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authorDavid S. Miller <davem@davemloft.net>2009-06-15 03:02:23 -0700
committerDavid S. Miller <davem@davemloft.net>2009-06-15 03:02:23 -0700
commit9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch)
tree8d104ec2a459346b99413b0b77421ca7b9936c1a /include/scsi
parentca44d6e60f9de26281fda203f58b570e1748c015 (diff)
parent45e3e1935e2857c54783291107d33323b3ef33c8 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/fc/fc_fip.h7
-rw-r--r--include/scsi/iscsi_if.h49
-rw-r--r--include/scsi/libfc.h1
-rw-r--r--include/scsi/libiscsi.h8
-rw-r--r--include/scsi/osd_attributes.h74
-rw-r--r--include/scsi/osd_initiator.h14
-rw-r--r--include/scsi/osd_protocol.h8
-rw-r--r--include/scsi/scsi_cmnd.h2
-rw-r--r--include/scsi/scsi_transport_fc.h4
-rw-r--r--include/scsi/scsi_transport_iscsi.h8
10 files changed, 156 insertions, 19 deletions
diff --git a/include/scsi/fc/fc_fip.h b/include/scsi/fc/fc_fip.h
index 0627a9ae6347..3d138c1fcf8a 100644
--- a/include/scsi/fc/fc_fip.h
+++ b/include/scsi/fc/fc_fip.h
@@ -22,13 +22,6 @@
* http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf
*/
-/*
- * The FIP ethertype eventually goes in net/if_ether.h.
- */
-#ifndef ETH_P_FIP
-#define ETH_P_FIP 0x8914 /* FIP Ethertype */
-#endif
-
#define FIP_DEF_PRI 128 /* default selection priority */
#define FIP_DEF_FC_MAP 0x0efc00 /* default FCoE MAP (MAC OUI) value */
#define FIP_DEF_FKA 8000 /* default FCF keep-alive/advert period (mS) */
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index d0ed5226f8c4..4426f00da5ff 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -22,6 +22,11 @@
#define ISCSI_IF_H
#include <scsi/iscsi_proto.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+
+#define ISCSI_NL_GRP_ISCSID 1
+#define ISCSI_NL_GRP_UIP 2
#define UEVENT_BASE 10
#define KEVENT_BASE 100
@@ -50,7 +55,10 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15,
ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16,
ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17,
- ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18,
+ ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18,
+ ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST = UEVENT_BASE + 19,
+
+ ISCSI_UEVENT_PATH_UPDATE = UEVENT_BASE + 20,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -59,6 +67,9 @@ enum iscsi_uevent_e {
ISCSI_KEVENT_DESTROY_SESSION = KEVENT_BASE + 4,
ISCSI_KEVENT_UNBIND_SESSION = KEVENT_BASE + 5,
ISCSI_KEVENT_CREATE_SESSION = KEVENT_BASE + 6,
+
+ ISCSI_KEVENT_PATH_REQ = KEVENT_BASE + 7,
+ ISCSI_KEVENT_IF_DOWN = KEVENT_BASE + 8,
};
enum iscsi_tgt_dscvr {
@@ -131,6 +142,10 @@ struct iscsi_uevent {
struct msg_transport_connect {
uint32_t non_blocking;
} ep_connect;
+ struct msg_transport_connect_through_host {
+ uint32_t host_no;
+ uint32_t non_blocking;
+ } ep_connect_through_host;
struct msg_transport_poll {
uint64_t ep_handle;
uint32_t timeout_ms;
@@ -154,6 +169,9 @@ struct iscsi_uevent {
uint32_t param; /* enum iscsi_host_param */
uint32_t len;
} set_host_param;
+ struct msg_set_path {
+ uint32_t host_no;
+ } set_path;
} u;
union {
/* messages k -> u */
@@ -187,10 +205,39 @@ struct iscsi_uevent {
struct msg_transport_connect_ret {
uint64_t handle;
} ep_connect_ret;
+ struct msg_req_path {
+ uint32_t host_no;
+ } req_path;
+ struct msg_notify_if_down {
+ uint32_t host_no;
+ } notify_if_down;
} r;
} __attribute__ ((aligned (sizeof(uint64_t))));
/*
+ * To keep the struct iscsi_uevent size the same for userspace code
+ * compatibility, the main structure for ISCSI_UEVENT_PATH_UPDATE and
+ * ISCSI_KEVENT_PATH_REQ is defined separately and comes after the
+ * struct iscsi_uevent in the NETLINK_ISCSI message.
