Revision 69f3ce78
| b/hw/eepro100.c | ||
|---|---|---|
| 322 | 322 |
0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, |
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}; |
| 324 | 324 |
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#define POLYNOMIAL 0x04c11db6 |
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static E100PCIDeviceInfo *eepro100_get_class(EEPRO100State *s); |
| 326 | 328 |
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/* From FreeBSD (locally modified). */ |
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static unsigned e100_compute_mcast_idx(const uint8_t *ep) |
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{
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uint32_t crc; |
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int carry, i, j; |
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uint8_t b; |
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crc = 0xffffffff; |
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for (i = 0; i < 6; i++) {
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b = *ep++; |
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for (j = 0; j < 8; j++) {
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carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); |
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crc <<= 1; |
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b >>= 1; |
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if (carry) {
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crc = ((crc ^ POLYNOMIAL) | carry); |
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} |
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} |
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} |
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return (crc & BITS(7, 2)) >> 2; |
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} |
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/* Read a 16 bit control/status (CSR) register. */ |
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static uint16_t e100_read_reg2(EEPRO100State *s, E100RegisterOffset addr) |
| 329 | 353 |
{
|
| ... | ... | |
| 823 | 847 |
uint8_t multicast_addr[6]; |
| 824 | 848 |
pci_dma_read(&s->dev, s->cb_address + 10 + i, multicast_addr, 6); |
| 825 | 849 |
TRACE(OTHER, logout("multicast entry %s\n", nic_dump(multicast_addr, 6)));
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unsigned mcast_idx = compute_mcast_idx(multicast_addr); |
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unsigned mcast_idx = e100_compute_mcast_idx(multicast_addr);
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assert(mcast_idx < 64); |
| 828 | 852 |
s->mult[mcast_idx >> 3] |= (1 << (mcast_idx & 7)); |
| 829 | 853 |
} |
| ... | ... | |
| 1650 | 1674 |
if (s->configuration[21] & BIT(3)) {
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| 1651 | 1675 |
/* Multicast all bit is set, receive all multicast frames. */ |
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} else {
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unsigned mcast_idx = compute_mcast_idx(buf); |
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unsigned mcast_idx = e100_compute_mcast_idx(buf);
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assert(mcast_idx < 64); |
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if (s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))) {
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| 1656 | 1680 |
/* Multicast frame is allowed in hash table. */ |
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