On Mar 10 10:53, Klaus Jensen wrote: > From: Klaus Jensen <k.jen...@samsung.com> > > This is v5 of a series that adds support for metadata and end-to-end > data protection. > > First, on the subject of metadata, in v1, support was restricted to > extended logical blocks, which was pretty trivial to implement, but > required special initialization and broke DULBE. In v2, metadata is > always stored continuously at the end of the underlying block device. > This has the advantage of not breaking DULBE since the data blocks > remains aligned and allows bdrv_block_status to be used to determinate > allocation status. It comes at the expense of complicating the extended > LBA emulation, but on the other hand it also gains support for metadata > transfered as a separate buffer. > > The end-to-end data protection support blew up in terms of required > changes. This is due to the fact that a bunch of new commands has been > added to the device since v1 (zone append, compare, copy), and they all > require various special handling for protection information. If > potential reviewers would like it split up into multiple patches, each > adding pi support to one command, shout out. > > Support for metadata and end-to-end data protection is all joint work > with Gollu Appalanaidu. > > v5: > * add a required fix for zone management receive when metadata is > involved > * add a couple of refactor patches for the zoned init code to make the > format nvm patch more straight forward wrt. formatting of zoned > namespaces. >
FYI, the SPDK e2edp test (tests/nvme/e2edp/nvme_dp) fails on this series when metadata is more than 8 bytes. This is a bug in the test and I've posted a fix upstream for this. https://review.spdk.io/gerrit/c/spdk/spdk/+/6891 -- k
signature.asc
Description: PGP signature
