[PATCH] allow rx of the maximum sized VLAN tagged packets

Patch enables EMAC to receive maximum sized VLAN tagged packets.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/ibm_emac/ibm_emac.h

@@ -98,7 +98,7 @@ typedef struct emac_regs {
 #endif				/* CONFIG_IBM_EMAC4 */
 #define EMAC_M1_BASE			(EMAC_M1_TX_FIFO_2K | \
 					EMAC_M1_APP | \
-					EMAC_M1_TR)
+					EMAC_M1_TR | EMAC_M1_VLE)
 
 /* Transmit Mode Register 0 */
 #define EMAC_TMR0_GNP0			0x80000000

drivers/net/ibm_emac/ibm_emac_core.c

@@ -1363,6 +1363,9 @@ static void emac_reset_configure(struct ocp_enet_private *fep)
 
 	/* set frame gap */
 	out_be32(&emacp->em0ipgvr, CONFIG_IBM_EMAC_FGAP);
+	
+	/* set VLAN Tag Protocol Identifier */
+	out_be32(&emacp->em0vtpid, 0x8100);
 
 	/* Init ring buffers */
 	emac_init_rings(fep->ndev);