+ */
+struct iscsi_path {
+ uint64_t handle;
+ uint8_t mac_addr[6];
+ uint8_t mac_addr_old[6];
+ uint32_t ip_addr_len; /* 4 or 16 */
+ union {
+ struct in_addr v4_addr;
+ struct in6_addr v6_addr;
+ } src;
+ union {
+ struct in_addr v4_addr;
+ struct in6_addr v6_addr;
+ } dst;
+ uint16_t vlan_id;
+ uint16_t pmtu;
+} __attribute__ ((aligned (sizeof(uint64_t))));
+
+/*
* Common error codes
*/
enum iscsi_err {
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 45f9cc642c46..ebdd9f4cf070 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -679,6 +679,7 @@ struct fc_lport {
unsigned int e_d_tov;
unsigned int r_a_tov;
u8 max_retry_count;
+ u8 max_rport_retry_count;
u16 link_speed;
u16 link_supported_speeds;
u16 lro_xid; /* max xid for fcoe lro */
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 0289f5745fb9..196525cd402f 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -82,9 +82,12 @@ enum {
enum {
+ ISCSI_TASK_FREE,
ISCSI_TASK_COMPLETED,
ISCSI_TASK_PENDING,
ISCSI_TASK_RUNNING,
+ ISCSI_TASK_ABRT_TMF, /* aborted due to TMF */
+ ISCSI_TASK_ABRT_SESS_RECOV, /* aborted due to session recovery */
};
struct iscsi_r2t_info {
@@ -181,9 +184,7 @@ struct iscsi_conn {
/* xmit */
struct list_head mgmtqueue; /* mgmt (control) xmit queue */
- struct list_head mgmt_run_list; /* list of control tasks */
- struct list_head xmitqueue; /* data-path cmd queue */
- struct list_head run_list; /* list of cmds in progress */
+ struct list_head cmdqueue; /* data-path cmd queue */
struct list_head requeue; /* tasks needing another run */
struct work_struct xmitwork; /* per-conn. xmit workqueue */
unsigned long suspend_tx; /* suspend Tx */
@@ -406,6 +407,7 @@ extern int __iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
char *, int);
extern int iscsi_verify_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
+extern struct iscsi_task *iscsi_itt_to_task(struct iscsi_conn *, itt_t);
extern void iscsi_requeue_task(struct iscsi_task *task);
extern void iscsi_put_task(struct iscsi_task *task);
extern void __iscsi_get_task(struct iscsi_task *task);
diff --git a/include/scsi/osd_attributes.h b/include/scsi/osd_attributes.h
index f888a6fda073..56e920ade326 100644
--- a/include/scsi/osd_attributes.h
+++ b/include/scsi/osd_attributes.h
@@ -29,6 +29,7 @@ enum {
OSD_APAGE_PARTITION_INFORMATION = OSD_APAGE_PARTITION_FIRST + 1,
OSD_APAGE_PARTITION_QUOTAS = OSD_APAGE_PARTITION_FIRST + 2,
OSD_APAGE_PARTITION_TIMESTAMP = OSD_APAGE_PARTITION_FIRST + 3,
+ OSD_APAGE_PARTITION_ATTR_ACCESS = OSD_APAGE_PARTITION_FIRST + 4,
OSD_APAGE_PARTITION_SECURITY = OSD_APAGE_PARTITION_FIRST + 5,
OSD_APAGE_PARTITION_LAST = 0x5FFFFFFF,
@@ -51,7 +52,9 @@ enum {
OSD_APAGE_RESERVED_TYPE_LAST = 0xEFFFFFFF,
OSD_APAGE_COMMON_FIRST = 0xF0000000,
- OSD_APAGE_COMMON_LAST = 0xFFFFFFFE,
+ OSD_APAGE_COMMON_LAST = 0xFFFFFFFD,
+
+ OSD_APAGE_CURRENT_COMMAND = 0xFFFFFFFE,
OSD_APAGE_REQUEST_ALL = 0xFFFFFFFF,
};
@@ -106,10 +109,30 @@ enum {
OSD_ATTR_RI_PRODUCT_REVISION_LEVEL = 0x7, /* 4 */
OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER = 0x8, /* variable */
OSD_ATTR_RI_OSD_NAME = 0x9, /* variable */
