kernel/linux.git/drivers/lightnvm, branch v4.11.5

lightnvm: set default lun range when no luns are specified

2017-02-15T15:27:21+00:00

The create target ioctl takes a lun begin and lun end parameter, which defines the range of luns to initialize a target with. If the user does not set the parameters, it default to only using lun 0. Instead, defaults to use all luns in the OCSSD, as it is the usual behaviour users want. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: fix off-by-one error on target initialization

2017-02-15T15:27:19+00:00

If one specifies the end lun id to be the absolute number of luns, without taking zero indexing into account, the lightnvm core will pass the off-by-one end lun id to target creation, which then panics during nvm_ioctl_dev_create. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: allow targets to use sysfs

2017-01-31T15:32:13+00:00

In order to register through the sysfs interface, a driver needs to know its kobject. On a disk structure, this happens when the partition information is added (device_add_disk), which for lightnvm takes place after the target has been initialized. This means that on target initialization, the kboject has not been created yet. This patch adds a target function to let targets initialize their own kboject as a child of the disk kobject. Signed-off-by: Javier González Added exit typedef and passed gendisk instead of void pointer for exit. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: free properly on target creation error

2017-01-31T15:32:13+00:00

Fix a memory leak when target creation fails. More specifically, free the entire device structure given to the target (tgt_dev). Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: use end_io callback instead of instance

2017-01-31T15:32:13+00:00

When the lightnvm core had the "gennvm" layer between the device and the target, there was a need for the core to be able to figure out which target it should send an end_io callback to. Leading to a "double" end_io, first for the media manager instance, and then for the target instance. Now that core and gennvm is merged, there is no longer a need for this, and a single end_io callback will do. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: reduce number of nvm_id groups to one

2017-01-31T15:32:13+00:00

The number of configuration groups has been limited to one in current code, even if there is support for up to four. With the introduction of the open-channel SSD 1.3 specification, only a single group is exposed onwards. Reflect this in the nvm_id structure. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: cleanup nvm transformation functions

2017-01-31T15:32:13+00:00

Going from target specific ppa addresses to device was accomplished by first converting target to generic ppa addresses and generic to device addresses. The conversion was either open-coded or used the built-in nvm_trans_* and nvm_map_* functions for conversion. Simplify the interface and cleanup the calls to provide clean functions that now either take a list of ppas or a nvm_rq, and is exposed through: void nvm_ppa_* - target to/from device with a list of PPAs, void nvm_rq_* - target to/from device with a nvm_rq. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: make nvm_map_* return void

2017-01-31T15:32:13+00:00

The only check there was done was a debugging check. Remove it and replace the return value with void to reduce error checking. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: remove nvm_get_bb_tbl and nvm_set_bb_tbl

2017-01-31T15:32:13+00:00

Since the merge of gennvm and core, there is no longer a need for the device specific bad block functions. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe

lightnvm: remove nvm_submit_ppa* functions

2017-01-31T15:32:13+00:00

The nvm_submit_ppa* functions are no longer needed after gennvm and core have been merged. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe