cxl/mbox: Move mailbox related driver state to its own data structure

'struct cxl_dev_state' makes too many assumptions about the capabilities
of a CXL device. In particular it assumes a CXL device has a mailbox and
all of the infrastructure and state that comes along with that.

In preparation for supporting accelerator / Type-2 devices that may not
have a mailbox and in general maintain a minimal core context structure,
make mailbox functionality a super-set of  'struct cxl_dev_state' with
'struct cxl_memdev_state'.

With this reorganization it allows for CXL devices that support HDM
decoder mapping, but not other general-expander / Type-3 capabilities,
to only enable that subset without the rest of the mailbox
infrastructure coming along for the ride.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168679260240.3436160.15520641540463704524.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

8 files changed, 336 insertions, 290 deletions

diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
index bea9cf31a12d..ab9d455e8579 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -182,7 +182,7 @@ static const char *cxl_mem_opcode_to_name(u16 opcode)
 
 /**
  * cxl_internal_send_cmd() - Kernel internal interface to send a mailbox command
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  * @mbox_cmd: initialized command to execute
  *
  * Context: Any context.
@@ -198,19 +198,19 @@ static const char *cxl_mem_opcode_to_name(u16 opcode)
  * error. While this distinction can be useful for commands from userspace, the
  * kernel will only be able to use results when both are successful.
  */
-int cxl_internal_send_cmd(struct cxl_dev_state *cxlds,
+int cxl_internal_send_cmd(struct cxl_memdev_state *mds,
 			  struct cxl_mbox_cmd *mbox_cmd)
 {
 	size_t out_size, min_out;
 	int rc;
 
-	if (mbox_cmd->size_in > cxlds->payload_size ||
-	    mbox_cmd->size_out > cxlds->payload_size)
+	if (mbox_cmd->size_in > mds->payload_size ||
+	    mbox_cmd->size_out > mds->payload_size)
 		return -E2BIG;
 
 	out_size = mbox_cmd->size_out;
 	min_out = mbox_cmd->min_out;
-	rc = cxlds->mbox_send(cxlds, mbox_cmd);
+	rc = mds->mbox_send(mds, mbox_cmd);
 	/*
 	 * EIO is reserved for a payload size mismatch and mbox_send()
 	 * may not return this error.
@@ -297,7 +297,7 @@ static bool cxl_payload_from_user_allowed(u16 opcode, void *payload_in)
 }
 
 static int cxl_mbox_cmd_ctor(struct cxl_mbox_cmd *mbox,
-			     struct cxl_dev_state *cxlds, u16 opcode,
+			     struct cxl_memdev_state *mds, u16 opcode,
 			     size_t in_size, size_t out_size, u64 in_payload)
 {
 	*mbox = (struct cxl_mbox_cmd) {
@@ -312,7 +312,7 @@ static int cxl_mbox_cmd_ctor(struct cxl_mbox_cmd *mbox,
 			return PTR_ERR(mbox->payload_in);
 
 		if (!cxl_payload_from_user_allowed(opcode, mbox->payload_in)) {
-			dev_dbg(cxlds->dev, "%s: input payload not allowed\n",
+			dev_dbg(mds->cxlds.dev, "%s: input payload not allowed\n",
 				cxl_mem_opcode_to_name(opcode));
 			kvfree(mbox->payload_in);
 			return -EBUSY;
@@ -321,7 +321,7 @@ static int cxl_mbox_cmd_ctor(struct cxl_mbox_cmd *mbox,
 
 	/* Prepare to handle a full payload for variable sized output */
 	if (out_size == CXL_VARIABLE_PAYLOAD)
-		mbox->size_out = cxlds->payload_size;
+		mbox->size_out = mds->payload_size;
 	else
 		mbox->size_out = out_size;
 
@@ -343,7 +343,7 @@ static void cxl_mbox_cmd_dtor(struct cxl_mbox_cmd *mbox)
 
 static int cxl_to_mem_cmd_raw(struct cxl_mem_command *mem_cmd,
 			      const struct cxl_send_command *send_cmd,
-			      struct cxl_dev_state *cxlds)
+			      struct cxl_memdev_state *mds)
 {
 	if (send_cmd->raw.rsvd)
 		return -EINVAL;
@@ -353,13 +353,13 @@ static int cxl_to_mem_cmd_raw(struct cxl_mem_command *mem_cmd,
 	 * gets passed along without further checking, so it must be
 	 * validated here.
 	 */
-	if (send_cmd->out.size > cxlds->payload_size)
+	if (send_cmd->out.size > mds->payload_size)
 		return -EINVAL;
 
 	if (!cxl_mem_raw_command_allowed(send_cmd->raw.opcode))
 		return -EPERM;
 
-	dev_WARN_ONCE(cxlds->dev, true, "raw command path used\n");
+	dev_WARN_ONCE(mds->cxlds.dev, true, "raw command path used\n");
 
 	*mem_cmd = (struct cxl_mem_command) {
 		.info = {
@@ -375,7 +375,7 @@ static int cxl_to_mem_cmd_raw(struct cxl_mem_command *mem_cmd,
 
 static int cxl_to_mem_cmd(struct cxl_mem_command *mem_cmd,
 			  const struct cxl_send_command *send_cmd,
-			  struct cxl_dev_state *cxlds)
+			  struct cxl_memdev_state *mds)
 {
 	struct cxl_mem_command *c = &cxl_mem_commands[send_cmd->id];
 	const struct cxl_command_info *info = &c->info;
@@ -390,11 +390,11 @@ static int cxl_to_mem_cmd(struct cxl_mem_command *mem_cmd,
 		return -EINVAL;
 
 	/* Check that the command is enabled for hardware */
-	if (!test_bit(info->id, cxlds->enabled_cmds))
+	if (!test_bit(info->id, mds->enabled_cmds))
 		return -ENOTTY;
 
 	/* Check that the command is not claimed for exclusive kernel use */
-	if (test_bit(info->id, cxlds->exclusive_cmds))
+	if (test_bit(info->id, mds->exclusive_cmds))
 		return -EBUSY;
 
 	/* Check the input buffer is the expected size */
@@ -423,7 +423,7 @@ static int cxl_to_mem_cmd(struct cxl_mem_command *mem_cmd,
 /**
  * cxl_validate_cmd_from_user() - Check fields for CXL_MEM_SEND_COMMAND.
  * @mbox_cmd: Sanitized and populated &struct cxl_mbox_cmd.
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  * @send_cmd: &struct cxl_send_command copied in from userspace.
  *
  * Return:
@@ -438,7 +438,7 @@ static int cxl_to_mem_cmd(struct cxl_mem_command *mem_cmd,
  * safe to send to the hardware.
  */
 static int cxl_validate_cmd_from_user(struct cxl_mbox_cmd *mbox_cmd,
-				      struct cxl_dev_state *cxlds,
+				      struct cxl_memdev_state *mds,
 				      const struct cxl_send_command *send_cmd)
 {
 	struct cxl_mem_command mem_cmd;
@@ -452,20 +452,20 @@ static int cxl_validate_cmd_from_user(struct cxl_mbox_cmd *mbox_cmd,
 	 * supports, but output can be arbitrarily large (simply write out as
 	 * much data as the hardware provides).
 	 */
-	if (send_cmd->in.size > cxlds->payload_size)
+	if (send_cmd->in.size > mds->payload_size)
 		return -EINVAL;
 
 	/* Sanitize and construct a cxl_mem_command */
 	if (send_cmd->id == CXL_MEM_COMMAND_ID_RAW)
-		rc = cxl_to_mem_cmd_raw(&mem_cmd, send_cmd, cxlds);
+		rc = cxl_to_mem_cmd_raw(&mem_cmd, send_cmd, mds);
 	else
-		rc = cxl_to_mem_cmd(&mem_cmd, send_cmd, cxlds);
+		rc = cxl_to_mem_cmd(&mem_cmd, send_cmd, mds);
 
 	if (rc)
 		return rc;
 
 	/* Sanitize and construct a cxl_mbox_cmd */
-	return cxl_mbox_cmd_ctor(mbox_cmd, cxlds, mem_cmd.opcode,
+	return cxl_mbox_cmd_ctor(mbox_cmd, mds, mem_cmd.opcode,
 				 mem_cmd.info.size_in, mem_cmd.info.size_out,
 				 send_cmd->in.payload);
 }
@@ -473,6 +473,7 @@ static int cxl_validate_cmd_from_user(struct cxl_mbox_cmd *mbox_cmd,
 int cxl_query_cmd(struct cxl_memdev *cxlmd,
 		  struct cxl_mem_query_commands __user *q)
 {
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct device *dev = &cxlmd->dev;
 	struct cxl_mem_command *cmd;
 	u32 n_commands;
@@ -494,9 +495,9 @@ int cxl_query_cmd(struct cxl_memdev *cxlmd,
 	cxl_for_each_cmd(cmd) {
 		struct cxl_command_info info = cmd->info;
 
-		if (test_bit(info.id, cxlmd->cxlds->enabled_cmds))
+		if (test_bit(info.id, mds->enabled_cmds))
 			info.flags |= CXL_MEM_COMMAND_FLAG_ENABLED;
-		if (test_bit(info.id, cxlmd->cxlds->exclusive_cmds))
+		if (test_bit(info.id, mds->exclusive_cmds))
 			info.flags |= CXL_MEM_COMMAND_FLAG_EXCLUSIVE;
 
 		if (copy_to_user(&q->commands[j++], &info, sizeof(info)))
@@ -511,7 +512,7 @@ int cxl_query_cmd(struct cxl_memdev *cxlmd,
 