+ OSD_ATTR_RI_MAX_CDB_CONTINUATION_LEN = 0xA, /* 4 */
OSD_ATTR_RI_TOTAL_CAPACITY = 0x80, /* 8 */
OSD_ATTR_RI_USED_CAPACITY = 0x81, /* 8 */
OSD_ATTR_RI_NUMBER_OF_PARTITIONS = 0xC0, /* 8 */
OSD_ATTR_RI_CLOCK = 0x100, /* 6 */
+ OARI_DEFAULT_ISOLATION_METHOD = 0X110, /* 1 */
+ OARI_SUPPORTED_ISOLATION_METHODS = 0X111, /* 32 */
+
+ OARI_DATA_ATOMICITY_GUARANTEE = 0X120, /* 8 */
+ OARI_DATA_ATOMICITY_ALIGNMENT = 0X121, /* 8 */
+ OARI_ATTRIBUTES_ATOMICITY_GUARANTEE = 0X122, /* 8 */
+ OARI_DATA_ATTRIBUTES_ATOMICITY_MULTIPLIER = 0X123, /* 1 */
+
+ OARI_MAXIMUM_SNAPSHOTS_COUNT = 0X1C1, /* 0 or 4 */
+ OARI_MAXIMUM_CLONES_COUNT = 0X1C2, /* 0 or 4 */
+ OARI_MAXIMUM_BRANCH_DEPTH = 0X1CC, /* 0 or 4 */
+ OARI_SUPPORTED_OBJECT_DUPLICATION_METHOD_FIRST = 0X200, /* 0 or 4 */
+ OARI_SUPPORTED_OBJECT_DUPLICATION_METHOD_LAST = 0X2ff, /* 0 or 4 */
+ OARI_SUPPORTED_TIME_OF_DUPLICATION_METHOD_FIRST = 0X300, /* 0 or 4 */
+ OARI_SUPPORTED_TIME_OF_DUPLICATION_METHOD_LAST = 0X30F, /* 0 or 4 */
+ OARI_SUPPORT_FOR_DUPLICATED_OBJECT_FREEZING = 0X310, /* 0 or 4 */
+ OARI_SUPPORT_FOR_SNAPSHOT_REFRESHING = 0X311, /* 0 or 1 */
+ OARI_SUPPORTED_CDB_CONTINUATION_DESC_TYPE_FIRST = 0X7000001,/* 0 or 4 */
+ OARI_SUPPORTED_CDB_CONTINUATION_DESC_TYPE_LAST = 0X700FFFF,/* 0 or 4 */
};
/* Root_Information_attributes_page does not have a get_page structure */
@@ -120,7 +143,15 @@ enum {
OSD_ATTR_PI_PARTITION_ID = 0x1, /* 8 */
OSD_ATTR_PI_USERNAME = 0x9, /* variable */
OSD_ATTR_PI_USED_CAPACITY = 0x81, /* 8 */
+ OSD_ATTR_PI_USED_CAPACITY_INCREMENT = 0x84, /* 0 or 8 */
OSD_ATTR_PI_NUMBER_OF_OBJECTS = 0xC1, /* 8 */
+
+ OSD_ATTR_PI_ACTUAL_DATA_SPACE = 0xD1, /* 0 or 8 */
+ OSD_ATTR_PI_RESERVED_DATA_SPACE = 0xD2, /* 0 or 8 */
+ OSD_ATTR_PI_DEFAULT_SNAPSHOT_DUPLICATION_METHOD = 0x200,/* 0 or 4 */
+ OSD_ATTR_PI_DEFAULT_CLONE_DUPLICATION_METHOD = 0x201,/* 0 or 4 */
+ OSD_ATTR_PI_DEFAULT_SP_TIME_OF_DUPLICATION = 0x300,/* 0 or 4 */
+ OSD_ATTR_PI_DEFAULT_CLONE_TIME_OF_DUPLICATION = 0x301,/* 0 or 4 */
};
/* Partition Information attributes page does not have a get_page structure */
@@ -131,6 +162,7 @@ enum {
OSD_ATTR_CI_PARTITION_ID = 0x1, /* 8 */
OSD_ATTR_CI_COLLECTION_OBJECT_ID = 0x2, /* 8 */
OSD_ATTR_CI_USERNAME = 0x9, /* variable */
+ OSD_ATTR_CI_COLLECTION_TYPE = 0xA, /* 1 */
OSD_ATTR_CI_USED_CAPACITY = 0x81, /* 8 */
};
/* Collection Information attributes page does not have a get_page structure */
@@ -144,6 +176,8 @@ enum {
OSD_ATTR_OI_USERNAME = 0x9, /* variable */
OSD_ATTR_OI_USED_CAPACITY = 0x81, /* 8 */
OSD_ATTR_OI_LOGICAL_LENGTH = 0x82, /* 8 */
+ SD_ATTR_OI_ACTUAL_DATA_SPACE = 0XD1, /* 0 OR 8 */
+ SD_ATTR_OI_RESERVED_DATA_SPACE = 0XD2, /* 0 OR 8 */
};
/* Object Information attributes page does not have a get_page structure */
@@ -248,7 +282,18 @@ struct object_timestamps_attributes_page {
struct osd_timestamp data_modified_time;
} __packed;
-/* 7.1.2.19 Collections attributes page */
+/* OSD2r05: 7.1.3.19 Attributes Access attributes page
+ * (OSD_APAGE_PARTITION_ATTR_ACCESS)
+ *
+ * each attribute is of the form below. Total array length is deduced
+ * from the attribute's length
