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lightnvm: add shorten OCSSD version in geo

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Create a shorten version to use in the generic geometry.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González 2018-03-30 00:05:12 +02:00 committed by Jens Axboe
parent 3cb98f84d3
commit f1d4e8121f
2 changed files with 14 additions and 0 deletions
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6
drivers/nvme/host/lightnvm.c
View file

@ -299,6 +299,9 @@ static int nvme_nvm_setup_12(struct nvme_nvm_id12 *id,
geo->major_ver_id = id->ver_id;
geo->minor_ver_id = 2;
/* Set compacted version for upper layers */
geo->version = NVM_OCSSD_SPEC_12;
geo->nr_chnls = src->num_ch;
geo->nr_luns = src->num_lun;
geo->all_luns = geo->nr_chnls * geo->nr_luns;
@ -384,6 +387,9 @@ static int nvme_nvm_setup_20(struct nvme_nvm_id20 *id,
geo->major_ver_id = id->mjr;
geo->minor_ver_id = id->mnr;
/* Set compacted version for upper layers */
geo->version = NVM_OCSSD_SPEC_20;
if (!(geo->major_ver_id == 2 && geo->minor_ver_id == 0)) {
pr_err("nvm: OCSSD version not supported (v%d.%d)\n",
geo->major_ver_id, geo->minor_ver_id);

8
include/linux/lightnvm.h
View file

@ -23,6 +23,11 @@ enum {
#define NVM_LUN_BITS (8)
#define NVM_CH_BITS (7)
enum {
NVM_OCSSD_SPEC_12 = 12,
NVM_OCSSD_SPEC_20 = 20,
};
struct ppa_addr {
/* Generic structure for all addresses */
union {
@ -266,6 +271,9 @@ struct nvm_geo {
u8 major_ver_id;
u8 minor_ver_id;
/* kernel short version */
u8 version;
/* instance specific geometry */
int nr_chnls;
int nr_luns; /* per channel */