linux-kernel - [PATCH] nvme: Apply the same fix Kingston SKC2000 nVME SSD as A2000

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Message-Id: <20210221051216.3398620-1-zboszor@pr.hu>
Date:   Sun, 21 Feb 2021 06:12:16 +0100
From:   Zoltán Böszörményi 
        <zboszor@...hu>
To:     linux-kernel@...r.kernel.org
Cc:     linux-scsi@...r.kernel.org, linux-nvme@...ts.infradead.org,
        gregkh@...uxfoundation.org,
        Zoltán Böszörményi 
        <zboszor@...il.com>
Subject: [PATCH] nvme: Apply the same fix Kingston SKC2000 nVME SSD as A2000

From: Zoltán Böszörményi <zboszor@...il.com>

My 2TB SKC2000 showed the exact same symptoms that were provided
in 538e4a8c57 ("nvme-pci: avoid the deepest sleep state on
Kingston A2000 SSDs"), i.e. a complete NVME lockup that needed
cold boot to get it back.

According to some sources, the A2000 is simply a rebadged
SKC2000 with a slightly optimized firmware.

Adding the SKC2000 PCI ID to the quirk list with the same workaround
as the A2000 made my laptop survive a 5 hours long Yocto bootstrap
buildfest which reliably triggered the SSD lockup previously.

Tested against 5.10.17.

Signed-off-by: Zoltán Böszörményi <zboszor@...il.com>

---
 drivers/nvme/host/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 4a33287..3af6a95 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3264,6 +3264,8 @@ static const struct pci_device_id nvme_id_table[] = {
 		.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
 	{ PCI_DEVICE(0x15b7, 0x2001),   /*  Sandisk Skyhawk */
 		.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+	{ PCI_DEVICE(0x2646, 0x2262),   /* KINGSTON SKC2000 NVMe SSD  */
+		.driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
 	{ PCI_DEVICE(0x2646, 0x2263),   /* KINGSTON A2000 NVMe SSD  */
 		.driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001),
-- 
2.29.2