Because ASPM control may not be granted by BIOS while ASPM is enabled,
and ASPM can be enabled via sysfs, so use pcie_aspm_enabled() directly
to check current ASPM enable status.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
v5:
- New patch.
drivers/net/ethernet/realtek/r8169_main.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 0199914440abc..6f1a9bec40c05 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -622,7 +622,6 @@ struct rtl8169_private {
} wk;
unsigned supports_gmii:1;
- unsigned aspm_manageable:1;
dma_addr_t counters_phys_addr;
struct rtl8169_counters *counters;
struct rtl8169_tc_offsets tc_offset;
@@ -2664,8 +2663,13 @@ static void rtl_enable_exit_l1(struct rtl8169_private *tp)
static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
{
- /* Don't enable ASPM in the chip if OS can't control ASPM */
- if (enable && tp->aspm_manageable) {
+ struct pci_dev *pdev = tp->pci_dev;
+
+ /* Don't enable ASPM in the chip if PCIe ASPM isn't enabled */
+ if (!pcie_aspm_enabled(pdev) && enable)
+ return;
+
+ if (enable) {
RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
} else {
@@ -5272,8 +5276,7 @@ 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.
*/
- rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1);
- tp->aspm_manageable = !rc;
+ pci_disable_link_state(pdev, PCIE_LINK_STATE_L1);
/* enable device (incl. PCI PM wakeup and hotplug setup) */
rc = pcim_enable_device(pdev);
--
2.32.0