+ * (See allowed_attributes_access of the struct osd_cap_object_descriptor)
+ */
+struct attributes_access_attr {
+ struct osd_attributes_list_attrid attr_list[0];
+} __packed;
+
+/* OSD2r05: 7.1.2.21 Collections attributes page */
/* TBD */
/* 7.1.2.20 Root Policy/Security attributes page (OSD_APAGE_ROOT_SECURITY) */
@@ -324,4 +369,29 @@ struct object_security_attributes_page {
__be32 policy_access_tag;
} __packed;
+/* OSD2r05: 7.1.3.31 Current Command attributes page
+ * (OSD_APAGE_CURRENT_COMMAND)
+ */
+enum {
+ OSD_ATTR_CC_RESPONSE_INTEGRITY_CHECK_VALUE = 0x1, /* 32 */
+ OSD_ATTR_CC_OBJECT_TYPE = 0x2, /* 1 */
+ OSD_ATTR_CC_PARTITION_ID = 0x3, /* 8 */
+ OSD_ATTR_CC_OBJECT_ID = 0x4, /* 8 */
+ OSD_ATTR_CC_STARTING_BYTE_ADDRESS_OF_APPEND = 0x5, /* 8 */
+ OSD_ATTR_CC_CHANGE_IN_USED_CAPACITY = 0x6, /* 8 */
+};
+
+/*TBD: osdv1_current_command_attributes_page */
+
+struct osdv2_current_command_attributes_page {
+ struct osd_attr_page_header hdr; /* id=0xFFFFFFFE, size=0x44 */
+ u8 response_integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
+ u8 object_type;
+ u8 reserved[3];
+ __be64 partition_id;
+ __be64 object_id;
+ __be64 starting_byte_address_of_append;
+ __be64 change_in_used_capacity;
+};
+
#endif /*ndef __OSD_ATTRIBUTES_H__*/
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index b24d9616eb46..02bd9f716357 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -18,6 +18,7 @@
#include "osd_types.h"
#include <linux/blkdev.h>
+#include <scsi/scsi_device.h>
/* Note: "NI" in comments below means "Not Implemented yet" */
@@ -47,6 +48,7 @@ enum osd_std_version {
*/
struct osd_dev {
struct scsi_device *scsi_device;
+ struct file *file;
unsigned def_timeout;
#ifdef OSD_VER1_SUPPORT
@@ -69,6 +71,10 @@ void osd_dev_fini(struct osd_dev *od);
/* some hi level device operations */
int osd_auto_detect_ver(struct osd_dev *od, void *caps); /* GFP_KERNEL */
+static inline struct request_queue *osd_request_queue(struct osd_dev *od)
+{
+ return od->scsi_device->request_queue;
+}
/* we might want to use function vector in the future */
static inline void osd_dev_set_ver(struct osd_dev *od, enum osd_std_version v)
@@ -363,7 +369,9 @@ void osd_req_create_object(struct osd_request *or, struct osd_obj_id *);
void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *);
void osd_req_write(struct osd_request *or,
- const struct osd_obj_id *, struct bio *data_out, u64 offset);
+ const struct osd_obj_id *obj, u64 offset, struct bio *bio, u64 len);
+int osd_req_write_kern(struct osd_request *or,
+ const struct osd_obj_id *obj, u64 offset, void *buff, u64 len);
void osd_req_append(struct osd_request *or,
const struct osd_obj_id *, struct bio *data_out);/* NI */
void osd_req_create_write(struct osd_request *or,
@@ -378,7 +386,9 @@ void osd_req_flush_object(struct osd_request *or,
/*V2*/ u64 offset, /*V2*/ u64 len);
void osd_req_read(struct osd_request *or,
- const struct osd_obj_id *, struct bio *data_in, u64 offset);
+ const struct osd_obj_id *obj, u64 offset, struct bio *bio, u64 len);
+int osd_req_read_kern(struct osd_request *or,
+ const struct osd_obj_id *obj, u64 offset, void *buff, u64 len);
/*
