diff options
Diffstat (limited to 'sys/dev/sf')
| -rw-r--r-- | sys/dev/sf/if_sf.c | 29 |
1 files changed, 2 insertions, 27 deletions
diff --git a/sys/dev/sf/if_sf.c b/sys/dev/sf/if_sf.c index c9eb850..4019e61 100644 --- a/sys/dev/sf/if_sf.c +++ b/sys/dev/sf/if_sf.c @@ -160,7 +160,6 @@ static int sf_setvlan (struct sf_softc *, int, u_int32_t); #endif static u_int8_t sf_read_eeprom (struct sf_softc *, int); -static uint32_t sf_mchash (const uint8_t *); static int sf_miibus_readreg (device_t, int, int); static int sf_miibus_writereg (device_t, int, int, int); @@ -259,30 +258,6 @@ csr_write_4(sc, reg, val) return; } -static u_int32_t -sf_mchash(addr) - const uint8_t *addr; -{ - uint32_t crc, carry; - int idx, bit; - uint8_t data; - - /* Compute CRC for the address value. */ - crc = 0xFFFFFFFF; /* initial value */ - - for (idx = 0; idx < 6; idx++) { - for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) { - carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01); - crc <<= 1; - if (carry) - crc = (crc ^ 0x04c11db6) | carry; - } - } - - /* return the filter bit position */ - return(crc >> 23 & 0x1FF); -} - /* * Copy the address 'mac' into the perfect RX filter entry at * offset 'idx.' The perfect filter only has 16 entries so do @@ -325,12 +300,12 @@ sf_sethash(sc, mac, prio) caddr_t mac; int prio; { - u_int32_t h = 0; + u_int32_t h; if (mac == NULL) return(EINVAL); - h = sf_mchash(mac); + h = ether_crc32_be(mac, ETHER_ADDR_LEN) >> 23; if (prio) { SF_SETBIT(sc, SF_RXFILT_HASH_BASE + SF_RXFILT_HASH_PRIOOFF + |
