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Multicast code isn't quite correct. The RealTek wants the upper six bits

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of the CRC as the multicast hash table bit, not the lower six bits. Plus
we have to flip on all bits in the table for multicast mode.

Pointed out by: Kazushi SUGYO <k-sugyou@nwsl.mesh.ad.jp>
This commit is contained in:
Bill Paul 1999-01-22 15:25:04 +00:00
parent 2ccdfd96be
commit 2008c8087c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=43062
1 changed files with 5 additions and 5 deletions
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10
sys/pci/if_rl.c
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@ -29,7 +29,7 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_rl.c,v 1.20 1999/01/16 20:46:24 wpaul Exp $
* $Id: if_rl.c,v 1.20 1999/01/16 20:46:24 wpaul Exp wpaul $
*/
/*
@ -127,7 +127,7 @@
#ifndef lint
static const char rcsid[] =
"$Id: if_rl.c,v 1.20 1999/01/16 20:46:24 wpaul Exp $";
"$Id: if_rl.c,v 1.20 1999/01/16 20:46:24 wpaul Exp wpaul $";
#endif
/*
@ -587,7 +587,7 @@ static void rl_phy_writereg(sc, reg, data)
}
/*
* Calculate CRC of a multicast group address, return the lower 6 bits.
* Calculate CRC of a multicast group address, return the upper 6 bits.
*/
static u_int8_t rl_calchash(addr)
caddr_t addr;
@ -611,7 +611,7 @@ static u_int8_t rl_calchash(addr)
}
/* return the filter bit position */
return(crc & 0x0000003F);
return(crc >> 26);
}
/*
@ -631,7 +631,7 @@ static void rl_setmulti(sc)
rxfilt = CSR_READ_4(sc, RL_RXCFG);
if (ifp->if_flags & IFF_ALLMULTI) {
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
rxfilt |= RL_RXCFG_RX_MULTI;
CSR_WRITE_4(sc, RL_RXCFG, rxfilt);
CSR_WRITE_4(sc, RL_MAR0, 0xFFFFFFFF);