Commit 4e4337cc authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: Setup a default RX Coalesce value instead of the minimum 



For performance reasons, sometimes using the minimum RX Coalesce value
is not optimal. Lets setup a default value that is optimal in most of
the use cases.

Signed-off-by: default avatarJose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 09146abe

drivers/net/ethernet/stmicro/stmmac/common.h

+1 −0
Original line number Diff line number Diff line
@@ -248,6 +248,7 @@ struct stmmac_safety_stats { 
/* Max/Min RI Watchdog Timer count value */

#define MAX_DMA_RIWT		0xff

#define MIN_DMA_RIWT		0x10

#define DEF_DMA_RIWT		0xa0

/* Tx coalesce parameters */

#define STMMAC_COAL_TX_TIMER	1000

#define STMMAC_MAX_COAL_TX_TICK	100000

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+4 −3
Original line number Diff line number Diff line
@@ -2605,9 +2605,10 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) 
	priv->tx_lpi_timer = STMMAC_DEFAULT_TWT_LS;



	if (priv->use_riwt) {

		ret = stmmac_rx_watchdog(priv, priv->ioaddr, MIN_DMA_RIWT, rx_cnt);

		if (!ret)

			priv->rx_riwt = MIN_DMA_RIWT;

		if (!priv->rx_riwt)

			priv->rx_riwt = DEF_DMA_RIWT;



		ret = stmmac_rx_watchdog(priv, priv->ioaddr, priv->rx_riwt, rx_cnt);

	}



	if (priv->hw->pcs)

CRA Git | Maintained and supported by SUSTech CRA and CCSE