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bc3a65e992
Add support for metadata in the form of extended logical blocks as well as a separate buffer of data. The new `ms` nvme-ns device parameter specifies the size of metadata per logical block in bytes. The `mset` nvme-ns device parameter controls whether metadata is transfered as part of an extended lba (set to '1') or in a separate buffer (set to '0', the default). Regardsless of the scheme chosen with `mset`, metadata is stored at the end of the namespace backing block device. This requires the user provided PRP/SGLs to be walked and "split" into data and metadata scatter/gather lists if the extended logical block scheme is used, but has the advantage of not breaking the deallocated blocks support. Co-authored-by: Gollu Appalanaidu <anaidu.gollu@samsung.com> Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com> Signed-off-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Keith Busch <kbusch@kernel.org> |
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| .. | ||
| dataplane | ||
| block.c | ||
| cdrom.c | ||
| ecc.c | ||
| fdc.c | ||
| hd-geometry.c | ||
| Kconfig | ||
| m25p80.c | ||
| meson.build | ||
| nand.c | ||
| nvme-ns.c | ||
| nvme-ns.h | ||
| nvme-subsys.c | ||
| nvme-subsys.h | ||
| nvme.c | ||
| nvme.h | ||
| onenand.c | ||
| pflash_cfi01.c | ||
| pflash_cfi02.c | ||
| swim.c | ||
| tc58128.c | ||
| trace-events | ||
| trace.h | ||
| vhost-user-blk.c | ||
| virtio-blk.c | ||
| xen_blkif.h | ||
| xen-block.c | ||