r8169: fix ASPM-related issues on a number of systems with NIC version from RTL8168h

commit 90ca51e8c654699b672ba61aeaa418dfb3252e5e upstream.

This effectively reverts 4b5f82f6aaef. On a number of systems ASPM L1
causes tx timeouts with RTL8168h, see referenced bug report.

Fixes: 4b5f82f6aaef ("r8169: enable ASPM L1/L1.1 from RTL8168h")
Cc: stable@vger.kernel.org
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217814
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index cabed1b7b45edcf8330ba9368f61d698776c8eec..a9a0dca0c0305317de5bd7e0f2dd10a5336dd70d 100644 (file)
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5201,13 +5201,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        /* Disable ASPM L1 as that cause random device stop working
         * problems as well as full system hangs for some PCIe devices users.
-        * Chips from RTL8168h partially have issues with L1.2, but seem
-        * to work fine with L1 and L1.1.
         */
        if (rtl_aspm_is_safe(tp))
                rc = 0;
-       else if (tp->mac_version >= RTL_GIGA_MAC_VER_46)
-               rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1_2);
        else
                rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1);
        tp->aspm_manageable = !rc;