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authorJarosław Janik <jaroslaw.janik@gmail.com>2018-03-11 19:51:56 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-30 07:52:29 +0200
commit085ec7d554c176a167825100f47e721dae5fbec4 (patch)
treee5ff7a31d06fa97b8d73f01a46681e1e85e98cd7
parent7e5487b3990de1445d172b739b1924fb1f4d95a9 (diff)
nvme-pci: disable APST for Samsung NVMe SSD 960 EVO + ASUS PRIME Z370-A
[ Upstream commit 467c77d4cbefaaf65e2f44fe102d543a52fcae5b ] 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> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/nvme/host/pci.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 1b9dbd3c1be6..3d4724e38aa9 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2314,10 +2314,13 @@ 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;
}