From f9a9995072904f2d67d649545f17f81e00f4985e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Matias=20Bj=C3=B8rling?= Date: Tue, 12 Jan 2016 07:49:34 +0100 Subject: [PATCH] lightnvm: add mccap support MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Jens Axboe --- drivers/lightnvm/core.c | 1 + include/linux/lightnvm.h | 7 +++++++ 2 files changed, 8 insertions(+) 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 -- 2.20.1