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

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 */