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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>
This commit is contained in:
Anton Vorontsov 2008-04-29 19:53:18 +04:00 committed by Jeff Garzik
parent afd8e39919
commit e284e5c660
1 changed files with 18 additions and 12 deletions
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30
drivers/net/tulip/uli526x.c
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@ -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 */