 /**
  * handle_mailbox_cmd_from_user() - Dispatch a mailbox command for userspace.
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  * @mbox_cmd: The validated mailbox command.
  * @out_payload: Pointer to userspace's output payload.
  * @size_out: (Input) Max payload size to copy out.
@@ -532,12 +533,12 @@ int cxl_query_cmd(struct cxl_memdev *cxlmd,
  *
  * See cxl_send_cmd().
  */
-static int handle_mailbox_cmd_from_user(struct cxl_dev_state *cxlds,
+static int handle_mailbox_cmd_from_user(struct cxl_memdev_state *mds,
 					struct cxl_mbox_cmd *mbox_cmd,
 					u64 out_payload, s32 *size_out,
 					u32 *retval)
 {
-	struct device *dev = cxlds->dev;
+	struct device *dev = mds->cxlds.dev;
 	int rc;
 
 	dev_dbg(dev,
@@ -547,7 +548,7 @@ static int handle_mailbox_cmd_from_user(struct cxl_dev_state *cxlds,
 		cxl_mem_opcode_to_name(mbox_cmd->opcode),
 		mbox_cmd->opcode, mbox_cmd->size_in);
 
-	rc = cxlds->mbox_send(cxlds, mbox_cmd);
+	rc = mds->mbox_send(mds, mbox_cmd);
 	if (rc)
 		goto out;
 
@@ -576,7 +577,7 @@ out:
 
 int cxl_send_cmd(struct cxl_memdev *cxlmd, struct cxl_send_command __user *s)
 {
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct device *dev = &cxlmd->dev;
 	struct cxl_send_command send;
 	struct cxl_mbox_cmd mbox_cmd;
@@ -587,11 +588,11 @@ int cxl_send_cmd(struct cxl_memdev *cxlmd, struct cxl_send_command __user *s)
 	if (copy_from_user(&send, s, sizeof(send)))
 		return -EFAULT;
 
-	rc = cxl_validate_cmd_from_user(&mbox_cmd, cxlmd->cxlds, &send);
+	rc = cxl_validate_cmd_from_user(&mbox_cmd, mds, &send);
 	if (rc)
 		return rc;
 
-	rc = handle_mailbox_cmd_from_user(cxlds, &mbox_cmd, send.out.payload,
+	rc = handle_mailbox_cmd_from_user(mds, &mbox_cmd, send.out.payload,
 					  &send.out.size, &send.retval);
 	if (rc)
 		return rc;
@@ -602,13 +603,14 @@ int cxl_send_cmd(struct cxl_memdev *cxlmd, struct cxl_send_command __user *s)
 	return 0;
 }
 
-static int cxl_xfer_log(struct cxl_dev_state *cxlds, uuid_t *uuid, u32 *size, u8 *out)
+static int cxl_xfer_log(struct cxl_memdev_state *mds, uuid_t *uuid,
+			u32 *size, u8 *out)
 {
 	u32 remaining = *size;
 	u32 offset = 0;
 
 	while (remaining) {
-		u32 xfer_size = min_t(u32, remaining, cxlds->payload_size);
+		u32 xfer_size = min_t(u32, remaining, mds->payload_size);
 		struct cxl_mbox_cmd mbox_cmd;
 		struct cxl_mbox_get_log log;
 		int rc;
@@ -627,7 +629,7 @@ static int cxl_xfer_log(struct cxl_dev_state *cxlds, uuid_t *uuid, u32 *size, u8
 			.payload_out = out,
 		};
 
-		rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+		rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 
 		/*
 		 * The output payload length that indicates the number
@@ -654,17 +656,18 @@ static int cxl_xfer_log(struct cxl_dev_state *cxlds, uuid_t *uuid, u32 *size, u8
 
 /**
  * cxl_walk_cel() - Walk through the Command Effects Log.
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  * @size: Length of the Command Effects Log.
  * @cel: CEL
  *
  * Iterate over each entry in the CEL and determine if the driver supports the
  * command. If so, the command is enabled for the device and can be used later.
  */
-static void cxl_walk_cel(struct cxl_dev_state *cxlds, size_t size, u8 *cel)
+static void cxl_walk_cel(struct cxl_memdev_state *mds, size_t size, u8 *cel)
 {
 	struct cxl_cel_entry *cel_entry;
 	const int cel_entries = size / sizeof(*cel_entry);
+	struct device *dev = mds->cxlds.dev;
 	int i;
 
 	cel_entry = (struct cxl_cel_entry *) cel;
@@ -674,39 +677,39 @@ static void cxl_walk_cel(struct cxl_dev_state *cxlds, size_t size, u8 *cel)
 		struct cxl_mem_command *cmd = cxl_mem_find_command(opcode);
 
 		if (!cmd && !cxl_is_poison_command(opcode)) {
-			dev_dbg(cxlds->dev,
+			dev_dbg(dev,
 				"Opcode 0x%04x unsupported by driver\n", opcode);
 			continue;
 		}
 
 		if (cmd)
-			set_bit(cmd->info.id, cxlds->enabled_cmds);
+			set_bit(cmd->info.id, mds->enabled_cmds);
 
 		if (cxl_is_poison_command(opcode))
-			cxl_set_poison_cmd_enabled(&cxlds->poison, opcode);
+			cxl_set_poison_cmd_enabled(&mds->poison, opcode);
 
-		dev_dbg(cxlds->dev, "Opcode 0x%04x enabled\n", opcode);
+		dev_dbg(dev, "Opcode 0x%04x enabled\n", opcode);
 	}
 }
 
-static struct cxl_mbox_get_supported_logs *cxl_get_gsl(struct cxl_dev_state *cxlds)
+static struct cxl_mbox_get_supported_logs *cxl_get_gsl(struct cxl_memdev_state *mds)
 {
 	struct cxl_mbox_get_supported_logs *ret;
 	struct cxl_mbox_cmd mbox_cmd;
 	int rc;
 
-	ret = kvmalloc(cxlds->payload_size, GFP_KERNEL);
+	ret = kvmalloc(mds->payload_size, GFP_KERNEL);
 	if (!ret)
 		return ERR_PTR(-ENOMEM);
 
 	mbox_cmd = (struct cxl_mbox_cmd) {
 		.opcode = CXL_MBOX_OP_GET_SUPPORTED_LOGS,
-		.size_out = cxlds->payload_size,
+		.size_out = mds->payload_size,
 		.payload_out = ret,
 		/* At least the record number field must be valid */
 		.min_out = 2,
 	};
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0) {
 		kvfree(ret);
 		return ERR_PTR(rc);
@@ -729,22 +732,22 @@ static const uuid_t log_uuid[] = {
 
 /**
  * cxl_enumerate_cmds() - Enumerate commands for a device.
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  *
  * Returns 0 if enumerate completed successfully.
  *
  * CXL devices have optional support for certain commands. This function will
  * determine the set of supported commands for the hardware and update the
- * enabled_cmds bitmap in the @cxlds.
+ * enabled_cmds bitmap in the @mds.
  */
-int cxl_enumerate_cmds(struct cxl_dev_state *cxlds)
+int cxl_enumerate_cmds(struct cxl_memdev_state *mds)
 {
 	struct cxl_mbox_get_supported_logs *gsl;
-	struct device *dev = cxlds->dev;
+	struct device *dev = mds->cxlds.dev;
 	struct cxl_mem_command *cmd;
 	int i, rc;
 
-	gsl = cxl_get_gsl(cxlds);
+	gsl = cxl_get_gsl(mds);
 	if (IS_ERR(gsl))
 		return PTR_ERR(gsl);
 
@@ -765,19 +768,19 @@ int cxl_enumerate_cmds(struct cxl_dev_state *cxlds)
 			goto out;
 		}
 
-		rc = cxl_xfer_log(cxlds, &uuid, &size, log);
+		rc = cxl_xfer_log(mds, &uuid, &size, log);
 		if (rc) {
 			kvfree(log);
 			goto out;
 		}
 
-		cxl_walk_cel(cxlds, size, log);
+		cxl_walk_cel(mds, size, log);
 		kvfree(log);
 
 		/* In case CEL was bogus, enable some default commands. */
 		cxl_for_each_cmd(cmd)
 			if (cmd->flags & CXL_CMD_FLAG_FORCE_ENABLE)
-				set_bit(cmd->info.id, cxlds->enabled_cmds);
+				set_bit(cmd->info.id, mds->enabled_cmds);
 
 		/* Found the required CEL */
 		rc = 0;
@@ -838,7 +841,7 @@ static void cxl_event_trace_record(const struct cxl_memdev *cxlmd,
 	}
 }
 
-static int cxl_clear_event_record(struct cxl_dev_state *cxlds,
+static int cxl_clear_event_record(struct cxl_memdev_state *mds,
 				  enum cxl_event_log_type log,
 				  struct cxl_get_event_payload *get_pl)
 {
@@ -852,9 +855,9 @@ static int cxl_clear_event_record(struct cxl_dev_state *cxlds,
 	int i;
 
 	/* Payload size may limit the max handles */
-	if (pl_size > cxlds->payload_size) {
-		max_handles = (cxlds->payload_size - sizeof(*payload)) /
-				sizeof(__le16);
+	if (pl_size > mds->payload_size) {
+		max_handles = (mds->payload_size - sizeof(*payload)) /
+			      sizeof(__le16);
 		pl_size = struct_size(payload, handles, max_handles);
 	}
 
