diff options
Diffstat (limited to 'sys/dev/vr/if_vr.c')
| -rw-r--r-- | sys/dev/vr/if_vr.c | 31 |
1 files changed, 2 insertions, 29 deletions
diff --git a/sys/dev/vr/if_vr.c b/sys/dev/vr/if_vr.c index 9566c6df463c..8604ff2d29bd 100644 --- a/sys/dev/vr/if_vr.c +++ b/sys/dev/vr/if_vr.c @@ -160,7 +160,6 @@ static int vr_miibus_writereg (device_t, int, int, int); static void vr_miibus_statchg (device_t); static void vr_setcfg (struct vr_softc *, int); -static uint32_t vr_mchash (const uint8_t *); static void vr_setmulti (struct vr_softc *); static void vr_reset (struct vr_softc *); static int vr_list_rx_init (struct vr_softc *); @@ -562,33 +561,6 @@ vr_miibus_statchg(dev) } /* - * Calculate CRC of a multicast group address, return the lower 6 bits. - */ -static u_int32_t -vr_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 >> 26) & 0x0000003F); -} - -/* * Program the 64-bit multicast hash filter. */ static void @@ -622,7 +594,8 @@ vr_setmulti(sc) TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; - h = vr_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + h = ether_crc32_be(LLADDR((struct sockaddr_dl *) + ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; if (h < 32) hashes[0] |= (1 << h); else |