* [PATCH 5.15+] nvme/pci: Add APST quirk for Lenovo N60z laptop
@ 2024-07-31 7:18 WangYuli
2024-08-15 8:32 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: WangYuli @ 2024-07-31 7:18 UTC (permalink / raw)
To: stable, gregkh, sashal
Cc: keith.busch, axboe, hch, sagi, linux-nvme, linux-kernel, xuerpeng,
WangYuli, hmy, Wentao Guan, Keith Busch
commit ab091ec536cb7b271983c0c063b17f62f3591583 upstream
There is a hardware power-saving problem with the Lenovo N60z
board. When turn it on and leave it for 10 hours, there is a
20% chance that a nvme disk will not wake up until reboot.
Link: https://lore.kernel.org/all/2B5581C46AC6E335+9c7a81f1-05fb-4fd0-9fbb-108757c21628@uniontech.com
Signed-off-by: hmy <huanglin@uniontech.com>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
---
drivers/nvme/host/pci.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 5a3ba7e39054..d73b8eb76b8f 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2968,6 +2968,13 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
return NVME_QUIRK_FORCE_NO_SIMPLE_SUSPEND;
}
+ /*
+ * NVMe SSD drops off the PCIe bus after system idle
+ * for 10 hours on a Lenovo N60z board.
+ */
+ if (dmi_match(DMI_BOARD_NAME, "LXKT-ZXEG-N6"))
+ return NVME_QUIRK_NO_APST;
+
return 0;
}
--
2.43.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 5.15+] nvme/pci: Add APST quirk for Lenovo N60z laptop
2024-07-31 7:18 [PATCH 5.15+] nvme/pci: Add APST quirk for Lenovo N60z laptop WangYuli
@ 2024-08-15 8:32 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2024-08-15 8:32 UTC (permalink / raw)
To: WangYuli
Cc: stable, sashal, keith.busch, axboe, hch, sagi, linux-nvme,
linux-kernel, xuerpeng, hmy, Wentao Guan, Keith Busch
On Wed, Jul 31, 2024 at 03:18:27PM +0800, WangYuli wrote:
> commit ab091ec536cb7b271983c0c063b17f62f3591583 upstream
>
> There is a hardware power-saving problem with the Lenovo N60z
> board. When turn it on and leave it for 10 hours, there is a
> 20% chance that a nvme disk will not wake up until reboot.
>
> Link: https://lore.kernel.org/all/2B5581C46AC6E335+9c7a81f1-05fb-4fd0-9fbb-108757c21628@uniontech.com
> Signed-off-by: hmy <huanglin@uniontech.com>
> Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
> Signed-off-by: WangYuli <wangyuli@uniontech.com>
> Signed-off-by: Keith Busch <kbusch@kernel.org>
> ---
> drivers/nvme/host/pci.c | 7 +++++++
> 1 file changed, 7 insertions(+)
All now queued up, thanks.
greg k-h
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