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nvme: add verbose error logging

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Improves logging of NVMe errors.  If NVME_VERBOSE_ERRORS is configured,
a verbose description of the error is logged, otherwise only status
codes/bits is logged.

Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
[kch]: fix several nits, cosmetics, and trim down code.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Alan Adamson <alan.adamson@oracle.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Alan Adamson 2022-02-03 00:11:53 -08:00 • committed by Christoph Hellwig
parent 72e8b5cd7d
commit bd83fe6f2c
6 changed files with 247 additions and 1 deletions
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include/linux/nvme.h
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@ -1636,6 +1636,7 @@ enum {
NVME_SC_HOST_ABORTED_CMD = 0x371,
NVME_SC_CRD = 0x1800,
NVME_SC_MORE = 0x2000,
NVME_SC_DNR = 0x4000,
};