[PATCH 02/19] lightnvm: add controller capabilities to 2.0
Javier González
jg at lightnvm.io
Mon Feb 26 05:17:01 PST 2018
Assign missing mccap value on 2.0 path
Signed-off-by: Javier González <javier at cnexlabs.com>
---
drivers/nvme/host/lightnvm.c | 4 +++-
include/linux/lightnvm.h | 8 +++++---
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 8f541331b1a9..10392a664b50 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -318,7 +318,7 @@ static int nvme_nvm_setup_12(struct nvme_nvm_id12 *id,
dev_geo->c.ws_opt = sec_per_pg;
dev_geo->c.mw_cunits = 8; /* default to MLC safe values */
- dev_geo->c.mccap = le32_to_cpu(src->mccap);
+ dev_geo->c.cap = le32_to_cpu(src->mccap);
dev_geo->c.trdt = le32_to_cpu(src->trdt);
dev_geo->c.trdm = le32_to_cpu(src->trdm);
@@ -399,6 +399,8 @@ static int nvme_nvm_setup_20(struct nvme_nvm_id20 *id,
dev_geo->c.ws_opt = le32_to_cpu(id->ws_opt);
dev_geo->c.mw_cunits = le32_to_cpu(id->mw_cunits);
+ dev_geo->c.cap = le32_to_cpu(id->mccap);
+
dev_geo->c.trdt = le32_to_cpu(id->trdt);
dev_geo->c.trdm = le32_to_cpu(id->trdm);
dev_geo->c.tprt = le32_to_cpu(id->twrt);
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 4537c0140386..42704c4ca9af 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -273,8 +273,10 @@ struct nvm_common_geo {
u32 ws_opt; /* optimal write size */
u32 mw_cunits; /* distance required for successful read */
- /* device capabilities */
- u32 mccap;
+ /* device capabilities. Note that this represents capabilities in 1.2
+ * and media and controller capabilities in 2.0
+ */
+ u32 cap;
/* device timings */
u32 trdt; /* Avg. Tread (ns) */
@@ -289,7 +291,7 @@ struct nvm_common_geo {
/* 1.2 compatibility */
u8 vmnt;
- u32 cap;
+ u32 mccap;
u32 dom;
u8 mtype;
--
2.7.4
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