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-rw-r--r--include/uapi/scsi/cxlflash_ioctl.h31
1 files changed, 26 insertions, 5 deletions
diff --git a/include/uapi/scsi/cxlflash_ioctl.h b/include/uapi/scsi/cxlflash_ioctl.h
index 87e1f63029bf..ad79c34f4d11 100644
--- a/include/uapi/scsi/cxlflash_ioctl.h
+++ b/include/uapi/scsi/cxlflash_ioctl.h
@@ -202,14 +202,34 @@ union cxlflash_ioctls {
#define HT_CXLFLASH_VERSION_0 0
struct ht_cxlflash_hdr {
- __u16 version; /* Version data */
- __u16 subcmd; /* Sub-command */
- __u16 rsvd[2]; /* Reserved for future use */
- __u64 flags; /* Input flags */
- __u64 return_flags; /* Returned flags */
+ __u16 version; /* Version data */
+ __u16 subcmd; /* Sub-command */
+ __u16 rsvd[2]; /* Reserved for future use */
+ __u64 flags; /* Input flags */
+ __u64 return_flags; /* Returned flags */
+};
+
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_CREATE_LUN 0x0001
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_DELETE_LUN 0x0002
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_QUERY_PORT 0x0003
+#define HT_CXLFLASH_LUN_PROVISION_WWID_LEN 16
+
+struct ht_cxlflash_lun_provision {
+ struct ht_cxlflash_hdr hdr; /* Common fields */
+ __u16 port; /* Target port for provision request */
+ __u16 reserved16[3]; /* Reserved for future use */
+ __u64 size; /* Size of LUN (4K blocks) */
+ __u64 lun_id; /* SCSI LUN ID */
+ __u8 wwid[HT_CXLFLASH_LUN_PROVISION_WWID_LEN]; /* Page83 WWID, NAA-6 */
+ __u64 max_num_luns; /* Maximum number of LUNs provisioned */
+ __u64 cur_num_luns; /* Current number of LUNs provisioned */
+ __u64 max_cap_port; /* Total capacity for port (4K blocks) */
+ __u64 cur_cap_port; /* Current capacity for port (4K blocks) */
+ __u64 reserved[8]; /* Reserved for future use */
};
union cxlflash_ht_ioctls {
+ struct ht_cxlflash_lun_provision lun_provision;
};
#define MAX_HT_CXLFLASH_IOCTL_SZ (sizeof(union cxlflash_ht_ioctls))
@@ -218,6 +238,7 @@ union cxlflash_ht_ioctls {
* CXL Flash host ioctls start at the top of the reserved CXL_MAGIC
* region (0xBF) and grow downwards.
*/
+#define HT_CXLFLASH_LUN_PROVISION CXL_IOWR(0xBF, ht_cxlflash_lun_provision)
#endif /* ifndef _CXLFLASH_IOCTL_H */

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