diff options
author | naddy <naddy@FreeBSD.org> | 2004-06-09 14:34:04 +0000 |
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committer | naddy <naddy@FreeBSD.org> | 2004-06-09 14:34:04 +0000 |
commit | 03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1 (patch) | |
tree | 63c1a8adb963adf2b159557569195cbc8c219d33 /sys/dev/bge | |
parent | d57aeb149e038b4931b3859597fe80119588eebc (diff) | |
download | FreeBSD-src-03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1.zip FreeBSD-src-03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1.tar.gz |
Replace handrolled CRC calculation with ether_crc32_[lb]e().
Diffstat (limited to 'sys/dev/bge')
-rw-r--r-- | sys/dev/bge/if_bge.c | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/sys/dev/bge/if_bge.c b/sys/dev/bge/if_bge.c index 835e84e..0cc270c 100644 --- a/sys/dev/bge/if_bge.c +++ b/sys/dev/bge/if_bge.c @@ -211,7 +211,6 @@ static void bge_ifmedia_sts (struct ifnet *, struct ifmediareq *); static u_int8_t bge_eeprom_getbyte (struct bge_softc *, int, u_int8_t *); static int bge_read_eeprom (struct bge_softc *, caddr_t, int, int); -static uint32_t bge_mchash (const uint8_t *); static void bge_setmulti (struct bge_softc *); static void bge_handle_events (struct bge_softc *); @@ -1133,27 +1132,6 @@ bge_init_tx_ring(sc) return(0); } -#define BGE_POLY 0xEDB88320 - -static uint32_t -bge_mchash(addr) - const uint8_t *addr; -{ - uint32_t crc; - 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) - crc = (crc >> 1) ^ (((crc ^ data) & 1) ? BGE_POLY : 0); - } - - return(crc & 0x7F); -} - static void bge_setmulti(sc) struct bge_softc *sc; @@ -1181,7 +1159,8 @@ bge_setmulti(sc) TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; - h = bge_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + h = ether_crc32_le(LLADDR((struct sockaddr_dl *) + ifma->ifma_addr), ETHER_ADDR_LEN) & 0x7F; hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); } |