uli526x: fix endianness issues in the setup frame

This patch fixes uli526x driver's issues on a PowerPC boards: uli chip
is unable to receive the packets.

It appears that send_frame_filter prepares the setup frame in the
endianness unsafe manner. On a big endian machines we should shift
the address nibble by two bytes.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 18 insertions, 12 deletions

diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c
index 1f077ac9b0e0..2511ca7a12aa 100644
--- a/drivers/net/tulip/uli526x.c
+++ b/drivers/net/tulip/uli526x.c
@@ -1368,6 +1368,12 @@ static void update_cr6(u32 cr6_data, unsigned long ioaddr)
  *      This setup frame initialize ULI526X address filter mode
  */
 
+#ifdef __BIG_ENDIAN
+#define FLT_SHIFT 16
+#else
+#define FLT_SHIFT 0
+#endif
+
 static void send_filter_frame(struct net_device *dev, int mc_cnt)
 {
         struct uli526x_board_info *db = netdev_priv(dev);
@@ -1384,27 +1390,27 @@ static void send_filter_frame(struct net_device *dev, int mc_cnt)
 
         /* Node address */
         addrptr = (u16 *) dev->dev_addr;
-        *suptr++ = addrptr[0];
-        *suptr++ = addrptr[1];
-        *suptr++ = addrptr[2];
+        *suptr++ = addrptr[0] << FLT_SHIFT;
+        *suptr++ = addrptr[1] << FLT_SHIFT;
+        *suptr++ = addrptr[2] << FLT_SHIFT;
 
         /* broadcast address */
-        *suptr++ = 0xffff;
-        *suptr++ = 0xffff;
-        *suptr++ = 0xffff;
+        *suptr++ = 0xffff << FLT_SHIFT;
+        *suptr++ = 0xffff << FLT_SHIFT;
+        *suptr++ = 0xffff << FLT_SHIFT;
 
         /* fit the multicast address */
         for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
                 addrptr = (u16 *) mcptr->dmi_addr;
-                *suptr++ = addrptr[0];
-                *suptr++ = addrptr[1];
-                *suptr++ = addrptr[2];
+                *suptr++ = addrptr[0] << FLT_SHIFT;
+                *suptr++ = addrptr[1] << FLT_SHIFT;
+                *suptr++ = addrptr[2] << FLT_SHIFT;
         }
 
         for (; i<14; i++) {
-                *suptr++ = 0xffff;
-                *suptr++ = 0xffff;
-                *suptr++ = 0xffff;
+                *suptr++ = 0xffff << FLT_SHIFT;
+                *suptr++ = 0xffff << FLT_SHIFT;
+                *suptr++ = 0xffff << FLT_SHIFT;
         }
 
         /* prepare the setup frame */