & 0xffff);
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pcnet_ioport_writew(&d->state, addr, val & 0xffff);
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}
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static uint64_t lance_mem_read(void *opaque, target_phys_addr_t addr,
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unsigned size)
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{
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SysBusPCNetState *d = opaque;
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uint32_t val;
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val = pcnet_ioport_readw(&d->state, addr);
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trace_lance_mem_readw(addr, val & 0xffff);
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return val & 0xffff;
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}
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static const MemoryRegionOps lance_mem_ops = {
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.read = lance_mem_read,
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.write = lance_mem_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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.valid = {
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.min_access_size = 2,
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.max_access_size = 2,
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},
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};
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static void lance_cleanup(VLANClientState *nc)
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{
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PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque;
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pcnet_common_cleanup(d);
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}
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static NetClientInfo net_lance_info = {
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.type = NET_CLIENT_TYPE_NIC,
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.size = sizeof(NICState),
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.can_receive = pcnet_can_receive,
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.receive = pcnet_receive,
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.link_status_changed = pcnet_set_link_status,
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.cleanup = lance_cleanup,
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};
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static const VMStateDescription vmstate_lance = {
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.name = "pcnet",
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.version_id = 3,
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.minimum_version_id = 2,
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.minimum_version_id_old = 2,
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.fields = (VMStateField []) {
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VMSTATE_STRUCT(state, SysBusPCNetState, 0, vmstate_pcnet, PCNetState),
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VMSTATE_END_OF_LIST()
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}
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};
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static int lance_init(SysBusDevice *dev)
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{
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SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev);
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PCNetState *s = &d->state;
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memory_region_init_io(&s->mmio, &lance_mem_ops, d, "lance-mmio", 4);
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qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1);
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sysbus_init_mmio_region(dev, &s->mmio);
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sysbus_init_irq(dev, &s->irq);
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s->phys_mem_read = ledma_memory_read;
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s->phys_mem_write = ledma_memory_write;
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return pcnet_common_init(&dev->qdev, s, &net_lance_info);
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}
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static void lance_reset(DeviceState *dev)
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{
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SysBusPCNetState *d = DO_UPCAST(SysBusPCNetState, busdev.qdev, dev);
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pcnet_h_reset(&d->state);
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}
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static SysBusDeviceInfo lance_info = {
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.init = lance_init,
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.qdev.name = "lance",
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.qdev.fw_name = "ethernet",
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.qdev.size = sizeof(SysBusPCNetState),
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.qdev.reset = lance_reset,
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.qdev.vmsd = &vmstate_lance,
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.qdev.props = (Property[]) {
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DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque),
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DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf),
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DEFINE_PROP_END_OF_LIST(),
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}
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};
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static void lance_register_devices(void)
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{
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sysbus_register_withprop(&lance_info);
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}
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device_init(lance_register_devices)
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