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nvme/pci: Add sleep quirk for Samsung and Toshiba drives 

The Samsung SSD SM981/PM981 and Toshiba SSD KBG40ZNT256G on the Lenovo
C640 platform experience runtime resume issues when the SSDs are kept in
sleep/suspend mode for long time.

This patch applies the 'Simple Suspend' quirk to these configurations.
With this patch, the issue had not been observed in a 1+ day test.

Reviewed-by: Jon Derrick <jonathan.derrick@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Shyjumon N <shyjumon.n@intel.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Shyjumon N 2020-02-06 13:17:25 -07:00 committed by Keith Busch
parent f25372ffc3
commit 1fae37accf
1 changed files with 12 additions and 0 deletions
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12
drivers/nvme/host/pci.c
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@ -2747,6 +2747,18 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
(dmi_match(DMI_BOARD_NAME, "PRIME B350M-A") ||
dmi_match(DMI_BOARD_NAME, "PRIME Z370-A")))
return NVME_QUIRK_NO_APST;
} else if ((pdev->vendor == 0x144d && (pdev->device == 0xa801 ||
pdev->device == 0xa808 || pdev->device == 0xa809)) ||
(pdev->vendor == 0x1e0f && pdev->device == 0x0001)) {
/*
* Forcing to use host managed nvme power settings for
* lowest idle power with quick resume latency on
* Samsung and Toshiba SSDs based on suspend behavior
* on Coffee Lake board for LENOVO C640
*/
if ((dmi_match(DMI_BOARD_VENDOR, "LENOVO")) &&
dmi_match(DMI_BOARD_NAME, "LNVNB161216"))
return NVME_QUIRK_SIMPLE_SUSPEND;
}
return 0;