diff options
authorHeiner Kallweit <hkallweit1@gmail.com>2019-04-05 20:46:46 +0200
committerDavid S. Miller <davem@davemloft.net>2019-04-08 15:19:16 -0700
commitb75bb8a5b755d0c7bf1ac071e4df2349a7644a1e (patch)
parentb1a6e8f9131381a92bfdacdf86ef80cca82f71d4 (diff)
r8169: disable ASPM again
There's a significant number of reports that re-enabling ASPM causes different issues, ranging from decreased performance to system not booting at all. This affects only a minority of users, but the number of affected users is big enough that we better switch off ASPM again. This will hurt notebook users who are not affected by the issues, they may see decreased battery runtime w/o ASPM. With the PCI core folks is being discussed to add generic sysfs attributes to control ASPM. Once this is in place brave enough users can re-enable ASPM on their system. Fixes: a99790bf5c7f ("r8169: Reinstate ASPM Support") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 19efa88f3f02..ed651dde6ef9 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -28,6 +28,7 @@
#include <linux/pm_runtime.h>
#include <linux/firmware.h>
#include <linux/prefetch.h>
+#include <linux/pci-aspm.h>
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
@@ -7352,6 +7353,11 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
+ /* Disable ASPM completely as that cause random device stop working
+ * problems as well as full system hangs for some PCIe devices users.
+ */
+ pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
/* enable device (incl. PCI PM wakeup and hotplug setup) */
rc = pcim_enable_device(pdev);
if (rc < 0) {