* Root/Partition/Collection/Object Attributes commands
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
index 62b2ab8c69d4..2cc8e8b1cc19 100644
--- a/include/scsi/osd_protocol.h
+++ b/include/scsi/osd_protocol.h
@@ -303,7 +303,15 @@ enum osd_service_actions {
OSD_ACT_V2(REMOVE_MEMBER_OBJECTS, 0x21)
OSD_ACT_V2(GET_MEMBER_ATTRIBUTES, 0x22)
OSD_ACT_V2(SET_MEMBER_ATTRIBUTES, 0x23)
+
+ OSD_ACT_V2(CREATE_CLONE, 0x28)
+ OSD_ACT_V2(CREATE_SNAPSHOT, 0x29)
+ OSD_ACT_V2(DETACH_CLONE, 0x2A)
+ OSD_ACT_V2(REFRESH_SNAPSHOT_CLONE, 0x2B)
+ OSD_ACT_V2(RESTORE_PARTITION_FROM_SNAPSHOT, 0x2C)
+
OSD_ACT_V2(READ_MAP, 0x31)
+ OSD_ACT_V2(READ_MAPS_COMPARE, 0x32)
OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND, 0x8F7E, 0x8F7C)
OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT, 0x8F7F, 0x8F7D)
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 43b50d36925c..3878d1dc7f59 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -270,7 +270,7 @@ static inline unsigned char scsi_get_prot_type(struct scsi_cmnd *scmd)
static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
{
- return scmd->request->sector;
+ return blk_rq_pos(scmd->request);
}
static inline unsigned scsi_prot_sg_count(struct scsi_cmnd *cmd)
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index c9184f756cad..68a8d873bbd9 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -680,7 +680,7 @@ fc_remote_port_chkready(struct fc_rport *rport)
if (rport->roles & FC_PORT_ROLE_FCP_TARGET)
result = 0;
else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
- result = DID_TRANSPORT_DISRUPTED << 16;
+ result = DID_IMM_RETRY << 16;
else
result = DID_NO_CONNECT << 16;
break;
@@ -688,7 +688,7 @@ fc_remote_port_chkready(struct fc_rport *rport)
if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)
result = DID_TRANSPORT_FAILFAST << 16;
else
- result = DID_TRANSPORT_DISRUPTED << 16;
+ result = DID_IMM_RETRY << 16;
break;
default:
result = DID_NO_CONNECT << 16;
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 457588e1119b..349c7f30720d 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -126,12 +126,14 @@ struct iscsi_transport {
int *index, int *age);
void (*session_recovery_timedout) (struct iscsi_cls_session *session);
- struct iscsi_endpoint *(*ep_connect) (struct sockaddr *dst_addr,
+ struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost,
+ struct sockaddr *dst_addr,
int non_blocking);
int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms);
void (*ep_disconnect) (struct iscsi_endpoint *ep);
int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type,
uint32_t enable, struct sockaddr *dst_addr);
+ int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params);
};
/*
@@ -148,6 +150,10 @@ extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn,
extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
char *data, uint32_t data_size);
+extern int iscsi_offload_mesg(struct Scsi_Host *shost,
+ struct iscsi_transport *transport, uint32_t type,
+ char *data, uint16_t data_size);
+
struct iscsi_cls_conn {
struct list_head conn_list; /* item in connlist */
void *dd_data; /* LLD private data */