delta/linux.git/drivers/lightnvm, branch proc-cmdline

lightnvm: pblk: remove some unnecessary NULL checks

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

Smatch complains that flush_workqueue() dereferences the work queue
pointer but then we check if it's NULL on the next line when it's too
late.  These NULL checks can be removed because the module won't load if
we can't allocate the work queues.

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

lightnvm: pblk: don't recover unwritten lines

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

If the line has not been written to, we should not
try to recover any data from it, so check the state of the
chunks in the line before attempting to read smeta.

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

lightnvm: pblk: implement 2.0 support

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

Implement 2.0 support in pblk. This includes the address formatting and
mapping paths, as well as the sysfs entries for them.

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

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: pblk: rename ppaf* to addrf*

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

In preparation for 2.0 support in pblk, rename variables referring to
the address format to addrf and reserve ppaf for the 1.2 path.

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

lightnvm: pblk: check for supported version

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

At this point, only 1.2 spec is supported, thus check for it. Also,
since device-side L2P is only supported in the 1.2 spec, make sure to
only check its value under 1.2.

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