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nvme-pci: add quirk for Memblaze Pblaze5 (0x1c5f:0x0555)

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The Memblaze Pblaze5 NVMe device (PCI ID 0x1c5f:0x0555)
is detected as a controller on recent kernels (tested on 5.15.85
and 6.8.4), but no namespace is exposed.

Tools like lsblk and fdisk do not report any block device.

dmesg shows:
  nvme nvme0: missing or invalid SUBNQN field.

The device works correctly on older kernels (e.g. 4.19), suggesting
a compatibility issue with newer namespace handling.

This indicates the device does not properly support the
Namespace Descriptor List feature.

Applying NVME_QUIRK_NO_NS_DESC_LIST allows the namespace to be
discovered correctly.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Tao Jiang <tanroame.kyle@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Tao Jiang
2026-04-16 01:27:15 +08:00
committed by Keith Busch
parent 3f150f0f01
commit cf92d78a4a
1 changed files with 2 additions and 0 deletions
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2
drivers/nvme/host/pci.c
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@@ -4102,6 +4102,8 @@ static const struct pci_device_id nvme_id_table[] = {
.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
{ PCI_DEVICE(0x1c5f, 0x0540), /* Memblaze Pblaze4 adapter */
.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
{ PCI_DEVICE(0x1c5f, 0x0555), /* Memblaze Pblaze5 adapter */
.driver_data = NVME_QUIRK_NO_NS_DESC_LIST, },
{ PCI_DEVICE(0x144d, 0xa808), /* Samsung PM981/983 */
.driver_data = NVME_QUIRK_IGNORE_DEV_SUBNQN, },
{ PCI_DEVICE(0x144d, 0xa821), /* Samsung PM1725 */