@@ -879,12 +882,12 @@ static int cxl_clear_event_record(struct cxl_dev_state *cxlds,
 	i = 0;
 	for (cnt = 0; cnt < total; cnt++) {
 		payload->handles[i++] = get_pl->records[cnt].hdr.handle;
-		dev_dbg(cxlds->dev, "Event log '%d': Clearing %u\n",
-			log, le16_to_cpu(payload->handles[i]));
+		dev_dbg(mds->cxlds.dev, "Event log '%d': Clearing %u\n", log,
+			le16_to_cpu(payload->handles[i]));
 
 		if (i == max_handles) {
 			payload->nr_recs = i;
-			rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+			rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 			if (rc)
 				goto free_pl;
 			i = 0;
@@ -895,7 +898,7 @@ static int cxl_clear_event_record(struct cxl_dev_state *cxlds,
 	if (i) {
 		payload->nr_recs = i;
 		mbox_cmd.size_in = struct_size(payload, handles, i);
-		rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+		rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 		if (rc)
 			goto free_pl;
 	}
@@ -905,32 +908,34 @@ free_pl:
 	return rc;
 }
 
-static void cxl_mem_get_records_log(struct cxl_dev_state *cxlds,
+static void cxl_mem_get_records_log(struct cxl_memdev_state *mds,
 				    enum cxl_event_log_type type)
 {
+	struct cxl_memdev *cxlmd = mds->cxlds.cxlmd;
+	struct device *dev = mds->cxlds.dev;
 	struct cxl_get_event_payload *payload;
 	struct cxl_mbox_cmd mbox_cmd;
 	u8 log_type = type;
 	u16 nr_rec;
 
-	mutex_lock(&cxlds->event.log_lock);
-	payload = cxlds->event.buf;
+	mutex_lock(&mds->event.log_lock);
+	payload = mds->event.buf;
 
 	mbox_cmd = (struct cxl_mbox_cmd) {
 		.opcode = CXL_MBOX_OP_GET_EVENT_RECORD,
 		.payload_in = &log_type,
 		.size_in = sizeof(log_type),
 		.payload_out = payload,
-		.size_out = cxlds->payload_size,
+		.size_out = mds->payload_size,
 		.min_out = struct_size(payload, records, 0),
 	};
 
 	do {
 		int rc, i;
 
-		rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+		rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 		if (rc) {
-			dev_err_ratelimited(cxlds->dev,
+			dev_err_ratelimited(dev,
 				"Event log '%d': Failed to query event records : %d",
 				type, rc);
 			break;
@@ -941,27 +946,27 @@ static void cxl_mem_get_records_log(struct cxl_dev_state *cxlds,
 			break;
 
 		for (i = 0; i < nr_rec; i++)
-			cxl_event_trace_record(cxlds->cxlmd, type,
+			cxl_event_trace_record(cxlmd, type,
 					       &payload->records[i]);
 
 		if (payload->flags & CXL_GET_EVENT_FLAG_OVERFLOW)
-			trace_cxl_overflow(cxlds->cxlmd, type, payload);
+			trace_cxl_overflow(cxlmd, type, payload);
 
-		rc = cxl_clear_event_record(cxlds, type, payload);
+		rc = cxl_clear_event_record(mds, type, payload);
 		if (rc) {
-			dev_err_ratelimited(cxlds->dev,
+			dev_err_ratelimited(dev,
 				"Event log '%d': Failed to clear events : %d",
 				type, rc);
 			break;
 		}
 	} while (nr_rec);
 
-	mutex_unlock(&cxlds->event.log_lock);
+	mutex_unlock(&mds->event.log_lock);
 }
 
 /**
  * cxl_mem_get_event_records - Get Event Records from the device
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  * @status: Event Status register value identifying which events are available.
  *
  * Retrieve all event records available on the device, report them as trace
@@ -970,24 +975,24 @@ static void cxl_mem_get_records_log(struct cxl_dev_state *cxlds,
  * See CXL rev 3.0 @8.2.9.2.2 Get Event Records
  * See CXL rev 3.0 @8.2.9.2.3 Clear Event Records
  */
-void cxl_mem_get_event_records(struct cxl_dev_state *cxlds, u32 status)
+void cxl_mem_get_event_records(struct cxl_memdev_state *mds, u32 status)
 {
-	dev_dbg(cxlds->dev, "Reading event logs: %x\n", status);
+	dev_dbg(mds->cxlds.dev, "Reading event logs: %x\n", status);
 
 	if (status & CXLDEV_EVENT_STATUS_FATAL)
-		cxl_mem_get_records_log(cxlds, CXL_EVENT_TYPE_FATAL);
+		cxl_mem_get_records_log(mds, CXL_EVENT_TYPE_FATAL);
 	if (status & CXLDEV_EVENT_STATUS_FAIL)
-		cxl_mem_get_records_log(cxlds, CXL_EVENT_TYPE_FAIL);
+		cxl_mem_get_records_log(mds, CXL_EVENT_TYPE_FAIL);
 	if (status & CXLDEV_EVENT_STATUS_WARN)
-		cxl_mem_get_records_log(cxlds, CXL_EVENT_TYPE_WARN);
+		cxl_mem_get_records_log(mds, CXL_EVENT_TYPE_WARN);
 	if (status & CXLDEV_EVENT_STATUS_INFO)
-		cxl_mem_get_records_log(cxlds, CXL_EVENT_TYPE_INFO);
+		cxl_mem_get_records_log(mds, CXL_EVENT_TYPE_INFO);
 }
 EXPORT_SYMBOL_NS_GPL(cxl_mem_get_event_records, CXL);
 
 /**
  * cxl_mem_get_partition_info - Get partition info
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  *
  * Retrieve the current partition info for the device specified.  The active
  * values are the current capacity in bytes.  If not 0, the 'next' values are
@@ -997,7 +1002,7 @@ EXPORT_SYMBOL_NS_GPL(cxl_mem_get_event_records, CXL);
  *
  * See CXL @8.2.9.5.2.1 Get Partition Info
  */
-static int cxl_mem_get_partition_info(struct cxl_dev_state *cxlds)
+static int cxl_mem_get_partition_info(struct cxl_memdev_state *mds)
 {
 	struct cxl_mbox_get_partition_info pi;
 	struct cxl_mbox_cmd mbox_cmd;
@@ -1008,17 +1013,17 @@ static int cxl_mem_get_partition_info(struct cxl_dev_state *cxlds)
 		.size_out = sizeof(pi),
 		.payload_out = &pi,
 	};
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc)
 		return rc;
 
-	cxlds->active_volatile_bytes =
+	mds->active_volatile_bytes =
 		le64_to_cpu(pi.active_volatile_cap) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->active_persistent_bytes =
+	mds->active_persistent_bytes =
 		le64_to_cpu(pi.active_persistent_cap) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->next_volatile_bytes =
+	mds->next_volatile_bytes =
 		le64_to_cpu(pi.next_volatile_cap) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->next_persistent_bytes =
+	mds->next_persistent_bytes =
 		le64_to_cpu(pi.next_volatile_cap) * CXL_CAPACITY_MULTIPLIER;
 
 	return 0;
@@ -1026,14 +1031,14 @@ static int cxl_mem_get_partition_info(struct cxl_dev_state *cxlds)
 
 /**
  * cxl_dev_state_identify() - Send the IDENTIFY command to the device.
- * @cxlds: The device data for the operation
+ * @mds: The driver data for the operation
  *
  * Return: 0 if identify was executed successfully or media not ready.
  *
  * This will dispatch the identify command to the device and on success populate
  * structures to be exported to sysfs.
  */
-int cxl_dev_state_identify(struct cxl_dev_state *cxlds)
+int cxl_dev_state_identify(struct cxl_memdev_state *mds)
 {
 	/* See CXL 2.0 Table 175 Identify Memory Device Output Payload */
 	struct cxl_mbox_identify id;
@@ -1041,7 +1046,7 @@ int cxl_dev_state_identify(struct cxl_dev_state *cxlds)
 	u32 val;
 	int rc;
 
-	if (!cxlds->media_ready)
+	if (!mds->cxlds.media_ready)
 		return 0;
 
 	mbox_cmd = (struct cxl_mbox_cmd) {
@@ -1049,25 +1054,26 @@ int cxl_dev_state_identify(struct cxl_dev_state *cxlds)
 		.size_out = sizeof(id),
 		.payload_out = &id,
 	};
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0)
 		return rc;
 
-	cxlds->total_bytes =
+	mds->total_bytes =
 		le64_to_cpu(id.total_capacity) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->volatile_only_bytes =
+	mds->volatile_only_bytes =
 		le64_to_cpu(id.volatile_capacity) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->persistent_only_bytes =
+	mds->persistent_only_bytes =
 		le64_to_cpu(id.persistent_capacity) * CXL_CAPACITY_MULTIPLIER;
-	cxlds->partition_align_bytes =
+	mds->partition_align_bytes =
 		le64_to_cpu(id.partition_align) * CXL_CAPACITY_MULTIPLIER;
 
-	cxlds->lsa_size = le32_to_cpu(id.lsa_size);
-	memcpy(cxlds->firmware_version, id.fw_revision, sizeof(id.fw_revision));
+	mds->lsa_size = le32_to_cpu(id.lsa_size);
+	memcpy(mds->firmware_version, id.fw_revision,
+	       sizeof(id.fw_revision));
 
