[PATCH 2/21]: powerpc/cell spidernet burst alignment patch.

Linas Vepstas linas at austin.ibm.com
Wed Oct 11 06:57:26 EST 2006


This patch increases the Burst Address alignment from 64 to 1024 in the
Spidernet driver. This improves transmit performance for large packets.

From: James K Lewis <jklewis at us.ibm.com>
Signed-off-by: James K Lewis <jklewis at us.ibm.com>
Signed-off-by: Linas Vepstas <linas at austin.ibm.com>
Acked-by: Arnd Bergmann <arnd at arndb.de>

----
 drivers/net/spider_net.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.18-mm2/drivers/net/spider_net.h
===================================================================
--- linux-2.6.18-mm2.orig/drivers/net/spider_net.h	2006-10-10 12:20:07.000000000 -0500
+++ linux-2.6.18-mm2/drivers/net/spider_net.h	2006-10-10 12:20:55.000000000 -0500
@@ -211,7 +211,7 @@ extern char spider_net_driver_name[];
 #define SPIDER_NET_DMA_RX_FEND_VALUE	0x00030003
 /* to set TX_DMA_EN */
 #define SPIDER_NET_TX_DMA_EN		0x80000000
-#define SPIDER_NET_GDTDCEIDIS		0x00000002
+#define SPIDER_NET_GDTDCEIDIS		0x00000302
 #define SPIDER_NET_DMA_TX_VALUE		SPIDER_NET_TX_DMA_EN | \
 					SPIDER_NET_GDTDCEIDIS
 #define SPIDER_NET_DMA_TX_FEND_VALUE	0x00030003



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