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Message-Id: <101bfd570686485c59a325f65c5d0328c6cd91dd.1706601050.git.siyanteng@loongson.cn>
Date: Tue, 30 Jan 2024 16:49:15 +0800
From: Yanteng Si <siyanteng@...ngson.cn>
To: andrew@...n.ch,
hkallweit1@...il.com,
peppe.cavallaro@...com,
alexandre.torgue@...s.st.com,
joabreu@...opsys.com,
fancer.lancer@...il.com
Cc: Yanteng Si <siyanteng@...ngson.cn>,
Jose.Abreu@...opsys.com,
chenhuacai@...ngson.cn,
linux@...linux.org.uk,
guyinggang@...ngson.cn,
netdev@...r.kernel.org,
chris.chenfeiyang@...il.com
Subject: [PATCH net-next v8 10/11] net: stmmac: dwmac-loongson: Disable flow control for GMAC
Loongson GMAC does not support Flow Control feature. Set flags to
disable it.
Signed-off-by: Yanteng Si <siyanteng@...ngson.cn>
Signed-off-by: Feiyang Chen <chenfeiyang@...ngson.cn>
Signed-off-by: Yinggang Gu <guyinggang@...ngson.cn>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 1 +
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++---
include/linux/stmmac.h | 1 +
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 1753a3c46b77..b78a73ea748b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -335,6 +335,7 @@ static int loongson_gmac_config(struct pci_dev *pdev,
struct stmmac_resources *res,
struct device_node *np)
{
+ plat->flags |= STMMAC_FLAG_DISABLE_FLOW_CONTROL;
return 0;
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 3aa862269eb0..8d676cbfba1e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1237,9 +1237,9 @@ static int stmmac_phy_setup(struct stmmac_priv *priv)
xpcs_get_interfaces(priv->hw->xpcs,
priv->phylink_config.supported_interfaces);
- priv->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
- MAC_10FD | MAC_100FD |
- MAC_1000FD;
+ priv->phylink_config.mac_capabilities = MAC_10FD | MAC_100FD | MAC_1000FD;
+ if (!(priv->plat->flags & STMMAC_FLAG_DISABLE_FLOW_CONTROL))
+ priv->phylink_config.mac_capabilities |= MAC_ASYM_PAUSE | MAC_SYM_PAUSE;
stmmac_set_half_duplex(priv);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 197f6f914104..832cd8cd688f 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -223,6 +223,7 @@ struct dwmac4_addrs {
#define STMMAC_FLAG_HWTSTAMP_CORRECT_LATENCY BIT(12)
#define STMMAC_FLAG_DISABLE_FORCE_1000 BIT(13)
#define STMMAC_FLAG_DISABLE_HALF_DUPLEX BIT(14)
+#define STMMAC_FLAG_DISABLE_FLOW_CONTROL BIT(15)
struct plat_stmmacenet_data {
int bus_id;
--
2.31.4
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