-	if (test_bit(CXL_POISON_ENABLED_LIST, cxlds->poison.enabled_cmds)) {
+	if (test_bit(CXL_POISON_ENABLED_LIST, mds->poison.enabled_cmds)) {
 		val = get_unaligned_le24(id.poison_list_max_mer);
-		cxlds->poison.max_errors = min_t(u32, val, CXL_POISON_LIST_MAX);
+		mds->poison.max_errors = min_t(u32, val, CXL_POISON_LIST_MAX);
 	}
 
 	return 0;
@@ -1100,8 +1106,9 @@ static int add_dpa_res(struct device *dev, struct resource *parent,
 	return 0;
 }
 
-int cxl_mem_create_range_info(struct cxl_dev_state *cxlds)
+int cxl_mem_create_range_info(struct cxl_memdev_state *mds)
 {
+	struct cxl_dev_state *cxlds = &mds->cxlds;
 	struct device *dev = cxlds->dev;
 	int rc;
 
@@ -1113,35 +1120,35 @@ int cxl_mem_create_range_info(struct cxl_dev_state *cxlds)
 	}
 
 	cxlds->dpa_res =
-		(struct resource)DEFINE_RES_MEM(0, cxlds->total_bytes);
+		(struct resource)DEFINE_RES_MEM(0, mds->total_bytes);
 
-	if (cxlds->partition_align_bytes == 0) {
+	if (mds->partition_align_bytes == 0) {
 		rc = add_dpa_res(dev, &cxlds->dpa_res, &cxlds->ram_res, 0,
-				 cxlds->volatile_only_bytes, "ram");
+				 mds->volatile_only_bytes, "ram");
 		if (rc)
 			return rc;
 		return add_dpa_res(dev, &cxlds->dpa_res, &cxlds->pmem_res,
-				   cxlds->volatile_only_bytes,
-				   cxlds->persistent_only_bytes, "pmem");
+				   mds->volatile_only_bytes,
+				   mds->persistent_only_bytes, "pmem");
 	}
 
-	rc = cxl_mem_get_partition_info(cxlds);
+	rc = cxl_mem_get_partition_info(mds);
 	if (rc) {
 		dev_err(dev, "Failed to query partition information\n");
 		return rc;
 	}
 
 	rc = add_dpa_res(dev, &cxlds->dpa_res, &cxlds->ram_res, 0,
-			 cxlds->active_volatile_bytes, "ram");
+			 mds->active_volatile_bytes, "ram");
 	if (rc)
 		return rc;
 	return add_dpa_res(dev, &cxlds->dpa_res, &cxlds->pmem_res,
-			   cxlds->active_volatile_bytes,
-			   cxlds->active_persistent_bytes, "pmem");
+			   mds->active_volatile_bytes,
+			   mds->active_persistent_bytes, "pmem");
 }
 EXPORT_SYMBOL_NS_GPL(cxl_mem_create_range_info, CXL);
 
-int cxl_set_timestamp(struct cxl_dev_state *cxlds)
+int cxl_set_timestamp(struct cxl_memdev_state *mds)
 {
 	struct cxl_mbox_cmd mbox_cmd;
 	struct cxl_mbox_set_timestamp_in pi;
@@ -1154,7 +1161,7 @@ int cxl_set_timestamp(struct cxl_dev_state *cxlds)
 		.payload_in = &pi,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	/*
 	 * Command is optional. Devices may have another way of providing
 	 * a timestamp, or may return all 0s in timestamp fields.
@@ -1170,18 +1177,18 @@ EXPORT_SYMBOL_NS_GPL(cxl_set_timestamp, CXL);
 int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
 		       struct cxl_region *cxlr)
 {
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_poison_out *po;
 	struct cxl_mbox_poison_in pi;
 	struct cxl_mbox_cmd mbox_cmd;
 	int nr_records = 0;
 	int rc;
 
-	rc = mutex_lock_interruptible(&cxlds->poison.lock);
+	rc = mutex_lock_interruptible(&mds->poison.lock);
 	if (rc)
 		return rc;
 
-	po = cxlds->poison.list_out;
+	po = mds->poison.list_out;
 	pi.offset = cpu_to_le64(offset);
 	pi.length = cpu_to_le64(len / CXL_POISON_LEN_MULT);
 
@@ -1189,13 +1196,13 @@ int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
 		.opcode = CXL_MBOX_OP_GET_POISON,
 		.size_in = sizeof(pi),
 		.payload_in = &pi,
-		.size_out = cxlds->payload_size,
+		.size_out = mds->payload_size,
 		.payload_out = po,
 		.min_out = struct_size(po, record, 0),
 	};
 
 	do {
-		rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+		rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 		if (rc)
 			break;
 
@@ -1206,14 +1213,14 @@ int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
 
 		/* Protect against an uncleared _FLAG_MORE */
 		nr_records = nr_records + le16_to_cpu(po->count);
-		if (nr_records >= cxlds->poison.max_errors) {
+		if (nr_records >= mds->poison.max_errors) {
 			dev_dbg(&cxlmd->dev, "Max Error Records reached: %d\n",
 				nr_records);
 			break;
 		}
 	} while (po->flags & CXL_POISON_FLAG_MORE);
 
-	mutex_unlock(&cxlds->poison.lock);
+	mutex_unlock(&mds->poison.lock);
 	return rc;
 }
 EXPORT_SYMBOL_NS_GPL(cxl_mem_get_poison, CXL);
@@ -1223,52 +1230,52 @@ static void free_poison_buf(void *buf)
 	kvfree(buf);
 }
 
-/* Get Poison List output buffer is protected by cxlds->poison.lock */
-static int cxl_poison_alloc_buf(struct cxl_dev_state *cxlds)
+/* Get Poison List output buffer is protected by mds->poison.lock */
+static int cxl_poison_alloc_buf(struct cxl_memdev_state *mds)
 {
-	cxlds->poison.list_out = kvmalloc(cxlds->payload_size, GFP_KERNEL);
-	if (!cxlds->poison.list_out)
+	mds->poison.list_out = kvmalloc(mds->payload_size, GFP_KERNEL);
+	if (!mds->poison.list_out)
 		return -ENOMEM;
 
-	return devm_add_action_or_reset(cxlds->dev, free_poison_buf,
-					cxlds->poison.list_out);
+	return devm_add_action_or_reset(mds->cxlds.dev, free_poison_buf,
+					mds->poison.list_out);
 }
 
-int cxl_poison_state_init(struct cxl_dev_state *cxlds)
+int cxl_poison_state_init(struct cxl_memdev_state *mds)
 {
 	int rc;
 
-	if (!test_bit(CXL_POISON_ENABLED_LIST, cxlds->poison.enabled_cmds))
+	if (!test_bit(CXL_POISON_ENABLED_LIST, mds->poison.enabled_cmds))
 		return 0;
 
-	rc = cxl_poison_alloc_buf(cxlds);
+	rc = cxl_poison_alloc_buf(mds);
 	if (rc) {
-		clear_bit(CXL_POISON_ENABLED_LIST, cxlds->poison.enabled_cmds);
+		clear_bit(CXL_POISON_ENABLED_LIST, mds->poison.enabled_cmds);
 		return rc;
 	}
 
-	mutex_init(&cxlds->poison.lock);
+	mutex_init(&mds->poison.lock);
 	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(cxl_poison_state_init, CXL);
 
-struct cxl_dev_state *cxl_dev_state_create(struct device *dev)
+struct cxl_memdev_state *cxl_memdev_state_create(struct device *dev)
 {
-	struct cxl_dev_state *cxlds;
+	struct cxl_memdev_state *mds;
 
-	cxlds = devm_kzalloc(dev, sizeof(*cxlds), GFP_KERNEL);
-	if (!cxlds) {
+	mds = devm_kzalloc(dev, sizeof(*mds), GFP_KERNEL);
+	if (!mds) {
 		dev_err(dev, "No memory available\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
-	mutex_init(&cxlds->mbox_mutex);
-	mutex_init(&cxlds->event.log_lock);
-	cxlds->dev = dev;
+	mutex_init(&mds->mbox_mutex);
+	mutex_init(&mds->event.log_lock);
+	mds->cxlds.dev = dev;
 
-	return cxlds;
+	return mds;
 }
-EXPORT_SYMBOL_NS_GPL(cxl_dev_state_create, CXL);
+EXPORT_SYMBOL_NS_GPL(cxl_memdev_state_create, CXL);
 
 void __init cxl_mbox_init(void)
 {
diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c
index 057a43267290..15434b1b4909 100644
--- a/drivers/cxl/core/memdev.c
+++ b/drivers/cxl/core/memdev.c
@@ -39,8 +39,9 @@ static ssize_t firmware_version_show(struct device *dev,
 {
 	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds);
 
-	return sysfs_emit(buf, "%.16s\n", cxlds->firmware_version);
+	return sysfs_emit(buf, "%.16s\n", mds->firmware_version);
 }
 static DEVICE_ATTR_RO(firmware_version);
 
@@ -49,8 +50,9 @@ static ssize_t payload_max_show(struct device *dev,
 {
 	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds);
 
-	return sysfs_emit(buf, "%zu\n", cxlds->payload_size);
+	return sysfs_emit(buf, "%zu\n", mds->payload_size);
 }
 static DEVICE_ATTR_RO(payload_max);
 
@@ -59,8 +61,9 @@ static ssize_t label_storage_size_show(struct device *dev,
 {
 	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds);
 
-	return sysfs_emit(buf, "%zu\n", cxlds->lsa_size);
+	return sysfs_emit(buf, "%zu\n", mds->lsa_size);
 }
 static DEVICE_ATTR_RO(label_storage_size);
 
