[PATCH] sky2: receive queue watermark tweak
This patch makes the receive performance on some systems go from
714MB/s to 941MB/s. It adjusts the watermark of the receive queue
to be lower, thereby avoiding excess hardware flow control. This is
most important on the systems which have little/no additional buffering.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index 7760545..a63f605 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -680,6 +680,7 @@
BMU_FIFO_ENA | BMU_OP_ON,
BMU_WM_DEFAULT = 0x600,
+ BMU_WM_PEX = 0x80,
};
/* Tx BMU Control / Status Registers (Yukon-2) */