Hi,

RTL8139 interfaces cannot receive multicast packets on big-endian
machines. Tested kernel version is 2.4.19pre6. Both
driver/net/8139too.c and driver/net/8139cp.c have this problem.

These drivers have unnecessary byte-swap codes in their multicast
setup procedure. IPv6 networking on big-endian machines is deeply
affected because multicast packets are used to propagate routing
informations.

Applying the following paches fixes this problem.

--- ./drivers/net/8139cp.c-	Wed Apr 10 05:42:41 2002
+++ ./drivers/net/8139cp.c	Sat Apr 13 22:15:31 2002
@@ -812,7 +812,7 @@
 		     i++, mclist = mclist->next) {
 			int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
 
-			mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
+			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
 			rx_mode |= AcceptMulticast;
 		}
 	}
--- ./drivers/net/8139too.c-	Wed Apr 10 05:43:48 2002
+++ ./drivers/net/8139too.c	Sat Apr 13 21:52:09 2002
@@ -2430,7 +2430,7 @@
 		     i++, mclist = mclist->next) {
 			int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
 
-			mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
+			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
 			rx_mode |= AcceptMulticast;
 		}
 	}

Naoki Hamada
nao@tom-yam.or.jp
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