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PCI: Mark Micron 2100AI NVMe to avoid using ASPM

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From test, 2100AI NVMe randomly reject TLP access when ASPM is
enabled. Especially after powering cycle it, it immediately enters
lower power mode but refuse to ack TLP.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Change-Id: I2ce3e857014296195d91cd89c8185810a271b4af
This commit is contained in:
Shawn Lin
2023-02-03 10:00:27 +08:00
committed by Tao Huang
parent 49979286c4
commit 3d9af6480a
2 changed files with 10 additions and 0 deletions
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7
drivers/pci/quirks.c
View File

@@ -2357,6 +2357,13 @@ static void quirk_disable_aspm_l0s_l1(struct pci_dev *dev)
*/
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, quirk_disable_aspm_l0s_l1);
/*
* Micron 2100AI NVMe doesn't work reliably when ASPM is enabled. Disable
* ASPM support for it now.
*/
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MICRON, PCI_DEVICE_ID_MICRON_2100AI,
quirk_disable_aspm_l0s_l1);
/*
* Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain
* Link bit cleared after starting the link retrain process to allow this

3
include/linux/pci_ids.h
View File

@@ -1912,6 +1912,9 @@
#define PCI_DEVICE_ID_MICRO_MEMORY_5425CN 0x5425
#define PCI_DEVICE_ID_MICRO_MEMORY_6155 0x6155
#define PCI_VENDOR_ID_MICRON 0x1344
#define PCI_DEVICE_ID_MICRON_2100AI 0x6001
#define PCI_VENDOR_ID_DOMEX 0x134a
#define PCI_DEVICE_ID_DOMEX_DMX3191D 0x0001