From 5e00e16cb98935bcf06f51931876d898c226f65c Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sat, 9 Jan 2021 23:01:18 +0100
Subject: [PATCH] r8169: tweak max read request size for newer chips also in
jumbo mtu mode
So far we don't increase the max read request size if we switch to
jumbo mode before bringing up the interface for the first time.
Let's change this.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/realtek/r8169_main.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index c4c2647c54e733..bfcc64db88032d 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2341,13 +2341,14 @@ static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
static void rtl_jumbo_config(struct rtl8169_private *tp)
{
bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
+ int readrq = 4096;
rtl_unlock_config_regs(tp);
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
if (jumbo) {
- pcie_set_readrq(tp->pci_dev, 512);
+ readrq = 512;
r8168b_1_hw_jumbo_enable(tp);
} else {
r8168b_1_hw_jumbo_disable(tp);
@@ -2355,7 +2356,7 @@ static void rtl_jumbo_config(struct rtl8169_private *tp)
break;
case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
if (jumbo) {
- pcie_set_readrq(tp->pci_dev, 512);
+ readrq = 512;
r8168c_hw_jumbo_enable(tp);
} else {
r8168c_hw_jumbo_disable(tp);
@@ -2378,8 +2379,8 @@ static void rtl_jumbo_config(struct rtl8169_private *tp)
}
rtl_lock_config_regs(tp);
- if (!jumbo && pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
- pcie_set_readrq(tp->pci_dev, 4096);
+ if (pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
+ pcie_set_readrq(tp->pci_dev, readrq);
}
DECLARE_RTL_COND(rtl_chipcmd_cond)
--
GitLab