@@ -231,7 +234,7 @@ static int cxl_validate_poison_dpa(struct cxl_memdev *cxlmd, u64 dpa)
 
 int cxl_inject_poison(struct cxl_memdev *cxlmd, u64 dpa)
 {
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_inject_poison inject;
 	struct cxl_poison_record record;
 	struct cxl_mbox_cmd mbox_cmd;
@@ -255,13 +258,13 @@ int cxl_inject_poison(struct cxl_memdev *cxlmd, u64 dpa)
 		.size_in = sizeof(inject),
 		.payload_in = &inject,
 	};
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc)
 		goto out;
 
 	cxlr = cxl_dpa_to_region(cxlmd, dpa);
 	if (cxlr)
-		dev_warn_once(cxlds->dev,
+		dev_warn_once(mds->cxlds.dev,
 			      "poison inject dpa:%#llx region: %s\n", dpa,
 			      dev_name(&cxlr->dev));
 
@@ -279,7 +282,7 @@ EXPORT_SYMBOL_NS_GPL(cxl_inject_poison, CXL);
 
 int cxl_clear_poison(struct cxl_memdev *cxlmd, u64 dpa)
 {
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_clear_poison clear;
 	struct cxl_poison_record record;
 	struct cxl_mbox_cmd mbox_cmd;
@@ -312,14 +315,15 @@ int cxl_clear_poison(struct cxl_memdev *cxlmd, u64 dpa)
 		.payload_in = &clear,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc)
 		goto out;
 
 	cxlr = cxl_dpa_to_region(cxlmd, dpa);
 	if (cxlr)
-		dev_warn_once(cxlds->dev, "poison clear dpa:%#llx region: %s\n",
-			      dpa, dev_name(&cxlr->dev));
+		dev_warn_once(mds->cxlds.dev,
+			      "poison clear dpa:%#llx region: %s\n", dpa,
+			      dev_name(&cxlr->dev));
 
 	record = (struct cxl_poison_record) {
 		.address = cpu_to_le64(dpa),
@@ -397,17 +401,18 @@ EXPORT_SYMBOL_NS_GPL(is_cxl_memdev, CXL);
 
 /**
  * set_exclusive_cxl_commands() - atomically disable user cxl commands
- * @cxlds: The device state to operate on
+ * @mds: The device state to operate on
  * @cmds: bitmap of commands to mark exclusive
  *
  * Grab the cxl_memdev_rwsem in write mode to flush in-flight
  * invocations of the ioctl path and then disable future execution of
  * commands with the command ids set in @cmds.
  */
-void set_exclusive_cxl_commands(struct cxl_dev_state *cxlds, unsigned long *cmds)
+void set_exclusive_cxl_commands(struct cxl_memdev_state *mds,
+				unsigned long *cmds)
 {
 	down_write(&cxl_memdev_rwsem);
-	bitmap_or(cxlds->exclusive_cmds, cxlds->exclusive_cmds, cmds,
+	bitmap_or(mds->exclusive_cmds, mds->exclusive_cmds, cmds,
 		  CXL_MEM_COMMAND_ID_MAX);
 	up_write(&cxl_memdev_rwsem);
 }
@@ -415,13 +420,14 @@ EXPORT_SYMBOL_NS_GPL(set_exclusive_cxl_commands, CXL);
 
 /**
  * clear_exclusive_cxl_commands() - atomically enable user cxl commands
- * @cxlds: The device state to modify
+ * @mds: The device state to modify
  * @cmds: bitmap of commands to mark available for userspace
  */
-void clear_exclusive_cxl_commands(struct cxl_dev_state *cxlds, unsigned long *cmds)
+void clear_exclusive_cxl_commands(struct cxl_memdev_state *mds,
+				  unsigned long *cmds)
 {
 	down_write(&cxl_memdev_rwsem);
-	bitmap_andnot(cxlds->exclusive_cmds, cxlds->exclusive_cmds, cmds,
+	bitmap_andnot(mds->exclusive_cmds, mds->exclusive_cmds, cmds,
 		      CXL_MEM_COMMAND_ID_MAX);
 	up_write(&cxl_memdev_rwsem);
 }
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h
index 66896fc6c43f..b1a72e01e4de 100644
--- a/drivers/cxl/cxlmem.h
+++ b/drivers/cxl/cxlmem.h
@@ -267,6 +267,34 @@ struct cxl_poison_state {
  * @cxl_dvsec: Offset to the PCIe device DVSEC
  * @rcd: operating in RCD mode (CXL 3.0 9.11.8 CXL Devices Attached to an RCH)
  * @media_ready: Indicate whether the device media is usable
+ * @dpa_res: Overall DPA resource tree for the device
+ * @pmem_res: Active Persistent memory capacity configuration
+ * @ram_res: Active Volatile memory capacity configuration
+ * @component_reg_phys: register base of component registers
+ * @serial: PCIe Device Serial Number
+ */
+struct cxl_dev_state {
+	struct device *dev;
+	struct cxl_memdev *cxlmd;
+	struct cxl_regs regs;
+	int cxl_dvsec;
+	bool rcd;
+	bool media_ready;
+	struct resource dpa_res;
+	struct resource pmem_res;
+	struct resource ram_res;
+	resource_size_t component_reg_phys;
+	u64 serial;
+};
+
+/**
+ * struct cxl_memdev_state - Generic Type-3 Memory Device Class driver data
+ *
+ * CXL 8.1.12.1 PCI Header - Class Code Register Memory Device defines
+ * common memory device functionality like the presence of a mailbox and
+ * the functionality related to that like Identify Memory Device and Get
+ * Partition Info
+ * @cxlds: Core driver state common across Type-2 and Type-3 devices
  * @payload_size: Size of space for payload
  *                (CXL 2.0 8.2.8.4.3 Mailbox Capabilities Register)
  * @lsa_size: Size of Label Storage Area
@@ -275,9 +303,6 @@ struct cxl_poison_state {
  * @firmware_version: Firmware version for the memory device.
  * @enabled_cmds: Hardware commands found enabled in CEL.
  * @exclusive_cmds: Commands that are kernel-internal only
- * @dpa_res: Overall DPA resource tree for the device
- * @pmem_res: Active Persistent memory capacity configuration
- * @ram_res: Active Volatile memory capacity configuration
  * @total_bytes: sum of all possible capacities
  * @volatile_only_bytes: hard volatile capacity
  * @persistent_only_bytes: hard persistent capacity
@@ -286,53 +311,41 @@ struct cxl_poison_state {
  * @active_persistent_bytes: sum of hard + soft persistent
  * @next_volatile_bytes: volatile capacity change pending device reset
  * @next_persistent_bytes: persistent capacity change pending device reset
- * @component_reg_phys: register base of component registers
- * @serial: PCIe Device Serial Number
  * @event: event log driver state
  * @poison: poison driver state info
  * @mbox_send: @dev specific transport for transmitting mailbox commands
  *
- * See section 8.2.9.5.2 Capacity Configuration and Label Storage for
+ * See CXL 3.0 8.2.9.8.2 Capacity Configuration and Label Storage for
  * details on capacity parameters.
  */
-struct cxl_dev_state {
-	struct device *dev;
-	struct cxl_memdev *cxlmd;
-
-	struct cxl_regs regs;
-	int cxl_dvsec;
-
-	bool rcd;
-	bool media_ready;
+struct cxl_memdev_state {
+	struct cxl_dev_state cxlds;
 	size_t payload_size;
 	size_t lsa_size;
 	struct mutex mbox_mutex; /* Protects device mailbox and firmware */
 	char firmware_version[0x10];
 	DECLARE_BITMAP(enabled_cmds, CXL_MEM_COMMAND_ID_MAX);
 	DECLARE_BITMAP(exclusive_cmds, CXL_MEM_COMMAND_ID_MAX);
-
-	struct resource dpa_res;
-	struct resource pmem_res;
-	struct resource ram_res;
 	u64 total_bytes;
 	u64 volatile_only_bytes;
 	u64 persistent_only_bytes;
 	u64 partition_align_bytes;
-
 	u64 active_volatile_bytes;
 	u64 active_persistent_bytes;
 	u64 next_volatile_bytes;
 	u64 next_persistent_bytes;
-
-	resource_size_t component_reg_phys;
-	u64 serial;
-
 	struct cxl_event_state event;
 	struct cxl_poison_state poison;
-
-	int (*mbox_send)(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd);
+	int (*mbox_send)(struct cxl_memdev_state *mds,
+			 struct cxl_mbox_cmd *cmd);
 };
 
+static inline struct cxl_memdev_state *
+to_cxl_memdev_state(struct cxl_dev_state *cxlds)
+{
+	return container_of(cxlds, struct cxl_memdev_state, cxlds);
+}
+
 enum cxl_opcode {
 	CXL_MBOX_OP_INVALID		= 0x0000,
 	CXL_MBOX_OP_RAW			= CXL_MBOX_OP_INVALID,
@@ -691,18 +704,20 @@ enum {
 	CXL_PMEM_SEC_PASS_USER,
 };
 
