Create a shorten version to use in the generic geometry.
Signed-off-by: Javier González <jav...@cnexlabs.com>
---
drivers/nvme/host/lightnvm.c | 6 ++++++
include/linux/lightnvm.h | 8 ++++++++
2 files changed, 14 insertions(+)
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 8befb60eeacb..a48950a37b8d 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -299,6 +299,9 @@ static int nvme_nvm_setup_12(struct nvme_nvm_id12 *id,
dev_geo->major_ver_id = id->ver_id;
dev_geo->minor_ver_id = 2;
+ /* Set compacted version for upper layers */
+ dev_geo->c.version = NVM_OCSSD_SPEC_12;
+
dev_geo->nr_chnls = src->num_ch;
dev_geo->nr_luns = src->num_lun;
dev_geo->all_luns = dev_geo->nr_chnls * dev_geo->nr_luns;
@@ -385,6 +388,9 @@ static int nvme_nvm_setup_20(struct nvme_nvm_id20 *id,
dev_geo->major_ver_id = id->mjr;
dev_geo->minor_ver_id = id->mnr;
+ /* Set compacted version for upper layers */
+ dev_geo->c.version = NVM_OCSSD_SPEC_20;
+
if (!(dev_geo->major_ver_id == 2 && dev_geo->minor_ver_id == 0)) {
pr_err("nvm: OCSSD version not supported (v%d.%d)\n",
dev_geo->major_ver_id, dev_geo->minor_ver_id);
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index ccaf8a30202d..57d00644a1c6 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -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 {
@@ -262,6 +267,9 @@ enum {
/* Device common geometry */
struct nvm_common_geo {
+ /* kernel short version */
+ u8 version;
+
/* chunk geometry */
u32 num_chk; /* chunks per lun */
u32 clba; /* sectors per chunk */
--
2.7.4
