Messages in this thread Patch in this message | | | From | Jarosław Janik <> | Subject | [PATCH] nvme-pci: disable APST for Samsung NVMe SSD 960 EVO + ASUS PRIME Z370-A | Date | Sun, 11 Mar 2018 19:51:56 +0100 |
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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: Jarosław Janik <jaroslaw.janik@gmail.com> --- drivers/nvme/host/pci.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 5933a5c732e8..3bfaf083ca0b 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2460,10 +2460,13 @@ 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; } -- 2.16.1
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