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Subject[PATCH 5.4 67/73] r8169: simplify setting PCI_EXP_DEVCTL_NOSNOOP_EN
Date
From: Heiner Kallweit <hkallweit1@gmail.com>

[ Upstream commit e0bbe7cbb3c5ff72d680993edf89db2391e80d5d ]

r8168b_0_hw_jumbo_enable() and r8168b_0_hw_jumbo_disable() both do the
same and just set PCI_EXP_DEVCTL_NOSNOOP_EN. We can simplify the code
by moving this setting for RTL8168B to rtl_hw_start_8168().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/realtek/r8169_main.c | 34 +++++++----------------
1 file changed, 10 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index fb11561a4f17..5ca28985c86b 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4083,29 +4083,13 @@ static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
}

-static void r8168b_0_hw_jumbo_enable(struct rtl8169_private *tp)
-{
- pcie_capability_set_word(tp->pci_dev, PCI_EXP_DEVCTL,
- PCI_EXP_DEVCTL_NOSNOOP_EN);
-}
-
-static void r8168b_0_hw_jumbo_disable(struct rtl8169_private *tp)
-{
- pcie_capability_set_word(tp->pci_dev, PCI_EXP_DEVCTL,
- PCI_EXP_DEVCTL_NOSNOOP_EN);
-}
-
static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
{
- r8168b_0_hw_jumbo_enable(tp);
-
RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
}

static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
{
- r8168b_0_hw_jumbo_disable(tp);
-
RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
}

@@ -4113,9 +4097,6 @@ static void rtl_hw_jumbo_enable(struct rtl8169_private *tp)
{
rtl_unlock_config_regs(tp);
switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_11:
- r8168b_0_hw_jumbo_enable(tp);
- break;
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
r8168b_1_hw_jumbo_enable(tp);
@@ -4139,9 +4120,6 @@ static void rtl_hw_jumbo_disable(struct rtl8169_private *tp)
{
rtl_unlock_config_regs(tp);
switch (tp->mac_version) {
- case RTL_GIGA_MAC_VER_11:
- r8168b_0_hw_jumbo_disable(tp);
- break;
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
r8168b_1_hw_jumbo_disable(tp);
@@ -5406,10 +5384,18 @@ static void rtl_hw_start_8125(struct rtl8169_private *tp)

static void rtl_hw_start_8168(struct rtl8169_private *tp)
{
- if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
- tp->mac_version == RTL_GIGA_MAC_VER_16)
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_12:
+ case RTL_GIGA_MAC_VER_13:
+ case RTL_GIGA_MAC_VER_16:
+ case RTL_GIGA_MAC_VER_17:
pcie_capability_set_word(tp->pci_dev, PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_NOSNOOP_EN);
+ break;
+ default:
+ break;
+ }

if (rtl_is_8168evl_up(tp))
RTL_W8(tp, MaxTxPacketSize, EarlySize);
--
2.30.2


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