-int cxl_internal_send_cmd(struct cxl_dev_state *cxlds,
+int cxl_internal_send_cmd(struct cxl_memdev_state *mds,
 			  struct cxl_mbox_cmd *cmd);
-int cxl_dev_state_identify(struct cxl_dev_state *cxlds);
+int cxl_dev_state_identify(struct cxl_memdev_state *mds);
 int cxl_await_media_ready(struct cxl_dev_state *cxlds);
-int cxl_enumerate_cmds(struct cxl_dev_state *cxlds);
-int cxl_mem_create_range_info(struct cxl_dev_state *cxlds);
-struct cxl_dev_state *cxl_dev_state_create(struct device *dev);
-void set_exclusive_cxl_commands(struct cxl_dev_state *cxlds, unsigned long *cmds);
-void clear_exclusive_cxl_commands(struct cxl_dev_state *cxlds, unsigned long *cmds);
-void cxl_mem_get_event_records(struct cxl_dev_state *cxlds, u32 status);
-int cxl_set_timestamp(struct cxl_dev_state *cxlds);
-int cxl_poison_state_init(struct cxl_dev_state *cxlds);
+int cxl_enumerate_cmds(struct cxl_memdev_state *mds);
+int cxl_mem_create_range_info(struct cxl_memdev_state *mds);
+struct cxl_memdev_state *cxl_memdev_state_create(struct device *dev);
+void set_exclusive_cxl_commands(struct cxl_memdev_state *mds,
+				unsigned long *cmds);
+void clear_exclusive_cxl_commands(struct cxl_memdev_state *mds,
+				  unsigned long *cmds);
+void cxl_mem_get_event_records(struct cxl_memdev_state *mds, u32 status);
+int cxl_set_timestamp(struct cxl_memdev_state *mds);
+int cxl_poison_state_init(struct cxl_memdev_state *mds);
 int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
 		       struct cxl_region *cxlr);
 int cxl_trigger_poison_list(struct cxl_memdev *cxlmd);
diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index 519edd0eb196..584f9eec57e4 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -117,6 +117,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(cxl_poison_clear_fops, NULL,
 static int cxl_mem_probe(struct device *dev)
 {
 	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
 	struct device *endpoint_parent;
 	struct cxl_port *parent_port;
@@ -141,10 +142,10 @@ static int cxl_mem_probe(struct device *dev)
 	dentry = cxl_debugfs_create_dir(dev_name(dev));
 	debugfs_create_devm_seqfile(dev, "dpamem", dentry, cxl_mem_dpa_show);
 
-	if (test_bit(CXL_POISON_ENABLED_INJECT, cxlds->poison.enabled_cmds))
+	if (test_bit(CXL_POISON_ENABLED_INJECT, mds->poison.enabled_cmds))
 		debugfs_create_file("inject_poison", 0200, dentry, cxlmd,
 				    &cxl_poison_inject_fops);
-	if (test_bit(CXL_POISON_ENABLED_CLEAR, cxlds->poison.enabled_cmds))
+	if (test_bit(CXL_POISON_ENABLED_CLEAR, mds->poison.enabled_cmds))
 		debugfs_create_file("clear_poison", 0200, dentry, cxlmd,
 				    &cxl_poison_clear_fops);
 
@@ -227,9 +228,12 @@ static umode_t cxl_mem_visible(struct kobject *kobj, struct attribute *a, int n)
 {
 	if (a == &dev_attr_trigger_poison_list.attr) {
 		struct device *dev = kobj_to_dev(kobj);
+		struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
+		struct cxl_memdev_state *mds =
+			to_cxl_memdev_state(cxlmd->cxlds);
 
 		if (!test_bit(CXL_POISON_ENABLED_LIST,
-			      to_cxl_memdev(dev)->cxlds->poison.enabled_cmds))
+			      mds->poison.enabled_cmds))
 			return 0;
 	}
 	return a->mode;
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index 0872f2233ed0..4e2845b7331a 100644
--- a/drivers/cxl/pci.c
+++ b/drivers/cxl/pci.c
@@ -86,7 +86,7 @@ static int cxl_pci_mbox_wait_for_doorbell(struct cxl_dev_state *cxlds)
 
 /**
  * __cxl_pci_mbox_send_cmd() - Execute a mailbox command
- * @cxlds: The device state to communicate with.
+ * @mds: The memory device driver data
  * @mbox_cmd: Command to send to the memory device.
  *
  * Context: Any context. Expects mbox_mutex to be held.
@@ -106,16 +106,17 @@ static int cxl_pci_mbox_wait_for_doorbell(struct cxl_dev_state *cxlds)
  * not need to coordinate with each other. The driver only uses the primary
  * mailbox.
  */
-static int __cxl_pci_mbox_send_cmd(struct cxl_dev_state *cxlds,
+static int __cxl_pci_mbox_send_cmd(struct cxl_memdev_state *mds,
 				   struct cxl_mbox_cmd *mbox_cmd)
 {
+	struct cxl_dev_state *cxlds = &mds->cxlds;
 	void __iomem *payload = cxlds->regs.mbox + CXLDEV_MBOX_PAYLOAD_OFFSET;
 	struct device *dev = cxlds->dev;
 	u64 cmd_reg, status_reg;
 	size_t out_len;
 	int rc;
 
-	lockdep_assert_held(&cxlds->mbox_mutex);
+	lockdep_assert_held(&mds->mbox_mutex);
 
 	/*
 	 * Here are the steps from 8.2.8.4 of the CXL 2.0 spec.
@@ -196,8 +197,9 @@ static int __cxl_pci_mbox_send_cmd(struct cxl_dev_state *cxlds,
 		 * have requested less data than the hardware supplied even
 		 * within spec.
 		 */
-		size_t n = min3(mbox_cmd->size_out, cxlds->payload_size, out_len);
+		size_t n;
 
+		n = min3(mbox_cmd->size_out, mds->payload_size, out_len);
 		memcpy_fromio(mbox_cmd->payload_out, payload, n);
 		mbox_cmd->size_out = n;
 	} else {
@@ -207,20 +209,23 @@ static int __cxl_pci_mbox_send_cmd(struct cxl_dev_state *cxlds,
 	return 0;
 }
 
-static int cxl_pci_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+static int cxl_pci_mbox_send(struct cxl_memdev_state *mds,
+			     struct cxl_mbox_cmd *cmd)
 {
 	int rc;
 
-	mutex_lock_io(&cxlds->mbox_mutex);
-	rc = __cxl_pci_mbox_send_cmd(cxlds, cmd);
-	mutex_unlock(&cxlds->mbox_mutex);
+	mutex_lock_io(&mds->mbox_mutex);
+	rc = __cxl_pci_mbox_send_cmd(mds, cmd);
+	mutex_unlock(&mds->mbox_mutex);
 
 	return rc;
 }
 
-static int cxl_pci_setup_mailbox(struct cxl_dev_state *cxlds)
+static int cxl_pci_setup_mailbox(struct cxl_memdev_state *mds)
 {
+	struct cxl_dev_state *cxlds = &mds->cxlds;
 	const int cap = readl(cxlds->regs.mbox + CXLDEV_MBOX_CAPS_OFFSET);
+	struct device *dev = cxlds->dev;
 	unsigned long timeout;
 	u64 md_status;
 
@@ -234,8 +239,7 @@ static int cxl_pci_setup_mailbox(struct cxl_dev_state *cxlds)
 	} while (!time_after(jiffies, timeout));
 
 	if (!(md_status & CXLMDEV_MBOX_IF_READY)) {
-		cxl_err(cxlds->dev, md_status,
-			"timeout awaiting mailbox ready");
+		cxl_err(dev, md_status, "timeout awaiting mailbox ready");
 		return -ETIMEDOUT;
 	}
 
@@ -246,12 +250,12 @@ static int cxl_pci_setup_mailbox(struct cxl_dev_state *cxlds)
 	 * source for future doorbell busy events.
 	 */
 	if (cxl_pci_mbox_wait_for_doorbell(cxlds) != 0) {
-		cxl_err(cxlds->dev, md_status, "timeout awaiting mailbox idle");
+		cxl_err(dev, md_status, "timeout awaiting mailbox idle");
 		return -ETIMEDOUT;
 	}
 
-	cxlds->mbox_send = cxl_pci_mbox_send;
-	cxlds->payload_size =
+	mds->mbox_send = cxl_pci_mbox_send;
+	mds->payload_size =
 		1 << FIELD_GET(CXLDEV_MBOX_CAP_PAYLOAD_SIZE_MASK, cap);
 
 	/*
@@ -261,15 +265,14 @@ static int cxl_pci_setup_mailbox(struct cxl_dev_state *cxlds)
 	 * there's no point in going forward. If the size is too large, there's
 	 * no harm is soft limiting it.
 	 */
-	cxlds->payload_size = min_t(size_t, cxlds->payload_size, SZ_1M);
-	if (cxlds->payload_size < 256) {
-		dev_err(cxlds->dev, "Mailbox is too small (%zub)",
-			cxlds->payload_size);
+	mds->payload_size = min_t(size_t, mds->payload_size, SZ_1M);
+	if (mds->payload_size < 256) {
+		dev_err(dev, "Mailbox is too small (%zub)",
+			mds->payload_size);
 		return -ENXIO;
 	}
 
-	dev_dbg(cxlds->dev, "Mailbox payload sized %zu",
-		cxlds->payload_size);
+	dev_dbg(dev, "Mailbox payload sized %zu", mds->payload_size);
 
 	return 0;
 }
@@ -433,18 +436,18 @@ static void free_event_buf(void *buf)
 
 /*
  * There is a single buffer for reading event logs from the mailbox.  All logs
- * share this buffer protected by the cxlds->event_log_lock.
+ * share this buffer protected by the mds->event_log_lock.
  */
-static int cxl_mem_alloc_event_buf(struct cxl_dev_state *cxlds)
+static int cxl_mem_alloc_event_buf(struct cxl_memdev_state *mds)
 {
 	struct cxl_get_event_payload *buf;
 
-	buf = kvmalloc(cxlds->payload_size, GFP_KERNEL);
+	buf = kvmalloc(mds->payload_size, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-	cxlds->event.buf = buf;
+	mds->event.buf = buf;
 
