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r8169: disable ASPM again

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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>
This commit is contained in:
Heiner Kallweit
2019-04-05 20:46:46 +02:00
committed by David S. Miller
parent b1a6e8f913
commit b75bb8a5b7
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/realtek/r8169.c
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@ -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) {