nvme: add --block-size option to IO interface to bypass identify command#2920
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igaw merged 3 commits intolinux-nvme:masterfrom Oct 7, 2025
Merged
nvme: add --block-size option to IO interface to bypass identify command#2920igaw merged 3 commits intolinux-nvme:masterfrom
--block-size option to IO interface to bypass identify command#2920igaw merged 3 commits intolinux-nvme:masterfrom
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NateThornton
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--block-size option to IO interface to bypass identify command
…nds. When specified, the --block-size is used as the logical block size in bytes, and the --metadata-size is used as the metadata size in bytes. Signed-off-by: Nate Thornton <n.thornton@samsung.com>
…y commands. Adds `--block-size=` and `-b` to various completions Signed-off-by: Nate Thornton <n.thornton@samsung.com>
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Could also update the documentation please? |
Include new `--block-size=` in compare/read/write documentation Signed-off-by: Nate Thornton <n.thornton@samsung.com>
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Thanks! |
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Right after merging I saw the the nvme-write documentation had an typo for the short-hand. Fixed it. |
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Sometimes it is desired to only issue the underlying I/O command through submit_io (compare, read, write). Currently, at least one identify namespace is used to discover the logical block size.
This change adds a new
--block-size=option to the submit_io interface. When provided, the--block-size=is used as the logical block size in bytes, and the--metadata-size=is also used as the metadata size in bytes. Storage and Reference tag checks are bypassed.(I am less certain about the
--metadata-size=acting per-block, and how best to support or document it. One idea would be to take the metadata-size as a the total size across all blocks, and settingms = cfg.metadata_size / (cfg.block_count + 1). I'm open to ideas or changes here)