Thread (79 messages) 79 messages, 3 authors, 2021-01-18
STALE1982d

[PATCH 5.4 42/76] nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-01-18 19:11:31
Also in: lkml
Subsystem: nvm express driver, the rest · Maintainers: Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Linus Torvalds

From: Gopal Tiwari <redacted>

[ Upstream commit 7ee5c78ca3895d44e918c38332921983ed678be0 ]

A system with more than one of these SSDs will only have one usable.
Hence the kernel fails to detect nvme devices due to duplicate cntlids.

[    6.274554] nvme nvme1: Duplicate cntlid 33 with nvme0, rejecting
[    6.274566] nvme nvme1: Removing after probe failure status: -22

Adding the NVME_QUIRK_IGNORE_DEV_SUBNQN quirk to resolves the issue.

Signed-off-by: Gopal Tiwari <redacted>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 9b1fc8633cfe1..ef93bd3ed339c 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3145,7 +3145,8 @@ static const struct pci_device_id nvme_id_table[] = {
 	{ PCI_DEVICE(0x144d, 0xa821),   /* Samsung PM1725 */
 		.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
 	{ PCI_DEVICE(0x144d, 0xa822),   /* Samsung PM1725a */
-		.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
+		.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY |
+				NVME_QUIRK_IGNORE_DEV_SUBNQN, },
 	{ PCI_DEVICE(0x1d1d, 0x1f1f),	/* LighNVM qemu device */
 		.driver_data = NVME_QUIRK_LIGHTNVM, },
 	{ PCI_DEVICE(0x1d1d, 0x2807),	/* CNEX WL */
-- 
2.27.0


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