Merge pull request #224 from Arunpandian15/Enhanced_ctrl_MD

nvme: Add Enhanced Controller Meta Data(FID: 0x7D)

Author: dwsuse

src/nvme/types.h

@@ -5882,6 +5882,7 @@ enum nvme_cmd_get_log_lid {
  * @NVME_FEAT_FID_ENDURANCE_EVT_CFG:
  * @NVME_FEAT_FID_IOCS_PROFILE:
  * @NVME_FEAT_FID_SPINUP_CONTROL:
+ * @NVME_FEAT_FID_ENH_CTRL_METADATA:	Enhanced Controller Metadata
  * @NVME_FEAT_FID_CTRL_METADATA:	Controller Metadata
  * @NVME_FEAT_FID_NS_METADATA:		Namespace Metadata
  * @NVME_FEAT_FID_SW_PROGRESS:
@@ -5917,6 +5918,7 @@ enum nvme_features_id {
 	NVME_FEAT_FID_ENDURANCE_EVT_CFG				= 0x18,
 	NVME_FEAT_FID_IOCS_PROFILE				= 0x19, /* XXX: Placeholder until assigned */
 	NVME_FEAT_FID_SPINUP_CONTROL				= 0x1a,
+	NVME_FEAT_FID_ENH_CTRL_METADATA				= 0x7d,
 	NVME_FEAT_FID_CTRL_METADATA				= 0x7e,
 	NVME_FEAT_FID_NS_METADATA				= 0x7f,
 	NVME_FEAT_FID_SW_PROGRESS				= 0x80,

src/nvme/util.c

@@ -439,6 +439,7 @@ int nvme_get_feature_length(int fid, __u32 cdw11, __u32 *len)
 	case NVME_FEAT_FID_WRITE_PROTECT:
 		*len = 0;
 		break;
+	case NVME_FEAT_FID_ENH_CTRL_METADATA:
 	case NVME_FEAT_FID_CTRL_METADATA:
 	case NVME_FEAT_FID_NS_METADATA:
 		*len = sizeof(struct nvme_host_metadata);