From f62a23a7cb601fb30c4a8b8a5ba1c6bb7f5148b3 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 9 Jul 2012 14:16:10 +0000 Subject: [PATCH] net: calxedaxgmac: enable rx cut-thru mode Enabling RX cut-thru mode yields better performance as received frames start getting written to memory before a whole frame is received. Signed-off-by: Rob Herring Signed-off-by: David S. Miller --- drivers/net/ethernet/calxeda/xgmac.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index abb8f40ec221..2b4b4f529ab4 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -264,7 +264,7 @@ #define XGMAC_OMR_FEF 0x00000080 /* Forward Error Frames */ #define XGMAC_OMR_DT 0x00000040 /* Drop TCP/IP csum Errors */ #define XGMAC_OMR_RSF 0x00000020 /* RX FIFO Store and Forward */ -#define XGMAC_OMR_RTC 0x00000010 /* RX Threshhold Ctrl */ +#define XGMAC_OMR_RTC_256 0x00000018 /* RX Threshhold Ctrl */ #define XGMAC_OMR_RTC_MASK 0x00000018 /* RX Threshhold Ctrl MASK */ /* XGMAC HW Features Register */ @@ -982,7 +982,8 @@ static int xgmac_hw_init(struct net_device *dev) writel(value, ioaddr + XGMAC_DMA_CONTROL); /* Set the HW DMA mode and the COE */ - writel(XGMAC_OMR_TSF | XGMAC_OMR_RSF | XGMAC_OMR_RFD | XGMAC_OMR_RFA, + writel(XGMAC_OMR_TSF | XGMAC_OMR_RFD | XGMAC_OMR_RFA | + XGMAC_OMR_RTC_256, ioaddr + XGMAC_OMR); /* Reset the MMC counters */ -- 2.20.1