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Commit 58933c64 authored by Dave Liu's avatar Dave Liu Committed by David S. Miller
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ucc_geth: Fix the wrong the Rx/Tx FIFO size 



current the Rx/Tx FIFO size settings cause problem
when four UEC ethernets work simultaneously.

eg: GETH1, UEM-J15, GETH2, UEC-J5 on 8569MDS board

 $ ifconfig eth0 10.193.20.166
 $ ifconfig eth1 10.193.20.167
 $ ifconfig eth2 10.193.20.168
 then
 $ ifconfig eth3 10.193.20.169

The fourth ethernet will cause all of interface broken,
you cann't ping successfully any more.
The patch fix this issue for MPC8569 Rev1.0 and Rev2.0

Signed-off-by: default avatarDave Liu <daveliu@freescale.com>
Acked-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d3af9dd0

drivers/net/ucc_geth.h

+7 −6
Original line number Diff line number Diff line
@@ -838,13 +838,13 @@ struct ucc_geth_hardware_statistics { 
							   using the maximum is

							   easier */

#define UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT	32

#define UCC_GETH_SCHEDULER_ALIGNMENT		4	/* This is a guess */

#define UCC_GETH_SCHEDULER_ALIGNMENT		8	/* This is a guess */

#define UCC_GETH_TX_STATISTICS_ALIGNMENT	4	/* This is a guess */

#define UCC_GETH_RX_STATISTICS_ALIGNMENT	4	/* This is a guess */

#define UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT	64

#define UCC_GETH_RX_BD_QUEUES_ALIGNMENT		8	/* This is a guess */

#define UCC_GETH_RX_PREFETCHED_BDS_ALIGNMENT	128	/* This is a guess */

#define UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT 4	/* This

#define UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT 8	/* This

									   is a

									   guess

									 */
@@ -899,16 +899,17 @@ struct ucc_geth_hardware_statistics { 
#define UCC_GETH_UTFS_INIT                      512	/* Tx virtual FIFO size

							 */

#define UCC_GETH_UTFET_INIT                     256	/* 1/2 utfs */

#define UCC_GETH_UTFTT_INIT                     128

#define UCC_GETH_UTFTT_INIT                     512

/* Gigabit Ethernet (1000 Mbps) */

#define UCC_GETH_URFS_GIGA_INIT                 4096/*2048*/	/* Rx virtual

								   FIFO size */

#define UCC_GETH_URFET_GIGA_INIT                2048/*1024*/	/* 1/2 urfs */

#define UCC_GETH_URFSET_GIGA_INIT               3072/*1536*/	/* 3/4 urfs */

#define UCC_GETH_UTFS_GIGA_INIT                 8192/*2048*/	/* Tx virtual

#define UCC_GETH_UTFS_GIGA_INIT                 4096/*2048*/	/* Tx virtual

								   FIFO size */

#define UCC_GETH_UTFET_GIGA_INIT                2048/*1024*/	/* 1/2 utfs */

#define UCC_GETH_UTFTT_GIGA_INIT                4096/*0x40*/	/* Tx virtual

								   FIFO size */

#define UCC_GETH_UTFET_GIGA_INIT                4096/*1024*/	/* 1/2 utfs */

#define UCC_GETH_UTFTT_GIGA_INIT                0x400/*0x40*/	/* */



#define UCC_GETH_REMODER_INIT                   0	/* bits that must be

							   set */