# Changes since V2: Apply Matias' feedback: - Remove generic nvm_id identify structure. - Do not remap capabilities (cap) to media and controlled capabilities (mccap). Instead, add a comment to prevent confusion when crosschecking with 2.0 spec. - Change maxoc and maxocpu defaults from 1 block to the max number of blocks. - Re-implement the generic geometry to use nvm_geo on both device and targets. Maintain nvm_common_geo to make it easier to copy the common part of the geometry (without having to overwrite target-specific fields, which is ugly and error prone). Matias, if you still want to get rid of this, we can do it. - Re-order patches with renaming to make them more meaningful. These belong to the series, since the name changes are motivated by 2.0 inclusions. The only exception would be 36d10bfd3234, but I hope it is OK I include it here. Also, - Eliminate a dependency between luns and lines in the init/exit refactoring. - Use the global address format when possible to avoid defaulting on the 1.2 path. This will safe headaches if the address format changes at some point. I took out the patch allowing to do bit shifts on non power-of-2 media formats on pblk's mapping since it requires touching many places that are not 2.0 related. I'll submit this separately. # Changes since V1: Apply Matias' feedback: - Rebase on top of Matias' latest patches. - Use nvme_get_log_ext to submit report chunk and export it. - Re-write report chunk based on Matias' suggestions. Here, I maintained the lba interface, but it was necessary to redo the address formatting to match the chunk log page format. For pblk, this means a double address transformation, but it enables the standard path to use lbas, plus, this is not in the fast path. - Fold address format together with address transformations. - Split the generic geometry patch in different patches. - Remove refactoring of ligthnvm's core sysfs. Feedback not applied: - Not letting pblk know about 1.2 and 2.0 bad block paths. Since the interfaces for get/set bad block and report chunk are so different, moving this logic to core adds assumptions on how the targets would want to get the data back. A way of doing this is creating a logical report chunk on the 1.2 path, but this would mean that values like the wear-index are invalid, which requires the target knowledge. I'm open to suggestions here. Also: - Do some further renamings - Create a generic address format to make it explicit where we share 1.2 and 2.0 fields to avoid address formatting in the fast path. - Add new fields to sysfs to complete spec and show major/minor versions (version and subversion to respect current interface). Implement 2.0 support in pblk. This includes the address formatting and mapping paths, as well as the sysfs entries for them. Javier Javier González (19): lightnvm: simplify geometry structure. lightnvm: add controller capabilities to 2.0 lightnvm: add minor version to generic geometry lightnvm: add shorten OCSSD version in geo lightnvm: complete geo structure with maxoc* lightnvm: pblk: check for supported version lightnvm: complete 2.0 values in sysfs lightnvm: rename number of channels and luns lightnvm: rename sect_* to sec_* lightnvm: add support for 2.0 address format lightnvm: pblk: rename ppaf* to addrf* lightnvn: pblk: use generic address format lightnvm: make address conversions depend on generic device nvme: make nvme_get_log_ext available lightnvm: implement get log report chunk helpers lightnvm: define chunk states lightnvm: pblk: implement get log report chunk lightnvm: pblk: refactor init/exit sequences lightnvm: pblk: implement 2.0 support drivers/lightnvm/core.c | 199 +++++----- drivers/lightnvm/pblk-core.c | 151 +++++-- drivers/lightnvm/pblk-gc.c | 2 +- drivers/lightnvm/pblk-init.c | 833 +++++++++++++++++++++++---------------- drivers/lightnvm/pblk-map.c | 4 +- drivers/lightnvm/pblk-read.c | 2 +- drivers/lightnvm/pblk-recovery.c | 14 +- drivers/lightnvm/pblk-rl.c | 2 +- drivers/lightnvm/pblk-sysfs.c | 134 ++++++- drivers/lightnvm/pblk-write.c | 2 +- drivers/lightnvm/pblk.h | 255 ++++++++---- drivers/nvme/host/lightnvm.c | 458 ++++++++++++++------- drivers/nvme/host/nvme.h | 3 + include/linux/lightnvm.h | 338 ++++++++++------ 14 files changed, 1559 insertions(+), 838 deletions(-) -- 2.7.4
