delta/linux.git/include/linux/lightnvm.h, branch proc-cmdline

lightnvm: pblk: implement get log report chunk

2018-03-29T23:29:09+00:00

In preparation of pblk supporting 2.0, implement the get log report
chunk in pblk. Also, define the chunk states as given in the 2.0 spec.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: implement get log report chunk helpers

2018-03-29T23:29:09+00:00

The 2.0 spec provides a report chunk log page that can be retrieved
using the stangard nvme get log page. This replaces the dedicated
get/put bad block table in 1.2.

This patch implements the helper functions to allow targets retrieve the
chunk metadata using get log page. It makes nvme_get_log_ext available
outside of nvme core so that we can use it form lightnvm.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: make address conversions depend on generic device

2018-03-29T23:29:09+00:00

On address conversions, use the generic device, instead of the target
device. This allows to use conversions outside of the target's realm.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: add support for 2.0 address format

2018-03-29T23:29:09+00:00

Add support for 2.0 address format. Also, align address bits for 1.2 and
2.0 to be able to operate on channel and luns without requiring a format
conversion. Use a generic address format for this purpose.

Also, convert the generic operations to the generic format in pblk.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: normalize geometry nomenclature

2018-03-29T23:29:09+00:00

Normalize nomenclature for naming channels, luns, chunks, planes and
sectors as well as derivations in order to improve readability.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: complete geo structure with maxoc*

2018-03-29T23:29:09+00:00

Complete the generic geometry structure with the maxoc and maxocpu
felds, present in the 2.0 spec. Also, expose them through sysfs.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: add shorten OCSSD version in geo

2018-03-29T23:29:09+00:00

Create a shorten version to use in the generic geometry.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: add minor version to generic geometry

2018-03-29T23:29:09+00:00

Separate the version between major and minor on the generic geometry and
represent it through sysfs in the 2.0 path. The 1.2 path only shows the
major version to preserve the existing user space interface.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: simplify geometry structure

2018-03-29T23:29:09+00:00

Currently, the device geometry is stored redundantly in the nvm_id and
nvm_geo structures at a device level. Moreover, when instantiating
targets on a specific number of LUNs, these structures are replicated
and manually modified to fit the instance channel and LUN partitioning.

Instead, create a generic geometry around nvm_geo, which can be used by
(i) the underlying device to describe the geometry of the whole device,
and (ii) instances to describe their geometry independently.

Signed-off-by: Javier González 
Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe

lightnvm: remove nvm_dev_ops->max_phys_sect

2018-03-29T23:29:09+00:00

The value of max_phys_sect is always static. Instead of
defining it in the nvm_dev_ops structure, declare it as a global
value.

Signed-off-by: Matias Bjørling 
Signed-off-by: Jens Axboe