[PATCH net-next 2/2] r8169: tweak max read request size for newer chips also in jumbo mtu mode

[Heiner Kallweit]

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 <hkallwe...@gmail.com>
---
 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 8336f1434..6e4c60185 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2315,13 +2315,14 @@ 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);
@@ -2329,7 +2330,7 @@ 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);
@@ -2352,8 +2353,8 @@ 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)
-- 
2.30.0