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Diffstat (limited to 'include/uapi/scsi/cxlflash_ioctl.h')
-rw-r--r--include/uapi/scsi/cxlflash_ioctl.h85
1 files changed, 83 insertions, 2 deletions
diff --git a/include/uapi/scsi/cxlflash_ioctl.h b/include/uapi/scsi/cxlflash_ioctl.h
index e9fdc12ad984..48d107e75cf2 100644
--- a/include/uapi/scsi/cxlflash_ioctl.h
+++ b/include/uapi/scsi/cxlflash_ioctl.h
@@ -18,6 +18,11 @@
#include <linux/types.h>
/*
+ * Structure and definitions for all CXL Flash ioctls
+ */
+#define CXLFLASH_WWID_LEN 16
+
+/*
* Structure and flag definitions CXL Flash superpipe ioctls
*/
@@ -31,7 +36,7 @@ struct dk_cxlflash_hdr {
};
/*
- * Return flag definitions available to all ioctls
+ * Return flag definitions available to all superpipe ioctls
*
* Similar to the input flags, these are grown from the bottom-up with the
* intention that ioctl-specific return flag definitions would grow from the
@@ -151,7 +156,7 @@ struct dk_cxlflash_recover_afu {
__u64 reserved[8]; /* Reserved for future use */
};
-#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN 16
+#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN CXLFLASH_WWID_LEN
#define DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE 0x8000000000000000ULL
#define DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE 0x4000000000000000ULL
#define DK_CXLFLASH_MANAGE_LUN_ALL_PORTS_ACCESSIBLE 0x2000000000000000ULL
@@ -180,6 +185,10 @@ union cxlflash_ioctls {
#define CXL_MAGIC 0xCA
#define CXL_IOWR(_n, _s) _IOWR(CXL_MAGIC, _n, struct _s)
+/*
+ * CXL Flash superpipe ioctls start at base of the reserved CXL_MAGIC
+ * region (0x80) and grow upwards.
+ */
#define DK_CXLFLASH_ATTACH CXL_IOWR(0x80, dk_cxlflash_attach)
#define DK_CXLFLASH_USER_DIRECT CXL_IOWR(0x81, dk_cxlflash_udirect)
#define DK_CXLFLASH_RELEASE CXL_IOWR(0x82, dk_cxlflash_release)
@@ -191,4 +200,76 @@ union cxlflash_ioctls {
#define DK_CXLFLASH_VLUN_RESIZE CXL_IOWR(0x88, dk_cxlflash_resize)
#define DK_CXLFLASH_VLUN_CLONE CXL_IOWR(0x89, dk_cxlflash_clone)
+/*
+ * Structure and flag definitions CXL Flash host 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 */
+};
+
+/*
+ * Input flag definitions available to all host ioctls
+ *
+ * These are grown from the bottom-up with the intention that ioctl-specific
+ * input flag definitions would grow from the top-down, allowing the two sets
+ * to co-exist. While not required/enforced at this time, this provides future
+ * flexibility.
+ */
+#define HT_CXLFLASH_HOST_READ 0x0000000000000000ULL
+#define HT_CXLFLASH_HOST_WRITE 0x0000000000000001ULL
+
+#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
+
+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[CXLFLASH_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 */
+};
+
+#define HT_CXLFLASH_AFU_DEBUG_MAX_DATA_LEN 262144 /* 256K */
+#define HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN 12
+struct ht_cxlflash_afu_debug {
+ struct ht_cxlflash_hdr hdr; /* Common fields */
+ __u8 reserved8[4]; /* Reserved for future use */
+ __u8 afu_subcmd[HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN]; /* AFU subcommand,
+ * (pass through)
+ */
+ __u64 data_ea; /* Data buffer effective address */
+ __u32 data_len; /* Data buffer length */
+ __u32 reserved32; /* Reserved for future use */
+ __u64 reserved[8]; /* Reserved for future use */
+};
+
+union cxlflash_ht_ioctls {
+ struct ht_cxlflash_lun_provision lun_provision;
+ struct ht_cxlflash_afu_debug afu_debug;
+};
+
+#define MAX_HT_CXLFLASH_IOCTL_SZ (sizeof(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)
+#define HT_CXLFLASH_AFU_DEBUG CXL_IOWR(0xBE, ht_cxlflash_afu_debug)
+
+
#endif /* ifndef _CXLFLASH_IOCTL_H */