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.TH "SIS900_MCAST_BITNR" "" "06 October 2005" "" ""

.SH NAME
sis900_mcast_bitnr \- compute hashtable index
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
u16 sis900_mcast_bitnr  (u8 * \fIaddr\fB, u8 \fIrevision\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIaddr\fB\fR
multicast address
.TP
\fB\fIrevision\fB\fR
revision id of chip
.SH "DESCRIPTION"
.PP
SiS 900 uses the most sigificant 7 bits to index a 128 bits multicast
hash table, which makes this function a little bit different from other drivers
SiS 900 B0 & 635 M/B uses the most significat 8 bits to index 256 bits
multicast hash table.