-	return devm_add_action_or_reset(cxlds->dev, free_event_buf, buf);
+	return devm_add_action_or_reset(mds->cxlds.dev, free_event_buf, buf);
 }
 
 static int cxl_alloc_irq_vectors(struct pci_dev *pdev)
@@ -477,6 +480,7 @@ static irqreturn_t cxl_event_thread(int irq, void *id)
 {
 	struct cxl_dev_id *dev_id = id;
 	struct cxl_dev_state *cxlds = dev_id->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds);
 	u32 status;
 
 	do {
@@ -489,7 +493,7 @@ static irqreturn_t cxl_event_thread(int irq, void *id)
 		status &= CXLDEV_EVENT_STATUS_ALL;
 		if (!status)
 			break;
-		cxl_mem_get_event_records(cxlds, status);
+		cxl_mem_get_event_records(mds, status);
 		cond_resched();
 	} while (status);
 
@@ -522,7 +526,7 @@ static int cxl_event_req_irq(struct cxl_dev_state *cxlds, u8 setting)
 					 dev_id);
 }
 
-static int cxl_event_get_int_policy(struct cxl_dev_state *cxlds,
+static int cxl_event_get_int_policy(struct cxl_memdev_state *mds,
 				    struct cxl_event_interrupt_policy *policy)
 {
 	struct cxl_mbox_cmd mbox_cmd = {
@@ -532,15 +536,15 @@ static int cxl_event_get_int_policy(struct cxl_dev_state *cxlds,
 	};
 	int rc;
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0)
-		dev_err(cxlds->dev, "Failed to get event interrupt policy : %d",
-			rc);
+		dev_err(mds->cxlds.dev,
+			"Failed to get event interrupt policy : %d", rc);
 
 	return rc;
 }
 
-static int cxl_event_config_msgnums(struct cxl_dev_state *cxlds,
+static int cxl_event_config_msgnums(struct cxl_memdev_state *mds,
 				    struct cxl_event_interrupt_policy *policy)
 {
 	struct cxl_mbox_cmd mbox_cmd;
@@ -559,23 +563,24 @@ static int cxl_event_config_msgnums(struct cxl_dev_state *cxlds,
 		.size_in = sizeof(*policy),
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0) {
-		dev_err(cxlds->dev, "Failed to set event interrupt policy : %d",
+		dev_err(mds->cxlds.dev, "Failed to set event interrupt policy : %d",
 			rc);
 		return rc;
 	}
 
 	/* Retrieve final interrupt settings */
-	return cxl_event_get_int_policy(cxlds, policy);
+	return cxl_event_get_int_policy(mds, policy);
 }
 
-static int cxl_event_irqsetup(struct cxl_dev_state *cxlds)
+static int cxl_event_irqsetup(struct cxl_memdev_state *mds)
 {
+	struct cxl_dev_state *cxlds = &mds->cxlds;
 	struct cxl_event_interrupt_policy policy;
 	int rc;
 
-	rc = cxl_event_config_msgnums(cxlds, &policy);
+	rc = cxl_event_config_msgnums(mds, &policy);
 	if (rc)
 		return rc;
 
@@ -614,7 +619,7 @@ static bool cxl_event_int_is_fw(u8 setting)
 }
 
 static int cxl_event_config(struct pci_host_bridge *host_bridge,
-			    struct cxl_dev_state *cxlds)
+			    struct cxl_memdev_state *mds)
 {
 	struct cxl_event_interrupt_policy policy;
 	int rc;
@@ -626,11 +631,11 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
 	if (!host_bridge->native_cxl_error)
 		return 0;
 
-	rc = cxl_mem_alloc_event_buf(cxlds);
+	rc = cxl_mem_alloc_event_buf(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_event_get_int_policy(cxlds, &policy);
+	rc = cxl_event_get_int_policy(mds, &policy);
 	if (rc)
 		return rc;
 
@@ -638,15 +643,16 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
 	    cxl_event_int_is_fw(policy.warn_settings) ||
 	    cxl_event_int_is_fw(policy.failure_settings) ||
 	    cxl_event_int_is_fw(policy.fatal_settings)) {
-		dev_err(cxlds->dev, "FW still in control of Event Logs despite _OSC settings\n");
+		dev_err(mds->cxlds.dev,
+			"FW still in control of Event Logs despite _OSC settings\n");
 		return -EBUSY;
 	}
 
-	rc = cxl_event_irqsetup(cxlds);
+	rc = cxl_event_irqsetup(mds);
 	if (rc)
 		return rc;
 
-	cxl_mem_get_event_records(cxlds, CXLDEV_EVENT_STATUS_ALL);
+	cxl_mem_get_event_records(mds, CXLDEV_EVENT_STATUS_ALL);
 
 	return 0;
 }
@@ -654,9 +660,10 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
 static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct pci_host_bridge *host_bridge = pci_find_host_bridge(pdev->bus);
+	struct cxl_memdev_state *mds;
+	struct cxl_dev_state *cxlds;
 	struct cxl_register_map map;
 	struct cxl_memdev *cxlmd;
-	struct cxl_dev_state *cxlds;
 	int rc;
 
 	/*
@@ -671,9 +678,10 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return rc;
 	pci_set_master(pdev);
 
-	cxlds = cxl_dev_state_create(&pdev->dev);
-	if (IS_ERR(cxlds))
-		return PTR_ERR(cxlds);
+	mds = cxl_memdev_state_create(&pdev->dev);
+	if (IS_ERR(mds))
+		return PTR_ERR(mds);
+	cxlds = &mds->cxlds;
 	pci_set_drvdata(pdev, cxlds);
 
 	cxlds->rcd = is_cxl_restricted(pdev);
@@ -714,27 +722,27 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	else
 		dev_warn(&pdev->dev, "Media not active (%d)\n", rc);
 
-	rc = cxl_pci_setup_mailbox(cxlds);
+	rc = cxl_pci_setup_mailbox(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_enumerate_cmds(cxlds);
+	rc = cxl_enumerate_cmds(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_set_timestamp(cxlds);
+	rc = cxl_set_timestamp(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_poison_state_init(cxlds);
+	rc = cxl_poison_state_init(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_dev_state_identify(cxlds);
+	rc = cxl_dev_state_identify(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_mem_create_range_info(cxlds);
+	rc = cxl_mem_create_range_info(mds);
 	if (rc)
 		return rc;
 
@@ -746,7 +754,7 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (IS_ERR(cxlmd))
 		return PTR_ERR(cxlmd);
 
-	rc = cxl_event_config(host_bridge, cxlds);
+	rc = cxl_event_config(host_bridge, mds);
 	if (rc)
 		return rc;
 
diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c
index 71cfa1fdf902..7cb8994f8809 100644
--- a/drivers/cxl/pmem.c
+++ b/drivers/cxl/pmem.c
@@ -15,9 +15,9 @@ extern const struct nvdimm_security_ops *cxl_security_ops;
 
 static __read_mostly DECLARE_BITMAP(exclusive_cmds, CXL_MEM_COMMAND_ID_MAX);
 
-static void clear_exclusive(void *cxlds)
+static void clear_exclusive(void *mds)
 {
-	clear_exclusive_cxl_commands(cxlds, exclusive_cmds);
+	clear_exclusive_cxl_commands(mds, exclusive_cmds);
 }
 
 static void unregister_nvdimm(void *nvdimm)
@@ -65,13 +65,13 @@ static int cxl_nvdimm_probe(struct device *dev)
 	struct cxl_nvdimm *cxl_nvd = to_cxl_nvdimm(dev);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
 	struct cxl_nvdimm_bridge *cxl_nvb = cxlmd->cxl_nvb;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	unsigned long flags = 0, cmd_mask = 0;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
 	struct nvdimm *nvdimm;
 	int rc;
 
-	set_exclusive_cxl_commands(cxlds, exclusive_cmds);
-	rc = devm_add_action_or_reset(dev, clear_exclusive, cxlds);
+	set_exclusive_cxl_commands(mds, exclusive_cmds);
+	rc = devm_add_action_or_reset(dev, clear_exclusive, mds);
 	if (rc)
 		return rc;
 
@@ -100,22 +100,23 @@ static struct cxl_driver cxl_nvdimm_driver = {
 	},
 };
 
-static int cxl_pmem_get_config_size(struct cxl_dev_state *cxlds,
+static int cxl_pmem_get_config_size(struct cxl_memdev_state *mds,
 				    struct nd_cmd_get_config_size *cmd,
 				    unsigned int buf_len)
 {
 	if (sizeof(*cmd) > buf_len)
 		return -EINVAL;
 
