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Use the common ether_crc32_le() function for multicast hash.

This commit is contained in:
tsutsui 2009-09-18 14:40:49 +00:00
parent df6a834f16
commit 6dce7b7053
1 changed files with 6 additions and 21 deletions
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27
sys/dev/sbus/be.c
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@ -1,4 +1,4 @@
/* $NetBSD: be.c,v 1.73 2009/09/18 14:35:11 tsutsui Exp $ */
/* $NetBSD: be.c,v 1.74 2009/09/18 14:40:49 tsutsui Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -57,7 +57,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: be.c,v 1.73 2009/09/18 14:35:11 tsutsui Exp $");
__KERNEL_RCSID(0, "$NetBSD: be.c,v 1.74 2009/09/18 14:40:49 tsutsui Exp $");
#include "opt_ddb.h"
#include "opt_inet.h"
@ -1151,11 +1151,9 @@ be_mcreset(struct be_softc *sc)
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
bus_space_tag_t t = sc->sc_bustag;
bus_space_handle_t br = sc->sc_br;
uint32_t v;
uint32_t crc;
uint16_t hash[4];
uint8_t octet;
uint32_t v;
int i, j;
struct ether_multi *enm;
struct ether_multistep step;
@ -1191,23 +1189,10 @@ be_mcreset(struct be_softc *sc)
goto chipit;
}
crc = 0xffffffff;
for (i = 0; i < ETHER_ADDR_LEN; i++) {
octet = enm->enm_addrlo[i];
for (j = 0; j < 8; j++) {
if ((crc & 1) ^ (octet & 1)) {
crc >>= 1;
crc ^= MC_POLY_LE;
}
else
crc >>= 1;
octet >>= 1;
}
}
crc = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN);
/* Just want the 6 most significant bits. */
crc >>= 26;
hash[crc >> 4] |= 1 << (crc & 0xf);
ETHER_NEXT_MULTI(step, enm);
}