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nvme: add a Identify Namespace Identification Descriptor list quirk 

commit 5bedd3afee upstream.

Add a quirk for a device that does not support the Identify Namespace
Identification Descriptor list despite claiming 1.3 compliance.

Fixes: ea43d9709f ("nvme: fix identify error status silent ignore")
Reported-by: Ingo Brunberg <ingo_brunberg@web.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Ingo Brunberg <ingo_brunberg@web.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Cc: Plamen Lyutov <plamen.lyutov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Christoph Hellwig 2020-07-28 13:09:03 +02:00 committed by Greg Kroah-Hartman
parent 039b66468f
commit bd1584865c
3 changed files with 12 additions and 12 deletions
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15
drivers/nvme/host/core.c
View File

@ -1074,6 +1074,9 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
int pos;
int len;
if (ctrl->quirks & NVME_QUIRK_NO_NS_DESC_LIST)
return 0;
c.identify.opcode = nvme_admin_identify;
c.identify.nsid = cpu_to_le32(nsid);
c.identify.cns = NVME_ID_CNS_NS_DESC_LIST;
@ -1087,18 +1090,6 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
if (status) {
dev_warn(ctrl->device,
"Identify Descriptors failed (%d)\n", status);
/*
* Don't treat non-retryable errors as fatal, as we potentially
* already have a NGUID or EUI-64. If we failed with DNR set,
* we want to silently ignore the error as we can still
* identify the device, but if the status has DNR set, we want
* to propagate the error back specifically for the disk
* revalidation flow to make sure we don't abandon the
* device just because of a temporal retry-able error (such
* as path of transport errors).
*/
if (status > 0 && (status & NVME_SC_DNR))
status = 0;
goto free_data;
}

7
drivers/nvme/host/nvme.h
View File

@ -115,6 +115,13 @@ enum nvme_quirks {
* Prevent tag overlap between queues
*/
NVME_QUIRK_SHARED_TAGS = (1 << 13),
/*
* The controller doesn't handle the Identify Namespace
* Identification Descriptor list subcommand despite claiming
* NVMe 1.3 compliance.
*/
NVME_QUIRK_NO_NS_DESC_LIST = (1 << 15),
};
/*

2
drivers/nvme/host/pci.c
View File

@ -3117,6 +3117,8 @@ static const struct pci_device_id nvme_id_table[] = {
{ PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */
.driver_data = NVME_QUIRK_IDENTIFY_CNS |
NVME_QUIRK_DISABLE_WRITE_ZEROES, },
{ PCI_DEVICE(0x126f, 0x2263), /* Silicon Motion unidentified */
.driver_data = NVME_QUIRK_NO_NS_DESC_LIST, },
{ PCI_DEVICE(0x1bb1, 0x0100), /* Seagate Nytro Flash Storage */
.driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
{ PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */