linux-kernel - [PATCH 5.2 103/144] nvme: ignore subnqn for ADATA SX6000LNP

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Message-Id: <20190814165804.205571639@linuxfoundation.org>
Date:   Wed, 14 Aug 2019 19:00:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Misha Nasledov <misha@...ledov.com>,
        Christoph Hellwig <hch@....de>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 103/144] nvme: ignore subnqn for ADATA SX6000LNP

[ Upstream commit 08b903b5fd0c49e5f224a9bf085b6329ec3c55c0 ]

The ADATA SX6000LNP NVMe SSDs have the same subnqn and, due to this, a
system with more than one of these SSDs will only have one usable.

[ 0.942706] nvme nvme1: ignoring ctrl due to duplicate subnqn (nqn.2018-05.com.example:nvme:nvm-subsystem-OUI00E04C).
[ 0.943017] nvme nvme1: Removing after probe failure status: -22

02:00.0 Non-Volatile memory controller [0108]: Realtek Semiconductor Co., Ltd. Device [10ec:5762] (rev 01)
71:00.0 Non-Volatile memory controller [0108]: Realtek Semiconductor Co., Ltd. Device [10ec:5762] (rev 01)

There are no firmware updates available from the vendor, unfortunately.
Applying the NVME_QUIRK_IGNORE_DEV_SUBNQN quirk for these SSDs resolves
the issue, and they all work after this patch:

/dev/nvme0n1     2J1120050420         ADATA SX6000LNP [...]
/dev/nvme1n1     2J1120050540         ADATA SX6000LNP [...]

Signed-off-by: Misha Nasledov <misha@...ledov.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 7fbcd72c438f6..f9959eaaa185e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2959,6 +2959,8 @@ static const struct pci_device_id nvme_id_table[] = {
 		.driver_data = NVME_QUIRK_LIGHTNVM, },
 	{ PCI_DEVICE(0x1d1d, 0x2601),	/* CNEX Granby */
 		.driver_data = NVME_QUIRK_LIGHTNVM, },
+	{ PCI_DEVICE(0x10ec, 0x5762),   /* ADATA SX6000LNP */
+		.driver_data = NVME_QUIRK_IGNORE_DEV_SUBNQN, },
 	{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2003) },
-- 
2.20.1