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new network emulation

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1622 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-11-15 22:16:05 +00:00
parent 868bfe2b2b
commit 7c9d8e07e1
7 changed files with 927 additions and 444 deletions
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50
hw/lance.c
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@ -154,7 +154,8 @@ struct lance_init_block {
#define LEDMA_MAXADDR (LEDMA_REGS * 4 - 1)
typedef struct LANCEState {
NetDriverState *nd;
VLANClientState *vc;
uint8_t macaddr[6]; /* init mac address */
uint32_t leptr;
uint16_t addr;
uint16_t regs[LE_NREGS];
@ -169,7 +170,7 @@ static void lance_send(void *opaque);
static void lance_reset(void *opaque)
{
LANCEState *s = opaque;
memcpy(s->phys, s->nd->macaddr, 6);
memcpy(s->phys, s->macaddr, 6);
s->rxptr = 0;
s->txptr = 0;
memset(s->regs, 0, LE_NREGS * 2);
@ -280,31 +281,6 @@ static CPUWriteMemoryFunc *lance_mem_write[3] = {
};
/* return the max buffer size if the LANCE can receive more data */
static int lance_can_receive(void *opaque)
{
LANCEState *s = opaque;
uint32_t dmaptr = s->leptr + s->ledmaregs[3];
struct lance_init_block *ib;
int i;
uint8_t temp8;
if ((s->regs[LE_CSR0] & LE_C0_STOP) == LE_C0_STOP)
return 0;
ib = (void *) iommu_translate(dmaptr);
for (i = 0; i < RX_RING_SIZE; i++) {
cpu_physical_memory_read((uint32_t)&ib->brx_ring[i].rmd1_bits, (void *) &temp8, 1);
if (temp8 == (LE_R1_OWN)) {
DPRINTF("can receive %d\n", RX_BUFF_SIZE);
return RX_BUFF_SIZE;
}
}
DPRINTF("cannot receive\n");
return 0;
}
#define MIN_BUF_SIZE 60
static void lance_receive(void *opaque, const uint8_t *buf, int size)
@ -368,7 +344,7 @@ static void lance_send(void *opaque)
temp16 = (~temp16) + 1;
cpu_physical_memory_read((uint32_t)&ib->tx_buf[i], pkt_buf, temp16);
DPRINTF("sending packet, len %d\n", temp16);
qemu_send_packet(s->nd, pkt_buf, temp16);
qemu_send_packet(s->vc, pkt_buf, temp16);
temp8 = LE_T1_POK;
cpu_physical_memory_write((uint32_t)&ib->btx_ring[i].tmd1_bits, (void *) &temp8, 1);
s->txptr = (s->txptr + 1) & TX_RING_MOD_MASK;
@ -443,7 +419,7 @@ static int lance_load(QEMUFile *f, void *opaque, int version_id)
return 0;
}
void lance_init(NetDriverState *nd, int irq, uint32_t leaddr, uint32_t ledaddr)
void lance_init(NICInfo *nd, int irq, uint32_t leaddr, uint32_t ledaddr)
{
LANCEState *s;
int lance_io_memory, ledma_io_memory;
@ -452,7 +428,6 @@ void lance_init(NetDriverState *nd, int irq, uint32_t leaddr, uint32_t ledaddr)
if (!s)
return;
s->nd = nd;
s->irq = irq;
lance_io_memory = cpu_register_io_memory(0, lance_mem_read, lance_mem_write, s);
@ -461,8 +436,21 @@ void lance_init(NetDriverState *nd, int irq, uint32_t leaddr, uint32_t ledaddr)
ledma_io_memory = cpu_register_io_memory(0, ledma_mem_read, ledma_mem_write, s);
cpu_register_physical_memory(ledaddr, 16, ledma_io_memory);
memcpy(s->macaddr, nd->macaddr, 6);
lance_reset(s);
qemu_add_read_packet(nd, lance_can_receive, lance_receive, s);
s->vc = qemu_new_vlan_client(nd->vlan, lance_receive, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
"lance macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
s->macaddr[0],
s->macaddr[1],
s->macaddr[2],
s->macaddr[3],
s->macaddr[4],
s->macaddr[5]);
register_savevm("lance", leaddr, 1, lance_save, lance_load, s);
qemu_register_reset(lance_reset, s);
}