Commit 467c77d4 authored by Jarosław Janik's avatar Jarosław Janik Committed by Jens Axboe

nvme-pci: disable APST for Samsung NVMe SSD 960 EVO + ASUS PRIME Z370-A

Yet another "incompatible" Samsung NVMe SSD 960 EVO and Asus motherboard
combination. 960 EVO device disappears from PCIe bus within few minutes
after boot-up when APST is in use and never gets back. Forcing
NVME_QUIRK_NO_APST is the only way to make this drive work with this
particular motherboard. NVME_QUIRK_NO_DEEPEST_PS doesn't work, upgrading
motherboard's BIOS didn't help either.
Since this is a desktop motherboard, the only drawback of not using APST
is increased device temperature.
Signed-off-by: default avatarJarosław Janik <jaroslaw.janik@gmail.com>
Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 77d0612d
......@@ -2467,10 +2467,13 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
} else if (pdev->vendor == 0x144d && pdev->device == 0xa804) {
/*
* Samsung SSD 960 EVO drops off the PCIe bus after system
* suspend on a Ryzen board, ASUS PRIME B350M-A.
* suspend on a Ryzen board, ASUS PRIME B350M-A, as well as
* within few minutes after bootup on a Coffee Lake board -
* ASUS PRIME Z370-A
*/
if (dmi_match(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC.") &&
dmi_match(DMI_BOARD_NAME, "PRIME B350M-A"))
(dmi_match(DMI_BOARD_NAME, "PRIME B350M-A") ||
dmi_match(DMI_BOARD_NAME, "PRIME Z370-A")))
return NVME_QUIRK_NO_APST;
}
......
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