summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/stmicro
diff options
context:
space:
mode:
authorJose Abreu <Jose.Abreu@synopsys.com>2019-11-14 12:42:46 +0100
committerDavid S. Miller <davem@davemloft.net>2019-11-15 12:25:41 -0800
commit4e4337ccf780978881f8f41c5c30dad626a4a51e (patch)
treea66ec10f18f31634084cbcd272aa79c646bcd22d /drivers/net/ethernet/stmicro
parent09146abebc788a2f133a6eae9cd6dc8c91c05047 (diff)
downloadlinux-4e4337ccf780978881f8f41c5c30dad626a4a51e.tar.bz2
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: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/common.h1
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c7
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 912bbb6515b2..309ea12ea61f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -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
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 7939ef7e23b7..400fbb727fd5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -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)