-	*cmd = (struct nd_cmd_get_config_size) {
-		 .config_size = cxlds->lsa_size,
-		 .max_xfer = cxlds->payload_size - sizeof(struct cxl_mbox_set_lsa),
+	*cmd = (struct nd_cmd_get_config_size){
+		.config_size = mds->lsa_size,
+		.max_xfer =
+			mds->payload_size - sizeof(struct cxl_mbox_set_lsa),
 	};
 
 	return 0;
 }
 
-static int cxl_pmem_get_config_data(struct cxl_dev_state *cxlds,
+static int cxl_pmem_get_config_data(struct cxl_memdev_state *mds,
 				    struct nd_cmd_get_config_data_hdr *cmd,
 				    unsigned int buf_len)
 {
@@ -140,13 +141,13 @@ static int cxl_pmem_get_config_data(struct cxl_dev_state *cxlds,
 		.payload_out = cmd->out_buf,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	cmd->status = 0;
 
 	return rc;
 }
 
-static int cxl_pmem_set_config_data(struct cxl_dev_state *cxlds,
+static int cxl_pmem_set_config_data(struct cxl_memdev_state *mds,
 				    struct nd_cmd_set_config_hdr *cmd,
 				    unsigned int buf_len)
 {
@@ -176,7 +177,7 @@ static int cxl_pmem_set_config_data(struct cxl_dev_state *cxlds,
 		.size_in = struct_size(set_lsa, data, cmd->in_length),
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 
 	/*
 	 * Set "firmware" status (4-packed bytes at the end of the input
@@ -194,18 +195,18 @@ static int cxl_pmem_nvdimm_ctl(struct nvdimm *nvdimm, unsigned int cmd,
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	unsigned long cmd_mask = nvdimm_cmd_mask(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 
 	if (!test_bit(cmd, &cmd_mask))
 		return -ENOTTY;
 
 	switch (cmd) {
 	case ND_CMD_GET_CONFIG_SIZE:
-		return cxl_pmem_get_config_size(cxlds, buf, buf_len);
+		return cxl_pmem_get_config_size(mds, buf, buf_len);
 	case ND_CMD_GET_CONFIG_DATA:
-		return cxl_pmem_get_config_data(cxlds, buf, buf_len);
+		return cxl_pmem_get_config_data(mds, buf, buf_len);
 	case ND_CMD_SET_CONFIG_DATA:
-		return cxl_pmem_set_config_data(cxlds, buf, buf_len);
+		return cxl_pmem_set_config_data(mds, buf, buf_len);
 	default:
 		return -ENOTTY;
 	}
diff --git a/drivers/cxl/security.c b/drivers/cxl/security.c
index 4ad4bda2d18e..8c98fc674fa7 100644
--- a/drivers/cxl/security.c
+++ b/drivers/cxl/security.c
@@ -14,7 +14,7 @@ static unsigned long cxl_pmem_get_security_flags(struct nvdimm *nvdimm,
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	unsigned long security_flags = 0;
 	struct cxl_get_security_output {
 		__le32 flags;
@@ -29,7 +29,7 @@ static unsigned long cxl_pmem_get_security_flags(struct nvdimm *nvdimm,
 		.payload_out = &out,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0)
 		return 0;
 
@@ -67,7 +67,7 @@ static int cxl_pmem_security_change_key(struct nvdimm *nvdimm,
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_cmd mbox_cmd;
 	struct cxl_set_pass set_pass;
 
@@ -84,7 +84,7 @@ static int cxl_pmem_security_change_key(struct nvdimm *nvdimm,
 		.payload_in = &set_pass,
 	};
 
-	return cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	return cxl_internal_send_cmd(mds, &mbox_cmd);
 }
 
 static int __cxl_pmem_security_disable(struct nvdimm *nvdimm,
@@ -93,7 +93,7 @@ static int __cxl_pmem_security_disable(struct nvdimm *nvdimm,
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_disable_pass dis_pass;
 	struct cxl_mbox_cmd mbox_cmd;
 
@@ -109,7 +109,7 @@ static int __cxl_pmem_security_disable(struct nvdimm *nvdimm,
 		.payload_in = &dis_pass,
 	};
 
-	return cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	return cxl_internal_send_cmd(mds, &mbox_cmd);
 }
 
 static int cxl_pmem_security_disable(struct nvdimm *nvdimm,
@@ -128,12 +128,12 @@ static int cxl_pmem_security_freeze(struct nvdimm *nvdimm)
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_cmd mbox_cmd = {
 		.opcode = CXL_MBOX_OP_FREEZE_SECURITY,
 	};
 
-	return cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	return cxl_internal_send_cmd(mds, &mbox_cmd);
 }
 
 static int cxl_pmem_security_unlock(struct nvdimm *nvdimm,
@@ -141,7 +141,7 @@ static int cxl_pmem_security_unlock(struct nvdimm *nvdimm,
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	u8 pass[NVDIMM_PASSPHRASE_LEN];
 	struct cxl_mbox_cmd mbox_cmd;
 	int rc;
@@ -153,7 +153,7 @@ static int cxl_pmem_security_unlock(struct nvdimm *nvdimm,
 		.payload_in = pass,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0)
 		return rc;
 
@@ -166,7 +166,7 @@ static int cxl_pmem_security_passphrase_erase(struct nvdimm *nvdimm,
 {
 	struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
 	struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
-	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
 	struct cxl_mbox_cmd mbox_cmd;
 	struct cxl_pass_erase erase;
 	int rc;
@@ -182,7 +182,7 @@ static int cxl_pmem_security_passphrase_erase(struct nvdimm *nvdimm,
 		.payload_in = &erase,
 	};
 
-	rc = cxl_internal_send_cmd(cxlds, &mbox_cmd);
+	rc = cxl_internal_send_cmd(mds, &mbox_cmd);
 	if (rc < 0)
 		return rc;
 
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index bdaf086d994e..6fb5718588f3 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -102,7 +102,7 @@ struct mock_event_log {
 };
 
 struct mock_event_store {
-	struct cxl_dev_state *cxlds;
+	struct cxl_memdev_state *mds;
 	struct mock_event_log mock_logs[CXL_EVENT_TYPE_MAX];
 	u32 ev_status;
 };
@@ -291,7 +291,7 @@ static void cxl_mock_event_trigger(struct device *dev)
 			event_reset_log(log);
 	}
 
-	cxl_mem_get_event_records(mes->cxlds, mes->ev_status);
+	cxl_mem_get_event_records(mes->mds, mes->ev_status);
 }
 
 struct cxl_event_record_raw maint_needed = {
@@ -451,7 +451,7 @@ static int mock_gsl(struct cxl_mbox_cmd *cmd)
 	return 0;
 }
 
-static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+static int mock_get_log(struct cxl_memdev_state *mds, struct cxl_mbox_cmd *cmd)
 {
 	struct cxl_mbox_get_log *gl = cmd->payload_in;
 	u32 offset = le32_to_cpu(gl->offset);
@@ -461,7 +461,7 @@ static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
 
 	if (cmd->size_in < sizeof(*gl))
 		return -EINVAL;
-	if (length > cxlds->payload_size)
+	if (length > mds->payload_size)
 		return -EINVAL;
 	if (offset + length > sizeof(mock_cel))
 		return -EINVAL;
@@ -1105,8 +1105,10 @@ static struct attribute *cxl_mock_mem_core_attrs[] = {
 };
 ATTRIBUTE_GROUPS(cxl_mock_mem_core);
 
-static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+static int cxl_mock_mbox_send(struct cxl_memdev_state *mds,
+			      struct cxl_mbox_cmd *cmd)
 {
+	struct cxl_dev_state *cxlds = &mds->cxlds;
 	struct device *dev = cxlds->dev;
 	struct cxl_mockmem_data *mdata = dev_get_drvdata(dev);
 	int rc = -EIO;
@@ -1119,7 +1121,7 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
 		rc = mock_gsl(cmd);
 		break;
 	case CXL_MBOX_OP_GET_LOG:
-		rc = mock_get_log(cxlds, cmd);
+		rc = mock_get_log(mds, cmd);
 		break;
 	case CXL_MBOX_OP_IDENTIFY:
 		if (cxlds->rcd)
@@ -1207,6 +1209,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct cxl_memdev *cxlmd;
+	struct cxl_memdev_state *mds;
 	struct cxl_dev_state *cxlds;
 	struct cxl_mockmem_data *mdata;
 	int rc;
@@ -1223,48 +1226,50 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
 	if (rc)
 		return rc;
 
-	cxlds = cxl_dev_state_create(dev);
-	if (IS_ERR(cxlds))
-		return PTR_ERR(cxlds);
+	mds = cxl_memdev_state_create(dev);
+	if (IS_ERR(mds))
+		return PTR_ERR(mds);
+
+	mds->mbox_send = cxl_mock_mbox_send;
+	mds->payload_size = SZ_4K;
+	mds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf;
 
+	cxlds = &mds->cxlds;
 	cxlds->serial = pdev->id;
-	cxlds->mbox_send = cxl_mock_mbox_send;
-	cxlds->payload_size = SZ_4K;
-	cxlds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf;
 	if (is_rcd(pdev)) {
 		cxlds->rcd = true;
 		cxlds->component_reg_phys = CXL_RESOURCE_NONE;
 	}
 
-	rc = cxl_enumerate_cmds(cxlds);
+	rc = cxl_enumerate_cmds(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_poison_state_init(cxlds);
+	rc = cxl_poison_state_init(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_set_timestamp(cxlds);
+	rc = cxl_set_timestamp(mds);
 	if (rc)
 		return rc;
 
 	cxlds->media_ready = true;
-	rc = cxl_dev_state_identify(cxlds);
+	rc = cxl_dev_state_identify(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_mem_create_range_info(cxlds);
+	rc = cxl_mem_create_range_info(mds);
 	if (rc)
 		return rc;
 
-	mdata->mes.cxlds = cxlds;
+	mdata->mes.mds = mds;
 	cxl_mock_add_event_logs(&mdata->mes);
 
 	cxlmd = devm_cxl_add_memdev(cxlds);
 	if (IS_ERR(cxlmd))
 		return PTR_ERR(cxlmd);
 
-	cxl_mem_get_event_records(cxlds, CXLDEV_EVENT_STATUS_ALL);
+	cxl_mem_get_event_records(mds, CXLDEV_EVENT_STATUS_ALL);
 
 	return 0;
 }