diff options
| author | Matias Bjørling <m@bjorling.me> | 2016-01-12 07:49:34 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-01-12 08:21:17 -0700 |
| commit | f9a9995072904f2d67d649545f17f81e00f4985e (patch) | |
| tree | 774660b123ea0de223f1bdccaa5de92b8d412834 | |
| parent | ff0e498bfa185fad5e86c4c7a2db4f9648d2344f (diff) | |
| download | lwn-f9a9995072904f2d67d649545f17f81e00f4985e.tar.gz lwn-f9a9995072904f2d67d649545f17f81e00f4985e.zip | |
lightnvm: add mccap support
Some flash media has extended capabilities, such as programming SLC
pages on MLC/TLC flash, erase/program suspend, scramble and encryption.
MCCAP is introduced to detect support for these capabilities in the
command set.
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/lightnvm/core.c | 1 | ||||
| -rw-r--r-- | include/linux/lightnvm.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index e5e396338319..5199c12fead0 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -376,6 +376,7 @@ static int nvm_core_init(struct nvm_dev *dev) dev->sec_size = grp->csecs; dev->oob_size = grp->sos; dev->sec_per_pg = grp->fpg_sz / grp->csecs; + dev->mccap = grp->mccap; memcpy(&dev->ppaf, &id->ppaf, sizeof(struct nvm_addr_format)); dev->plane_mode = NVM_PLANE_SINGLE; diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index aa35907714b8..b90d28344e3d 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -61,6 +61,12 @@ enum { NVM_BLK_T_GRWN_BAD = 0x2, NVM_BLK_T_DEV = 0x4, NVM_BLK_T_HOST = 0x8, + + /* Memory capabilities */ + NVM_ID_CAP_SLC = 0x1, + NVM_ID_CAP_CMD_SUSPEND = 0x2, + NVM_ID_CAP_SCRAMBLE = 0x4, + NVM_ID_CAP_ENCRYPT = 0x8, }; struct nvm_id_group { @@ -278,6 +284,7 @@ struct nvm_dev { int blks_per_lun; int sec_size; int oob_size; + int mccap; struct nvm_addr_format ppaf; /* Calculated/Cached values. These do not reflect the actual usable |